baseagentxlet.java.svn-base

来自「cqME :java framework for TCK test.」· SVN-BASE 代码 · 共 118 行

/*
 * $Id$
 *
 * Copyright 1996-2007 Sun Microsystems, Inc. All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 only, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License version 2 for more details (a copy is
 * included at /legal/license.txt).
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this work; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
 * Clara, CA 95054 or visit www.sun.com if you need additional
 * information or have any questions.
 *
 */

package com.sun.tck.xlet.agent;

import com.sun.tck.j2me.agent.AgentMain;
import java.io.PrintStream;
import javax.microedition.xlet.Xlet;
import javax.microedition.xlet.XletContext;
import javax.microedition.xlet.XletStateChangeException;

public class BaseAgentXlet extends AgentMain implements Xlet, Runnable {
    protected String agentArgs[] = null;
    protected Thread agentThread = null;  

    /**
     * Does nothing for AgentXlet.
     */
    public synchronized void destroyXlet(boolean unconditional)
            throws XletStateChangeException {}

    /**
     * Reads arguments from XletContext.getXletProperty(XletContext.ARGS);
     * @throws XletStateChangeException if the Xlet cannot be initialized.
     */
    public synchronized void initXlet(XletContext xc)
            throws XletStateChangeException {

        agentArgs = (String[]) xc.getXletProperty(XletContext.ARGS);

    }

    /**
     * Does nothing for AgentXlet.
     */
    public synchronized void pauseXlet() {}

    /**
     * Starts Agent's execution thread.
     */
    public synchronized void startXlet() throws XletStateChangeException {

        if (agentThread == null) {
            agentThread = new Thread(this);
            agentThread.start();
        }
    }

    /**
     * Passes agentArgs to AgentMain(run).
     */
    public void run() {
        try {
            int status = run(agentArgs);
            if (status != 0) {
                System.err.println("Error.");
            }
        } catch (IllegalArgumentException e) {
            System.err.println("Error: Bad arguments");
            System.err.println(e.getMessage());
            System.err.println();
            usage(System.err);
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("Unexpected exception " + e);
        }
    }

    /**
     * Displays the set of options for configuring AgentXlet.
     * @param out a stream to which to write the information
     */
    public void usage(PrintStream out) {
        String className = getClass().getName();
        out.println("Options for configuring AgentXlet :");
        out.println(optionsHelp());
        out.println("Options are passed as string array value of attribute XletContext.ARGS.");
        out.println("Each item (option name or value) must be single element of this array. ");
    }

    /**
     *  Deprecated entry point for Xlet application model.
     */
    public static void main(String[] args) {
        BaseAgentXlet dumpAgent = new BaseAgentXlet();
        System.err.println("AgentXlet is not designed to run through the command line.");
        System.err.println("It should be started by an implementation-specific Application Manager."); 
        System.err.println();
        dumpAgent.usage(System.err);
        System.exit(1);
    }
}