[766] | 1 | /* |
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| 2 | Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. |
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| 3 | |
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| 4 | |
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| 5 | The MySQL Connector/J is licensed under the terms of the GPLv2 |
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| 6 | <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors. |
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| 7 | There are special exceptions to the terms and conditions of the GPLv2 as it is applied to |
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| 8 | this software, see the FLOSS License Exception |
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| 9 | <http://www.mysql.com/about/legal/licensing/foss-exception.html>. |
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| 10 | |
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| 11 | This program is free software; you can redistribute it and/or modify it under the terms |
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| 12 | of the GNU General Public License as published by the Free Software Foundation; version 2 |
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| 13 | of the License. |
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| 14 | |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
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| 16 | without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| 17 | See the GNU General Public License for more details. |
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| 18 | |
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| 19 | You should have received a copy of the GNU General Public License along with this |
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| 20 | program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth |
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| 21 | Floor, Boston, MA 02110-1301 USA |
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| 22 | |
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| 23 | |
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| 24 | |
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| 25 | */ |
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| 26 | package com.mysql.jdbc; |
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| 27 | |
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| 28 | import java.io.ByteArrayOutputStream; |
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| 29 | import java.io.IOException; |
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| 30 | import java.io.StringReader; |
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| 31 | import java.io.UnsupportedEncodingException; |
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| 32 | import java.lang.reflect.InvocationTargetException; |
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| 33 | import java.lang.reflect.Method; |
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| 34 | import java.math.BigDecimal; |
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| 35 | import java.nio.ByteBuffer; |
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| 36 | import java.nio.charset.Charset; |
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| 37 | import java.nio.charset.IllegalCharsetNameException; |
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| 38 | import java.nio.charset.UnsupportedCharsetException; |
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| 39 | import java.sql.SQLException; |
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| 40 | import java.util.ArrayList; |
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| 41 | import java.util.List; |
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| 42 | import java.util.StringTokenizer; |
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| 43 | import java.util.concurrent.ConcurrentHashMap; |
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| 44 | |
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| 45 | /** |
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| 46 | * Various utility methods for converting to/from byte arrays in the platform |
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| 47 | * encoding |
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| 48 | * |
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| 49 | * @author Mark Matthews |
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| 50 | */ |
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| 51 | public class StringUtils { |
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| 52 | |
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| 53 | private static final int BYTE_RANGE = (1 + Byte.MAX_VALUE) - Byte.MIN_VALUE; |
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| 54 | |
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| 55 | private static byte[] allBytes = new byte[BYTE_RANGE]; |
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| 56 | |
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| 57 | private static char[] byteToChars = new char[BYTE_RANGE]; |
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| 58 | |
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| 59 | private static Method toPlainStringMethod; |
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| 60 | |
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| 61 | static final int WILD_COMPARE_MATCH_NO_WILD = 0; |
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| 62 | |
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| 63 | static final int WILD_COMPARE_MATCH_WITH_WILD = 1; |
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| 64 | |
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| 65 | static final int WILD_COMPARE_NO_MATCH = -1; |
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| 66 | |
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| 67 | private static final ConcurrentHashMap<String,Charset> charsetsByAlias = |
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| 68 | new ConcurrentHashMap<String,Charset>(); |
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| 69 | |
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| 70 | private static final String platformEncoding = System.getProperty("file.encoding"); |
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| 71 | |
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| 72 | private static final String VALID_ID_CHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ0123456789$_#@"; |
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| 73 | |
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| 74 | static Charset findCharset(String alias) throws UnsupportedEncodingException { |
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| 75 | try { |
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| 76 | Charset cs = charsetsByAlias.get(alias); |
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| 77 | |
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| 78 | if (cs == null) { |
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| 79 | cs = Charset.forName(alias); |
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| 80 | charsetsByAlias.putIfAbsent(alias, cs); |
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| 81 | } |
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| 82 | |
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| 83 | return cs; |
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| 84 | |
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| 85 | // We re-throw these runtimes for compatibility with java.io |
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| 86 | } catch (UnsupportedCharsetException uce) { |
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| 87 | throw new UnsupportedEncodingException(alias); |
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| 88 | } catch (IllegalCharsetNameException icne) { |
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| 89 | throw new UnsupportedEncodingException(alias); |
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| 90 | } catch (IllegalArgumentException iae) { |
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| 91 | throw new UnsupportedEncodingException(alias); |
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| 92 | } |
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| 93 | } |
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| 94 | |
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| 95 | static { |
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| 96 | for (int i = Byte.MIN_VALUE; i <= Byte.MAX_VALUE; i++) { |
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| 97 | allBytes[i - Byte.MIN_VALUE] = (byte) i; |
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| 98 | } |
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| 99 | |
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| 100 | String allBytesString = new String(allBytes, 0, Byte.MAX_VALUE |
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| 101 | - Byte.MIN_VALUE); |
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| 102 | |
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| 103 | int allBytesStringLen = allBytesString.length(); |
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| 104 | |
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| 105 | for (int i = 0; (i < (Byte.MAX_VALUE - Byte.MIN_VALUE)) |
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| 106 | && (i < allBytesStringLen); i++) { |
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| 107 | byteToChars[i] = allBytesString.charAt(i); |
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| 108 | } |
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| 109 | |
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| 110 | try { |
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| 111 | toPlainStringMethod = BigDecimal.class.getMethod("toPlainString", |
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| 112 | new Class[0]); |
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| 113 | } catch (NoSuchMethodException nsme) { |
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| 114 | // that's okay, we fallback to .toString() |
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| 115 | } |
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| 116 | } |
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| 117 | |
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| 118 | /** |
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| 119 | * Takes care of the fact that Sun changed the output of |
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| 120 | * BigDecimal.toString() between JDK-1.4 and JDK 5 |
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| 121 | * |
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| 122 | * @param decimal |
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| 123 | * the big decimal to stringify |
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| 124 | * |
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| 125 | * @return a string representation of 'decimal' |
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| 126 | */ |
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| 127 | public static String consistentToString(BigDecimal decimal) { |
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| 128 | if (decimal == null) { |
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| 129 | return null; |
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| 130 | } |
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| 131 | |
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| 132 | if (toPlainStringMethod != null) { |
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| 133 | try { |
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| 134 | return (String) toPlainStringMethod.invoke(decimal, (Object[])null); |
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| 135 | } catch (InvocationTargetException invokeEx) { |
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| 136 | // that's okay, we fall-through to decimal.toString() |
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| 137 | } catch (IllegalAccessException accessEx) { |
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| 138 | // that's okay, we fall-through to decimal.toString() |
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| 139 | } |
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| 140 | } |
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| 141 | |
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| 142 | return decimal.toString(); |
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| 143 | } |
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| 144 | |
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| 145 | /** |
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| 146 | * Dumps the given bytes to STDOUT as a hex dump (up to length bytes). |
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| 147 | * |
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| 148 | * @param byteBuffer |
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| 149 | * the data to print as hex |
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| 150 | * @param length |
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| 151 | * the number of bytes to print |
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| 152 | * |
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| 153 | * @return ... |
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| 154 | */ |
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| 155 | public static final String dumpAsHex(byte[] byteBuffer, int length) { |
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| 156 | StringBuffer outputBuf = new StringBuffer(length * 4); |
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| 157 | |
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| 158 | int p = 0; |
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| 159 | int rows = length / 8; |
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| 160 | |
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| 161 | for (int i = 0; (i < rows) && (p < length); i++) { |
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| 162 | int ptemp = p; |
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| 163 | |
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| 164 | for (int j = 0; j < 8; j++) { |
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| 165 | String hexVal = Integer.toHexString(byteBuffer[ptemp] & 0xff); |
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| 166 | |
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| 167 | if (hexVal.length() == 1) { |
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| 168 | hexVal = "0" + hexVal; //$NON-NLS-1$ |
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| 169 | } |
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| 170 | |
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| 171 | outputBuf.append(hexVal + " "); //$NON-NLS-1$ |
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| 172 | ptemp++; |
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| 173 | } |
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| 174 | |
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| 175 | outputBuf.append(" "); //$NON-NLS-1$ |
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| 176 | |
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| 177 | for (int j = 0; j < 8; j++) { |
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| 178 | int b = 0xff & byteBuffer[p]; |
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| 179 | |
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| 180 | if (b > 32 && b < 127) { |
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| 181 | outputBuf.append((char) b + " "); //$NON-NLS-1$ |
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| 182 | } else { |
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| 183 | outputBuf.append(". "); //$NON-NLS-1$ |
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| 184 | } |
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| 185 | |
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| 186 | p++; |
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| 187 | } |
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| 188 | |
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| 189 | outputBuf.append("\n"); //$NON-NLS-1$ |
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| 190 | } |
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| 191 | |
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| 192 | int n = 0; |
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| 193 | |
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| 194 | for (int i = p; i < length; i++) { |
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| 195 | String hexVal = Integer.toHexString(byteBuffer[i] & 0xff); |
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| 196 | |
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| 197 | if (hexVal.length() == 1) { |
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| 198 | hexVal = "0" + hexVal; //$NON-NLS-1$ |
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| 199 | } |
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| 200 | |
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| 201 | outputBuf.append(hexVal + " "); //$NON-NLS-1$ |
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| 202 | n++; |
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| 203 | } |
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| 204 | |
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| 205 | for (int i = n; i < 8; i++) { |
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| 206 | outputBuf.append(" "); //$NON-NLS-1$ |
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| 207 | } |
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| 208 | |
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| 209 | outputBuf.append(" "); //$NON-NLS-1$ |
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| 210 | |
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| 211 | for (int i = p; i < length; i++) { |
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| 212 | int b = 0xff & byteBuffer[i]; |
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| 213 | |
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| 214 | if (b > 32 && b < 127) { |
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| 215 | outputBuf.append((char) b + " "); //$NON-NLS-1$ |
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| 216 | } else { |
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| 217 | outputBuf.append(". "); //$NON-NLS-1$ |
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| 218 | } |
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| 219 | } |
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| 220 | |
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| 221 | outputBuf.append("\n"); //$NON-NLS-1$ |
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| 222 | |
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| 223 | return outputBuf.toString(); |
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| 224 | } |
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| 225 | |
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| 226 | private static boolean endsWith(byte[] dataFrom, String suffix) { |
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| 227 | for (int i = 1; i <= suffix.length(); i++) { |
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| 228 | int dfOffset = dataFrom.length - i; |
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| 229 | int suffixOffset = suffix.length() - i; |
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| 230 | if (dataFrom[dfOffset] != suffix.charAt(suffixOffset)) { |
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| 231 | return false; |
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| 232 | } |
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| 233 | } |
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| 234 | return true; |
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| 235 | } |
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| 236 | |
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| 237 | /** |
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| 238 | * Unfortunately, SJIS has 0x5c as a high byte in some of its double-byte |
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| 239 | * characters, so we need to escape it. |
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| 240 | * |
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| 241 | * @param origBytes |
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| 242 | * the original bytes in SJIS format |
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| 243 | * @param origString |
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| 244 | * the string that had .getBytes() called on it |
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| 245 | * @param offset |
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| 246 | * where to start converting from |
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| 247 | * @param length |
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| 248 | * how many characters to convert. |
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| 249 | * |
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| 250 | * @return byte[] with 0x5c escaped |
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| 251 | */ |
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| 252 | public static byte[] escapeEasternUnicodeByteStream(byte[] origBytes, |
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| 253 | String origString, int offset, int length) { |
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| 254 | if ((origBytes == null) || (origBytes.length == 0)) { |
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| 255 | return origBytes; |
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| 256 | } |
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| 257 | |
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| 258 | int bytesLen = origBytes.length; |
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| 259 | int bufIndex = 0; |
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| 260 | int strIndex = 0; |
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| 261 | |
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| 262 | ByteArrayOutputStream bytesOut = new ByteArrayOutputStream(bytesLen); |
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| 263 | |
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| 264 | while (true) { |
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| 265 | if (origString.charAt(strIndex) == '\\') { |
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| 266 | // write it out as-is |
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| 267 | bytesOut.write(origBytes[bufIndex++]); |
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| 268 | |
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| 269 | // bytesOut.write(origBytes[bufIndex++]); |
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| 270 | } else { |
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| 271 | // Grab the first byte |
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| 272 | int loByte = origBytes[bufIndex]; |
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| 273 | |
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| 274 | if (loByte < 0) { |
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| 275 | loByte += 256; // adjust for signedness/wrap-around |
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| 276 | } |
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| 277 | |
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| 278 | // We always write the first byte |
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| 279 | bytesOut.write(loByte); |
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| 280 | |
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| 281 | // |
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| 282 | // The codepage characters in question exist between |
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| 283 | // 0x81-0x9F and 0xE0-0xFC... |
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| 284 | // |
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| 285 | // See: |
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| 286 | // |
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| 287 | // http://www.microsoft.com/GLOBALDEV/Reference/dbcs/932.htm |
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| 288 | // |
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| 289 | // Problematic characters in GBK |
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| 290 | // |
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| 291 | // U+905C : CJK UNIFIED IDEOGRAPH |
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| 292 | // |
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| 293 | // Problematic characters in Big5 |
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| 294 | // |
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| 295 | // B9F0 = U+5C62 : CJK UNIFIED IDEOGRAPH |
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| 296 | // |
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| 297 | if (loByte >= 0x80) { |
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| 298 | if (bufIndex < (bytesLen - 1)) { |
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| 299 | int hiByte = origBytes[bufIndex + 1]; |
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| 300 | |
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| 301 | if (hiByte < 0) { |
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| 302 | hiByte += 256; // adjust for signedness/wrap-around |
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| 303 | } |
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| 304 | |
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| 305 | // write the high byte here, and increment the index |
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| 306 | // for the high byte |
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| 307 | bytesOut.write(hiByte); |
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| 308 | bufIndex++; |
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| 309 | |
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| 310 | // escape 0x5c if necessary |
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| 311 | if (hiByte == 0x5C) { |
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| 312 | bytesOut.write(hiByte); |
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| 313 | } |
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| 314 | } |
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| 315 | } else if (loByte == 0x5c) { |
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| 316 | if (bufIndex < (bytesLen - 1)) { |
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| 317 | int hiByte = origBytes[bufIndex + 1]; |
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| 318 | |
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| 319 | if (hiByte < 0) { |
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| 320 | hiByte += 256; // adjust for signedness/wrap-around |
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| 321 | } |
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| 322 | |
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| 323 | if (hiByte == 0x62) { |
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| 324 | // we need to escape the 0x5c |
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| 325 | bytesOut.write(0x5c); |
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| 326 | bytesOut.write(0x62); |
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| 327 | bufIndex++; |
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| 328 | } |
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| 329 | } |
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| 330 | } |
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| 331 | |
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| 332 | bufIndex++; |
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| 333 | } |
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| 334 | |
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| 335 | if (bufIndex >= bytesLen) { |
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| 336 | // we're done |
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| 337 | break; |
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| 338 | } |
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| 339 | |
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| 340 | strIndex++; |
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| 341 | } |
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| 342 | |
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| 343 | return bytesOut.toByteArray(); |
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| 344 | } |
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| 345 | |
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| 346 | /** |
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| 347 | * Returns the first non whitespace char, converted to upper case |
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| 348 | * |
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| 349 | * @param searchIn |
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| 350 | * the string to search in |
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| 351 | * |
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| 352 | * @return the first non-whitespace character, upper cased. |
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| 353 | */ |
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| 354 | public static char firstNonWsCharUc(String searchIn) { |
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| 355 | return firstNonWsCharUc(searchIn, 0); |
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| 356 | } |
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| 357 | |
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| 358 | public static char firstNonWsCharUc(String searchIn, int startAt) { |
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| 359 | if (searchIn == null) { |
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| 360 | return 0; |
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| 361 | } |
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| 362 | |
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| 363 | int length = searchIn.length(); |
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| 364 | |
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| 365 | for (int i = startAt; i < length; i++) { |
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| 366 | char c = searchIn.charAt(i); |
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| 367 | |
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| 368 | if (!Character.isWhitespace(c)) { |
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| 369 | return Character.toUpperCase(c); |
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| 370 | } |
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| 371 | } |
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| 372 | |
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| 373 | return 0; |
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| 374 | } |
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| 375 | |
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| 376 | public static char firstAlphaCharUc(String searchIn, int startAt) { |
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| 377 | if (searchIn == null) { |
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| 378 | return 0; |
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| 379 | } |
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| 380 | |
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| 381 | int length = searchIn.length(); |
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| 382 | |
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| 383 | for (int i = startAt; i < length; i++) { |
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| 384 | char c = searchIn.charAt(i); |
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| 385 | |
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| 386 | if (Character.isLetter(c)) { |
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| 387 | return Character.toUpperCase(c); |
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| 388 | } |
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| 389 | } |
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| 390 | |
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| 391 | return 0; |
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| 392 | } |
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| 393 | |
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| 394 | /** |
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| 395 | * Adds '+' to decimal numbers that are positive (MySQL doesn't understand |
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| 396 | * them otherwise |
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| 397 | * |
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| 398 | * @param dString |
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| 399 | * The value as a string |
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| 400 | * |
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| 401 | * @return String the string with a '+' added (if needed) |
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| 402 | */ |
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| 403 | public static final String fixDecimalExponent(String dString) { |
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| 404 | int ePos = dString.indexOf("E"); //$NON-NLS-1$ |
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| 405 | |
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| 406 | if (ePos == -1) { |
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| 407 | ePos = dString.indexOf("e"); //$NON-NLS-1$ |
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| 408 | } |
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| 409 | |
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| 410 | if (ePos != -1) { |
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| 411 | if (dString.length() > (ePos + 1)) { |
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| 412 | char maybeMinusChar = dString.charAt(ePos + 1); |
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| 413 | |
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| 414 | if (maybeMinusChar != '-' && maybeMinusChar != '+') { |
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| 415 | StringBuffer buf = new StringBuffer(dString.length() + 1); |
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| 416 | buf.append(dString.substring(0, ePos + 1)); |
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| 417 | buf.append('+'); |
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| 418 | buf.append(dString.substring(ePos + 1, dString.length())); |
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| 419 | dString = buf.toString(); |
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| 420 | } |
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| 421 | } |
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| 422 | } |
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| 423 | |
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| 424 | return dString; |
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| 425 | } |
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| 426 | |
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| 427 | public static final byte[] getBytes(char[] c, |
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| 428 | SingleByteCharsetConverter converter, String encoding, |
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| 429 | String serverEncoding, boolean parserKnowsUnicode, ExceptionInterceptor exceptionInterceptor) |
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| 430 | throws SQLException { |
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| 431 | try { |
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| 432 | byte[] b = null; |
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| 433 | |
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| 434 | if (converter != null) { |
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| 435 | b = converter.toBytes(c); |
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| 436 | } else if (encoding == null) { |
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| 437 | b = new String(c).getBytes(); |
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| 438 | } else { |
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| 439 | String s = new String(c); |
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| 440 | |
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| 441 | b = s.getBytes(encoding); |
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| 442 | |
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| 443 | if (!parserKnowsUnicode && (encoding.equalsIgnoreCase("SJIS") //$NON-NLS-1$ |
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| 444 | || encoding.equalsIgnoreCase("BIG5") //$NON-NLS-1$ |
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| 445 | || encoding.equalsIgnoreCase("GBK"))) { //$NON-NLS-1$ |
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| 446 | |
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| 447 | if (!encoding.equalsIgnoreCase(serverEncoding)) { |
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| 448 | b = escapeEasternUnicodeByteStream(b, s, 0, s.length()); |
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| 449 | } |
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| 450 | } |
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| 451 | } |
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| 452 | |
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| 453 | return b; |
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| 454 | } catch (UnsupportedEncodingException uee) { |
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| 455 | throw SQLError.createSQLException(Messages.getString("StringUtils.5") //$NON-NLS-1$ |
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| 456 | + encoding + Messages.getString("StringUtils.6"), |
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| 457 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, exceptionInterceptor); //$NON-NLS-1$ |
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| 458 | } |
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| 459 | } |
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| 460 | |
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| 461 | public static final byte[] getBytes(char[] c, |
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| 462 | SingleByteCharsetConverter converter, String encoding, |
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| 463 | String serverEncoding, int offset, int length, |
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| 464 | boolean parserKnowsUnicode, ExceptionInterceptor exceptionInterceptor) throws SQLException { |
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| 465 | try { |
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| 466 | byte[] b = null; |
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| 467 | |
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| 468 | if (converter != null) { |
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| 469 | b = converter.toBytes(c, offset, length); |
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| 470 | } else if (encoding == null) { |
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| 471 | byte[] temp = new String(c, offset, length).getBytes(); |
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| 472 | |
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| 473 | length = temp.length; |
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| 474 | |
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| 475 | b = new byte[length]; |
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| 476 | System.arraycopy(temp, 0, b, 0, length); |
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| 477 | } else { |
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| 478 | String s = new String(c, offset, length); |
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| 479 | |
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| 480 | byte[] temp = s.getBytes(encoding); |
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| 481 | |
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| 482 | length = temp.length; |
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| 483 | |
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| 484 | b = new byte[length]; |
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| 485 | System.arraycopy(temp, 0, b, 0, length); |
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| 486 | |
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| 487 | if (!parserKnowsUnicode && (encoding.equalsIgnoreCase("SJIS") //$NON-NLS-1$ |
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| 488 | || encoding.equalsIgnoreCase("BIG5") //$NON-NLS-1$ |
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| 489 | || encoding.equalsIgnoreCase("GBK"))) { //$NON-NLS-1$ |
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| 490 | |
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| 491 | if (!encoding.equalsIgnoreCase(serverEncoding)) { |
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| 492 | b = escapeEasternUnicodeByteStream(b, s, offset, length); |
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| 493 | } |
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| 494 | } |
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| 495 | } |
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| 496 | |
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| 497 | return b; |
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| 498 | } catch (UnsupportedEncodingException uee) { |
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| 499 | throw SQLError.createSQLException(Messages.getString("StringUtils.10") //$NON-NLS-1$ |
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| 500 | + encoding + Messages.getString("StringUtils.11"), |
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| 501 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, exceptionInterceptor); //$NON-NLS-1$ |
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| 502 | } |
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| 503 | } |
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| 504 | |
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| 505 | public static final byte[] getBytes(char[] c, String encoding, |
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| 506 | String serverEncoding, boolean parserKnowsUnicode, |
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| 507 | MySQLConnection conn, ExceptionInterceptor exceptionInterceptor) |
---|
| 508 | throws SQLException { |
---|
| 509 | try { |
---|
| 510 | |
---|
| 511 | SingleByteCharsetConverter converter = null; |
---|
| 512 | |
---|
| 513 | if (conn != null) { |
---|
| 514 | converter = conn.getCharsetConverter(encoding); |
---|
| 515 | } else { |
---|
| 516 | converter = SingleByteCharsetConverter.getInstance(encoding, null); |
---|
| 517 | } |
---|
| 518 | |
---|
| 519 | return getBytes(c, converter, encoding, serverEncoding, |
---|
| 520 | parserKnowsUnicode, exceptionInterceptor); |
---|
| 521 | } catch (UnsupportedEncodingException uee) { |
---|
| 522 | throw SQLError.createSQLException(Messages.getString("StringUtils.0") //$NON-NLS-1$ |
---|
| 523 | + encoding + Messages.getString("StringUtils.1"), |
---|
| 524 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, exceptionInterceptor); //$NON-NLS-1$ |
---|
| 525 | } |
---|
| 526 | } |
---|
| 527 | |
---|
| 528 | /** |
---|
| 529 | * Returns the byte[] representation of the given string (re)using the given |
---|
| 530 | * charset converter, and the given encoding. |
---|
| 531 | * |
---|
| 532 | * @param s |
---|
| 533 | * the string to convert |
---|
| 534 | * @param converter |
---|
| 535 | * the converter to reuse |
---|
| 536 | * @param encoding |
---|
| 537 | * the character encoding to use |
---|
| 538 | * @param serverEncoding |
---|
| 539 | * DOCUMENT ME! |
---|
| 540 | * @param parserKnowsUnicode |
---|
| 541 | * DOCUMENT ME! |
---|
| 542 | * |
---|
| 543 | * @return byte[] representation of the string |
---|
| 544 | * |
---|
| 545 | * @throws SQLException |
---|
| 546 | * if an encoding unsupported by the JVM is supplied. |
---|
| 547 | */ |
---|
| 548 | public static final byte[] getBytes(String s, |
---|
| 549 | SingleByteCharsetConverter converter, String encoding, |
---|
| 550 | String serverEncoding, boolean parserKnowsUnicode, ExceptionInterceptor exceptionInterceptor) |
---|
| 551 | throws SQLException { |
---|
| 552 | try { |
---|
| 553 | byte[] b = null; |
---|
| 554 | |
---|
| 555 | if (converter != null) { |
---|
| 556 | b = converter.toBytes(s); |
---|
| 557 | } else if (encoding == null) { |
---|
| 558 | b = s.getBytes(); |
---|
| 559 | } else { |
---|
| 560 | b = s.getBytes(encoding); |
---|
| 561 | |
---|
| 562 | if (!parserKnowsUnicode && (encoding.equalsIgnoreCase("SJIS") //$NON-NLS-1$ |
---|
| 563 | || encoding.equalsIgnoreCase("BIG5") //$NON-NLS-1$ |
---|
| 564 | || encoding.equalsIgnoreCase("GBK"))) { //$NON-NLS-1$ |
---|
| 565 | |
---|
| 566 | if (!encoding.equalsIgnoreCase(serverEncoding)) { |
---|
| 567 | b = escapeEasternUnicodeByteStream(b, s, 0, s.length()); |
---|
| 568 | } |
---|
| 569 | } |
---|
| 570 | } |
---|
| 571 | |
---|
| 572 | return b; |
---|
| 573 | } catch (UnsupportedEncodingException uee) { |
---|
| 574 | throw SQLError.createSQLException(Messages.getString("StringUtils.5") //$NON-NLS-1$ |
---|
| 575 | + encoding + Messages.getString("StringUtils.6"), |
---|
| 576 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, exceptionInterceptor); //$NON-NLS-1$ |
---|
| 577 | } |
---|
| 578 | } |
---|
| 579 | |
---|
| 580 | public static final byte[] getBytesWrapped(String s, char beginWrap, char endWrap, |
---|
| 581 | SingleByteCharsetConverter converter, String encoding, |
---|
| 582 | String serverEncoding, boolean parserKnowsUnicode, ExceptionInterceptor exceptionInterceptor) |
---|
| 583 | throws SQLException { |
---|
| 584 | try { |
---|
| 585 | byte[] b = null; |
---|
| 586 | |
---|
| 587 | if (converter != null) { |
---|
| 588 | b = converter.toBytesWrapped(s, beginWrap, endWrap); |
---|
| 589 | } else if (encoding == null) { |
---|
| 590 | StringBuffer buf = new StringBuffer(s.length() + 2); |
---|
| 591 | buf.append(beginWrap); |
---|
| 592 | buf.append(s); |
---|
| 593 | buf.append(endWrap); |
---|
| 594 | |
---|
| 595 | b = buf.toString().getBytes(); |
---|
| 596 | } else { |
---|
| 597 | StringBuffer buf = new StringBuffer(s.length() + 2); |
---|
| 598 | buf.append(beginWrap); |
---|
| 599 | buf.append(s); |
---|
| 600 | buf.append(endWrap); |
---|
| 601 | |
---|
| 602 | s = buf.toString(); |
---|
| 603 | b = s.getBytes(encoding); |
---|
| 604 | |
---|
| 605 | if (!parserKnowsUnicode && (encoding.equalsIgnoreCase("SJIS") //$NON-NLS-1$ |
---|
| 606 | || encoding.equalsIgnoreCase("BIG5") //$NON-NLS-1$ |
---|
| 607 | || encoding.equalsIgnoreCase("GBK"))) { //$NON-NLS-1$ |
---|
| 608 | |
---|
| 609 | if (!encoding.equalsIgnoreCase(serverEncoding)) { |
---|
| 610 | b = escapeEasternUnicodeByteStream(b, s, 0, s.length()); |
---|
| 611 | } |
---|
| 612 | } |
---|
| 613 | } |
---|
| 614 | |
---|
| 615 | return b; |
---|
| 616 | } catch (UnsupportedEncodingException uee) { |
---|
| 617 | throw SQLError.createSQLException(Messages.getString("StringUtils.5") //$NON-NLS-1$ |
---|
| 618 | + encoding + Messages.getString("StringUtils.6"), |
---|
| 619 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, exceptionInterceptor); //$NON-NLS-1$ |
---|
| 620 | } |
---|
| 621 | } |
---|
| 622 | |
---|
| 623 | /** |
---|
| 624 | * DOCUMENT ME! |
---|
| 625 | * |
---|
| 626 | * @param s |
---|
| 627 | * DOCUMENT ME! |
---|
| 628 | * @param converter |
---|
| 629 | * DOCUMENT ME! |
---|
| 630 | * @param encoding |
---|
| 631 | * DOCUMENT ME! |
---|
| 632 | * @param serverEncoding |
---|
| 633 | * DOCUMENT ME! |
---|
| 634 | * @param offset |
---|
| 635 | * DOCUMENT ME! |
---|
| 636 | * @param length |
---|
| 637 | * DOCUMENT ME! |
---|
| 638 | * @param parserKnowsUnicode |
---|
| 639 | * DOCUMENT ME! |
---|
| 640 | * |
---|
| 641 | * @return DOCUMENT ME! |
---|
| 642 | * |
---|
| 643 | * @throws SQLException |
---|
| 644 | * DOCUMENT ME! |
---|
| 645 | */ |
---|
| 646 | public static final byte[] getBytes(String s, |
---|
| 647 | SingleByteCharsetConverter converter, String encoding, |
---|
| 648 | String serverEncoding, int offset, int length, |
---|
| 649 | boolean parserKnowsUnicode, ExceptionInterceptor exceptionInterceptor) throws SQLException { |
---|
| 650 | try { |
---|
| 651 | byte[] b = null; |
---|
| 652 | |
---|
| 653 | if (converter != null) { |
---|
| 654 | b = converter.toBytes(s, offset, length); |
---|
| 655 | } else if (encoding == null) { |
---|
| 656 | byte[] temp = s.substring(offset, offset + length).getBytes(); |
---|
| 657 | |
---|
| 658 | length = temp.length; |
---|
| 659 | |
---|
| 660 | b = new byte[length]; |
---|
| 661 | System.arraycopy(temp, 0, b, 0, length); |
---|
| 662 | } else { |
---|
| 663 | |
---|
| 664 | byte[] temp = s.substring(offset, offset + length) |
---|
| 665 | .getBytes(encoding); |
---|
| 666 | |
---|
| 667 | length = temp.length; |
---|
| 668 | |
---|
| 669 | b = new byte[length]; |
---|
| 670 | System.arraycopy(temp, 0, b, 0, length); |
---|
| 671 | |
---|
| 672 | if (!parserKnowsUnicode && (encoding.equalsIgnoreCase("SJIS") //$NON-NLS-1$ |
---|
| 673 | || encoding.equalsIgnoreCase("BIG5") //$NON-NLS-1$ |
---|
| 674 | || encoding.equalsIgnoreCase("GBK"))) { //$NON-NLS-1$ |
---|
| 675 | |
---|
| 676 | if (!encoding.equalsIgnoreCase(serverEncoding)) { |
---|
| 677 | b = escapeEasternUnicodeByteStream(b, s, offset, length); |
---|
| 678 | } |
---|
| 679 | } |
---|
| 680 | } |
---|
| 681 | |
---|
| 682 | return b; |
---|
| 683 | } catch (UnsupportedEncodingException uee) { |
---|
| 684 | throw SQLError.createSQLException(Messages.getString("StringUtils.10") //$NON-NLS-1$ |
---|
| 685 | + encoding + Messages.getString("StringUtils.11"), |
---|
| 686 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, exceptionInterceptor); //$NON-NLS-1$ |
---|
| 687 | } |
---|
| 688 | } |
---|
| 689 | |
---|
| 690 | /** |
---|
| 691 | * Returns the byte[] representation of the given string using given |
---|
| 692 | * encoding. |
---|
| 693 | * |
---|
| 694 | * @param s |
---|
| 695 | * the string to convert |
---|
| 696 | * @param encoding |
---|
| 697 | * the character encoding to use |
---|
| 698 | * @param parserKnowsUnicode |
---|
| 699 | * DOCUMENT ME! |
---|
| 700 | * |
---|
| 701 | * @return byte[] representation of the string |
---|
| 702 | * |
---|
| 703 | * @throws SQLException |
---|
| 704 | * if an encoding unsupported by the JVM is supplied. |
---|
| 705 | */ |
---|
| 706 | public static final byte[] getBytes(String s, String encoding, |
---|
| 707 | String serverEncoding, boolean parserKnowsUnicode, |
---|
| 708 | MySQLConnection conn, ExceptionInterceptor exceptionInterceptor) |
---|
| 709 | throws SQLException { |
---|
| 710 | try { |
---|
| 711 | SingleByteCharsetConverter converter = null; |
---|
| 712 | |
---|
| 713 | if (conn != null) { |
---|
| 714 | converter = conn.getCharsetConverter(encoding); |
---|
| 715 | } else { |
---|
| 716 | converter = SingleByteCharsetConverter.getInstance(encoding, null); |
---|
| 717 | } |
---|
| 718 | |
---|
| 719 | return getBytes(s, converter, encoding, serverEncoding, |
---|
| 720 | parserKnowsUnicode, exceptionInterceptor); |
---|
| 721 | } catch (UnsupportedEncodingException uee) { |
---|
| 722 | throw SQLError.createSQLException(Messages.getString("StringUtils.0") //$NON-NLS-1$ |
---|
| 723 | + encoding + Messages.getString("StringUtils.1"), |
---|
| 724 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, exceptionInterceptor); //$NON-NLS-1$ |
---|
| 725 | } |
---|
| 726 | } |
---|
| 727 | |
---|
| 728 | public static int getInt(byte[] buf, int offset, int endPos) throws NumberFormatException { |
---|
| 729 | int base = 10; |
---|
| 730 | |
---|
| 731 | int s = offset; |
---|
| 732 | |
---|
| 733 | /* Skip white space. */ |
---|
| 734 | while (Character.isWhitespace((char) buf[s]) && (s < endPos)) { |
---|
| 735 | ++s; |
---|
| 736 | } |
---|
| 737 | |
---|
| 738 | if (s == endPos) { |
---|
| 739 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 740 | } |
---|
| 741 | |
---|
| 742 | /* Check for a sign. */ |
---|
| 743 | boolean negative = false; |
---|
| 744 | |
---|
| 745 | if ((char) buf[s] == '-') { |
---|
| 746 | negative = true; |
---|
| 747 | ++s; |
---|
| 748 | } else if ((char) buf[s] == '+') { |
---|
| 749 | ++s; |
---|
| 750 | } |
---|
| 751 | |
---|
| 752 | /* Save the pointer so we can check later if anything happened. */ |
---|
| 753 | int save = s; |
---|
| 754 | |
---|
| 755 | int cutoff = Integer.MAX_VALUE / base; |
---|
| 756 | int cutlim = (Integer.MAX_VALUE % base); |
---|
| 757 | |
---|
| 758 | if (negative) { |
---|
| 759 | cutlim++; |
---|
| 760 | } |
---|
| 761 | |
---|
| 762 | boolean overflow = false; |
---|
| 763 | |
---|
| 764 | int i = 0; |
---|
| 765 | |
---|
| 766 | for (; s < endPos; s++) { |
---|
| 767 | char c = (char) buf[s]; |
---|
| 768 | |
---|
| 769 | if (Character.isDigit(c)) { |
---|
| 770 | c -= '0'; |
---|
| 771 | } else if (Character.isLetter(c)) { |
---|
| 772 | c = (char) (Character.toUpperCase(c) - 'A' + 10); |
---|
| 773 | } else { |
---|
| 774 | break; |
---|
| 775 | } |
---|
| 776 | |
---|
| 777 | if (c >= base) { |
---|
| 778 | break; |
---|
| 779 | } |
---|
| 780 | |
---|
| 781 | /* Check for overflow. */ |
---|
| 782 | if ((i > cutoff) || ((i == cutoff) && (c > cutlim))) { |
---|
| 783 | overflow = true; |
---|
| 784 | } else { |
---|
| 785 | i *= base; |
---|
| 786 | i += c; |
---|
| 787 | } |
---|
| 788 | } |
---|
| 789 | |
---|
| 790 | if (s == save) { |
---|
| 791 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 792 | } |
---|
| 793 | |
---|
| 794 | if (overflow) { |
---|
| 795 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 796 | } |
---|
| 797 | |
---|
| 798 | /* Return the result of the appropriate sign. */ |
---|
| 799 | return (negative ? (-i) : i); |
---|
| 800 | } |
---|
| 801 | |
---|
| 802 | public static int getInt(byte[] buf) throws NumberFormatException { |
---|
| 803 | return getInt(buf, 0, buf.length); |
---|
| 804 | } |
---|
| 805 | |
---|
| 806 | public static long getLong(byte[] buf) throws NumberFormatException { |
---|
| 807 | return getLong(buf, 0, buf.length); |
---|
| 808 | } |
---|
| 809 | |
---|
| 810 | public static long getLong(byte[] buf, int offset, int endpos) throws NumberFormatException { |
---|
| 811 | int base = 10; |
---|
| 812 | |
---|
| 813 | int s = offset; |
---|
| 814 | |
---|
| 815 | /* Skip white space. */ |
---|
| 816 | while (Character.isWhitespace((char) buf[s]) && (s < endpos)) { |
---|
| 817 | ++s; |
---|
| 818 | } |
---|
| 819 | |
---|
| 820 | if (s == endpos) { |
---|
| 821 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 822 | } |
---|
| 823 | |
---|
| 824 | /* Check for a sign. */ |
---|
| 825 | boolean negative = false; |
---|
| 826 | |
---|
| 827 | if ((char) buf[s] == '-') { |
---|
| 828 | negative = true; |
---|
| 829 | ++s; |
---|
| 830 | } else if ((char) buf[s] == '+') { |
---|
| 831 | ++s; |
---|
| 832 | } |
---|
| 833 | |
---|
| 834 | /* Save the pointer so we can check later if anything happened. */ |
---|
| 835 | int save = s; |
---|
| 836 | |
---|
| 837 | long cutoff = Long.MAX_VALUE / base; |
---|
| 838 | long cutlim = (int) (Long.MAX_VALUE % base); |
---|
| 839 | |
---|
| 840 | if (negative) { |
---|
| 841 | cutlim++; |
---|
| 842 | } |
---|
| 843 | |
---|
| 844 | boolean overflow = false; |
---|
| 845 | long i = 0; |
---|
| 846 | |
---|
| 847 | for (; s < endpos; s++) { |
---|
| 848 | char c = (char) buf[s]; |
---|
| 849 | |
---|
| 850 | if (Character.isDigit(c)) { |
---|
| 851 | c -= '0'; |
---|
| 852 | } else if (Character.isLetter(c)) { |
---|
| 853 | c = (char) (Character.toUpperCase(c) - 'A' + 10); |
---|
| 854 | } else { |
---|
| 855 | break; |
---|
| 856 | } |
---|
| 857 | |
---|
| 858 | if (c >= base) { |
---|
| 859 | break; |
---|
| 860 | } |
---|
| 861 | |
---|
| 862 | /* Check for overflow. */ |
---|
| 863 | if ((i > cutoff) || ((i == cutoff) && (c > cutlim))) { |
---|
| 864 | overflow = true; |
---|
| 865 | } else { |
---|
| 866 | i *= base; |
---|
| 867 | i += c; |
---|
| 868 | } |
---|
| 869 | } |
---|
| 870 | |
---|
| 871 | if (s == save) { |
---|
| 872 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 873 | } |
---|
| 874 | |
---|
| 875 | if (overflow) { |
---|
| 876 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 877 | } |
---|
| 878 | |
---|
| 879 | /* Return the result of the appropriate sign. */ |
---|
| 880 | return (negative ? (-i) : i); |
---|
| 881 | } |
---|
| 882 | |
---|
| 883 | public static short getShort(byte[] buf) throws NumberFormatException { |
---|
| 884 | short base = 10; |
---|
| 885 | |
---|
| 886 | int s = 0; |
---|
| 887 | |
---|
| 888 | /* Skip white space. */ |
---|
| 889 | while (Character.isWhitespace((char) buf[s]) && (s < buf.length)) { |
---|
| 890 | ++s; |
---|
| 891 | } |
---|
| 892 | |
---|
| 893 | if (s == buf.length) { |
---|
| 894 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 895 | } |
---|
| 896 | |
---|
| 897 | /* Check for a sign. */ |
---|
| 898 | boolean negative = false; |
---|
| 899 | |
---|
| 900 | if ((char) buf[s] == '-') { |
---|
| 901 | negative = true; |
---|
| 902 | ++s; |
---|
| 903 | } else if ((char) buf[s] == '+') { |
---|
| 904 | ++s; |
---|
| 905 | } |
---|
| 906 | |
---|
| 907 | /* Save the pointer so we can check later if anything happened. */ |
---|
| 908 | int save = s; |
---|
| 909 | |
---|
| 910 | short cutoff = (short) (Short.MAX_VALUE / base); |
---|
| 911 | short cutlim = (short) (Short.MAX_VALUE % base); |
---|
| 912 | |
---|
| 913 | if (negative) { |
---|
| 914 | cutlim++; |
---|
| 915 | } |
---|
| 916 | |
---|
| 917 | boolean overflow = false; |
---|
| 918 | short i = 0; |
---|
| 919 | |
---|
| 920 | for (; s < buf.length; s++) { |
---|
| 921 | char c = (char) buf[s]; |
---|
| 922 | |
---|
| 923 | if (Character.isDigit(c)) { |
---|
| 924 | c -= '0'; |
---|
| 925 | } else if (Character.isLetter(c)) { |
---|
| 926 | c = (char) (Character.toUpperCase(c) - 'A' + 10); |
---|
| 927 | } else { |
---|
| 928 | break; |
---|
| 929 | } |
---|
| 930 | |
---|
| 931 | if (c >= base) { |
---|
| 932 | break; |
---|
| 933 | } |
---|
| 934 | |
---|
| 935 | /* Check for overflow. */ |
---|
| 936 | if ((i > cutoff) || ((i == cutoff) && (c > cutlim))) { |
---|
| 937 | overflow = true; |
---|
| 938 | } else { |
---|
| 939 | i *= base; |
---|
| 940 | i += c; |
---|
| 941 | } |
---|
| 942 | } |
---|
| 943 | |
---|
| 944 | if (s == save) { |
---|
| 945 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 946 | } |
---|
| 947 | |
---|
| 948 | if (overflow) { |
---|
| 949 | throw new NumberFormatException(StringUtils.toString(buf)); |
---|
| 950 | } |
---|
| 951 | |
---|
| 952 | /* Return the result of the appropriate sign. */ |
---|
| 953 | return (negative ? (short) -i : (short) i); |
---|
| 954 | } |
---|
| 955 | |
---|
| 956 | public final static int indexOfIgnoreCase(int startingPosition, |
---|
| 957 | String searchIn, String searchFor) { |
---|
| 958 | if ((searchIn == null) || (searchFor == null) |
---|
| 959 | || startingPosition > searchIn.length()) { |
---|
| 960 | return -1; |
---|
| 961 | } |
---|
| 962 | |
---|
| 963 | int patternLength = searchFor.length(); |
---|
| 964 | int stringLength = searchIn.length(); |
---|
| 965 | int stopSearchingAt = stringLength - patternLength; |
---|
| 966 | |
---|
| 967 | if (patternLength == 0) { |
---|
| 968 | return -1; |
---|
| 969 | } |
---|
| 970 | |
---|
| 971 | // Brute force string pattern matching |
---|
| 972 | // Some locales don't follow upper-case rule, so need to check both |
---|
| 973 | char firstCharOfPatternUc = Character.toUpperCase(searchFor.charAt(0)); |
---|
| 974 | char firstCharOfPatternLc = Character.toLowerCase(searchFor.charAt(0)); |
---|
| 975 | |
---|
| 976 | // note, this also catches the case where patternLength > stringLength |
---|
| 977 | for (int i = startingPosition; i <= stopSearchingAt; i++) { |
---|
| 978 | if (isNotEqualIgnoreCharCase(searchIn, firstCharOfPatternUc, |
---|
| 979 | firstCharOfPatternLc, i)) { |
---|
| 980 | // find the first occurrence of the first character of searchFor in searchIn |
---|
| 981 | while (++i <= stopSearchingAt && (isNotEqualIgnoreCharCase(searchIn, firstCharOfPatternUc, |
---|
| 982 | firstCharOfPatternLc, i))); |
---|
| 983 | } |
---|
| 984 | |
---|
| 985 | if (i <= stopSearchingAt /* searchFor might be one character long! */) { |
---|
| 986 | // walk searchIn and searchFor in lock-step starting just past the first match,bail out if not |
---|
| 987 | // a match, or we've hit the end of searchFor... |
---|
| 988 | int j = i + 1; |
---|
| 989 | int end = j + patternLength - 1; |
---|
| 990 | for (int k = 1; j < end && (Character.toLowerCase(searchIn.charAt(j)) == |
---|
| 991 | Character.toLowerCase(searchFor.charAt(k)) || Character.toUpperCase(searchIn.charAt(j)) == |
---|
| 992 | Character.toUpperCase(searchFor.charAt(k))); j++, k++); |
---|
| 993 | |
---|
| 994 | if (j == end) { |
---|
| 995 | return i; |
---|
| 996 | } |
---|
| 997 | } |
---|
| 998 | } |
---|
| 999 | |
---|
| 1000 | return -1; |
---|
| 1001 | } |
---|
| 1002 | |
---|
| 1003 | private final static boolean isNotEqualIgnoreCharCase(String searchIn, |
---|
| 1004 | char firstCharOfPatternUc, char firstCharOfPatternLc, int i) { |
---|
| 1005 | return Character.toLowerCase(searchIn.charAt(i)) != firstCharOfPatternLc && Character.toUpperCase(searchIn.charAt(i)) != firstCharOfPatternUc; |
---|
| 1006 | } |
---|
| 1007 | |
---|
| 1008 | |
---|
| 1009 | /** |
---|
| 1010 | * DOCUMENT ME! |
---|
| 1011 | * |
---|
| 1012 | * @param searchIn |
---|
| 1013 | * DOCUMENT ME! |
---|
| 1014 | * @param searchFor |
---|
| 1015 | * DOCUMENT ME! |
---|
| 1016 | * |
---|
| 1017 | * @return DOCUMENT ME! |
---|
| 1018 | */ |
---|
| 1019 | public final static int indexOfIgnoreCase(String searchIn, String searchFor) { |
---|
| 1020 | return indexOfIgnoreCase(0, searchIn, searchFor); |
---|
| 1021 | } |
---|
| 1022 | |
---|
| 1023 | public static int indexOfIgnoreCaseRespectMarker(int startAt, String src, |
---|
| 1024 | String target, String marker, String markerCloses, |
---|
| 1025 | boolean allowBackslashEscapes) { |
---|
| 1026 | char contextMarker = Character.MIN_VALUE; |
---|
| 1027 | boolean escaped = false; |
---|
| 1028 | int markerTypeFound = 0; |
---|
| 1029 | int srcLength = src.length(); |
---|
| 1030 | int ind = 0; |
---|
| 1031 | |
---|
| 1032 | for (int i = startAt; i < srcLength; i++) { |
---|
| 1033 | char c = src.charAt(i); |
---|
| 1034 | |
---|
| 1035 | if (allowBackslashEscapes && c == '\\') { |
---|
| 1036 | escaped = !escaped; |
---|
| 1037 | } else if (contextMarker != Character.MIN_VALUE && c == markerCloses.charAt(markerTypeFound) && !escaped) { |
---|
| 1038 | contextMarker = Character.MIN_VALUE; |
---|
| 1039 | } else if ((ind = marker.indexOf(c)) != -1 && !escaped |
---|
| 1040 | && contextMarker == Character.MIN_VALUE) { |
---|
| 1041 | markerTypeFound = ind; |
---|
| 1042 | contextMarker = c; |
---|
| 1043 | } else if ((Character.toUpperCase(c) == Character.toUpperCase(target.charAt(0)) || |
---|
| 1044 | Character.toLowerCase(c) == Character.toLowerCase(target.charAt(0))) && !escaped |
---|
| 1045 | && contextMarker == Character.MIN_VALUE) { |
---|
| 1046 | if (startsWithIgnoreCase(src, i, target)) |
---|
| 1047 | return i; |
---|
| 1048 | } |
---|
| 1049 | } |
---|
| 1050 | |
---|
| 1051 | return -1; |
---|
| 1052 | |
---|
| 1053 | } |
---|
| 1054 | |
---|
| 1055 | public static int indexOfIgnoreCaseRespectQuotes(int startAt, String src, |
---|
| 1056 | String target, char quoteChar, boolean allowBackslashEscapes) { |
---|
| 1057 | char contextMarker = Character.MIN_VALUE; |
---|
| 1058 | boolean escaped = false; |
---|
| 1059 | |
---|
| 1060 | int srcLength = src.length(); |
---|
| 1061 | |
---|
| 1062 | for (int i = startAt; i < srcLength; i++) { |
---|
| 1063 | char c = src.charAt(i); |
---|
| 1064 | |
---|
| 1065 | if (allowBackslashEscapes && c == '\\') { |
---|
| 1066 | escaped = !escaped; |
---|
| 1067 | } else if (c == contextMarker && !escaped) { |
---|
| 1068 | contextMarker = Character.MIN_VALUE; |
---|
| 1069 | } else if (c == quoteChar && !escaped |
---|
| 1070 | && contextMarker == Character.MIN_VALUE) { |
---|
| 1071 | contextMarker = c; |
---|
| 1072 | // This test looks complex, but remember that in certain locales, upper case |
---|
| 1073 | // of two different codepoints coverts to same codepoint, and vice-versa. |
---|
| 1074 | } else if ((Character.toUpperCase(c) == Character.toUpperCase(target.charAt(0)) || |
---|
| 1075 | Character.toLowerCase(c) == Character.toLowerCase(target.charAt(0))) && !escaped |
---|
| 1076 | && contextMarker == Character.MIN_VALUE) { |
---|
| 1077 | if (startsWithIgnoreCase(src, i, target)) |
---|
| 1078 | return i; |
---|
| 1079 | } |
---|
| 1080 | } |
---|
| 1081 | |
---|
| 1082 | return -1; |
---|
| 1083 | |
---|
| 1084 | } |
---|
| 1085 | |
---|
| 1086 | /** |
---|
| 1087 | * Splits stringToSplit into a list, using the given delimitter |
---|
| 1088 | * |
---|
| 1089 | * @param stringToSplit |
---|
| 1090 | * the string to split |
---|
| 1091 | * @param delimitter |
---|
| 1092 | * the string to split on |
---|
| 1093 | * @param trim |
---|
| 1094 | * should the split strings be whitespace trimmed? |
---|
| 1095 | * |
---|
| 1096 | * @return the list of strings, split by delimitter |
---|
| 1097 | * |
---|
| 1098 | * @throws IllegalArgumentException |
---|
| 1099 | * DOCUMENT ME! |
---|
| 1100 | */ |
---|
| 1101 | public static final List<String> split(String stringToSplit, String delimitter, |
---|
| 1102 | boolean trim) { |
---|
| 1103 | if (stringToSplit == null) { |
---|
| 1104 | return new ArrayList<String>(); |
---|
| 1105 | } |
---|
| 1106 | |
---|
| 1107 | if (delimitter == null) { |
---|
| 1108 | throw new IllegalArgumentException(); |
---|
| 1109 | } |
---|
| 1110 | |
---|
| 1111 | StringTokenizer tokenizer = new StringTokenizer(stringToSplit, |
---|
| 1112 | delimitter, false); |
---|
| 1113 | |
---|
| 1114 | List<String> splitTokens = new ArrayList<String>(tokenizer.countTokens()); |
---|
| 1115 | |
---|
| 1116 | while (tokenizer.hasMoreTokens()) { |
---|
| 1117 | String token = tokenizer.nextToken(); |
---|
| 1118 | |
---|
| 1119 | if (trim) { |
---|
| 1120 | token = token.trim(); |
---|
| 1121 | } |
---|
| 1122 | |
---|
| 1123 | splitTokens.add(token); |
---|
| 1124 | } |
---|
| 1125 | |
---|
| 1126 | return splitTokens; |
---|
| 1127 | } |
---|
| 1128 | |
---|
| 1129 | /** |
---|
| 1130 | * Splits stringToSplit into a list, using the given delimitter |
---|
| 1131 | * |
---|
| 1132 | * @param stringToSplit |
---|
| 1133 | * the string to split |
---|
| 1134 | * @param delimitter |
---|
| 1135 | * the string to split on |
---|
| 1136 | * @param trim |
---|
| 1137 | * should the split strings be whitespace trimmed? |
---|
| 1138 | * |
---|
| 1139 | * @return the list of strings, split by delimiter |
---|
| 1140 | * |
---|
| 1141 | * @throws IllegalArgumentException |
---|
| 1142 | * DOCUMENT ME! |
---|
| 1143 | */ |
---|
| 1144 | public static final List<String> split(String stringToSplit, String delimiter, |
---|
| 1145 | String markers, String markerCloses, boolean trim) { |
---|
| 1146 | if (stringToSplit == null) { |
---|
| 1147 | return new ArrayList<String>(); |
---|
| 1148 | } |
---|
| 1149 | |
---|
| 1150 | if (delimiter == null) { |
---|
| 1151 | throw new IllegalArgumentException(); |
---|
| 1152 | } |
---|
| 1153 | |
---|
| 1154 | int delimPos = 0; |
---|
| 1155 | int currentPos = 0; |
---|
| 1156 | |
---|
| 1157 | List<String> splitTokens = new ArrayList<String>(); |
---|
| 1158 | |
---|
| 1159 | while ((delimPos = indexOfIgnoreCaseRespectMarker(currentPos, |
---|
| 1160 | stringToSplit, delimiter, markers, markerCloses, false)) != -1) { |
---|
| 1161 | String token = stringToSplit.substring(currentPos, delimPos); |
---|
| 1162 | |
---|
| 1163 | if (trim) { |
---|
| 1164 | token = token.trim(); |
---|
| 1165 | } |
---|
| 1166 | |
---|
| 1167 | splitTokens.add(token); |
---|
| 1168 | currentPos = delimPos + 1; |
---|
| 1169 | } |
---|
| 1170 | |
---|
| 1171 | if (currentPos < stringToSplit.length()) { |
---|
| 1172 | String token = stringToSplit.substring(currentPos); |
---|
| 1173 | |
---|
| 1174 | if (trim) { |
---|
| 1175 | token = token.trim(); |
---|
| 1176 | } |
---|
| 1177 | |
---|
| 1178 | splitTokens.add(token); |
---|
| 1179 | } |
---|
| 1180 | |
---|
| 1181 | return splitTokens; |
---|
| 1182 | } |
---|
| 1183 | |
---|
| 1184 | private static boolean startsWith(byte[] dataFrom, String chars) { |
---|
| 1185 | for (int i = 0; i < chars.length(); i++) { |
---|
| 1186 | if (dataFrom[i] != chars.charAt(i)) { |
---|
| 1187 | return false; |
---|
| 1188 | } |
---|
| 1189 | } |
---|
| 1190 | return true; |
---|
| 1191 | } |
---|
| 1192 | |
---|
| 1193 | /** |
---|
| 1194 | * Determines whether or not the string 'searchIn' contains the string |
---|
| 1195 | * 'searchFor', dis-regarding case starting at 'startAt' Shorthand for a |
---|
| 1196 | * String.regionMatch(...) |
---|
| 1197 | * |
---|
| 1198 | * @param searchIn |
---|
| 1199 | * the string to search in |
---|
| 1200 | * @param startAt |
---|
| 1201 | * the position to start at |
---|
| 1202 | * @param searchFor |
---|
| 1203 | * the string to search for |
---|
| 1204 | * |
---|
| 1205 | * @return whether searchIn starts with searchFor, ignoring case |
---|
| 1206 | */ |
---|
| 1207 | public static boolean startsWithIgnoreCase(String searchIn, int startAt, |
---|
| 1208 | String searchFor) { |
---|
| 1209 | return searchIn.regionMatches(true, startAt, searchFor, 0, searchFor |
---|
| 1210 | .length()); |
---|
| 1211 | } |
---|
| 1212 | |
---|
| 1213 | /** |
---|
| 1214 | * Determines whether or not the string 'searchIn' contains the string |
---|
| 1215 | * 'searchFor', dis-regarding case. Shorthand for a String.regionMatch(...) |
---|
| 1216 | * |
---|
| 1217 | * @param searchIn |
---|
| 1218 | * the string to search in |
---|
| 1219 | * @param searchFor |
---|
| 1220 | * the string to search for |
---|
| 1221 | * |
---|
| 1222 | * @return whether searchIn starts with searchFor, ignoring case |
---|
| 1223 | */ |
---|
| 1224 | public static boolean startsWithIgnoreCase(String searchIn, String searchFor) { |
---|
| 1225 | return startsWithIgnoreCase(searchIn, 0, searchFor); |
---|
| 1226 | } |
---|
| 1227 | |
---|
| 1228 | /** |
---|
| 1229 | * Determines whether or not the sting 'searchIn' contains the string |
---|
| 1230 | * 'searchFor', disregarding case,leading whitespace and non-alphanumeric |
---|
| 1231 | * characters. |
---|
| 1232 | * |
---|
| 1233 | * @param searchIn |
---|
| 1234 | * the string to search in |
---|
| 1235 | * @param searchFor |
---|
| 1236 | * the string to search for |
---|
| 1237 | * |
---|
| 1238 | * @return true if the string starts with 'searchFor' ignoring whitespace |
---|
| 1239 | */ |
---|
| 1240 | public static boolean startsWithIgnoreCaseAndNonAlphaNumeric( |
---|
| 1241 | String searchIn, String searchFor) { |
---|
| 1242 | if (searchIn == null) { |
---|
| 1243 | return searchFor == null; |
---|
| 1244 | } |
---|
| 1245 | |
---|
| 1246 | int beginPos = 0; |
---|
| 1247 | |
---|
| 1248 | int inLength = searchIn.length(); |
---|
| 1249 | |
---|
| 1250 | for (beginPos = 0; beginPos < inLength; beginPos++) { |
---|
| 1251 | char c = searchIn.charAt(beginPos); |
---|
| 1252 | |
---|
| 1253 | if (Character.isLetterOrDigit(c)) { |
---|
| 1254 | break; |
---|
| 1255 | } |
---|
| 1256 | } |
---|
| 1257 | |
---|
| 1258 | return startsWithIgnoreCase(searchIn, beginPos, searchFor); |
---|
| 1259 | } |
---|
| 1260 | |
---|
| 1261 | /** |
---|
| 1262 | * Determines whether or not the sting 'searchIn' contains the string |
---|
| 1263 | * 'searchFor', disregarding case and leading whitespace |
---|
| 1264 | * |
---|
| 1265 | * @param searchIn |
---|
| 1266 | * the string to search in |
---|
| 1267 | * @param searchFor |
---|
| 1268 | * the string to search for |
---|
| 1269 | * |
---|
| 1270 | * @return true if the string starts with 'searchFor' ignoring whitespace |
---|
| 1271 | */ |
---|
| 1272 | public static boolean startsWithIgnoreCaseAndWs(String searchIn, |
---|
| 1273 | String searchFor) { |
---|
| 1274 | return startsWithIgnoreCaseAndWs(searchIn, searchFor, 0); |
---|
| 1275 | } |
---|
| 1276 | |
---|
| 1277 | /** |
---|
| 1278 | * Determines whether or not the sting 'searchIn' contains the string |
---|
| 1279 | * 'searchFor', disregarding case and leading whitespace |
---|
| 1280 | * |
---|
| 1281 | * @param searchIn |
---|
| 1282 | * the string to search in |
---|
| 1283 | * @param searchFor |
---|
| 1284 | * the string to search for |
---|
| 1285 | * @param beginPos |
---|
| 1286 | * where to start searching |
---|
| 1287 | * |
---|
| 1288 | * @return true if the string starts with 'searchFor' ignoring whitespace |
---|
| 1289 | */ |
---|
| 1290 | |
---|
| 1291 | public static boolean startsWithIgnoreCaseAndWs(String searchIn, |
---|
| 1292 | String searchFor, int beginPos) { |
---|
| 1293 | if (searchIn == null) { |
---|
| 1294 | return searchFor == null; |
---|
| 1295 | } |
---|
| 1296 | |
---|
| 1297 | int inLength = searchIn.length(); |
---|
| 1298 | |
---|
| 1299 | for (; beginPos < inLength; beginPos++) { |
---|
| 1300 | if (!Character.isWhitespace(searchIn.charAt(beginPos))) { |
---|
| 1301 | break; |
---|
| 1302 | } |
---|
| 1303 | } |
---|
| 1304 | |
---|
| 1305 | return startsWithIgnoreCase(searchIn, beginPos, searchFor); |
---|
| 1306 | } |
---|
| 1307 | |
---|
| 1308 | /** |
---|
| 1309 | * @param bytesToStrip |
---|
| 1310 | * @param prefix |
---|
| 1311 | * @param suffix |
---|
| 1312 | * @return |
---|
| 1313 | */ |
---|
| 1314 | public static byte[] stripEnclosure(byte[] source, String prefix, |
---|
| 1315 | String suffix) { |
---|
| 1316 | if (source.length >= prefix.length() + suffix.length() |
---|
| 1317 | && startsWith(source, prefix) && endsWith(source, suffix)) { |
---|
| 1318 | |
---|
| 1319 | int totalToStrip = prefix.length() + suffix.length(); |
---|
| 1320 | int enclosedLength = source.length - totalToStrip; |
---|
| 1321 | byte[] enclosed = new byte[enclosedLength]; |
---|
| 1322 | |
---|
| 1323 | int startPos = prefix.length(); |
---|
| 1324 | int numToCopy = enclosed.length; |
---|
| 1325 | System.arraycopy(source, startPos, enclosed, 0, numToCopy); |
---|
| 1326 | |
---|
| 1327 | return enclosed; |
---|
| 1328 | } |
---|
| 1329 | return source; |
---|
| 1330 | } |
---|
| 1331 | |
---|
| 1332 | /** |
---|
| 1333 | * Returns the bytes as an ASCII String. |
---|
| 1334 | * |
---|
| 1335 | * @param buffer |
---|
| 1336 | * the bytes representing the string |
---|
| 1337 | * |
---|
| 1338 | * @return The ASCII String. |
---|
| 1339 | */ |
---|
| 1340 | public static final String toAsciiString(byte[] buffer) { |
---|
| 1341 | return toAsciiString(buffer, 0, buffer.length); |
---|
| 1342 | } |
---|
| 1343 | |
---|
| 1344 | /** |
---|
| 1345 | * Returns the bytes as an ASCII String. |
---|
| 1346 | * |
---|
| 1347 | * @param buffer |
---|
| 1348 | * the bytes to convert |
---|
| 1349 | * @param startPos |
---|
| 1350 | * the position to start converting |
---|
| 1351 | * @param length |
---|
| 1352 | * the length of the string to convert |
---|
| 1353 | * |
---|
| 1354 | * @return the ASCII string |
---|
| 1355 | */ |
---|
| 1356 | public static final String toAsciiString(byte[] buffer, int startPos, |
---|
| 1357 | int length) { |
---|
| 1358 | char[] charArray = new char[length]; |
---|
| 1359 | int readpoint = startPos; |
---|
| 1360 | |
---|
| 1361 | for (int i = 0; i < length; i++) { |
---|
| 1362 | charArray[i] = (char) buffer[readpoint]; |
---|
| 1363 | readpoint++; |
---|
| 1364 | } |
---|
| 1365 | |
---|
| 1366 | return new String(charArray); |
---|
| 1367 | } |
---|
| 1368 | |
---|
| 1369 | /** |
---|
| 1370 | * Compares searchIn against searchForWildcard with wildcards (heavily |
---|
| 1371 | * borrowed from strings/ctype-simple.c in the server sources) |
---|
| 1372 | * |
---|
| 1373 | * @param searchIn |
---|
| 1374 | * the string to search in |
---|
| 1375 | * @param searchForWildcard |
---|
| 1376 | * the string to search for, using the 'standard' SQL wildcard |
---|
| 1377 | * chars of '%' and '_' |
---|
| 1378 | * |
---|
| 1379 | * @return WILD_COMPARE_MATCH_NO_WILD if matched, WILD_COMPARE_NO_MATCH if |
---|
| 1380 | * not matched with wildcard, WILD_COMPARE_MATCH_WITH_WILD if |
---|
| 1381 | * matched with wildcard |
---|
| 1382 | */ |
---|
| 1383 | public static int wildCompare(String searchIn, String searchForWildcard) { |
---|
| 1384 | if ((searchIn == null) || (searchForWildcard == null)) { |
---|
| 1385 | return WILD_COMPARE_NO_MATCH; |
---|
| 1386 | } |
---|
| 1387 | |
---|
| 1388 | if (searchForWildcard.equals("%")) { //$NON-NLS-1$ |
---|
| 1389 | |
---|
| 1390 | return WILD_COMPARE_MATCH_WITH_WILD; |
---|
| 1391 | } |
---|
| 1392 | |
---|
| 1393 | int result = WILD_COMPARE_NO_MATCH; /* Not found, using wildcards */ |
---|
| 1394 | |
---|
| 1395 | char wildcardMany = '%'; |
---|
| 1396 | char wildcardOne = '_'; |
---|
| 1397 | char wildcardEscape = '\\'; |
---|
| 1398 | |
---|
| 1399 | int searchForPos = 0; |
---|
| 1400 | int searchForEnd = searchForWildcard.length(); |
---|
| 1401 | |
---|
| 1402 | int searchInPos = 0; |
---|
| 1403 | int searchInEnd = searchIn.length(); |
---|
| 1404 | |
---|
| 1405 | while (searchForPos != searchForEnd) { |
---|
| 1406 | char wildstrChar = searchForWildcard.charAt(searchForPos); |
---|
| 1407 | |
---|
| 1408 | while ((searchForWildcard.charAt(searchForPos) != wildcardMany) |
---|
| 1409 | && (wildstrChar != wildcardOne)) { |
---|
| 1410 | if ((searchForWildcard.charAt(searchForPos) == wildcardEscape) |
---|
| 1411 | && ((searchForPos + 1) != searchForEnd)) { |
---|
| 1412 | searchForPos++; |
---|
| 1413 | } |
---|
| 1414 | |
---|
| 1415 | if ((searchInPos == searchInEnd) |
---|
| 1416 | || (Character.toUpperCase(searchForWildcard |
---|
| 1417 | .charAt(searchForPos++)) != Character |
---|
| 1418 | .toUpperCase(searchIn.charAt(searchInPos++)))) { |
---|
| 1419 | return WILD_COMPARE_MATCH_WITH_WILD; /* No match */ |
---|
| 1420 | } |
---|
| 1421 | |
---|
| 1422 | if (searchForPos == searchForEnd) { |
---|
| 1423 | return ((searchInPos != searchInEnd) ? WILD_COMPARE_MATCH_WITH_WILD |
---|
| 1424 | : WILD_COMPARE_MATCH_NO_WILD); /* |
---|
| 1425 | * Match if both are |
---|
| 1426 | * at end |
---|
| 1427 | */ |
---|
| 1428 | } |
---|
| 1429 | |
---|
| 1430 | result = WILD_COMPARE_MATCH_WITH_WILD; /* Found an anchor char */ |
---|
| 1431 | } |
---|
| 1432 | |
---|
| 1433 | if (searchForWildcard.charAt(searchForPos) == wildcardOne) { |
---|
| 1434 | do { |
---|
| 1435 | if (searchInPos == searchInEnd) { /* |
---|
| 1436 | * Skip one char if |
---|
| 1437 | * possible |
---|
| 1438 | */ |
---|
| 1439 | |
---|
| 1440 | return (result); |
---|
| 1441 | } |
---|
| 1442 | |
---|
| 1443 | searchInPos++; |
---|
| 1444 | } while ((++searchForPos < searchForEnd) |
---|
| 1445 | && (searchForWildcard.charAt(searchForPos) == wildcardOne)); |
---|
| 1446 | |
---|
| 1447 | if (searchForPos == searchForEnd) { |
---|
| 1448 | break; |
---|
| 1449 | } |
---|
| 1450 | } |
---|
| 1451 | |
---|
| 1452 | if (searchForWildcard.charAt(searchForPos) == wildcardMany) { /* |
---|
| 1453 | * Found |
---|
| 1454 | * w_many |
---|
| 1455 | */ |
---|
| 1456 | |
---|
| 1457 | char cmp; |
---|
| 1458 | |
---|
| 1459 | searchForPos++; |
---|
| 1460 | |
---|
| 1461 | /* Remove any '%' and '_' from the wild search string */ |
---|
| 1462 | for (; searchForPos != searchForEnd; searchForPos++) { |
---|
| 1463 | if (searchForWildcard.charAt(searchForPos) == wildcardMany) { |
---|
| 1464 | continue; |
---|
| 1465 | } |
---|
| 1466 | |
---|
| 1467 | if (searchForWildcard.charAt(searchForPos) == wildcardOne) { |
---|
| 1468 | if (searchInPos == searchInEnd) { |
---|
| 1469 | return (WILD_COMPARE_NO_MATCH); |
---|
| 1470 | } |
---|
| 1471 | |
---|
| 1472 | searchInPos++; |
---|
| 1473 | |
---|
| 1474 | continue; |
---|
| 1475 | } |
---|
| 1476 | |
---|
| 1477 | break; /* Not a wild character */ |
---|
| 1478 | } |
---|
| 1479 | |
---|
| 1480 | if (searchForPos == searchForEnd) { |
---|
| 1481 | return WILD_COMPARE_MATCH_NO_WILD; /* Ok if w_many is last */ |
---|
| 1482 | } |
---|
| 1483 | |
---|
| 1484 | if (searchInPos == searchInEnd) { |
---|
| 1485 | return WILD_COMPARE_NO_MATCH; |
---|
| 1486 | } |
---|
| 1487 | |
---|
| 1488 | if (((cmp = searchForWildcard.charAt(searchForPos)) == wildcardEscape) |
---|
| 1489 | && ((searchForPos + 1) != searchForEnd)) { |
---|
| 1490 | cmp = searchForWildcard.charAt(++searchForPos); |
---|
| 1491 | } |
---|
| 1492 | |
---|
| 1493 | searchForPos++; |
---|
| 1494 | |
---|
| 1495 | do { |
---|
| 1496 | while ((searchInPos != searchInEnd) |
---|
| 1497 | && (Character.toUpperCase(searchIn |
---|
| 1498 | .charAt(searchInPos)) != Character |
---|
| 1499 | .toUpperCase(cmp))) |
---|
| 1500 | searchInPos++; |
---|
| 1501 | |
---|
| 1502 | if (searchInPos++ == searchInEnd) { |
---|
| 1503 | return WILD_COMPARE_NO_MATCH; |
---|
| 1504 | } |
---|
| 1505 | |
---|
| 1506 | { |
---|
| 1507 | int tmp = wildCompare(searchIn, searchForWildcard); |
---|
| 1508 | |
---|
| 1509 | if (tmp <= 0) { |
---|
| 1510 | return (tmp); |
---|
| 1511 | } |
---|
| 1512 | } |
---|
| 1513 | } while ((searchInPos != searchInEnd) |
---|
| 1514 | && (searchForWildcard.charAt(0) != wildcardMany)); |
---|
| 1515 | |
---|
| 1516 | return WILD_COMPARE_NO_MATCH; |
---|
| 1517 | } |
---|
| 1518 | } |
---|
| 1519 | |
---|
| 1520 | return ((searchInPos != searchInEnd) ? WILD_COMPARE_MATCH_WITH_WILD |
---|
| 1521 | : WILD_COMPARE_MATCH_NO_WILD); |
---|
| 1522 | } |
---|
| 1523 | |
---|
| 1524 | static byte[] s2b(String s, MySQLConnection conn) throws SQLException { |
---|
| 1525 | if (s == null) { |
---|
| 1526 | return null; |
---|
| 1527 | } |
---|
| 1528 | |
---|
| 1529 | if ((conn != null) && conn.getUseUnicode()) { |
---|
| 1530 | try { |
---|
| 1531 | String encoding = conn.getEncoding(); |
---|
| 1532 | |
---|
| 1533 | if (encoding == null) { |
---|
| 1534 | return s.getBytes(); |
---|
| 1535 | } |
---|
| 1536 | |
---|
| 1537 | SingleByteCharsetConverter converter = conn |
---|
| 1538 | .getCharsetConverter(encoding); |
---|
| 1539 | |
---|
| 1540 | if (converter != null) { |
---|
| 1541 | return converter.toBytes(s); |
---|
| 1542 | } |
---|
| 1543 | |
---|
| 1544 | return s.getBytes(encoding); |
---|
| 1545 | } catch (java.io.UnsupportedEncodingException E) { |
---|
| 1546 | return s.getBytes(); |
---|
| 1547 | } |
---|
| 1548 | } |
---|
| 1549 | |
---|
| 1550 | return s.getBytes(); |
---|
| 1551 | } |
---|
| 1552 | |
---|
| 1553 | public static int lastIndexOf(byte[] s, char c) { |
---|
| 1554 | if (s == null) { |
---|
| 1555 | return -1; |
---|
| 1556 | } |
---|
| 1557 | |
---|
| 1558 | for (int i = s.length - 1; i >= 0; i--) { |
---|
| 1559 | if (s[i] == c) { |
---|
| 1560 | return i; |
---|
| 1561 | } |
---|
| 1562 | } |
---|
| 1563 | |
---|
| 1564 | return -1; |
---|
| 1565 | } |
---|
| 1566 | |
---|
| 1567 | public static int indexOf(byte[] s, char c) { |
---|
| 1568 | if (s == null) { |
---|
| 1569 | return -1; |
---|
| 1570 | } |
---|
| 1571 | |
---|
| 1572 | int length = s.length; |
---|
| 1573 | |
---|
| 1574 | for (int i = 0; i < length; i++) { |
---|
| 1575 | if (s[i] == c) { |
---|
| 1576 | return i; |
---|
| 1577 | } |
---|
| 1578 | } |
---|
| 1579 | |
---|
| 1580 | return -1; |
---|
| 1581 | } |
---|
| 1582 | |
---|
| 1583 | public static boolean isNullOrEmpty(String toTest) { |
---|
| 1584 | return (toTest == null || toTest.length() == 0); |
---|
| 1585 | } |
---|
| 1586 | |
---|
| 1587 | /** |
---|
| 1588 | * Returns the given string, with comments removed |
---|
| 1589 | * |
---|
| 1590 | * @param src |
---|
| 1591 | * the source string |
---|
| 1592 | * @param stringOpens |
---|
| 1593 | * characters which delimit the "open" of a string |
---|
| 1594 | * @param stringCloses |
---|
| 1595 | * characters which delimit the "close" of a string, in |
---|
| 1596 | * counterpart order to <code>stringOpens</code> |
---|
| 1597 | * @param slashStarComments |
---|
| 1598 | * strip slash-star type "C" style comments |
---|
| 1599 | * @param slashSlashComments |
---|
| 1600 | * strip slash-slash C++ style comments to end-of-line |
---|
| 1601 | * @param hashComments |
---|
| 1602 | * strip #-style comments to end-of-line |
---|
| 1603 | * @param dashDashComments |
---|
| 1604 | * strip "--" style comments to end-of-line |
---|
| 1605 | * @return the input string with all comment-delimited data removed |
---|
| 1606 | */ |
---|
| 1607 | public static String stripComments(String src, String stringOpens, |
---|
| 1608 | String stringCloses, boolean slashStarComments, |
---|
| 1609 | boolean slashSlashComments, boolean hashComments, |
---|
| 1610 | boolean dashDashComments) { |
---|
| 1611 | if (src == null) { |
---|
| 1612 | return null; |
---|
| 1613 | } |
---|
| 1614 | |
---|
| 1615 | StringBuffer buf = new StringBuffer(src.length()); |
---|
| 1616 | |
---|
| 1617 | // It's just more natural to deal with this as a stream |
---|
| 1618 | // when parsing..This code is currently only called when |
---|
| 1619 | // parsing the kind of metadata that developers are strongly |
---|
| 1620 | // recommended to cache anyways, so we're not worried |
---|
| 1621 | // about the _1_ extra object allocation if it cleans |
---|
| 1622 | // up the code |
---|
| 1623 | |
---|
| 1624 | StringReader sourceReader = new StringReader(src); |
---|
| 1625 | |
---|
| 1626 | int contextMarker = Character.MIN_VALUE; |
---|
| 1627 | boolean escaped = false; |
---|
| 1628 | int markerTypeFound = -1; |
---|
| 1629 | |
---|
| 1630 | int ind = 0; |
---|
| 1631 | |
---|
| 1632 | int currentChar = 0; |
---|
| 1633 | |
---|
| 1634 | try { |
---|
| 1635 | while ((currentChar = sourceReader.read()) != -1) { |
---|
| 1636 | |
---|
| 1637 | if (false && currentChar == '\\') { |
---|
| 1638 | escaped = !escaped; |
---|
| 1639 | } else if (markerTypeFound != -1 && currentChar == stringCloses.charAt(markerTypeFound) |
---|
| 1640 | && !escaped) { |
---|
| 1641 | contextMarker = Character.MIN_VALUE; |
---|
| 1642 | markerTypeFound = -1; |
---|
| 1643 | } else if ((ind = stringOpens.indexOf(currentChar)) != -1 |
---|
| 1644 | && !escaped && contextMarker == Character.MIN_VALUE) { |
---|
| 1645 | markerTypeFound = ind; |
---|
| 1646 | contextMarker = currentChar; |
---|
| 1647 | } |
---|
| 1648 | |
---|
| 1649 | if (contextMarker == Character.MIN_VALUE && currentChar == '/' |
---|
| 1650 | && (slashSlashComments || slashStarComments)) { |
---|
| 1651 | currentChar = sourceReader.read(); |
---|
| 1652 | if (currentChar == '*' && slashStarComments) { |
---|
| 1653 | int prevChar = 0; |
---|
| 1654 | while ((currentChar = sourceReader.read()) != '/' |
---|
| 1655 | || prevChar != '*') { |
---|
| 1656 | if (currentChar == '\r') { |
---|
| 1657 | |
---|
| 1658 | currentChar = sourceReader.read(); |
---|
| 1659 | if (currentChar == '\n') { |
---|
| 1660 | currentChar = sourceReader.read(); |
---|
| 1661 | } |
---|
| 1662 | } else { |
---|
| 1663 | if (currentChar == '\n') { |
---|
| 1664 | |
---|
| 1665 | currentChar = sourceReader.read(); |
---|
| 1666 | } |
---|
| 1667 | } |
---|
| 1668 | if (currentChar < 0) |
---|
| 1669 | break; |
---|
| 1670 | prevChar = currentChar; |
---|
| 1671 | } |
---|
| 1672 | continue; |
---|
| 1673 | } else if (currentChar == '/' && slashSlashComments) { |
---|
| 1674 | while ((currentChar = sourceReader.read()) != '\n' |
---|
| 1675 | && currentChar != '\r' && currentChar >= 0) |
---|
| 1676 | ; |
---|
| 1677 | } |
---|
| 1678 | } else if (contextMarker == Character.MIN_VALUE |
---|
| 1679 | && currentChar == '#' && hashComments) { |
---|
| 1680 | // Slurp up everything until the newline |
---|
| 1681 | while ((currentChar = sourceReader.read()) != '\n' |
---|
| 1682 | && currentChar != '\r' && currentChar >= 0) |
---|
| 1683 | ; |
---|
| 1684 | } else if (contextMarker == Character.MIN_VALUE |
---|
| 1685 | && currentChar == '-' && dashDashComments) { |
---|
| 1686 | currentChar = sourceReader.read(); |
---|
| 1687 | |
---|
| 1688 | if (currentChar == -1 || currentChar != '-') { |
---|
| 1689 | buf.append('-'); |
---|
| 1690 | |
---|
| 1691 | if (currentChar != -1) { |
---|
| 1692 | buf.append(currentChar); |
---|
| 1693 | } |
---|
| 1694 | |
---|
| 1695 | continue; |
---|
| 1696 | } |
---|
| 1697 | |
---|
| 1698 | // Slurp up everything until the newline |
---|
| 1699 | |
---|
| 1700 | while ((currentChar = sourceReader.read()) != '\n' |
---|
| 1701 | && currentChar != '\r' && currentChar >= 0) |
---|
| 1702 | ; |
---|
| 1703 | } |
---|
| 1704 | |
---|
| 1705 | if (currentChar != -1) { |
---|
| 1706 | buf.append((char) currentChar); |
---|
| 1707 | } |
---|
| 1708 | } |
---|
| 1709 | } catch (IOException ioEx) { |
---|
| 1710 | // we'll never see this from a StringReader |
---|
| 1711 | } |
---|
| 1712 | |
---|
| 1713 | return buf.toString(); |
---|
| 1714 | } |
---|
| 1715 | |
---|
| 1716 | /** |
---|
| 1717 | * Next two functions are to help DBMD check if |
---|
| 1718 | * the given string is in form of database.name and return it |
---|
| 1719 | * as "database";"name" with comments removed. |
---|
| 1720 | * If string is NULL or wildcard (%), returns null and exits. |
---|
| 1721 | * |
---|
| 1722 | * First, we sanitize... |
---|
| 1723 | * |
---|
| 1724 | * @param src |
---|
| 1725 | * the source string |
---|
| 1726 | * @return the input string with all comment-delimited data removed |
---|
| 1727 | */ |
---|
| 1728 | public static String sanitizeProcOrFuncName(String src) { |
---|
| 1729 | if ((src == null) || (src.equals("%"))) { |
---|
| 1730 | return null; |
---|
| 1731 | } |
---|
| 1732 | |
---|
| 1733 | return src; |
---|
| 1734 | } |
---|
| 1735 | |
---|
| 1736 | /** |
---|
| 1737 | * Next we check if there is anything to split. If so |
---|
| 1738 | * we return result in form of "database";"name" |
---|
| 1739 | * If string is NULL or wildcard (%), returns null and exits. |
---|
| 1740 | * |
---|
| 1741 | * @param src |
---|
| 1742 | * the source string |
---|
| 1743 | * @param cat |
---|
| 1744 | * Catalog, if available |
---|
| 1745 | * @param quotId |
---|
| 1746 | * quoteId as defined on server |
---|
| 1747 | * @param isNoBslashEscSet |
---|
| 1748 | * Is our connection in BackSlashEscape mode |
---|
| 1749 | * @return the input string with all comment-delimited data removed |
---|
| 1750 | */ |
---|
| 1751 | public static List<String> splitDBdotName(String src, String cat, String quotId, |
---|
| 1752 | boolean isNoBslashEscSet) { |
---|
| 1753 | if ((src == null) || (src.equals("%"))) { |
---|
| 1754 | return new ArrayList<String>(); |
---|
| 1755 | } |
---|
| 1756 | |
---|
| 1757 | boolean isQuoted = StringUtils.indexOfIgnoreCase(0,src, quotId) > -1; |
---|
| 1758 | |
---|
| 1759 | |
---|
| 1760 | String retval = src; |
---|
| 1761 | String tmpCat = cat; |
---|
| 1762 | //I.e., what if database is named `MyDatabase 1.0.0`... thus trueDotIndex |
---|
| 1763 | int trueDotIndex = -1; |
---|
| 1764 | if (!" ".equals(quotId)) { |
---|
| 1765 | //Presumably, if there is a database name attached and it contains dots, then it should |
---|
| 1766 | //be quoted so we first check for that |
---|
| 1767 | if (isQuoted) { |
---|
| 1768 | trueDotIndex = StringUtils.indexOfIgnoreCase(0, |
---|
| 1769 | retval, quotId + "." + quotId); |
---|
| 1770 | } else { |
---|
| 1771 | //NOT quoted, fetch first DOT |
---|
| 1772 | // ex: cStmt = this.conn.prepareCall("{call bug57022.procbug57022(?, ?)}"); |
---|
| 1773 | trueDotIndex = StringUtils.indexOfIgnoreCase(0, |
---|
| 1774 | retval, "."); |
---|
| 1775 | } |
---|
| 1776 | } else { |
---|
| 1777 | trueDotIndex = retval.indexOf("."); |
---|
| 1778 | } |
---|
| 1779 | |
---|
| 1780 | List<String> retTokens = new ArrayList<String>(2); |
---|
| 1781 | |
---|
| 1782 | if (trueDotIndex != -1) { |
---|
| 1783 | //There is a catalog attached |
---|
| 1784 | if (isQuoted) { |
---|
| 1785 | tmpCat = StringUtils.toString(StringUtils.stripEnclosure(retval.substring(0, trueDotIndex+1) |
---|
| 1786 | .getBytes(), quotId, quotId)); |
---|
| 1787 | if (StringUtils.startsWithIgnoreCaseAndWs(tmpCat, quotId)) { |
---|
| 1788 | tmpCat = tmpCat.substring(1, tmpCat.length() - 1); |
---|
| 1789 | } |
---|
| 1790 | |
---|
| 1791 | retval = retval.substring(trueDotIndex + 2); |
---|
| 1792 | retval = StringUtils.toString(StringUtils.stripEnclosure(retval |
---|
| 1793 | .getBytes(), quotId, quotId)); |
---|
| 1794 | } else { |
---|
| 1795 | //NOT quoted, adjust indexOf |
---|
| 1796 | tmpCat = retval.substring(0, trueDotIndex); |
---|
| 1797 | retval = retval.substring(trueDotIndex + 1); |
---|
| 1798 | } |
---|
| 1799 | } else { |
---|
| 1800 | //No catalog attached, strip retval and return |
---|
| 1801 | retval = StringUtils.toString(StringUtils.stripEnclosure(retval |
---|
| 1802 | .getBytes(), quotId, quotId)); |
---|
| 1803 | } |
---|
| 1804 | |
---|
| 1805 | retTokens.add(tmpCat); |
---|
| 1806 | retTokens.add(retval); |
---|
| 1807 | return retTokens; |
---|
| 1808 | } |
---|
| 1809 | |
---|
| 1810 | public static final boolean isEmptyOrWhitespaceOnly(String str) { |
---|
| 1811 | if (str == null || str.length() == 0) { |
---|
| 1812 | return true; |
---|
| 1813 | } |
---|
| 1814 | |
---|
| 1815 | int length = str.length(); |
---|
| 1816 | |
---|
| 1817 | for (int i = 0; i < length; i++) { |
---|
| 1818 | if (!Character.isWhitespace(str.charAt(i))) { |
---|
| 1819 | return false; |
---|
| 1820 | } |
---|
| 1821 | } |
---|
| 1822 | |
---|
| 1823 | return true; |
---|
| 1824 | } |
---|
| 1825 | |
---|
| 1826 | public static String escapeQuote(String src, String quotChar) { |
---|
| 1827 | if (src == null) { |
---|
| 1828 | return null; |
---|
| 1829 | } |
---|
| 1830 | |
---|
| 1831 | src = StringUtils.toString(stripEnclosure(src.getBytes(), quotChar, quotChar)); |
---|
| 1832 | |
---|
| 1833 | int lastNdx = src.indexOf(quotChar); |
---|
| 1834 | String tmpSrc; |
---|
| 1835 | String tmpRest; |
---|
| 1836 | |
---|
| 1837 | tmpSrc = src.substring(0, lastNdx); |
---|
| 1838 | tmpSrc = tmpSrc + quotChar + quotChar; |
---|
| 1839 | |
---|
| 1840 | tmpRest = src.substring(lastNdx+1, src.length()); |
---|
| 1841 | |
---|
| 1842 | lastNdx = tmpRest.indexOf(quotChar); |
---|
| 1843 | while (lastNdx > -1) { |
---|
| 1844 | |
---|
| 1845 | tmpSrc = tmpSrc + tmpRest.substring(0, lastNdx); |
---|
| 1846 | tmpSrc = tmpSrc + quotChar + quotChar; |
---|
| 1847 | tmpRest = tmpRest.substring(lastNdx+1, tmpRest.length()); |
---|
| 1848 | |
---|
| 1849 | lastNdx = tmpRest.indexOf(quotChar); |
---|
| 1850 | } |
---|
| 1851 | |
---|
| 1852 | tmpSrc = tmpSrc + tmpRest; |
---|
| 1853 | src = tmpSrc; |
---|
| 1854 | |
---|
| 1855 | return src; |
---|
| 1856 | } |
---|
| 1857 | |
---|
| 1858 | // The following methods all exist because of the Java bug |
---|
| 1859 | // |
---|
| 1860 | // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6790402 |
---|
| 1861 | // |
---|
| 1862 | // which has been observed by users and reported as MySQL Bug#61105 |
---|
| 1863 | // |
---|
| 1864 | // We can turn around and replace them with their java.lang.String |
---|
| 1865 | // equivalents if/when that bug is ever fixed. |
---|
| 1866 | |
---|
| 1867 | public static String toString(byte[] value, int offset, int length, |
---|
| 1868 | String encoding) throws UnsupportedEncodingException { |
---|
| 1869 | Charset cs = findCharset(encoding); |
---|
| 1870 | |
---|
| 1871 | return cs.decode(ByteBuffer.wrap(value, offset, length)).toString(); |
---|
| 1872 | } |
---|
| 1873 | |
---|
| 1874 | public static String toString(byte[] value, String encoding) |
---|
| 1875 | throws UnsupportedEncodingException { |
---|
| 1876 | Charset cs = findCharset(encoding); |
---|
| 1877 | |
---|
| 1878 | return cs.decode(ByteBuffer.wrap(value)).toString(); |
---|
| 1879 | } |
---|
| 1880 | |
---|
| 1881 | public static String toString(byte[] value, int offset, int length) { |
---|
| 1882 | try { |
---|
| 1883 | Charset cs = findCharset(platformEncoding); |
---|
| 1884 | |
---|
| 1885 | return cs.decode(ByteBuffer.wrap(value, offset, length)).toString(); |
---|
| 1886 | } catch (UnsupportedEncodingException e) { |
---|
| 1887 | // can't happen, emulating new String(byte[]) |
---|
| 1888 | } |
---|
| 1889 | |
---|
| 1890 | return null; |
---|
| 1891 | } |
---|
| 1892 | |
---|
| 1893 | public static String toString(byte[] value) { |
---|
| 1894 | try { |
---|
| 1895 | Charset cs = findCharset(platformEncoding); |
---|
| 1896 | |
---|
| 1897 | return cs.decode(ByteBuffer.wrap(value)).toString(); |
---|
| 1898 | } catch (UnsupportedEncodingException e) { |
---|
| 1899 | // can't happen, emulating new String(byte[]) |
---|
| 1900 | } |
---|
| 1901 | |
---|
| 1902 | return null; |
---|
| 1903 | } |
---|
| 1904 | |
---|
| 1905 | public static byte[] getBytes(String value, String encoding) |
---|
| 1906 | throws UnsupportedEncodingException { |
---|
| 1907 | Charset cs = findCharset(encoding); |
---|
| 1908 | |
---|
| 1909 | // can't simply .array() this to get the bytes |
---|
| 1910 | // especially with variable-length charsets the |
---|
| 1911 | // buffer is sometimes larger than the actual encoded data |
---|
| 1912 | ByteBuffer buf = cs.encode(value); |
---|
| 1913 | |
---|
| 1914 | int encodedLen = buf.limit(); |
---|
| 1915 | byte[] asBytes = new byte[encodedLen]; |
---|
| 1916 | buf.get(asBytes, 0, encodedLen); |
---|
| 1917 | |
---|
| 1918 | return asBytes; |
---|
| 1919 | } |
---|
| 1920 | |
---|
| 1921 | public static byte[] getBytes(String value) { |
---|
| 1922 | try { |
---|
| 1923 | Charset cs = findCharset(platformEncoding); |
---|
| 1924 | |
---|
| 1925 | ByteBuffer buf = cs.encode(value); |
---|
| 1926 | |
---|
| 1927 | int encodedLen = buf.limit(); |
---|
| 1928 | byte[] asBytes = new byte[encodedLen]; |
---|
| 1929 | buf.get(asBytes, 0, encodedLen); |
---|
| 1930 | |
---|
| 1931 | return asBytes; |
---|
| 1932 | } catch (UnsupportedEncodingException e) { |
---|
| 1933 | // can't happen, emulating new String(byte[]) |
---|
| 1934 | } |
---|
| 1935 | |
---|
| 1936 | return null; |
---|
| 1937 | } |
---|
| 1938 | |
---|
| 1939 | public static final boolean isValidIdChar(char c) { |
---|
| 1940 | return VALID_ID_CHARS.indexOf(c) != -1; |
---|
| 1941 | } |
---|
| 1942 | } |
---|