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The source code

// $Header: /home/cvs/jakarta-jmeter/src/core/org/apache/jmeter/gui/action/RemoteStart.java,v 1.14 2004/02/12 23:59:02 sebb Exp $
/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
*/

package org.apache.jmeter.gui.action;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import javax.swing.JOptionPane;

import org.apache.jmeter.engine.ClientJMeterEngine;
import org.apache.jmeter.engine.JMeterEngine;
import org.apache.jmeter.engine.JMeterEngineException;
import org.apache.jmeter.gui.GuiPackage;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.collections.HashTree;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;

/**
 * @author  Michael Stover
 * @author  Drew Gulino
 * @version $Revision: 1.14 $ Last updated $Date: 2004/02/12 23:59:02 $
 */
public class RemoteStart extends AbstractAction
{
    transient private static Logger log = LoggingManager.getLoggerForClass();

    private static Set commands = new HashSet();
    static
    {
        commands.add("remote_start");
        commands.add("remote_stop");
        commands.add("remote_start_all");
        commands.add("remote_stop_all");
        commands.add("remote_exit");
		commands.add("remote_exit_all");
    }

    private Map remoteEngines = new HashMap();

    public RemoteStart()
    {
    }

    public void doAction(ActionEvent e)
    {
        String name = ((Component) e.getSource()).getName();
        if(name != null)
        {
            name = name.trim();
        }
        String action = e.getActionCommand();
        if (action.equals("remote_stop"))
        {
            doRemoteStop(name);
        }
        else if (action.equals("remote_start"))
        {
            doRemoteInit(name);
            doRemoteStart(name);
        }
        else if (action.equals("remote_start_all"))
        {
            String remote_hosts_string =
                JMeterUtils.getPropDefault("remote_hosts", "127.0.0.1");
            java.util.StringTokenizer st =
                new java.util.StringTokenizer(remote_hosts_string, ",");
            while (st.hasMoreElements())
            {
                String el = (String) st.nextElement();
                doRemoteInit(el.trim());
            }
            st = new java.util.StringTokenizer(remote_hosts_string, ",");
            while (st.hasMoreElements())
            {
                String el = (String) st.nextElement();
                doRemoteStart(el.trim());
            }
        }
        else if (action.equals("remote_stop_all"))
        {
            String remote_hosts_string =
                JMeterUtils.getPropDefault("remote_hosts", "127.0.0.1");
            java.util.StringTokenizer st =
                new java.util.StringTokenizer(remote_hosts_string, ",");
            while (st.hasMoreElements())
            {
                String el = (String) st.nextElement();
                doRemoteStop(el.trim());
            }
        }
		else if (action.equals("remote_exit"))
		{
			doRemoteExit(name);
		}
		else if (action.equals("remote_exit_all"))
		{
			String remote_hosts_string =
				JMeterUtils.getPropDefault("remote_hosts", "127.0.0.1");
			java.util.StringTokenizer st =
				new java.util.StringTokenizer(remote_hosts_string, ",");
			while (st.hasMoreElements())
			{
				String el = (String) st.nextElement();
				doRemoteExit(el.trim());
			}
		}
    }

    /**
     * Stops a remote testing engine
     * 
     * @param name the DNS name or IP address of the remote testing engine
     * 
     */
    private void doRemoteStop(String name)
    {
        GuiPackage.getInstance().getMainFrame().showStoppingMessage(name);
        JMeterEngine engine = (JMeterEngine) remoteEngines.get(name);
        engine.stopTest();
    }

	/**
	 * Exits a remote testing engine
	 * 
	 * @param name the DNS name or IP address of the remote testing engine
	 * 
	 */
	private void doRemoteExit(String name)
	{
		JMeterEngine engine = (JMeterEngine) remoteEngines.get(name);
		if (engine == null) return;
		//GuiPackage.getInstance().getMainFrame().showStoppingMessage(name);
		engine.exit();
	}

    /**
     * Starts a remote testing engine
     * 
     * @param name the DNS name or IP address of the remote testing engine
     * 
     */
    private void doRemoteStart(String name)
    {
        JMeterEngine engine = (JMeterEngine) remoteEngines.get(name);
        if (engine == null)
        {
            try
            {
                engine = new ClientJMeterEngine(name);
                remoteEngines.put(name, engine);
            }
            catch (Exception ex)
            {
                log.error("", ex);
                JMeterUtils.reportErrorToUser("Bad call to remote host");
                return;
            }
        }
        else
        {
            engine.reset();
        }
        startEngine(engine, name);
    }
    /**
     * Initializes remote engines
     */
    private void doRemoteInit(String name)
    {
        JMeterEngine engine = (JMeterEngine) remoteEngines.get(name);
        if (engine == null)
        {
            try
            {
                engine = new ClientJMeterEngine(name);
                remoteEngines.put(name, engine);
            }
            catch (Exception ex)
            {
                log.error("", ex);
                JMeterUtils.reportErrorToUser("Bad call to remote host");
                return;
            }
        }
        else
        {
            engine.reset();
        }
        initEngine(engine, name);
    }

    public Set getActionNames()
    {
        return commands;
    }

    /**
     * Initializes test on engine.
     *
     * @param engine    remote engine object
     * @param host      host the engine will run on
     */
    private void initEngine(JMeterEngine engine, String host)
    {
        GuiPackage gui = GuiPackage.getInstance();
        HashTree testTree = gui.getTreeModel().getTestPlan();
        convertSubTree(testTree);
        testTree.add(testTree.getArray()[0], gui.getMainFrame());
        engine.configure(testTree);
    }

    /**
     * Starts the test on the remote engine.
     */
    private void startEngine(JMeterEngine engine, String host)
    {
        GuiPackage gui = GuiPackage.getInstance();
        try
        {
            engine.runTest();
        }
        catch (JMeterEngineException e)
        {
            JOptionPane.showMessageDialog(
                gui.getMainFrame(),
                e.getMessage(),
                JMeterUtils.getResString("Error Occurred"),
                JOptionPane.ERROR_MESSAGE);
        }
    }
}
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