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/*******************************************************************************
* Copyright (c) 2000, 2007 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.debug.internal.ui.views.breakpoints;
import java.util.HashMap;
import java.util.Vector;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.internal.ui.IInternalDebugUIConstants;
import org.eclipse.debug.internal.ui.importexport.breakpoints.IImportExportConstants;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.IWorkingSetManager;
import org.eclipse.ui.PlatformUI;
/**
* Class to cache the breakpoint to workingset information in its underlying
* marker as breakpoints are moved between breakpoint working sets.
* It resolves the need for constant attribute lookup and parsing to
* fix bug 103731
*
* @since 3.2
*/
public class BreakpointWorkingSetCache {
/**
* the entire cache
* key: marker
* value: vector of workingsets the marker belongs to
*/
HashMap fCache = null;
/**
* Default constructor
* @param organizer the oprganizer that owns this cache
*/
public BreakpointWorkingSetCache() {
fCache = new HashMap(15);
}
/**
* Adds an entry into the cache
* @param marker the marker to add the workingset information about
* @param entry the entry to add to the cache
*/
public void addEntry(IMarker marker, Object entry) {
Vector list = (Vector)fCache.get(marker);
if (list == null) {
list = new Vector();
list.addElement(entry);
fCache.put(marker, list);
}
else {
if(!list.contains(entry)) {
list.addElement(entry);
}
}
}
/**
* Removes an item from the list contained under the marker key, not the marker entry
* @param marker the marker key to remove the item from
* @param entry the entry to remove
*/
public void removeMappedEntry(IMarker marker, Object entry) {
Vector list = (Vector)fCache.get(marker);
if(list != null) {
list.remove(entry);
}
}
/**
* Flushes the cache of only the sepcified marker
* @param marker the marker whose cache is to be flushed
*/
public void flushMarkerCache(IMarker marker) {
IWorkingSetManager manager = PlatformUI.getWorkbench().getWorkingSetManager();
Vector list = (Vector)fCache.get(marker);
if(list != null) {
String names = IImportExportConstants.DELIMITER;
String ids = IImportExportConstants.DELIMITER;
for(int i = 0; i < list.size(); i++) {
String name = (String)list.elementAt(i);
IWorkingSet ws = manager.getWorkingSet(name);
if(ws != null) {
names += name+IImportExportConstants.DELIMITER;
ids += ws.getId()+IImportExportConstants.DELIMITER;
}
}
try {
marker.setAttribute(IInternalDebugUIConstants.WORKING_SET_NAME, names);
marker.setAttribute(IInternalDebugUIConstants.WORKING_SET_ID, ids);
}
catch(CoreException e) {DebugPlugin.log(e);}
}
}
}
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