EmulatorCommandReceiver.java

/**
 *  BlueCove - Java library for Bluetooth
 *  Copyright (C) 2008-2009 Michael Lifshits
 *  Copyright (C) 2008-2009 Vlad Skarzhevskyy
 *
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.
 *
 *  @author vlads
 *  @version $Id$
 */
package com.intel.bluetooth;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;

import com.intel.bluetooth.emu.DeviceCommand;

/**
 * 
 */
class EmulatorCommandReceiver extends Thread {

	private EmulatorLocalDevice localDevice;

	private boolean stoped = false;

	EmulatorCommandReceiver(EmulatorLocalDevice localDevice) {
		super("BlueCoveEmulatorCommandReceiver");
		this.localDevice = localDevice;
	}

	void shutdownReceiver() {
		stoped = true;
	}

	public void run() {
		while (!stoped) {
			DeviceCommand cmd = localDevice.getDeviceManagerService().pollCommand(this.localDevice.getAddress());
			if (cmd == null) {
				break;
			}
			execute(cmd);
		}
	}

	private void execute(DeviceCommand command) {
		switch (command.getType()) {
		case keepAlive:
			break;
		case chagePowerState:
			localDevice.setLocalDevicePower((Boolean) command.getParameters()[0]);
			break;
		case updateLocalDeviceProperties:
			localDevice.updateLocalDeviceProperties();
			break;
		case createThreadDumpStdOut:
			threadDump(false);
			break;
		case createThreadDumpFile:
			threadDump(true);
			break;
		case shutdownJVM:
			System.exit(0);
			break;

		}
	}

	static void threadDump(boolean useFile) {
		SimpleDateFormat fmt = new SimpleDateFormat("MM-dd_HH-mm-ss");
		OutputStreamWriter out = null;
		try {
			File file = null;
			if (useFile) {
				file = new File("ThreadDump-" + fmt.format(new Date()) + ".log");
				out = new FileWriter(file);
			} else {
				out = new OutputStreamWriter(System.out);
			}
			Map<Thread, StackTraceElement[]> traces = Thread.getAllStackTraces();
			for (Iterator<Map.Entry<Thread, StackTraceElement[]>> iterator = traces.entrySet().iterator(); iterator
					.hasNext();) {
				Map.Entry<Thread, StackTraceElement[]> entry = iterator.next();
				Thread thread = entry.getKey();
				out.write("Thread= " + thread.getName() + " " + (thread.isDaemon() ? "daemon" : "") + " prio="
						+ thread.getPriority() + "id=" + thread.getId() + " " + thread.getState());
				out.write("\n");

				StackTraceElement[] ste = entry.getValue();
				for (int i = 0; i < ste.length; i++) {
					out.write("\t");
					out.write(ste[i].toString());
					out.write("\n");
				}
				out.write("---------------------------------\n");
			}
			out.close();
			out = null;
			if (useFile) {
				System.err.println("Full ThreadDump created " + file.getAbsolutePath());
			}
		} catch (IOException ignore) {
		} finally {
			try {
				out.close();
			} catch (IOException ignore) {
			}

		}
	}
}