Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.wake.remote.transport.netty;
020
021import org.apache.reef.tang.Injector;
022import org.apache.reef.tang.Tang;
023import org.apache.reef.tang.exceptions.InjectionException;
024import org.apache.reef.wake.EStage;
025import org.apache.reef.wake.EventHandler;
026import org.apache.reef.wake.impl.SyncStage;
027import org.apache.reef.wake.remote.RemoteConfiguration;
028import org.apache.reef.wake.remote.address.LocalAddressProvider;
029import org.apache.reef.wake.remote.impl.TransportEvent;
030import org.apache.reef.wake.remote.ports.TcpPortProvider;
031import org.apache.reef.wake.remote.transport.Transport;
032import org.apache.reef.wake.remote.transport.TransportFactory;
033
034import javax.inject.Inject;
035
036/**
037 * Factory that creates a messaging transport.
038 */
039public final class MessagingTransportFactory implements TransportFactory {
040
041  private final String localAddress;
042
043  @Inject
044  private MessagingTransportFactory(final LocalAddressProvider localAddressProvider) {
045    this.localAddress = localAddressProvider.getLocalAddress();
046  }
047
048  /**
049   * Creates a transport.
050   *
051   * @param port          a listening port
052   * @param clientHandler a transport client side handler
053   * @param serverHandler a transport server side handler
054   * @param exHandler     a exception handler
055   */
056  @Override
057  public Transport newInstance(final int port,
058                               final EventHandler<TransportEvent> clientHandler,
059                               final EventHandler<TransportEvent> serverHandler,
060                               final EventHandler<Exception> exHandler) {
061
062    final Injector injector = Tang.Factory.getTang().newInjector();
063    injector.bindVolatileParameter(RemoteConfiguration.HostAddress.class, this.localAddress);
064    injector.bindVolatileParameter(RemoteConfiguration.Port.class, port);
065    injector.bindVolatileParameter(RemoteConfiguration.RemoteClientStage.class, new SyncStage<>(clientHandler));
066    injector.bindVolatileParameter(RemoteConfiguration.RemoteServerStage.class, new SyncStage<>(serverHandler));
067
068    final Transport transport;
069    try {
070      transport = injector.getInstance(NettyMessagingTransport.class);
071      transport.registerErrorHandler(exHandler);
072      return transport;
073    } catch (final InjectionException e) {
074      throw new RuntimeException(e);
075    }
076  }
077
078  /**
079   * Creates a transport.
080   *
081   * @param hostAddress   a host address
082   * @param port          a listening port
083   * @param clientStage   a client stage
084   * @param serverStage   a server stage
085   * @param numberOfTries a number of tries
086   * @param retryTimeout  a timeout for retry
087   */
088  @Override
089  public Transport newInstance(final String hostAddress,
090                               final int port,
091                               final EStage<TransportEvent> clientStage,
092                               final EStage<TransportEvent> serverStage,
093                               final int numberOfTries,
094                               final int retryTimeout) {
095    try {
096      TcpPortProvider tcpPortProvider = Tang.Factory.getTang().newInjector().getInstance(TcpPortProvider.class);
097      return newInstance(hostAddress, port, clientStage,
098              serverStage, numberOfTries, retryTimeout, tcpPortProvider);
099    } catch (final InjectionException e) {
100      throw new RuntimeException(e);
101    }
102  }
103
104  /**
105   * Creates a transport.
106   *
107   * @param hostAddress     a host address
108   * @param port            a listening port
109   * @param clientStage     a client stage
110   * @param serverStage     a server stage
111   * @param numberOfTries   a number of tries
112   * @param retryTimeout    a timeout for retry
113   * @param tcpPortProvider a provider for TCP port
114   */
115  @Override
116  public Transport newInstance(final String hostAddress,
117                               final int port,
118                               final EStage<TransportEvent> clientStage,
119                               final EStage<TransportEvent> serverStage,
120                               final int numberOfTries,
121                               final int retryTimeout,
122                               final TcpPortProvider tcpPortProvider) {
123
124    final Injector injector = Tang.Factory.getTang().newInjector();
125    injector.bindVolatileParameter(RemoteConfiguration.HostAddress.class, hostAddress);
126    injector.bindVolatileParameter(RemoteConfiguration.Port.class, port);
127    injector.bindVolatileParameter(RemoteConfiguration.RemoteClientStage.class, clientStage);
128    injector.bindVolatileParameter(RemoteConfiguration.RemoteServerStage.class, serverStage);
129    injector.bindVolatileParameter(RemoteConfiguration.NumberOfTries.class, numberOfTries);
130    injector.bindVolatileParameter(RemoteConfiguration.RetryTimeout.class, retryTimeout);
131    injector.bindVolatileInstance(TcpPortProvider.class, tcpPortProvider);
132    try {
133      return injector.getInstance(NettyMessagingTransport.class);
134    } catch (final InjectionException e) {
135      throw new RuntimeException(e);
136    }
137  }
138}