motej.OutgoingThread.java Source code

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Here is the source code for motej.OutgoingThread.java

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/*
 * Copyright 2007-2008 Volker Fritzsch
 *
 * 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 motej;

import java.io.IOException;
import java.util.concurrent.ConcurrentLinkedQueue;

import javax.bluetooth.L2CAPConnection;
import javax.microedition.io.Connector;

import motej.request.MoteRequest;
import motej.request.PlayerLedRequest;
import motej.request.RumbleRequest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * 
 * <p>
 * @author <a href="mailto:vfritzsch@users.sourceforge.net">Volker Fritzsch</a>
 */
class OutgoingThread extends Thread {

    private static final long THREAD_SLEEP = 10l;

    private Log log = LogFactory.getLog(OutgoingThread.class);

    private volatile boolean active;

    private L2CAPConnection outgoing;

    private ConcurrentLinkedQueue<MoteRequest> requestQueue;

    private byte ledByte;

    private long rumbleMillis = Long.MIN_VALUE;

    protected OutgoingThread(String btaddress) throws IOException, InterruptedException {
        super("OutgoingWiimoteThread:" + btaddress);
        outgoing = (L2CAPConnection) Connector.open(
                "btl2cap://" + btaddress + ":11;authenticate=false;encrypt=false;master=false", Connector.WRITE);

        requestQueue = new ConcurrentLinkedQueue<MoteRequest>();
        Thread.sleep(THREAD_SLEEP);
        active = true;
    }

    public void disconnect() {
        active = false;
    }

    public void run() {
        while (active) {
            try {
                if (rumbleMillis > 0) {
                    rumbleMillis -= THREAD_SLEEP;
                }
                if (rumbleMillis == 0) {
                    rumbleMillis = Long.MIN_VALUE;
                    outgoing.send(RumbleRequest.getStopRumbleBytes(ledByte));
                    Thread.sleep(THREAD_SLEEP);
                    continue;
                }
                if (requestQueue.peek() != null) {
                    MoteRequest request = requestQueue.poll();
                    if (request instanceof PlayerLedRequest) {
                        ledByte = ((PlayerLedRequest) request).getLedByte();
                    }
                    if (request instanceof RumbleRequest) {
                        ((RumbleRequest) request).setLedByte(ledByte);
                        rumbleMillis = ((RumbleRequest) request).getMillis();
                    }
                    outgoing.send(request.getBytes());
                }
                Thread.sleep(THREAD_SLEEP);
            } catch (InterruptedException ex) {
                ex.printStackTrace();
            } catch (IOException ex) {
                System.out.println("connection closed?");
                active = false;
            }
        }
        try {
            outgoing.close();
        } catch (IOException ex) {
            log.error(ex);
        }
    }

    public void sendRequest(MoteRequest request) {
        requestQueue.add(request);
    }

}