001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.fusesource.hawtbuf.codec; 018 019 import java.io.DataInput; 020 import java.io.DataOutput; 021 import java.io.IOException; 022 023 /** 024 * Implementation of a Marshaller for byte arrays 025 * 026 */ 027 public class BytesCodec implements Codec<byte[]> { 028 029 public static final BytesCodec INSTANCE = new BytesCodec(); 030 031 public void encode(byte[] data, DataOutput dataOut) throws IOException { 032 dataOut.writeInt(data.length); 033 dataOut.write(data); 034 } 035 036 public byte[] decode(DataInput dataIn) throws IOException { 037 int size = dataIn.readInt(); 038 byte[] data = new byte[size]; 039 dataIn.readFully(data); 040 return data; 041 } 042 043 public int getFixedSize() { 044 return -1; 045 } 046 047 public byte[] deepCopy(byte[] source) { 048 byte []rc = new byte[source.length]; 049 System.arraycopy(source, 0, rc, 0, source.length); 050 return rc; 051 } 052 053 public boolean isDeepCopySupported() { 054 return true; 055 } 056 057 public boolean isEstimatedSizeSupported() { 058 return true; 059 } 060 061 public int estimatedSize(byte[] object) { 062 return object.length+4; 063 } 064 }