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.avro.AvroNamingUnRegisterRequest;
022import org.apache.reef.wake.IdentifierFactory;
023import org.apache.reef.wake.remote.Codec;
024
025import javax.inject.Inject;
026
027/**
028 * Naming un-registration request codec.
029 */
030public final class NamingUnregisterRequestCodec implements Codec<NamingUnregisterRequest> {
031
032  private final IdentifierFactory factory;
033
034  /**
035   * Constructs a naming un-registration request codec.
036   *
037   * @param factory the identifier factory
038   */
039  @Inject
040  public NamingUnregisterRequestCodec(final IdentifierFactory factory) {
041    this.factory = factory;
042  }
043
044  /**
045   * Encodes the naming un-registration request to bytes.
046   *
047   * @param obj the naming un-registration request
048   * @return a byte array
049   */
050  @Override
051  public byte[] encode(final NamingUnregisterRequest obj) {
052    final AvroNamingUnRegisterRequest result = AvroNamingUnRegisterRequest.newBuilder()
053        .setId(obj.getIdentifier().toString())
054        .build();
055    return AvroUtils.toBytes(result, AvroNamingUnRegisterRequest.class);
056  }
057
058  /**
059   * Decodes the bytes to a naming un-registration request.
060   *
061   * @param buf the byte array
062   * @return a naming un-registration request
063   * @throws org.apache.reef.io.network.naming.exception.NamingRuntimeException
064   */
065  @Override
066  public NamingUnregisterRequest decode(final byte[] buf) {
067    final AvroNamingUnRegisterRequest result = AvroUtils.fromBytes(buf, AvroNamingUnRegisterRequest.class);
068    return new NamingUnregisterRequest(factory.getNewInstance(result.getId().toString()));
069  }
070
071}