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    1   /*
    2    *  Licensed to the Apache Software Foundation (ASF) under one
    3    *  or more contributor license agreements.  See the NOTICE file
    4    *  distributed with this work for additional information
    5    *  regarding copyright ownership.  The ASF licenses this file
    6    *  to you under the Apache License, Version 2.0 (the
    7    *  "License"); you may not use this file except in compliance
    8    *  with the License.  You may obtain a copy of the License at
    9    *
    10   *    http://www.apache.org/licenses/LICENSE-2.0
    11   *
    12   *  Unless required by applicable law or agreed to in writing,
    13   *  software distributed under the License is distributed on an
    14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    15   *  KIND, either express or implied.  See the License for the
    16   *  specific language governing permissions and limitations
    17   *  under the License.
    18   *
    19   */
    20  package org.apache.mina.codec.delimited.serialization;
    21
    22  import java.nio.ByteBuffer;
    23
    24  import org.apache.mina.codec.delimited.ByteBufferEncoder;
    25
    26  import com.google.protobuf.GeneratedMessage;
    27
    28  /**
    29   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    30   */
    31  public class ProtobufMessageEncoder<OUT extends GeneratedMessage> extends ByteBufferEncoder<OUT> {
    32      public static <T extends GeneratedMessage> ProtobufMessageEncoder<T> newInstance(Class<T> clazz) {
    33          return new ProtobufMessageEncoder<T>();
    34      }
    35
    36      @Override
    37      public int getEncodedSize(OUT message) {
    38          return message.getSerializedSize();
    39      }
    40
    41      @Override
    42      public void writeTo(OUT message, ByteBuffer buffer) {
    43          buffer.put(message.toByteArray());
    44      }
    45
    46  }