PacketWriteStreamImpl.java

/*
 * Copyright (c) 2011-2013 The original author or authors
 *  ------------------------------------------------------
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  and Apache License v2.0 which accompanies this distribution.
 *
 *      The Eclipse Public License is available at
 *      http://www.eclipse.org/legal/epl-v10.html
 *
 *      The Apache License v2.0 is available at
 *      http://www.opensource.org/licenses/apache2.0.php
 *
 *  You may elect to redistribute this code under either of these licenses.
 */

package io.vertx.core.datagram.impl;

import io.vertx.core.AsyncResult;
import io.vertx.core.Handler;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.datagram.DatagramSocket;
import io.vertx.core.streams.WriteStream;

/**
 * A write stream for packets.
 *
* @author <a href="mailto:julien@julienviet.com">Julien Viet</a>
*/
class PacketWriteStreamImpl implements WriteStream<Buffer>, Handler<AsyncResult<DatagramSocket>> {

  private DatagramSocketImpl datagramSocket;
  private Handler<Throwable> exceptionHandler;
  private final int port;
  private final String host;

  PacketWriteStreamImpl(DatagramSocketImpl datagramSocket, int port, String host) {
    this.datagramSocket = datagramSocket;
    this.port = port;
    this.host = host;
  }

  @Override
  public void handle(AsyncResult<DatagramSocket> event) {
    if (event.failed() && exceptionHandler != null) {
      exceptionHandler.handle(event.cause());
    }
  }

  @Override
  public PacketWriteStreamImpl exceptionHandler(Handler<Throwable> handler) {
    exceptionHandler = handler;
    return this;
  }

  @Override
  public PacketWriteStreamImpl write(Buffer data) {
    datagramSocket.send(data, port, host, this);
    return this;
  }

  @Override
  public PacketWriteStreamImpl setWriteQueueMaxSize(int maxSize) {
    return this;
  }

  @Override
  public boolean writeQueueFull() {
    return false;
  }

  @Override
  public PacketWriteStreamImpl drainHandler(Handler<Void> handler) {
    return this;
  }

  @Override
  public void end() {
  }
}