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/*******************************************************************************
* Copyright (c) 2011 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.terminals.core.launcher;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.tcf.services.ITerminals;
import org.eclipse.tcf.services.ITerminals.TerminalContext;
import org.eclipse.tcf.te.tcf.terminals.core.activator.CoreBundleActivator;
import org.eclipse.tcf.te.tcf.terminals.core.interfaces.launcher.ITerminalsContextAwareListener;
import org.eclipse.tcf.te.tcf.terminals.core.interfaces.tracing.ITraceIds;
import org.eclipse.tcf.te.runtime.events.EventManager;
import org.eclipse.tcf.te.runtime.interfaces.callback.ICallback;
/**
* Remote process processes listener implementation.
*/
public class TerminalsListener implements ITerminals.TerminalsListener, ITerminalsContextAwareListener {
// The parent terminals launcher instance
private final TerminalsLauncher parent;
// The remote terminals context
private ITerminals.TerminalContext context;
// A flag to remember if exited(...) got called
private boolean exitedCalled = false;
/**
* Constructor.
*
* @param parent The parent terminals launcher instance. Must not be <code>null</code>
*/
public TerminalsListener(TerminalsLauncher parent) {
Assert.isNotNull(parent);
this.parent = parent;
}
/**
* Returns the parent terminals launcher instance.
*
* @return The parent terminals launcher instance.
*/
protected final TerminalsLauncher getParent() {
return parent;
}
/**
* Dispose the terminals listener instance.
* <p>
* <b>Note:</b> The terminals listener is removed from the terminals service by the parent remote terminals launcher.
*
* @param callback The callback to invoke if the dispose finished or <code>null</code>.
*/
public void dispose(ICallback callback) {
// If exited(...) hasn't been called yet, but dispose is invoked,
// send a ... event to signal listeners that a terminated event won't come.
if (!exitedCalled && context != null) {
TerminalsStateChangeEvent event = new TerminalsStateChangeEvent(context, TerminalsStateChangeEvent.EVENT_LOST_COMMUNICATION, Boolean.FALSE, Boolean.TRUE, -1);
EventManager.getInstance().fireEvent(event);
}
// Invoke the callback
if (callback != null) callback.done(this, Status.OK_STATUS);
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.terminals.core.interfaces.launcher.ITerminalsContextAwareListener#setTerminalsContext(org.eclipse.tcf.services.ITerminals.TerminalContext)
*/
@Override
public void setTerminalsContext(TerminalContext context) {
Assert.isNotNull(context);
this.context = context;
if (CoreBundleActivator.getTraceHandler().isSlotEnabled(0, ITraceIds.TRACE_TERMINALS_LISTENER)) {
CoreBundleActivator.getTraceHandler().trace("Terminals context set to: id='" + context.getID() + "', PTY type='" + context.getPtyType() + "'", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
0, ITraceIds.TRACE_TERMINALS_LISTENER,
IStatus.INFO, getClass());
}
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.terminals.core.interfaces.launcher.ITerminalsContextAwareListener#getTerminalsContext()
*/
@Override
public TerminalContext getTerminalsContext() {
return context;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.services.ITerminals.TerminalsListener#exited(java.lang.String, int)
*/
@Override
public void exited(String terminalId, int exitCode) {
if (CoreBundleActivator.getTraceHandler().isSlotEnabled(0, ITraceIds.TRACE_TERMINALS_LISTENER)) {
CoreBundleActivator.getTraceHandler().trace("Terminals context terminated: id='" + terminalId + "', exitCode='" + exitCode + "'", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
0, ITraceIds.TRACE_TERMINALS_LISTENER,
IStatus.INFO, getClass());
}
// If the exited terminal is the one we are monitoring,
// --> initiate the disposal of the parent remote terminal launcher
ITerminals.TerminalContext context = getTerminalsContext();
if (context != null && terminalId != null && terminalId.equals(context.getID())) {
// Exited got called for the associated terminal context
exitedCalled = true;
// Send a notification
TerminalsStateChangeEvent event = createRemoteTerminalStateChangeEvent(context, exitCode);
EventManager.getInstance().fireEvent(event);
// Dispose the parent remote process launcher
getParent().dispose();
}
}
/**
* Creates a new remote terminal state change event instance.
*
* @param context The terminal context. Must not be <code>null</code>.
* @return The event instance or <code>null</code>.
*/
protected TerminalsStateChangeEvent createRemoteTerminalStateChangeEvent(ITerminals.TerminalContext context, int exitCode) {
Assert.isNotNull(context);
return new TerminalsStateChangeEvent(context, TerminalsStateChangeEvent.EVENT_TERMINAL_TERMINATED, Boolean.FALSE, Boolean.TRUE, exitCode);
}
/* (non-Javadoc)
* @see org.eclipse.tcf.services.ITerminals.TerminalsListener#winSizeChanged(java.lang.String, int, int)
*/
@Override
public void winSizeChanged(String terminalId, int newWidth, int newHeight) {
if (CoreBundleActivator.getTraceHandler().isSlotEnabled(0, ITraceIds.TRACE_TERMINALS_LISTENER)) {
CoreBundleActivator.getTraceHandler().trace("Terminals context window size changed: id='" + terminalId + "', newWidth='" + newWidth + "', newHeight='" + newHeight + "'", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
0, ITraceIds.TRACE_TERMINALS_LISTENER,
IStatus.INFO, getClass());
}
// Pass on to the terminal widget
}
}
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