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    1   /**
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    * Unless required by applicable law or agreed to in writing, software
   12    * distributed under the License is distributed on an "AS IS" BASIS,
   13    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    * See the License for the specific language governing permissions and
   15    * limitations under the License.
   16    */
   17   package org.apache.kahadb.util;
   18   
   19   import java.io.DataInput;
   20   import java.io.DataOutput;
   21   import java.io.IOException;
   22   
   23   /**
   24    * Implementation of a Marshaller for byte arrays
   25    * 
   26    * @version $Revision: 816280 $
   27    */
   28   public class BytesMarshaller implements Marshaller<byte[]> {
   29   
   30       public void writePayload(byte[] data, DataOutput dataOut) throws IOException {
   31           dataOut.writeInt(data.length);
   32           dataOut.write(data);
   33       }
   34   
   35       public byte[] readPayload(DataInput dataIn) throws IOException {
   36           int size = dataIn.readInt();
   37           byte[] data = new byte[size];
   38           dataIn.readFully(data);
   39           return data;
   40       }
   41       
   42       public int getFixedSize() {
   43           return -1;
   44       }
   45   
   46       public byte[] deepCopy(byte[] source) {
   47           byte []rc = new byte[source.length];
   48           System.arraycopy(source, 0, rc, 0, source.length);
   49           return rc;
   50       }
   51   
   52       public boolean isDeepCopySupported() {
   53           return true;
   54       }
   55   }

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