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.io.network.naming.serialization;
020
021import org.apache.reef.io.network.naming.NameAssignmentTuple;
022import org.apache.reef.io.network.naming.avro.AvroNamingRegisterRequest;
023import org.apache.reef.io.network.naming.exception.NamingRuntimeException;
024import org.apache.reef.wake.IdentifierFactory;
025import org.apache.reef.wake.remote.Codec;
026
027import java.net.InetSocketAddress;
028
029/**
030 * Naming registration request codec
031 */
032public class NamingRegisterRequestCodec implements Codec<NamingRegisterRequest> {
033
034  private final IdentifierFactory factory;
035
036  /**
037   * Constructs a naming registration request codec
038   *
039   * @param factory the identifier factory
040   */
041  public NamingRegisterRequestCodec(IdentifierFactory factory) {
042    this.factory = factory;
043  }
044
045  /**
046   * Encodes the name assignment to bytes
047   *
048   * @param obj the naming registration request
049   * @return a byte array
050   */
051  @Override
052  public byte[] encode(NamingRegisterRequest obj) {
053    final AvroNamingRegisterRequest result = AvroNamingRegisterRequest.newBuilder()
054        .setId(obj.getNameAssignment().getIdentifier().toString())
055        .setHost(obj.getNameAssignment().getAddress().getHostName())
056        .setPort(obj.getNameAssignment().getAddress().getPort())
057        .build();
058    return AvroUtils.toBytes(result, AvroNamingRegisterRequest.class);
059  }
060
061  /**
062   * Decodes the bytes to a name assignment
063   *
064   * @param buf the byte array
065   * @return a naming registration request
066   * @throws NamingRuntimeException
067   */
068  @Override
069  public NamingRegisterRequest decode(byte[] buf) {
070    final AvroNamingRegisterRequest avroNamingRegisterRequest = AvroUtils.fromBytes(buf, AvroNamingRegisterRequest.class);
071    return new NamingRegisterRequest(
072        new NameAssignmentTuple(factory.getNewInstance(avroNamingRegisterRequest.getId().toString()),
073            new InetSocketAddress(avroNamingRegisterRequest.getHost().toString(), avroNamingRegisterRequest.getPort()))
074    );
075  }
076}