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/*******************************************************************************
* Copyright (c) 2003, 2010 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
* Rob Harrop - SpringSource Inc. (bug 247522)
*******************************************************************************/
package org.eclipse.osgi.internal.resolver;
import org.eclipse.osgi.framework.internal.core.*;
import org.eclipse.osgi.service.resolver.*;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
// this class provides synchronous access to resolve and add/remove/update bundle for the framework
public class SystemState extends StateImpl {
private final Framework framework;
public SystemState(BundleContext context) {
this.framework = context == null ? null : ((BundleContextImpl) context).getFramework();
}
@Override
boolean basicAddBundle(BundleDescription description) {
if (framework != null && description.getUserObject() == null) {
// We always set the user object to a BundleReference object;
// This allows the resolver to implement BundleRevisions for
// the resolver hooks.
AbstractBundle bundle = framework.getBundle(description.getBundleId());
description.setUserObject(bundle != null ? bundle.getBundleData() : null);
}
return super.basicAddBundle(description);
}
/**
* @throws BundleException
*/
public StateDelta compare(State state) throws BundleException {
// we don't implement this (no big deal: the system state is private to the framework)
throw new UnsupportedOperationException();
}
}
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