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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.processes.core.model.runtime.services;
import org.eclipse.core.runtime.Assert;
import org.eclipse.tcf.protocol.IChannel;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.services.IProcesses;
import org.eclipse.tcf.services.IRunControl;
import org.eclipse.tcf.te.tcf.core.Tcf;
import org.eclipse.tcf.te.tcf.core.interfaces.IChannelManager;
import org.eclipse.tcf.te.tcf.core.model.interfaces.services.IModelChannelService;
import org.eclipse.tcf.te.tcf.core.model.services.AbstractModelService;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerNode;
import org.eclipse.tcf.te.tcf.processes.core.model.interfaces.runtime.IRuntimeModel;
import org.eclipse.tcf.te.tcf.processes.core.model.runtime.listener.RuntimeModelProcessServiceListener;
import org.eclipse.tcf.te.tcf.processes.core.model.runtime.listener.RuntimeModelRunControlServiceListener;
/**
* Runtime model channel service implementation.
*/
public class RuntimeModelChannelService extends AbstractModelService<IRuntimeModel> implements IModelChannelService {
// Reference to the channel instance
/* default */ IChannel channel;
// Reference to the process service listener
/* default */ IProcesses.ProcessesListener serviceListener;
// Reference to the run control service listener
/* default */ IRunControl.RunControlListener runControlListener;
/**
* Constructor.
*
* @param model The parent model. Must not be <code>null</code>.
*/
public RuntimeModelChannelService(IRuntimeModel model) {
super(model);
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.core.model.interfaces.services.IModelChannelService#getChannel()
*/
@Override
public IChannel getChannel() {
Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$
return channel;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.core.model.interfaces.services.IModelChannelService#openChannel(org.eclipse.tcf.te.tcf.core.model.interfaces.services.IModelChannelService.DoneOpenChannel)
*/
@Override
public void openChannel(final DoneOpenChannel done) {
Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$
// If a channel is associated which is in open state, return it
if (channel != null && channel.getState() == IChannel.STATE_OPEN) {
done.doneOpenChannel(null, channel);
return;
}
// Get the peer model node
IPeerNode node = getModel().getPeerModel();
if (node != null) {
// Open a new channel to the remote peer
Tcf.getChannelManager().openChannel(node.getPeer(), null, new IChannelManager.DoneOpenChannel() {
@Override
public void doneOpenChannel(Throwable error, IChannel channel) {
// Remember the channel instance
RuntimeModelChannelService.this.channel = channel;
// Attach the process service listener instance
if (error == null && serviceListener == null) {
IProcesses service = channel.getRemoteService(IProcesses.class);
if (service != null) {
serviceListener = new RuntimeModelProcessServiceListener(getModel());
service.addListener(serviceListener);
}
}
// Attach the run control service listener instance
if (error == null && runControlListener == null) {
IRunControl service = channel.getRemoteService(IRunControl.class);
if (service != null) {
runControlListener = new RuntimeModelRunControlServiceListener(getModel());
service.addListener(runControlListener);
}
}
done.doneOpenChannel(error, channel);
}
});
}
else {
done.doneOpenChannel(new NullPointerException("Peer model node is null"), null); //$NON-NLS-1$
}
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.core.model.interfaces.services.IModelChannelService#closeChannel()
*/
@Override
public void closeChannel() {
Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$
if (channel != null) {
if (serviceListener != null) {
IProcesses service = channel.getRemoteService(IProcesses.class);
if (service != null) { service.removeListener(serviceListener); serviceListener = null; }
}
Tcf.getChannelManager().closeChannel(channel);
channel = null;
}
}
}
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