org.rifidi.emulator.io.comm.serial.SerialCommunicationOutgoingMessageHandler.java Source code

Introduction

Here is the source code for org.rifidi.emulator.io.comm.serial.SerialCommunicationOutgoingMessageHandler.java

Source

/*
 *  SerialCommunicationOutgoingMessageHandler.java
 *
 *  Project:      RiFidi Emulator - A Software Simulation Tool for RFID Devices
 *  http://www.rifidi.org
 *  http://rifidi.sourceforge.net
 *  Copyright:       Pramari LLC and the Rifidi Project
 *  License:      Lesser GNU Public License (LGPL)
 *  http://www.opensource.org/licenses/lgpl-license.html
 */
package org.rifidi.emulator.io.comm.serial;

import java.io.IOException;
import java.io.OutputStream;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rifidi.emulator.common.DataBuffer;
import org.rifidi.emulator.common.DataBufferInterruptedException;

/**
 * This class handles the outgoing messages for the SerialCommunication module.
 * 
 * @author Matthew Dean
 * @since <$INITIAL_VERSION$>
 * @version <$CURRENT_VERSION$>
 */
public class SerialCommunicationOutgoingMessageHandler implements Runnable {

    /**
     * Message logger
     */
    private static Log logger = LogFactory.getLog(SerialCommunicationOutgoingMessageHandler.class);

    private SerialCommunication host;

    private OutputStream serialOut;

    public SerialCommunicationOutgoingMessageHandler(SerialCommunication host) {
        this.host = host;
        serialOut = host.getSerialOutputStream();
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Runnable#run()
     */
    public void run() {
        byte[] message = null;
        DataBuffer<byte[]> newBuffer = host.getSendBuffer();

        boolean keepRunning = true;

        // As long as no errors occur, keep going
        while (keepRunning) {

            try {
                // Take the next message from the buffer
                logger.debug("Waiting for message");
                message = newBuffer.takeNextFromBuffer();
                String y = "";
                for (int i : message) {
                    y += String.valueOf(i);
                }
                logger.debug("Message recieved, preparing to send: y=" + y);
            } catch (DataBufferInterruptedException e) {
                logger.error(e.getMessage());
                keepRunning = false;
            }
            if (keepRunning) {
                try {
                    // Write it out to the stream
                    String x = "";
                    for (byte i : message) {
                        x += String.format("%1$02x", i) + " ";
                    }
                    serialOut.write(message);
                    logger.debug("Sent message: x=" + x);
                    this.host.getConsoleLogger().info("<OUTPUT> " + x + "</OUTPUT>");
                } catch (IOException e) {
                    logger.error(e.getMessage());
                    keepRunning = false;
                }
            }
        }
    }
}