/*******************************************************************************
* Copyright (c) 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.core.internal.filesystem;
import java.io.File;
import org.eclipse.core.runtime.*;
import org.eclipse.osgi.service.datalocation.Location;
import org.osgi.framework.*;
/**
* This class abstracts away implementation details of the filesystem
* bundle that depend on the OSGi framework being started. All
* file system bundle functionality is enabled regardless of whether
* OSGi is running.
* @since org.eclipse.core.filesystem 1.1
*/
public class Activator implements BundleActivator {
private static Activator instance;
private BundleContext context;
/**
* Returns the local file system location that should be used for
* caching file data.
*/
public static IPath getCacheLocation() {
//try to put the cache in the instance location if possible (3.2 behaviour)
try {
if (instance != null) {
BundleContext ctx = instance.context;
if (ctx != null) {
ServiceReference[] refs = ctx.getServiceReferences(Location.class.getName(), Location.INSTANCE_FILTER);
if (refs != null && refs.length == 1) {
Location location = (Location) ctx.getService(refs[0]);
if (location != null) {
IPath instancePath = new Path(new File(location.getURL().getFile()).toString());
ctx.ungetService(refs[0]);
return instancePath.append(".metadata/.plugins").append(Policy.PI_FILE_SYSTEM); //$NON-NLS-1$
}
}
}
}
} catch (InvalidSyntaxException e) {
Policy.log(IStatus.INFO, null, e);
//fall through below and use user home
}
//just put the cache in the user home directory
return Path.fromOSString(System.getProperty("user.home")); //$NON-NLS-1$
// Platform.getStateLocation(Platform.getBundle(Policy.PI_FILE_SYSTEM));
}
public Activator() {
instance = this;
}
public void start(BundleContext aContext) throws Exception {
this.context = aContext;
}
public void stop(BundleContext aContext) throws Exception {
//nothing to do
}
}