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/*******************************************************************************
* Copyright (c) 2012 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.osgi.compatibility.state;
import java.util.*;
import org.eclipse.osgi.container.*;
import org.eclipse.osgi.internal.framework.BundleContextImpl;
import org.eclipse.osgi.internal.framework.EquinoxContainer;
import org.eclipse.osgi.internal.module.ResolverImpl;
import org.eclipse.osgi.internal.resolver.StateHelperImpl;
import org.eclipse.osgi.internal.resolver.StateObjectFactoryImpl;
import org.eclipse.osgi.service.resolver.*;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
public class PlatformAdminImpl implements PlatformAdmin {
private final StateHelper stateHelper = new StateHelperImpl();
private final StateObjectFactory factory = new StateObjectFactoryImpl();
private final Object monitor = new Object();
private EquinoxContainer equinoxContainer;
private State systemState;
@SuppressWarnings("unused")
// this is used by DS to activate us
private void activate(BundleContext context) {
synchronized (this.monitor) {
equinoxContainer = ((BundleContextImpl) context).getContainer();
}
context.registerService(PlatformAdmin.class, this, null);
}
@Override
public State getState() {
return getState(true);
}
@Override
public State getState(boolean mutable) {
if (mutable) {
return factory.createState(getSystemState());
}
return new ReadOnlyState(this);
}
State getSystemState() {
synchronized (this.monitor) {
if (systemState == null) {
systemState = createSystemState();
}
return systemState;
}
}
long getTimeStamp() {
synchronized (this.monitor) {
return equinoxContainer.getStorage().getModuleDatabase().getTimestamp();
}
}
private State createSystemState() {
State state = factory.createState(true);
StateConverter converter = new StateConverter(state);
ModuleDatabase database = equinoxContainer.getStorage().getModuleDatabase();
database.lockRead();
try {
List<Module> modules = equinoxContainer.getStorage().getModuleContainer().getModules();
for (Module module : modules) {
ModuleRevision current = module.getCurrentRevision();
BundleDescription description = converter.createDescription(current);
state.addBundle(description);
state.setPlatformProperties(asDictionary(equinoxContainer.getConfiguration().asMap()));
}
state.setTimeStamp(database.getTimestamp());
// TODO add hooks to get the resolution correct
// TODO add listeners to keep state copy in sync
} finally {
database.unlockRead();
}
return state;
}
private Dictionary<String, String> asDictionary(Map<String, String> map) {
return new Hashtable<String, String>(map);
}
@Override
public StateHelper getStateHelper() {
return StateHelperImpl.getInstance();
}
/**
* @throws BundleException
*/
@Override
public void commit(State state) throws BundleException {
throw new UnsupportedOperationException();
}
@Deprecated
@Override
public Resolver getResolver() {
return createResolver();
}
@Override
public Resolver createResolver() {
return new ResolverImpl(false);
}
@Override
public StateObjectFactory getFactory() {
return factory;
}
@Override
public void addDisabledInfo(DisabledInfo disabledInfo) {
throw new UnsupportedOperationException();
}
@Override
public void removeDisabledInfo(DisabledInfo disabledInfo) {
throw new UnsupportedOperationException();
}
}
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