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