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/*******************************************************************************
* Copyright (c) 2012, 2013 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.ui.internal.adapters;
import java.util.concurrent.atomic.AtomicReference;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerNode;
import org.eclipse.tcf.te.tcf.locator.interfaces.services.IPeerModelLookupService;
import org.eclipse.tcf.te.tcf.locator.interfaces.services.IPeerModelQueryService;
import org.eclipse.tcf.te.tcf.locator.interfaces.services.IPeerModelRefreshService;
import org.eclipse.tcf.te.tcf.locator.model.Model;
import org.eclipse.tcf.te.ui.views.editor.EditorInput;
import org.eclipse.ui.IElementFactory;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.internal.part.NullEditorInput;
/**
* The element factory to create an peer model editor input from a memento which is read
* from an external persistent storage and holds a peer id.
*/
@SuppressWarnings("restriction")
public class PeerNodeFactory implements IElementFactory {
/* (non-Javadoc)
* @see org.eclipse.ui.IElementFactory#createElement(org.eclipse.ui.IMemento)
*/
@Override
public IAdaptable createElement(IMemento memento) {
final AtomicReference<IPeerNode> node = new AtomicReference<IPeerNode>();
final String peerId = memento.getString("peerId"); //$NON-NLS-1$
if (peerId != null) {
Runnable runnable = new Runnable() {
@Override
public void run() {
node.set(Model.getModel().getService(IPeerModelLookupService.class).lkupPeerModelById(peerId));
}
};
Assert.isTrue(!Protocol.isDispatchThread());
Protocol.invokeAndWait(runnable);
// If the node is null, this might mean that the peer to restore is a dynamically discovered peer.
// In this case, we have to wait a little bit to give the locator service the chance to sync.
if (node.get() == null) {
// Sleep shortly
try { Thread.sleep(300); } catch (InterruptedException e) {}
// Refresh and try again to query the node
Runnable runnable2 = new Runnable() {
@Override
public void run() {
Model.getModel().getService(IPeerModelRefreshService.class).refresh(null);
node.set(Model.getModel().getService(IPeerModelLookupService.class).lkupPeerModelById(peerId));
}
};
Protocol.invokeAndWait(runnable2);
}
if (node.get() != null) {
IPeerModel model = node.get().getModel();
IPeerModelQueryService queryService = model.getService(IPeerModelQueryService.class);
queryService.queryRemoteServices(node.get());
}
}
return node.get() != null ? new EditorInput(node.get()) : new NullEditorInput();
}
}
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