[6] | 1 | /* |
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| 2 | * <p>$Id: QueuedFileServer.java,v 1.1 2001/01/15 15:38:47 pn Exp $</p><br> |
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| 3 | * |
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| 4 | * <p>The class AtaTest provides some facilities for writing application test programs.</p> |
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| 5 | * |
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| 6 | * @author Phillip Link |
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| 7 | * @since 1.2 |
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| 8 | * |
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| 9 | */ |
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| 10 | package fr.alcatel.ether.app.common; |
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| 11 | |
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| 12 | // JDK - utils |
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| 13 | import java.util.Collections; |
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| 14 | import java.util.Map; |
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| 15 | import java.util.HashMap; |
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| 16 | import java.util.Vector; |
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| 17 | import java.util.ArrayList; |
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| 18 | // JDK - rmi |
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| 19 | import java.rmi.RemoteException; |
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| 20 | // JDK - io |
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| 21 | import java.io.File; |
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| 22 | import java.io.FileInputStream; |
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| 23 | import java.io.FileOutputStream; |
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| 24 | import java.io.BufferedOutputStream; |
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| 25 | import java.io.IOException; |
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| 26 | import java.io.FileNotFoundException; |
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| 27 | // Ether Remote File Classes |
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| 28 | import fr.alcatel.ether.app.common.RemoteFile; |
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| 29 | import fr.alcatel.ether.app.common.RemoteFileImpl; |
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| 30 | import fr.alcatel.ether.app.common.RemoteFileManager; |
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| 31 | // flafi CopyFile |
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| 32 | import flafi.util.FileCopy2; |
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| 33 | |
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| 34 | import fr.alcatel.ether.tools.Trace; |
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| 35 | |
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| 36 | public class QueuedFileServer implements Runnable { |
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| 37 | |
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| 38 | private static final boolean DEBUG = true; |
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| 39 | |
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| 40 | /** RemoteFileManager that we work for - our boss */ |
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| 41 | RemoteFileManager manager = null; |
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| 42 | |
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| 43 | /** Event queue */ |
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| 44 | private Vector queue = new Vector(); |
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| 45 | |
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| 46 | /** Collection of file input streams, keyed on file name */ |
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| 47 | private final Map inputs = Collections.synchronizedMap( new HashMap() ); |
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| 48 | /** Collection of file input buffers, keyed on file name */ |
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| 49 | private final Map inputBuffers = Collections.synchronizedMap( new HashMap() ); |
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| 50 | |
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| 51 | /** Collection of currently open file input streams, keyed on file name */ |
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| 52 | private final Map open = Collections.synchronizedMap( new HashMap() ); |
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| 53 | |
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| 54 | /** Default buffer size used for copying */ |
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| 55 | public static final int DEFAULT_BUFFER_SIZE = 4096; |
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| 56 | /** Default buffer size used for copying */ |
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| 57 | public static final int MIN_BUFFER_SIZE = 128; |
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| 58 | |
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| 59 | /** Current buffer size used for copying */ |
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| 60 | private int bufferSize = DEFAULT_BUFFER_SIZE; |
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| 61 | |
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| 62 | /** |
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| 63 | * <p>Basic constructor.</p> |
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| 64 | * <p>Starts thread, which waits for operations to perform.</p> |
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| 65 | */ |
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| 66 | public QueuedFileServer( RemoteFileManager manager ) |
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| 67 | { |
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| 68 | this.manager = manager; |
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| 69 | |
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| 70 | Thread t = new Thread(this, "QueuedFileServer"); |
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| 71 | |
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| 72 | t.start(); |
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| 73 | } |
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| 74 | |
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| 75 | // ------------------------------------------------------------- |
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| 76 | // ------------------------------------------------------------- |
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| 77 | // Regular file operations |
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| 78 | // ------------------------------------------------------------- |
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| 79 | // ------------------------------------------------------------- |
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| 80 | |
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| 81 | /** |
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| 82 | * Check if a file is already open on this server. |
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| 83 | * |
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| 84 | * @param file: the file to check |
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| 85 | */ |
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| 86 | private synchronized boolean isOpen( File file ) { |
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| 87 | FileInputStream input = (FileInputStream)inputs.get( file ); |
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| 88 | if ( input != null ) { |
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| 89 | return true; |
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| 90 | } |
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| 91 | return false; |
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| 92 | } |
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| 93 | |
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| 94 | /** |
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| 95 | * <p>Rapatrier un fichier distant sur ce serveur.</p> |
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| 96 | * <p>Le fichier créé est un fichier temporaire.</p> |
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| 97 | * |
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| 98 | * @param file: le fichier à raptrier |
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| 99 | */ |
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| 100 | public File opRetrieve( RemoteFile file ) { |
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| 101 | File retrieved = null; |
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| 102 | try { |
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| 103 | // ------------------------------------------- |
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| 104 | // Debugging |
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| 105 | // ------------------------------------------- |
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| 106 | if ( DEBUG ) { debug( "QueuedFileServer retrieving file " + file); } |
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| 107 | |
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| 108 | RemoteFileManager distant = file.getFileManager( ); |
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| 109 | // ----------------------------------------------- |
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| 110 | // This is our file |
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| 111 | // Create a temporary copy so that clients |
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| 112 | // can delete it without worrying about deleting |
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| 113 | // the original. |
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| 114 | // ----------------------------------------------- |
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| 115 | if ( manager.equals(distant) ) { |
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| 116 | File local = manager.getLocalFile( file ); |
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| 117 | retrieved = File.createTempFile( "eth", ".tmp" ); |
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| 118 | FileCopy2.copy( local, retrieved ); |
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| 119 | } |
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| 120 | // ----------------------------------------------- |
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| 121 | // Read bytes from remote file manager and |
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| 122 | // write to a local stream |
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| 123 | // ----------------------------------------------- |
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| 124 | else { |
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| 125 | retrieved = File.createTempFile( "eth", ".tmp" ); |
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| 126 | FileOutputStream os = new FileOutputStream( retrieved ); |
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| 127 | BufferedOutputStream out = new BufferedOutputStream( os ); |
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| 128 | distant.open( file ); |
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| 129 | try { |
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| 130 | while ( true ) { |
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| 131 | byte[] buffer = distant.read( file ); |
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| 132 | out.write( buffer, 0, buffer.length ); |
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| 133 | } |
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| 134 | } |
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| 135 | // Exception signals that there is nothing left to read |
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| 136 | catch ( IOException ignored ) { |
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| 137 | //if ( DEBUG ) { Trace.debug( this, "Finished reading file ", ignored ); } |
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| 138 | } |
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| 139 | out.close( ); |
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| 140 | distant.close( file ); |
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| 141 | } |
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| 142 | |
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| 143 | if ( DEBUG ) { debug( "QueuedFileServer ENDING retrieving file " + file); } |
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| 144 | } |
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| 145 | catch ( FileNotFoundException fileNotFound ) { |
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| 146 | if ( DEBUG ) { debug( "Could not find file '" + file + "' !", fileNotFound ); } |
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| 147 | } |
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| 148 | catch ( IOException ioProblem ) { |
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| 149 | if ( DEBUG ) { debug( "Had a problem retrieving '" + file + "' !", ioProblem ); } |
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| 150 | } |
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| 151 | catch ( Exception exception ) { |
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| 152 | if ( DEBUG ) { debug( "Had a problem retrieving '" + file + "' !", exception ); } |
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| 153 | } |
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| 154 | return retrieved; |
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| 155 | } |
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| 156 | |
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| 157 | |
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| 158 | /** |
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| 159 | * Copier un fichier distant. |
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| 160 | * |
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| 161 | * @param src: le fichier source |
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| 162 | * @param dest: le fichier destination |
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| 163 | */ |
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| 164 | public boolean opCopy( RemoteFile src, RemoteFile dest ) { |
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| 165 | boolean success = false; |
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| 166 | boolean deleteTemp = false; |
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| 167 | File source = null; |
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| 168 | try { |
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| 169 | // ------------------------------------------- |
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| 170 | // Debugging |
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| 171 | // ------------------------------------------- |
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| 172 | if ( DEBUG ) { debug( "QueuedFileServer copying file." ); } |
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| 173 | if ( DEBUG ) { debug( "Source file is " + src ); } |
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| 174 | if ( DEBUG ) { debug( "Destination file is " + dest ); } |
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| 175 | |
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| 176 | RemoteFileManager distant = dest.getFileManager( ); |
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| 177 | // ----------------------------------------------- |
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| 178 | // This is a job for us |
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| 179 | // ----------------------------------------------- |
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| 180 | if ( manager.equals(distant) ) { |
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| 181 | File destination = manager.getLocalFile( dest ); |
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| 182 | RemoteFileManager other = src.getFileManager( ); |
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| 183 | if ( manager.equals(other) ) { |
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| 184 | // ------------------------------------------- |
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| 185 | // Retrieve our local source file. |
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| 186 | // ------------------------------------------- |
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| 187 | if ( DEBUG ) { debug( "Retrieving local file " + src ); } |
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| 188 | source = manager.getLocalFile( src ); |
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| 189 | } |
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| 190 | else { |
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| 191 | // ------------------------------------------- |
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| 192 | // Ask the destination manager to retrieve the |
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| 193 | // source file for us. |
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| 194 | // ------------------------------------------- |
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| 195 | if ( DEBUG ) { debug( "Retrieving remote file " + src ); } |
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| 196 | deleteTemp = true; |
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| 197 | //source = distant.retrieve( src ); |
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| 198 | source = opRetrieve(src); |
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| 199 | } |
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| 200 | // --------------------------------------------- |
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| 201 | // This is a job for the remote manager |
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| 202 | // --------------------------------------------- |
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| 203 | if ( DEBUG ) { debug( "Copying source file " + source.getAbsolutePath() ); } |
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| 204 | FileCopy2.copy( source, destination ); |
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| 205 | success = true; |
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| 206 | } |
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| 207 | // ----------------------------------------------- |
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| 208 | // This is a job for the remote manager |
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| 209 | // ----------------------------------------------- |
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| 210 | else { |
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| 211 | if ( DEBUG ) { debug( "Warning trying to copy file '" + dest + "' on wrong QueuedFileServer !" ); } |
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| 212 | success = distant.copy( src, dest ); |
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| 213 | } |
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| 214 | } |
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| 215 | catch ( FileNotFoundException fileNotFound ) { |
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| 216 | if ( DEBUG ) { debug( "Could not find file '" + src + "' !", fileNotFound ); } |
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| 217 | } |
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| 218 | catch ( IOException ioProblem ) { |
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| 219 | if ( DEBUG ) { debug( "Had a problem copying '" + src + "' to '" + dest + "' !", ioProblem ); } |
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| 220 | } |
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| 221 | catch ( Exception exception ) { |
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| 222 | if ( DEBUG ) { debug( "Had a problem copying '" + src + "' to '" + dest + "' !", exception ); } |
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| 223 | } |
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| 224 | // ------------------------------------------- |
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| 225 | // Delete the temporary file. |
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| 226 | // ------------------------------------------- |
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| 227 | finally { |
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| 228 | if ( deleteTemp && source != null ) { |
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| 229 | source.delete( ); |
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| 230 | } |
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| 231 | } |
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| 232 | return success; |
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| 233 | } |
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| 234 | |
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| 235 | /** |
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| 236 | * Transférer un fichier distant. |
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| 237 | * |
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| 238 | * @param src: le fichier source |
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| 239 | * @param dest: le fichier destination |
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| 240 | */ |
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| 241 | public boolean opMove( RemoteFile src, RemoteFile dest ) { |
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| 242 | boolean success = false; |
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| 243 | boolean deleteTemp = false; |
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| 244 | File source = null; |
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| 245 | try { |
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| 246 | // ------------------------------------------- |
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| 247 | // Debugging |
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| 248 | // ------------------------------------------- |
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| 249 | if ( DEBUG ) { debug( "QueuedFileServer moving file." ); } |
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| 250 | if ( DEBUG ) { debug( "Source file is " + src ); } |
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| 251 | if ( DEBUG ) { debug( "Destination file is " + dest ); } |
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| 252 | success = opCopy( src, dest ); |
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| 253 | if ( success ) { |
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| 254 | success = opDelete( src ); |
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| 255 | } |
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| 256 | } |
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| 257 | catch ( Exception exception ) { |
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| 258 | if ( DEBUG ) { debug( "Had a problem moving '" + src + "' to '" + dest + "' !", exception ); } |
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| 259 | } |
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| 260 | return success; |
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| 261 | } |
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| 262 | |
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| 263 | /** |
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| 264 | * Supprimer un fichier distant. |
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| 265 | * |
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| 266 | * @param file: le fichier à supprimer |
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| 267 | */ |
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| 268 | public boolean opDelete( RemoteFile file ) { |
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| 269 | boolean success = false; |
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| 270 | try { |
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| 271 | RemoteFileManager distant = file.getFileManager( ); |
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| 272 | // ------------------------------------------- |
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| 273 | // Delete the file found on this local filesystem. |
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| 274 | // ------------------------------------------- |
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| 275 | if ( manager.equals(distant) ) { |
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| 276 | if ( DEBUG ) { debug( "QueuedFileServer deleting file '" + file + "'." ); } |
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| 277 | File toBeDeleted = manager.getLocalFile( file ); |
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| 278 | if ( toBeDeleted != null ) { |
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| 279 | toBeDeleted.delete( ); |
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| 280 | success = true; |
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| 281 | } |
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| 282 | } |
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| 283 | // ------------------------------------------- |
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| 284 | // Ask the destination manager to delete the |
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| 285 | // source file for us. |
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| 286 | // This case should not happen |
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| 287 | // ------------------------------------------- |
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| 288 | else { |
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| 289 | if ( DEBUG ) { debug( "Warning: trying to delete file '" + file + "' on wrong QueuedFileServer !" ); } |
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| 290 | success = manager.delete( file ); |
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| 291 | } |
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| 292 | } |
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| 293 | catch ( FileNotFoundException fileNotFound ) { |
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| 294 | if ( DEBUG ) { debug( "Could not find file '" + file + "' !", fileNotFound ); } |
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| 295 | } |
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| 296 | catch ( IOException ioProblem ) { |
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| 297 | if ( DEBUG ) { debug( "Had a problem deleting '" + file + "' !", ioProblem ); } |
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| 298 | } |
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| 299 | catch ( Exception exception ) { |
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| 300 | if ( DEBUG ) { debug( "Had a problem deleting '" + file + "' t !", exception ); } |
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| 301 | } |
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| 302 | return success; |
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| 303 | } |
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| 304 | |
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| 305 | /** |
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| 306 | * <p>Lister tous les fichiers dans un répertoires, ainsi que dans les sous-répertoires.</p> |
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| 307 | * |
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| 308 | * @param directory: le répertoire à lister |
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| 309 | * @return : la liste des fichiers se trouvant dans le répertoire |
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| 310 | */ |
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| 311 | public ArrayList opList( RemoteFile directory ) { |
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| 312 | final String ERROR = "Had a problem listing '" + directory + "' !"; |
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| 313 | ArrayList remoteFiles = null; |
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| 314 | try { |
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| 315 | RemoteFileManager distant = directory.getFileManager( ); |
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| 316 | // ------------------------------------------- |
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| 317 | // List the directory. |
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| 318 | // ------------------------------------------- |
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| 319 | if ( manager.equals(distant) ) { |
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| 320 | // ----------------------------------------- |
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| 321 | // Debugging |
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| 322 | // ----------------------------------------- |
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| 323 | if ( DEBUG ) { debug( "QueuedFileServer listing directory " + directory ); } |
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| 324 | remoteFiles = opList( directory, directory.getAbsolutePath() ); |
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| 325 | } |
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| 326 | // ------------------------------------------- |
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| 327 | // Ask the destination manager to retrieve the |
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| 328 | // source file for us. |
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| 329 | // ------------------------------------------- |
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| 330 | else { |
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| 331 | if ( DEBUG ) { debug( "Warning: trying to list directory '" + directory + "' on wrong QueuedFileServer !" ); } |
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| 332 | remoteFiles = distant.list( directory ); |
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| 333 | } |
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| 334 | } |
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| 335 | catch ( RemoteException remoteProblem ) { |
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| 336 | if ( DEBUG ) { debug( ERROR, remoteProblem ); } |
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| 337 | } |
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| 338 | catch ( IOException ioProblem ) { |
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| 339 | if ( DEBUG ) { debug( ERROR, ioProblem ); } |
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| 340 | } |
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| 341 | catch ( Exception exception ) { |
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| 342 | if ( DEBUG ) { debug( ERROR, exception ); } |
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| 343 | } |
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| 344 | return remoteFiles; |
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| 345 | |
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| 346 | } |
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| 347 | |
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| 348 | /** |
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| 349 | * <p>Lister les fichiers distant d'un hôte.</p> |
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| 350 | * <p>On considère que le répertoire de base des fichiers est le répertoire passé en argument.</p> |
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| 351 | * |
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| 352 | * @param directory: le répertoire distant |
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| 353 | * @param base: le répertoire distant de l'appel d'origine (traitement récursif) |
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| 354 | */ |
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| 355 | protected ArrayList opList( RemoteFile directory, String base ) throws RemoteException { |
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| 356 | final String ERROR = "Had a problem listing " + directory + "(" + base + ")"; |
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| 357 | ArrayList remoteFiles = null; |
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| 358 | try { |
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| 359 | // ------------------------------------------- |
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| 360 | // Debugging |
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| 361 | // ------------------------------------------- |
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| 362 | if ( DEBUG ) { debug( "Listing directory " + directory + " with base dir " + base ); } |
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| 363 | |
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| 364 | // ------------------------------------------- |
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| 365 | // Ask the destination manager to retrieve the |
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| 366 | // local file for us. |
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| 367 | // Let remote file server function fail |
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| 368 | // before allocating a new arraylist so that |
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| 369 | // return value is null if there is an error. |
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| 370 | // ------------------------------------------- |
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| 371 | File toList = directory.getFileManager().getLocalFile( directory ); |
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| 372 | remoteFiles = new ArrayList( ); |
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| 373 | File[] list = toList.listFiles( ); |
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| 374 | for (int i = 0 ; i < list.length; i++ ) |
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| 375 | { |
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| 376 | String absolute = list[i].getAbsolutePath( ); |
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| 377 | //if ( DEBUG ) { Trace.debug( this, "Absolute path found:" + absolute ); } |
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| 378 | if ( list[i].isDirectory() ) |
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| 379 | { |
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| 380 | RemoteFile file = new RemoteFileImpl( directory.getHost(), absolute ); |
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| 381 | remoteFiles.addAll( opList(file, base) ); |
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| 382 | } |
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| 383 | else |
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| 384 | { |
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| 385 | // Retrieve the substring after the base dir, minus the file separator |
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| 386 | // (relative paths should not begin with a file separator) |
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| 387 | int startRelative = absolute.lastIndexOf( base ); |
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| 388 | String relative = absolute.substring( startRelative + base.length()+1 ); |
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| 389 | //if ( DEBUG ) { Trace.debug( this, "Relative path found:" + relative ); } |
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| 390 | RemoteFile file = new RemoteFileImpl( directory.getHost(), relative ); |
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| 391 | file.setBaseDir( base ); |
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| 392 | remoteFiles.add( file ); |
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| 393 | } |
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| 394 | } |
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| 395 | } |
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| 396 | catch ( FileNotFoundException fileNotFound ) { |
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| 397 | if ( DEBUG ) { debug( ERROR, fileNotFound ); } |
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| 398 | } |
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| 399 | catch ( IOException ioProblem ) { |
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| 400 | if ( DEBUG ) { debug( ERROR, ioProblem ); } |
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| 401 | } |
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| 402 | catch ( Exception exception ) { |
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| 403 | if ( DEBUG ) { debug( ERROR, exception ); } |
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| 404 | } |
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| 405 | return remoteFiles; |
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| 406 | } |
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| 407 | |
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| 408 | /** |
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| 409 | * <p>Déterminer la taille, en octets, du fichier ou de tous les fichiers dans un répertoire.</p> |
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| 410 | * |
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| 411 | * @param directory: le fichier ou le répertoire |
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| 412 | * |
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| 413 | * @return la taille du fichier, ou la taille de tous les fichiers s'y trouvant (y compris dans les sous-répertoires) |
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| 414 | */ |
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| 415 | public long opSize( RemoteFile directory ) { |
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| 416 | long length = 0; |
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| 417 | final String ERROR = "Had a problem obtaining size of " + directory; |
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| 418 | try { |
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| 419 | // ------------------------------------------- |
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| 420 | // Ask the destination manager to retrieve the |
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| 421 | // source file for us. |
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| 422 | // ------------------------------------------- |
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| 423 | length = opSize( directory, directory.getAbsolutePath() ); |
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| 424 | } |
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| 425 | catch ( RemoteException remoteException ) { |
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| 426 | if ( DEBUG ) { debug( ERROR, remoteException ); } |
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| 427 | } |
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| 428 | catch ( IOException ioProblem ) { |
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| 429 | if ( DEBUG ) { debug( ERROR, ioProblem ); } |
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| 430 | } |
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| 431 | catch ( Exception exception ) { |
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| 432 | if ( DEBUG ) { debug( ERROR, exception ); } |
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| 433 | } |
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| 434 | if ( DEBUG ) { debug( "Size of files in " + directory + ": " + length + " bytes" ); } |
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| 435 | return length; |
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| 436 | } |
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| 437 | |
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| 438 | /* |
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| 439 | * <p>Determine the size, in bytes, of the file or of all the files in a directory.</p> |
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| 440 | * <p>Recursive call.</p> |
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| 441 | * |
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| 442 | * @see size(RemoteFile directory); |
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| 443 | */ |
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| 444 | protected long opSize( RemoteFile directory, String base ) throws RemoteException { |
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| 445 | long length = 0; |
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| 446 | final String ERROR = "Had a problem obtaining size of " + directory; |
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| 447 | try { |
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| 448 | // ------------------------------------------- |
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| 449 | // Debugging |
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| 450 | // ------------------------------------------- |
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| 451 | if ( DEBUG ) { debug( "Checking size of " + directory ); } |
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| 452 | // ------------------------------------------- |
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| 453 | // Ask the destination manager to retrieve the |
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| 454 | // source file for us. |
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| 455 | // ------------------------------------------- |
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| 456 | File toList = directory.getFileManager().getLocalFile( directory ); |
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| 457 | File[] list = toList.listFiles( ); |
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| 458 | // File is a directory |
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| 459 | if ( list != null ) { |
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| 460 | // Add length of directory |
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| 461 | length += toList.length( ); |
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| 462 | // Add length of all files in directory |
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| 463 | for (int i = 0 ; i < list.length; i++ ) |
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| 464 | { |
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| 465 | RemoteFile file = new RemoteFileImpl( directory.getHost(), list[i].getAbsolutePath() ); |
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| 466 | length += opSize( file, base ); |
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| 467 | } |
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| 468 | } |
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| 469 | // File is a regular file |
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| 470 | else { |
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| 471 | length = toList.length( ); |
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| 472 | } |
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| 473 | return length; |
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| 474 | } |
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| 475 | catch ( RemoteException remoteException ) { |
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| 476 | if ( DEBUG ) { debug( ERROR, remoteException ); } |
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| 477 | } |
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| 478 | catch ( FileNotFoundException fileNotFound ) { |
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| 479 | if ( DEBUG ) { debug( ERROR, fileNotFound ); } |
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| 480 | } |
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| 481 | catch ( IOException ioProblem ) { |
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| 482 | if ( DEBUG ) { debug( ERROR, ioProblem ); } |
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| 483 | } |
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| 484 | catch ( Exception exception ) { |
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| 485 | if ( DEBUG ) { debug( ERROR, exception ); } |
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| 486 | } |
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| 487 | return length; |
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| 488 | } |
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| 489 | |
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| 490 | /** |
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| 491 | * <p>Déterminer si un fichier distant existe.</p> |
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| 492 | * |
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| 493 | * @param file: fichier distant à vérifier |
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| 494 | * |
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| 495 | * @return true si le fichier distant existe |
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| 496 | */ |
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| 497 | public boolean opExist( RemoteFile file ) { |
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| 498 | final String ERROR = "Error checking existence of file " + file; |
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| 499 | boolean exists = false; |
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| 500 | try { |
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| 501 | RemoteFileManager distant = file.getFileManager( ); |
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| 502 | if ( distant.equals(manager) ) { |
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| 503 | File local = manager.getLocalFile( file ); |
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| 504 | exists = local.exists( ); |
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| 505 | } |
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| 506 | else { |
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| 507 | exists = manager.exists( file ); |
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| 508 | } |
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| 509 | } |
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| 510 | catch ( RemoteException remoteProblem ) { |
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| 511 | if ( DEBUG ) { debug( ERROR, remoteProblem ); } |
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| 512 | } |
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| 513 | catch ( Exception e ) { |
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| 514 | if ( DEBUG ) { debug( ERROR, e ); } |
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| 515 | } |
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| 516 | finally { |
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| 517 | return exists; |
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| 518 | } |
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| 519 | } |
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| 520 | |
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| 521 | /** |
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| 522 | * <p>Posts an event to the QueuedFileServer that does not have a result.</p>. |
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| 523 | * |
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| 524 | * @param evt: the event to post to the QueuedFileServer thread |
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| 525 | */ |
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| 526 | public synchronized void postEvent( RemoteFileServerEvent evt ) |
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| 527 | { |
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| 528 | queue.addElement( evt ); |
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| 529 | notify( ); |
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| 530 | } |
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| 531 | |
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| 532 | /** |
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| 533 | * <p>Posts an event to the QueuedFileServer that has a result.</p>. |
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| 534 | * |
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| 535 | * @param evt: the event to post to the QueuedFileServer thread |
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| 536 | */ |
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| 537 | public synchronized void postEventWithResult( RemoteFileServerEvent evt ) |
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| 538 | { |
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| 539 | evt.setHasResult( true ); |
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| 540 | queue.addElement( evt ); |
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| 541 | notify( ); |
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| 542 | try { |
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| 543 | wait( ); |
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| 544 | } |
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| 545 | catch ( InterruptedException ie ) { |
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| 546 | evt.setResult( null ); |
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| 547 | } |
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| 548 | } |
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| 549 | |
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| 550 | public synchronized void run() |
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| 551 | { |
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| 552 | debug( "QueuedFileServer running" ); |
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| 553 | while ( true ) { |
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| 554 | try { |
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| 555 | debug( "QueuedFileServer wait" ); |
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| 556 | wait( ); |
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| 557 | |
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| 558 | while ( queue.size() > 0 ) { |
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| 559 | debug( "QueuedFileServer getting next event" ); |
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| 560 | RemoteFileServerEvent evt = (RemoteFileServerEvent) queue.elementAt( 0 ); |
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| 561 | |
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| 562 | queue.removeElementAt( 0 ); |
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| 563 | debug( "QueuedFileServer handling event" ); |
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| 564 | handleEvent( evt ); |
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| 565 | } |
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| 566 | } |
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| 567 | catch ( InterruptedException ie ) { |
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| 568 | debug( "QueuedFileServer interrupted" ); |
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| 569 | } |
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| 570 | } // end while() |
---|
| 571 | } |
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| 572 | |
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| 573 | private synchronized void handleEvent( RemoteFileServerEvent evt ) |
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| 574 | { |
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| 575 | String op; |
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| 576 | boolean result; |
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| 577 | RemoteFile src = null; |
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| 578 | RemoteFile dest = null; |
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| 579 | switch( evt.getType() ) { |
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| 580 | case evt.OPEN: |
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| 581 | op = "OPEN"; |
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| 582 | break; |
---|
| 583 | case evt.CLOSE: |
---|
| 584 | op = "CLOSE"; |
---|
| 585 | break; |
---|
| 586 | case evt.READ: |
---|
| 587 | op = "READ"; |
---|
| 588 | break; |
---|
| 589 | case evt.WRITE: |
---|
| 590 | op = "WRITE"; |
---|
| 591 | break; |
---|
| 592 | case evt.COPY: |
---|
| 593 | op = "COPY"; |
---|
| 594 | src = (RemoteFile)evt.getArg( 0 ); |
---|
| 595 | dest = (RemoteFile)evt.getArg( 1 ); |
---|
| 596 | result = opCopy( src, dest ); |
---|
| 597 | evt.setResult( new Boolean(result) ); |
---|
| 598 | break; |
---|
| 599 | case evt.MOVE: |
---|
| 600 | op = "MOVE"; |
---|
| 601 | src = (RemoteFile)evt.getArg( 0 ); |
---|
| 602 | dest = (RemoteFile)evt.getArg( 1 ); |
---|
| 603 | result = opMove( src, dest ); |
---|
| 604 | evt.setResult( new Boolean(result) ); |
---|
| 605 | break; |
---|
| 606 | case evt.DELETE: |
---|
| 607 | op = "DELETE"; |
---|
| 608 | src = (RemoteFile)evt.getArg( 0 ); |
---|
| 609 | result = opDelete( src ); |
---|
| 610 | evt.setResult( new Boolean(result) ); |
---|
| 611 | break; |
---|
| 612 | case evt.LIST: |
---|
| 613 | op = "LIST"; |
---|
| 614 | src = (RemoteFile)evt.getArg( 0 ); |
---|
| 615 | ArrayList files = opList( src ); |
---|
| 616 | evt.setResult( files ); |
---|
| 617 | break; |
---|
| 618 | case evt.EXISTS: |
---|
| 619 | op = "EXISTS"; |
---|
| 620 | src = (RemoteFile)evt.getArg( 0 ); |
---|
| 621 | result = opExist( src ); |
---|
| 622 | evt.setResult( new Boolean(result) ); |
---|
| 623 | break; |
---|
| 624 | case evt.SIZE: |
---|
| 625 | op = "SIZE"; |
---|
| 626 | src = (RemoteFile)evt.getArg( 0 ); |
---|
| 627 | long size = opSize( src ); |
---|
| 628 | evt.setResult( new Long(size) ); |
---|
| 629 | break; |
---|
| 630 | case evt.RETRIEVE: |
---|
| 631 | op = "RETRIEVE"; |
---|
| 632 | src = (RemoteFile)evt.getArg( 0 ); |
---|
| 633 | File file = opRetrieve( src ); |
---|
| 634 | evt.setResult( file ); |
---|
| 635 | break; |
---|
| 636 | default: |
---|
| 637 | op = "DEFAULT"; |
---|
| 638 | break; |
---|
| 639 | } |
---|
| 640 | if ( evt.getHasResult() ) { |
---|
| 641 | notify(); |
---|
| 642 | } |
---|
| 643 | |
---|
| 644 | debug( "QueuedFileServer did " + op ); |
---|
| 645 | } |
---|
| 646 | |
---|
| 647 | private synchronized void debug( String debug ) { |
---|
| 648 | //System.out.println( debug ); |
---|
| 649 | Trace.debug(this,debug); |
---|
| 650 | } |
---|
| 651 | |
---|
| 652 | private synchronized void debug( String debug, Throwable t ) { |
---|
| 653 | // System.out.println( debug ); |
---|
| 654 | // t.printStackTrace( ); |
---|
| 655 | Trace.debug(this,debug,t); |
---|
| 656 | } |
---|
| 657 | |
---|
| 658 | |
---|
| 659 | } |
---|