Update of /cvsroot/woproject/woproject/projects/wolips/plugins/org.objectstyle.wolips.locate/java/org/objectstyle/wolips/locate/cache
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv18533/java/org/objectstyle/wolips/locate/cache
Added Files:
ComponentLocateCache.java
Log Message:
Caching of locate results.
--- NEW FILE: ComponentLocateCache.java ---
/* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2006 The ObjectStyle Group,
* and individual authors of the software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* ObjectStyle Group (http://objectstyle.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne"
* must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "ObjectStyle"
* nor may "ObjectStyle" appear in their names without prior written
* permission of the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the ObjectStyle Group. For more
* information on the ObjectStyle Group, please see
* <http://objectstyle.org/>.
*
*/
package org.objectstyle.wolips.locate.cache;
import java.util.HashMap;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceChangeEvent;
import org.eclipse.core.resources.IResourceChangeListener;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.resources.IResourceDeltaVisitor;
import org.eclipse.core.runtime.CoreException;
import org.objectstyle.wolips.locate.LocatePlugin;
import org.objectstyle.wolips.locate.result.LocalizedComponentsLocateResult;
public class ComponentLocateCache implements IResourceChangeListener {
private HashMap projects = new HashMap();
public ComponentLocateCache() {
super();
}
public void forgetCacheForProject(IProject project) {
String projectKey = project.getName();
projects.remove(projectKey);
}
public void forgetCacheForFile(IFile file) {
HashMap projectHashMap = this.project(file.getProject());
if (projectHashMap == null) {
return;
}
String key = LocatePlugin.getDefault().fileNameWithoutExtension(file);
projectHashMap.remove(key);
}
public LocalizedComponentsLocateResult getLocalizedComponentsLocateResult(
IFile file) {
HashMap projectHashMap = this.project(file.getProject());
if (projectHashMap == null) {
return null;
}
String key = LocatePlugin.getDefault().fileNameWithoutExtension(file);
LocalizedComponentsLocateResult localizedComponentsLocateResult = (LocalizedComponentsLocateResult) projectHashMap
.get(key);
return localizedComponentsLocateResult;
}
public void addToCache(IFile file,
LocalizedComponentsLocateResult localizedComponentsLocateResult) {
HashMap projectHashMap = this.project(file.getProject());
if (projectHashMap == null) {
projectHashMap = new HashMap();
String projectsKey = file.getProject().getName();
projects.put(projectsKey, projectHashMap);
}
String key = LocatePlugin.getDefault().fileNameWithoutExtension(file);
projectHashMap.put(key, localizedComponentsLocateResult);
}
private HashMap project(IProject project) {
HashMap projectHashMap = (HashMap) projects.get(project.getName());
return projectHashMap;
}
public void resourceChanged(IResourceChangeEvent event) {
if (event.getDelta() != null
&& event.getType() == IResourceChangeEvent.PRE_CLOSE) {
try {
event.getDelta().accept(new PreCloseVisitor());
} catch (CoreException e) {
LocatePlugin.getDefault().log(e);
projects = new HashMap();
}
}
if (event.getDelta() != null
&& event.getType() == IResourceChangeEvent.POST_CHANGE) {
try {
event.getDelta().accept(new PreDeleteVisitor());
} catch (CoreException e) {
LocatePlugin.getDefault().log(e);
projects = new HashMap();
}
}
}
private class PreCloseVisitor implements IResourceDeltaVisitor {
public boolean visit(IResourceDelta delta) throws CoreException {
IResource resource = delta.getResource();
if (resource != null) {
IProject project = resource.getProject();
ComponentLocateCache.this.forgetCacheForProject(project);
}
return true;
}
}
private class PreDeleteVisitor implements IResourceDeltaVisitor {
public boolean visit(IResourceDelta delta) throws CoreException {
IResource resource = delta.getResource();
if (resource.isDerived()) {
return false;
}
if (resource != null && !resource.isDerived()) {
if (resource instanceof IFile) {
if (delta.getKind() == IResourceDelta.ADDED
|| delta.getKind() == IResourceDelta.REMOVED) {
IFile file = (IFile) resource;
ComponentLocateCache.this.forgetCacheForFile(file);
}
}
}
return true;
}
}
}
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