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 import org.fusesource.hawtbuf.Buffer; 024 025 /** 026 * Implementation of a Marshaller for Buffer objects 027 * 028 * @author <a href="http://hiramchirino.com">Hiram Chirino</a> 029 */ 030 public class FixedBufferCodec implements Codec<Buffer> { 031 032 private final int size; 033 034 public FixedBufferCodec(int size) { 035 this.size = size; 036 } 037 038 public void encode(Buffer value, DataOutput dataOut) throws IOException { 039 dataOut.write(value.data, value.offset, size); 040 } 041 042 public Buffer decode(DataInput dataIn) throws IOException { 043 byte[] data = new byte[size]; 044 dataIn.readFully(data); 045 return new Buffer(data); 046 } 047 048 public int getFixedSize() { 049 return size; 050 } 051 052 public Buffer deepCopy(Buffer source) { 053 return source.deepCopy(); 054 } 055 056 public boolean isDeepCopySupported() { 057 return true; 058 } 059 060 public boolean isEstimatedSizeSupported() { 061 return true; 062 } 063 public int estimatedSize(Buffer object) { 064 return size; 065 } 066 067 }