1 | /* |
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2 | Copyright (c) 2002, 2010, 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.jdbc2.optional; |
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27 | |
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28 | import java.io.InputStream; |
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29 | import java.io.Reader; |
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30 | import java.lang.reflect.InvocationHandler; |
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31 | import java.lang.reflect.InvocationTargetException; |
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32 | import java.lang.reflect.Method; |
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33 | import java.lang.reflect.Proxy; |
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34 | import java.sql.Array; |
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35 | import java.sql.Blob; |
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36 | import java.sql.Clob; |
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37 | import java.sql.Connection; |
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38 | import java.sql.NClob; |
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39 | import java.sql.PreparedStatement; |
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40 | import java.sql.RowId; |
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41 | import java.sql.SQLClientInfoException; |
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42 | import java.sql.SQLException; |
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43 | import java.sql.SQLXML; |
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44 | import java.sql.Statement; |
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45 | import java.util.HashMap; |
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46 | import java.util.List; |
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47 | import java.util.Map; |
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48 | import java.util.Properties; |
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49 | |
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50 | import javax.sql.StatementEvent; |
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51 | |
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52 | import com.mysql.jdbc.ConnectionImpl; |
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53 | import com.mysql.jdbc.SQLError; |
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54 | import com.mysql.jdbc.jdbc2.optional.ConnectionWrapper; |
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55 | import com.mysql.jdbc.jdbc2.optional.MysqlPooledConnection; |
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56 | |
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57 | /** |
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58 | */ |
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59 | public class JDBC4PreparedStatementWrapper extends PreparedStatementWrapper { |
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60 | |
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61 | public JDBC4PreparedStatementWrapper(ConnectionWrapper c, MysqlPooledConnection conn, |
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62 | PreparedStatement toWrap) { |
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63 | super(c, conn, toWrap); |
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64 | } |
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65 | |
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66 | public synchronized void close() throws SQLException { |
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67 | if (this.pooledConnection == null) { |
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68 | // no-op |
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69 | return; |
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70 | } |
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71 | |
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72 | MysqlPooledConnection con = this.pooledConnection; // we need this |
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73 | // later... |
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74 | |
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75 | try { |
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76 | super.close(); |
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77 | } finally { |
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78 | try { |
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79 | StatementEvent e = new StatementEvent(con, this); |
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80 | // todo: pull this all up into base classes when we support *only* JDK6 or newer |
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81 | if (con instanceof JDBC4MysqlPooledConnection) { |
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82 | ((JDBC4MysqlPooledConnection) con).fireStatementEvent(e); |
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83 | } else if (con instanceof JDBC4MysqlXAConnection) { |
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84 | ((JDBC4MysqlXAConnection) con).fireStatementEvent(e); |
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85 | } else if (con instanceof JDBC4SuspendableXAConnection) { |
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86 | ((JDBC4SuspendableXAConnection) con).fireStatementEvent(e); |
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87 | } |
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88 | } finally { |
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89 | this.unwrappedInterfaces = null; |
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90 | } |
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91 | } |
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92 | } |
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93 | |
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94 | public boolean isClosed() throws SQLException { |
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95 | try { |
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96 | if (this.wrappedStmt != null) { |
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97 | return this.wrappedStmt.isClosed(); |
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98 | } else { |
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99 | throw SQLError.createSQLException("Statement already closed", |
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100 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); |
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101 | } |
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102 | } catch (SQLException sqlEx) { |
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103 | checkAndFireConnectionError(sqlEx); |
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104 | } |
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105 | |
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106 | return false; // never get here - compiler can't tell |
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107 | } |
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108 | |
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109 | public void setPoolable(boolean poolable) throws SQLException { |
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110 | try { |
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111 | if (this.wrappedStmt != null) { |
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112 | this.wrappedStmt.setPoolable(poolable); |
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113 | } else { |
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114 | throw SQLError.createSQLException("Statement already closed", |
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115 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); |
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116 | } |
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117 | } catch (SQLException sqlEx) { |
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118 | checkAndFireConnectionError(sqlEx); |
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119 | } |
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120 | } |
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121 | |
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122 | public boolean isPoolable() throws SQLException { |
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123 | try { |
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124 | if (this.wrappedStmt != null) { |
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125 | return this.wrappedStmt.isPoolable(); |
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126 | } else { |
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127 | throw SQLError.createSQLException("Statement already closed", |
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128 | SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); |
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129 | } |
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130 | } catch (SQLException sqlEx) { |
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131 | checkAndFireConnectionError(sqlEx); |
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132 | } |
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133 | |
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134 | return false; // never get here - compiler can't tell |
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135 | } |
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136 | |
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137 | public void setRowId(int parameterIndex, RowId x) throws SQLException { |
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138 | try { |
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139 | if (this.wrappedStmt != null) { |
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140 | ((PreparedStatement) this.wrappedStmt).setRowId(parameterIndex, |
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141 | x); |
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142 | } else { |
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143 | throw SQLError.createSQLException( |
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144 | "No operations allowed after statement closed", |
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145 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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146 | } |
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147 | } catch (SQLException sqlEx) { |
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148 | checkAndFireConnectionError(sqlEx); |
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149 | } |
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150 | } |
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151 | |
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152 | public void setNClob(int parameterIndex, NClob value) throws SQLException { |
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153 | try { |
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154 | if (this.wrappedStmt != null) { |
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155 | ((PreparedStatement) this.wrappedStmt).setNClob(parameterIndex, |
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156 | value); |
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157 | } else { |
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158 | throw SQLError.createSQLException( |
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159 | "No operations allowed after statement closed", |
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160 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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161 | } |
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162 | } catch (SQLException sqlEx) { |
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163 | checkAndFireConnectionError(sqlEx); |
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164 | } |
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165 | } |
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166 | |
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167 | public void setSQLXML(int parameterIndex, SQLXML xmlObject) |
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168 | throws SQLException { |
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169 | try { |
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170 | if (this.wrappedStmt != null) { |
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171 | ((PreparedStatement) this.wrappedStmt).setSQLXML(parameterIndex, |
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172 | xmlObject); |
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173 | } else { |
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174 | throw SQLError.createSQLException( |
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175 | "No operations allowed after statement closed", |
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176 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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177 | } |
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178 | } catch (SQLException sqlEx) { |
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179 | checkAndFireConnectionError(sqlEx); |
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180 | } |
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181 | } |
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182 | |
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183 | |
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184 | public void setNString(int parameterIndex, |
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185 | String value) |
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186 | throws SQLException { |
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187 | try { |
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188 | if (this.wrappedStmt != null) { |
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189 | ((PreparedStatement) this.wrappedStmt).setNString(parameterIndex, |
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190 | value); |
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191 | } else { |
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192 | throw SQLError.createSQLException( |
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193 | "No operations allowed after statement closed", |
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194 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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195 | } |
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196 | } catch (SQLException sqlEx) { |
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197 | checkAndFireConnectionError(sqlEx); |
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198 | } |
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199 | } |
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200 | |
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201 | public void setNCharacterStream(int parameterIndex, |
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202 | Reader value, |
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203 | long length) |
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204 | throws SQLException { |
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205 | try { |
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206 | if (this.wrappedStmt != null) { |
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207 | ((PreparedStatement) this.wrappedStmt).setNCharacterStream(parameterIndex, |
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208 | value, length); |
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209 | } else { |
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210 | throw SQLError.createSQLException( |
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211 | "No operations allowed after statement closed", |
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212 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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213 | } |
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214 | } catch (SQLException sqlEx) { |
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215 | checkAndFireConnectionError(sqlEx); |
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216 | } |
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217 | } |
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218 | |
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219 | public void setClob(int parameterIndex, |
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220 | Reader reader, |
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221 | long length) |
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222 | throws SQLException { |
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223 | try { |
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224 | if (this.wrappedStmt != null) { |
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225 | ((PreparedStatement) this.wrappedStmt).setClob(parameterIndex, |
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226 | reader, length); |
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227 | } else { |
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228 | throw SQLError.createSQLException( |
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229 | "No operations allowed after statement closed", |
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230 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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231 | } |
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232 | } catch (SQLException sqlEx) { |
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233 | checkAndFireConnectionError(sqlEx); |
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234 | } |
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235 | } |
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236 | |
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237 | public void setBlob(int parameterIndex, |
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238 | InputStream inputStream, |
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239 | long length) |
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240 | throws SQLException { |
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241 | try { |
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242 | if (this.wrappedStmt != null) { |
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243 | ((PreparedStatement) this.wrappedStmt).setBlob(parameterIndex, |
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244 | inputStream, length); |
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245 | } else { |
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246 | throw SQLError.createSQLException( |
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247 | "No operations allowed after statement closed", |
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248 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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249 | } |
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250 | } catch (SQLException sqlEx) { |
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251 | checkAndFireConnectionError(sqlEx); |
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252 | } |
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253 | } |
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254 | |
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255 | public void setNClob(int parameterIndex, |
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256 | Reader reader, |
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257 | long length) |
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258 | throws SQLException { |
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259 | try { |
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260 | if (this.wrappedStmt != null) { |
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261 | ((PreparedStatement) this.wrappedStmt).setNClob(parameterIndex, |
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262 | reader, length); |
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263 | } else { |
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264 | throw SQLError.createSQLException( |
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265 | "No operations allowed after statement closed", |
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266 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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267 | } |
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268 | } catch (SQLException sqlEx) { |
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269 | checkAndFireConnectionError(sqlEx); |
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270 | } |
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271 | } |
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272 | |
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273 | public void setAsciiStream(int parameterIndex, |
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274 | InputStream x, |
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275 | long length) |
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276 | throws SQLException { |
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277 | try { |
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278 | if (this.wrappedStmt != null) { |
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279 | ((PreparedStatement) this.wrappedStmt).setAsciiStream(parameterIndex, |
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280 | x, length); |
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281 | } else { |
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282 | throw SQLError.createSQLException( |
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283 | "No operations allowed after statement closed", |
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284 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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285 | } |
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286 | } catch (SQLException sqlEx) { |
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287 | checkAndFireConnectionError(sqlEx); |
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288 | } |
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289 | } |
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290 | |
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291 | public void setBinaryStream(int parameterIndex, |
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292 | InputStream x, |
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293 | long length) |
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294 | throws SQLException { |
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295 | try { |
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296 | if (this.wrappedStmt != null) { |
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297 | ((PreparedStatement) this.wrappedStmt).setBinaryStream(parameterIndex, |
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298 | x, length); |
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299 | } else { |
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300 | throw SQLError.createSQLException( |
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301 | "No operations allowed after statement closed", |
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302 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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303 | } |
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304 | } catch (SQLException sqlEx) { |
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305 | checkAndFireConnectionError(sqlEx); |
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306 | } |
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307 | } |
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308 | |
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309 | public void setCharacterStream(int parameterIndex, |
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310 | Reader reader, |
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311 | long length) |
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312 | throws SQLException { |
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313 | try { |
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314 | if (this.wrappedStmt != null) { |
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315 | ((PreparedStatement) this.wrappedStmt).setCharacterStream(parameterIndex, |
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316 | reader, length); |
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317 | } else { |
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318 | throw SQLError.createSQLException( |
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319 | "No operations allowed after statement closed", |
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320 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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321 | } |
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322 | } catch (SQLException sqlEx) { |
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323 | checkAndFireConnectionError(sqlEx); |
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324 | } |
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325 | } |
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326 | |
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327 | public void setAsciiStream(int parameterIndex, |
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328 | InputStream x) |
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329 | throws SQLException { |
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330 | try { |
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331 | if (this.wrappedStmt != null) { |
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332 | ((PreparedStatement) this.wrappedStmt).setAsciiStream(parameterIndex, |
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333 | x); |
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334 | } else { |
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335 | throw SQLError.createSQLException( |
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336 | "No operations allowed after statement closed", |
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337 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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338 | } |
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339 | } catch (SQLException sqlEx) { |
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340 | checkAndFireConnectionError(sqlEx); |
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341 | } |
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342 | } |
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343 | |
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344 | public void setBinaryStream(int parameterIndex, |
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345 | InputStream x) |
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346 | throws SQLException { |
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347 | try { |
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348 | if (this.wrappedStmt != null) { |
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349 | ((PreparedStatement) this.wrappedStmt).setBinaryStream(parameterIndex, |
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350 | x); |
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351 | } else { |
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352 | throw SQLError.createSQLException( |
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353 | "No operations allowed after statement closed", |
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354 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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355 | } |
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356 | } catch (SQLException sqlEx) { |
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357 | checkAndFireConnectionError(sqlEx); |
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358 | } |
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359 | } |
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360 | |
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361 | public void setCharacterStream(int parameterIndex, |
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362 | Reader reader) |
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363 | throws SQLException { |
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364 | try { |
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365 | if (this.wrappedStmt != null) { |
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366 | ((PreparedStatement) this.wrappedStmt).setCharacterStream(parameterIndex, |
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367 | reader); |
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368 | } else { |
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369 | throw SQLError.createSQLException( |
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370 | "No operations allowed after statement closed", |
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371 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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372 | } |
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373 | } catch (SQLException sqlEx) { |
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374 | checkAndFireConnectionError(sqlEx); |
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375 | } |
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376 | |
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377 | } |
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378 | |
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379 | public void setNCharacterStream(int parameterIndex, |
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380 | Reader value) |
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381 | throws SQLException { |
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382 | try { |
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383 | if (this.wrappedStmt != null) { |
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384 | ((PreparedStatement) this.wrappedStmt).setNCharacterStream(parameterIndex, |
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385 | value); |
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386 | } else { |
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387 | throw SQLError.createSQLException( |
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388 | "No operations allowed after statement closed", |
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389 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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390 | } |
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391 | } catch (SQLException sqlEx) { |
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392 | checkAndFireConnectionError(sqlEx); |
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393 | } |
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394 | |
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395 | } |
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396 | |
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397 | public void setClob(int parameterIndex, |
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398 | Reader reader) |
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399 | throws SQLException { |
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400 | try { |
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401 | if (this.wrappedStmt != null) { |
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402 | ((PreparedStatement) this.wrappedStmt).setClob(parameterIndex, |
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403 | reader); |
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404 | } else { |
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405 | throw SQLError.createSQLException( |
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406 | "No operations allowed after statement closed", |
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407 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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408 | } |
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409 | } catch (SQLException sqlEx) { |
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410 | checkAndFireConnectionError(sqlEx); |
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411 | } |
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412 | |
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413 | } |
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414 | |
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415 | public void setBlob(int parameterIndex, |
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416 | InputStream inputStream) |
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417 | throws SQLException { |
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418 | try { |
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419 | if (this.wrappedStmt != null) { |
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420 | ((PreparedStatement) this.wrappedStmt).setBlob(parameterIndex, |
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421 | inputStream); |
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422 | } else { |
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423 | throw SQLError.createSQLException( |
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424 | "No operations allowed after statement closed", |
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425 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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426 | } |
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427 | } catch (SQLException sqlEx) { |
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428 | checkAndFireConnectionError(sqlEx); |
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429 | } |
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430 | } |
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431 | |
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432 | public void setNClob(int parameterIndex, |
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433 | Reader reader) |
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434 | throws SQLException { |
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435 | try { |
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436 | if (this.wrappedStmt != null) { |
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437 | ((PreparedStatement) this.wrappedStmt).setNClob(parameterIndex, |
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438 | reader); |
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439 | } else { |
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440 | throw SQLError.createSQLException( |
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441 | "No operations allowed after statement closed", |
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442 | SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); |
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443 | } |
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444 | } catch (SQLException sqlEx) { |
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445 | checkAndFireConnectionError(sqlEx); |
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446 | } |
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447 | } |
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448 | |
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449 | /** |
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450 | * Returns true if this either implements the interface argument or is |
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451 | * directly or indirectly a wrapper for an object that does. Returns false |
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452 | * otherwise. If this implements the interface then return true, else if |
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453 | * this is a wrapper then return the result of recursively calling |
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454 | * <code>isWrapperFor</code> on the wrapped object. If this does not |
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455 | * implement the interface and is not a wrapper, return false. This method |
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456 | * should be implemented as a low-cost operation compared to |
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457 | * <code>unwrap</code> so that callers can use this method to avoid |
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458 | * expensive <code>unwrap</code> calls that may fail. If this method |
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459 | * returns true then calling <code>unwrap</code> with the same argument |
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460 | * should succeed. |
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461 | * |
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462 | * @param interfaces |
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463 | * a Class defining an interface. |
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464 | * @return true if this implements the interface or directly or indirectly |
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465 | * wraps an object that does. |
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466 | * @throws java.sql.SQLException |
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467 | * if an error occurs while determining whether this is a |
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468 | * wrapper for an object with the given interface. |
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469 | * @since 1.6 |
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470 | */ |
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471 | public boolean isWrapperFor(Class<?> iface) throws SQLException { |
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472 | |
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473 | boolean isInstance = iface.isInstance(this); |
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474 | |
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475 | if (isInstance) { |
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476 | return true; |
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477 | } |
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478 | |
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479 | String interfaceClassName = iface.getName(); |
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480 | |
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481 | return (interfaceClassName.equals("com.mysql.jdbc.Statement") |
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482 | || interfaceClassName.equals("java.sql.Statement") |
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483 | || interfaceClassName.equals("java.sql.PreparedStatement") |
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484 | || interfaceClassName.equals("java.sql.Wrapper")); |
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485 | } |
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486 | |
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487 | /** |
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488 | * Returns an object that implements the given interface to allow access to |
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489 | * non-standard methods, or standard methods not exposed by the proxy. The |
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490 | * result may be either the object found to implement the interface or a |
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491 | * proxy for that object. If the receiver implements the interface then that |
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492 | * is the object. If the receiver is a wrapper and the wrapped object |
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493 | * implements the interface then that is the object. Otherwise the object is |
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494 | * the result of calling <code>unwrap</code> recursively on the wrapped |
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495 | * object. If the receiver is not a wrapper and does not implement the |
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496 | * interface, then an <code>SQLException</code> is thrown. |
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497 | * |
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498 | * @param iface |
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499 | * A Class defining an interface that the result must implement. |
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500 | * @return an object that implements the interface. May be a proxy for the |
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501 | * actual implementing object. |
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502 | * @throws java.sql.SQLException |
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503 | * If no object found that implements the interface |
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504 | * @since 1.6 |
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505 | */ |
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506 | public synchronized <T> T unwrap(java.lang.Class<T> iface) |
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507 | throws java.sql.SQLException { |
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508 | try { |
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509 | if ("java.sql.Statement".equals(iface.getName()) |
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510 | || "java.sql.PreparedStatement".equals(iface.getName()) |
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511 | || "java.sql.Wrapper.class".equals(iface.getName())) { |
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512 | return iface.cast(this); |
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513 | } |
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514 | |
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515 | if (unwrappedInterfaces == null) { |
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516 | unwrappedInterfaces = new HashMap(); |
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517 | } |
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518 | |
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519 | Object cachedUnwrapped = unwrappedInterfaces.get(iface); |
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520 | |
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521 | if (cachedUnwrapped == null) { |
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522 | if (cachedUnwrapped == null) { |
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523 | cachedUnwrapped = Proxy.newProxyInstance( |
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524 | this.wrappedStmt.getClass().getClassLoader(), |
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525 | new Class[] { iface }, |
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526 | new ConnectionErrorFiringInvocationHandler(this.wrappedStmt)); |
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527 | unwrappedInterfaces.put(iface, cachedUnwrapped); |
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528 | } |
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529 | unwrappedInterfaces.put(iface, cachedUnwrapped); |
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530 | } |
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531 | |
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532 | return iface.cast(cachedUnwrapped); |
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533 | } catch (ClassCastException cce) { |
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534 | throw SQLError.createSQLException("Unable to unwrap to " |
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535 | + iface.toString(), SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); |
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536 | } |
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537 | } |
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538 | } |
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