AgentLauncher.java

/*******************************************************************************
 * 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.tests.tcf;

import java.io.InputStream;

import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IPath;
import org.eclipse.tcf.te.runtime.interfaces.IDisposable;
import org.eclipse.tcf.te.runtime.processes.ProcessLauncher;
import org.eclipse.tcf.te.runtime.processes.ProcessOutputReaderThread;
import org.eclipse.tcf.te.runtime.utils.Host;

/**
 * TCF tests agent launcher implementation.
 */
public class AgentLauncher extends ProcessLauncher implements IDisposable {
	// The path of the agent to launch
	private final IPath path;
	// The process handle
	private Process process;
	// The process output reader
	private ProcessOutputReaderThread outputReader;

	/**
	 * Constructor.
	 *
	 * @param path The agent path. Must not be <code>null</code>.
	 */
	public AgentLauncher(IPath path) {
		super(null, null, 0);
		Assert.isNotNull(path);
		this.path = path;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.tcf.te.runtime.interfaces.IDisposable#dispose()
	 */
	@Override
	public void dispose() {
		if (process != null) {
			process.destroy();
			process = null;
		}
	}

	/**
	 * Returns the process handle.
	 *
	 * @return The process handle or <code>null</code>.
	 */
	public Process getProcess() {
		return process;
	}

	/**
	 * Returns the process output reader.
	 *
	 * @return The process output reader or <code>null</code>.
	 */
	public ProcessOutputReaderThread getOutputReader() {
		return outputReader;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.tcf.te.runtime.processes.ProcessLauncher#launch()
	 */
	@Override
	public void launch() throws Throwable {
		IPath dir = path.removeLastSegments(1);
		String cmd = Host.isWindowsHost() ? path.toOSString() : "./" + path.lastSegment(); //$NON-NLS-1$
		process = Runtime.getRuntime().exec(new String[] { cmd, "-S" }, null, dir.toFile()); //$NON-NLS-1$

		// Launch the process output reader
		outputReader = new ProcessOutputReaderThread(path.lastSegment(), new InputStream[] { process.getInputStream() });
		outputReader.start();
	}

}