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/*******************************************************************************
* Copyright (c) 2012 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.launch.core.internal.adapters;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.runtime.IAdapterFactory;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.runtime.interfaces.IDisposable;
import org.eclipse.tcf.te.runtime.stepper.interfaces.IStepContext;
import org.eclipse.tcf.te.tcf.locator.interfaces.IModelListener;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
import org.eclipse.tcf.te.tcf.locator.listener.ModelAdapter;
import org.eclipse.tcf.te.tcf.locator.model.Model;
/**
* Adapter factory implementation.
*/
public class AdapterFactory implements IAdapterFactory {
// Maintain a map of step context adapters per peer model
/* default */ Map<IPeerModel, IStepContext> adapters = new HashMap<IPeerModel, IStepContext>();
private static final Class<?>[] CLASSES = new Class[] {
IStepContext.class
};
/**
* Constructor.
*/
public AdapterFactory() {
final IModelListener listener = new ModelAdapter() {
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.locator.listener.ModelAdapter#locatorModelChanged(org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel, org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel, boolean)
*/
@Override
public void locatorModelChanged(ILocatorModel model, IPeerModel peer, boolean added) {
// If a peer gets removed, remove the step context adapter too
if (peer != null && !added) {
IStepContext adapter = adapters.remove(peer);
if (adapter instanceof IDisposable) ((IDisposable)adapter).dispose();
}
}
};
Runnable runnable = new Runnable() {
@Override
public void run() {
Model.getModel().addListener(listener);
}
};
if (Protocol.isDispatchThread()) runnable.run();
else Protocol.invokeAndWait(runnable);
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.IAdapterFactory#getAdapter(java.lang.Object, java.lang.Class)
*/
@Override
public Object getAdapter(Object adaptableObject, Class adapterType) {
if (adaptableObject instanceof IPeerModel) {
if (IStepContext.class.equals(adapterType)) {
// Lookup the adapter
IStepContext adapter = adapters.get(adaptableObject);
// No adapter yet -> create a new one for this peer
if (adapter == null) {
adapter = new StepContextAdapter((IPeerModel)adaptableObject);
adapters.put((IPeerModel)adaptableObject, adapter);
}
return adapter;
}
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.IAdapterFactory#getAdapterList()
*/
@Override
public Class[] getAdapterList() {
return CLASSES;
}
}
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