/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.core.internal.resources;
import java.io.*;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.internal.utils.Messages;
import org.eclipse.core.internal.utils.ObjectMap;
import org.eclipse.core.resources.IResourceStatus;
import org.eclipse.core.runtime.*;
import org.eclipse.osgi.util.NLS;
/**
* This class is used to read sync info from disk. This is the implementation for reading files with
* version number 3.
*/
public class SyncInfoReader_3 extends SyncInfoReader {
// for sync info
public static final byte INDEX= 1;
public static final byte QNAME= 2;
public SyncInfoReader_3(Workspace workspace, Synchronizer synchronizer) {
super(workspace, synchronizer);
}
/**
* SAVE_FILE -> VERSION_ID RESOURCE+ VERSION_ID -> int RESOURCE -> RESOURCE_PATH SIZE SYNCINFO*
* RESOURCE_PATH -> String SIZE -> int SYNCINFO -> TYPE BYTES TYPE -> INDEX | QNAME INDEX ->
* byte int QNAME -> byte String BYTES -> byte[]
*
*/
public void readSyncInfo(DataInputStream input) throws IOException, CoreException {
try {
List readPartners= new ArrayList(5);
while (true) {
IPath path= new Path(input.readUTF());
readSyncInfo(path, input, readPartners);
}
} catch (EOFException e) {
// ignore end of file
}
}
private void readSyncInfo(IPath path, DataInputStream input, List readPartners) throws IOException, CoreException {
int size= input.readInt();
ObjectMap table= new ObjectMap(size);
for (int i= 0; i < size; i++) {
QualifiedName name= null;
byte type= input.readByte();
switch (type) {
case QNAME:
String qualifier= input.readUTF();
String local= input.readUTF();
name= new QualifiedName(qualifier, local);
readPartners.add(name);
break;
case INDEX:
name= (QualifiedName)readPartners.get(input.readInt());
break;
default:
//if we get here then the sync info file is corrupt
String msg= NLS.bind(Messages.resources_readSync, path == null ? "" : path.toString()); //$NON-NLS-1$
throw new ResourceException(IResourceStatus.FAILED_READ_METADATA, path, msg, null);
}
// read the bytes
int length= input.readInt();
byte[] bytes= new byte[length];
input.readFully(bytes);
// put them in the table
table.put(name, bytes);
}
// set the table on the resource info
ResourceInfo info= workspace.getResourceInfo(path, true, false);
if (info == null)
return;
info.setSyncInfo(table);
info.clear(ICoreConstants.M_SYNCINFO_SNAP_DIRTY);
}
}