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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;
    21
    22  import org.apache.mina.codec.delimited.ints.VarInt;
    23  import org.apache.mina.codec.delimited.serialization.ProtobufMessageDecoder;
    24
    25  import com.google.protobuf.ExtensionRegistryLite;
    26  import com.google.protobuf.GeneratedMessage;
    27
    28  /**
    29   * Decode Protocol Buffer messages of type OUTPUT
    30   *
    31   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    32   */
    33  public class ProtobufDecoder<OUTPUT extends GeneratedMessage> extends
    34  		SizePrefixedDecoder<OUTPUT> {
    35  	public static <L extends GeneratedMessage> ProtobufDecoder<L> newInstance(
    36  			Class<L> clazz, ExtensionRegistryLite registry)
    37  			throws NoSuchMethodException {
    38  		return new ProtobufDecoder<L>(clazz, registry);
    39  	}
    40
    41  	public static <L extends GeneratedMessage> ProtobufDecoder<L> newInstance(
    42  			Class<L> clazz) throws NoSuchMethodException {
    43  		return newInstance(clazz, ExtensionRegistryLite.getEmptyRegistry());
    44  	}
    45
    46  	public ProtobufDecoder(Class<OUTPUT> clazz, ExtensionRegistryLite registry)
    47  			throws NoSuchMethodException {
    48  		super(new VarInt().getDecoder(), ProtobufMessageDecoder.newInstance(
    49  				clazz, registry));
    50  	}
    51  }