Examples of programming5.code.RandomIndexGenerator

programming5.net.ReliableProtocolMessage
This class uses a java Random object to generate integers included in one or more given ranges. If the ranges are provided properly, the generator guarantees that every integer (index) belonging to the union of the ranges will have the same probability of being generated in each call to the getRandomIndex method. These integers can then, for example, be used to index subsets of an array or collection, while guaranteeing that no elements outside of the given index ranges will be selected. This implementation may save memory with respect to generating the desired index subset to then select a random element, if the ranges are large. @author Andres Quiroz Hernandez @version 6.9

        super(myServer);
        try {
            accepter = new ServerSocket(0);
        }
  catch (IOException ioe) {
            throw new NetworkException("TCPServerAcceptThread: Couldn't create server socket: " + ioe.getMessage());
        }
    }

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                port = 0;
            }
            accepter = new ServerSocket(port);
        }
  catch (IOException ioe) {
            throw new NetworkException("TCPServerAcceptThread: Couldn't create server socket: " + ioe.getMessage());
        }
    }

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     *arrives from any of the open connections.
     *@return the packet of bytes
     */
    public byte[] receiveBytes() {
        byte[] ret = null;
        ReceiveRequest myRequest = new ReceiveRequest();
        synchronized (receiveRequests) {
            receiveRequests.add(myRequest);
        }
        myRequest.awaitUninterruptibly();
        if (myRequest.isDone()) {
            ret = myRequest.getMessage();
        }
        return ret;
    }

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     *arrives from any of the open connections or timeout occurs.
     *@return the packetof bytes
     */
    public byte[] receiveBytes(long timeout) throws InterruptedException {
        byte[] ret = null;
        ReceiveRequest myRequest = new ReceiveRequest();
        synchronized (receiveRequests) {
            receiveRequests.add(myRequest);
        }
        myRequest.await(timeout, TimeUnit.MILLISECONDS);
        if (myRequest.isDone()) {
            ret = myRequest.getMessage();
        }
        return ret;
    }

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     *@return the message bytes
     */
    @Override
    public byte[] receiveBytes() {
        byte[] ret = null;
        ReceiveRequest myRequest = new ReceiveRequest();
        synchronized (receiveRequests) {
            receiveRequests.add(myRequest);
        }
        myRequest.awaitUninterruptibly();
        if (myRequest.isDone()) {
            ret = myRequest.getMessage();
        }
        return ret;
    }

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     *@return the message bytes
     */
    @Override
    public byte[] receiveBytes(long timeout) throws InterruptedException {
        byte[] ret = null;
        ReceiveRequest myRequest = new ReceiveRequest();
        synchronized (receiveRequests) {
            receiveRequests.add(myRequest);
        }
        myRequest.await(timeout, TimeUnit.MILLISECONDS);
        if (myRequest.isDone()) {
            ret = myRequest.getMessage();
        }
        return ret;
    }

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     *@return the message bytes
     */
    @Override
    public byte[] receiveBytes() {
        byte[] ret = null;
        ReceiveRequest myRequest = new ReceiveRequest();
        synchronized (receiveRequests) {
            receiveRequests.add(myRequest);
        }
        myRequest.awaitUninterruptibly();
        if (myRequest.isDone()) {
            ret = myRequest.getMessage();
        }
        return ret;
    }

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     *@return the message bytes
     */
    @Override
    public byte[] receiveBytes(long timeout) throws InterruptedException {
        byte[] ret = null;
        ReceiveRequest myRequest = new ReceiveRequest();
        synchronized (receiveRequests) {
            receiveRequests.add(myRequest);
        }
        myRequest.await(timeout, TimeUnit.MILLISECONDS);
        if (myRequest.isDone()) {
            ret = myRequest.getMessage();
        }
        return ret;
    }

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        while (!done) {
            try {
                message = client.receive(timeout);
                if (message != null) {
                    try {
                        receivedMsg = new ReliableProtocolMessage(message.getBytes());
                        if (receivedMsg.isAcknowledge() && receivedMsg.getSequence() == enforcedMsg.getSequence()) {
                            done = true;
                        }
                    } 
                    catch (MalformedMessageException mme) {

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     */
    @Override
    public void signalEvent(MessageArrivedEvent protocolEvent) {
        if (protocolEvent != null) {
            try {
                ReliableProtocolMessage rcvdMsg = new ReliableProtocolMessage(protocolEvent.getContentBytes());
                if (rcvdMsg.isAcknowledge()) {
                    Debug.println("RUDP Ack received for " + rcvdMsg.getSequence() + " at " + rcvdMsg.getIndex(), "programming5.net.sockets.ReliableUDPClient");
                    synchronized (messageTable) {
                        ReliableProtocolMessage[] sentSequence = messageTable.get(rcvdMsg.getSequence());
                        if (sentSequence != null) {
                            sentSequence[rcvdMsg.getIndex()-1].signalAcked();
                        }
                    }
                }
                else {
                    long sequence = rcvdMsg.getSequence();
                    ReliableProtocolMessage ack = new ReliableProtocolMessage(sequence, rcvdMsg.getIndex());
                    try {
                        client.replyTo(protocolEvent, ack.getMessageBytes());
                    }
                    catch (NetworkException ne) {
                        Debug.printStackTrace(ne);
                    }
                    String streamID = ((AsynchMessageArrivedEvent) protocolEvent).getSourceURL() + "/" + Long.toString(rcvdMsg.getSequence());

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