plugins/org.symbian.tools.tmw.previewer/src/org/symbian/tools/tmw/previewer/preview/ProjectPreferencesManager.java
/**
* Copyright (c) 2010 Symbian Foundation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Symbian Foundation - initial contribution.
* Contributors:
* Description:
* Overview:
* Details:
* Platforms/Drives/Compatibility:
* Assumptions/Requirement/Pre-requisites:
* Failures and causes:
*/
package org.symbian.tools.tmw.previewer.preview;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.symbian.tools.tmw.previewer.PreviewerPlugin;
public final class ProjectPreferencesManager {
private static IFile getPreferencesXml(IProject project) {
return project.getFile(new Path(".settings").append(PreviewerPlugin.PLUGIN_ID).addFileExtension("xml"));
}
public static synchronized Properties getProjectProperties(IProject project) throws IOException, CoreException {
Properties projectPreferences = new Properties();
IFile xml = getPreferencesXml(project);
if (!xml.isSynchronized(IResource.DEPTH_ZERO)) {
xml.refreshLocal(IResource.DEPTH_ZERO, new NullProgressMonitor());
}
if (xml.isAccessible()) {
InputStream contents = null;
try {
contents = xml.getContents();
projectPreferences.loadFromXML(contents);
} finally {
if (contents != null) {
contents.close();
}
}
}
return projectPreferences;
}
public static synchronized void setProjectProperties(IProject project, Properties properties) throws IOException,
CoreException {
IFile xml = getPreferencesXml(project);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
properties.storeToXML(stream, null);
stream.close();
ByteArrayInputStream inputStream = new ByteArrayInputStream(stream.toByteArray());
if (xml.exists()) {
xml.setContents(inputStream, IFile.KEEP_HISTORY, new NullProgressMonitor());
} else {
xml.create(inputStream, false, new NullProgressMonitor());
}
inputStream.close();
}
private ProjectPreferencesManager() {
// No instantiation
}
}