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/*******************************************************************************
* Copyright (c) 2014 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.locator.steps;
import java.util.Timer;
import java.util.TimerTask;
import java.util.concurrent.atomic.AtomicBoolean;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.osgi.util.NLS;
import org.eclipse.tcf.protocol.IChannel;
import org.eclipse.tcf.protocol.IToken;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.services.IDiagnostics;
import org.eclipse.tcf.te.core.interfaces.IConnectable;
import org.eclipse.tcf.te.runtime.interfaces.callback.ICallback;
import org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer;
import org.eclipse.tcf.te.runtime.stepper.StepperAttributeUtil;
import org.eclipse.tcf.te.runtime.stepper.interfaces.IFullQualifiedId;
import org.eclipse.tcf.te.runtime.stepper.interfaces.IStepContext;
import org.eclipse.tcf.te.tcf.core.interfaces.steps.ITcfStepAttributes;
import org.eclipse.tcf.te.tcf.locator.activator.CoreBundleActivator;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerNode;
import org.eclipse.tcf.te.tcf.locator.nls.Messages;
import org.eclipse.tcf.te.tcf.locator.utils.SimulatorUtils;
/**
* Start ping timer step implementation.
*/
public class StartPingTimerStep extends AbstractPeerNodeStep {
/**
* Constructor.
*/
public StartPingTimerStep() {
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.runtime.stepper.interfaces.IExtendedStep#validateExecute(org.eclipse.tcf.te.runtime.stepper.interfaces.IStepContext, org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer, org.eclipse.tcf.te.runtime.stepper.interfaces.IFullQualifiedId, org.eclipse.core.runtime.IProgressMonitor)
*/
@Override
public void validateExecute(final IStepContext context, final IPropertiesContainer data, final IFullQualifiedId fullQualifiedId, final IProgressMonitor monitor) throws CoreException {
IChannel channel = (IChannel)StepperAttributeUtil.getProperty(ITcfStepAttributes.ATTR_CHANNEL, fullQualifiedId, data);
if (channel == null || channel.getState() != IChannel.STATE_OPEN) {
throw new CoreException(new Status(IStatus.ERROR, CoreBundleActivator.getUniqueIdentifier(), "missing or closed channel")); //$NON-NLS-1$
}
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.runtime.stepper.interfaces.IStep#execute(org.eclipse.tcf.te.runtime.stepper.interfaces.IStepContext, org.eclipse.tcf.te.runtime.interfaces.properties.IPropertiesContainer, org.eclipse.tcf.te.runtime.stepper.interfaces.IFullQualifiedId, org.eclipse.core.runtime.IProgressMonitor, org.eclipse.tcf.te.runtime.interfaces.callback.ICallback)
*/
@Override
public void execute(final IStepContext context, final IPropertiesContainer data, final IFullQualifiedId fullQualifiedId, final IProgressMonitor monitor, final ICallback callback) {
SimulatorUtils.Result result = SimulatorUtils.getSimulatorService(getActivePeerModelContext(context, data, fullQualifiedId));
if (result == null) {
final IChannel channel = (IChannel)StepperAttributeUtil.getProperty(ITcfStepAttributes.ATTR_CHANNEL, fullQualifiedId, data);
Protocol.invokeLater(new Runnable() {
@Override
public void run() {
final IPeerNode peerNode = getActivePeerModelContext(context, data, fullQualifiedId);
final String name = peerNode.getName();
final IDiagnostics diagnostics = channel.getRemoteService(IDiagnostics.class);
if (diagnostics != null) {
final Timer pingTimer = new Timer(name + " ping"); //$NON-NLS-1$
TimerTask pingTask = new TimerTask() {
final Timer thisTimer = pingTimer;
final AtomicBoolean running = new AtomicBoolean(false);
@Override
public void run() {
try {
if (!running.get()) {
running.set(true);
Protocol.invokeLater(new Runnable() {
@Override
public void run() {
try {
if (peerNode.getConnectState() == IConnectable.STATE_CONNECTED) {
diagnostics.echo("ping", new IDiagnostics.DoneEcho() { //$NON-NLS-1$
@Override
public void doneEcho(IToken token, Throwable error, String s) {
running.set(false);
if (error != null) {
thisTimer.cancel();
}
}
});
}
else {
thisTimer.cancel();
}
}
catch (Throwable e) {}
}
});
}
}
catch (Throwable e) {}
}
};
pingTimer.schedule(pingTask, 10000, 10000);
}
else if (Platform.inDebugMode()) {
Platform.getLog(CoreBundleActivator.getDefault().getBundle()).log(new Status(IStatus.WARNING,
CoreBundleActivator.getUniqueIdentifier(),
NLS.bind(Messages.StartPingTimerStep_warning_noDiagnosticsService, name)));
}
}
});
}
callback(data, fullQualifiedId, callback, Status.OK_STATUS, null);
}
}
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