/**
*Copyright [2009-2010] [dennis zhuang(killme2008@gmail.com)]
*Licensed under the Apache License, Version 2.0 (the "License");
*you may not use this file except in compliance with the License.
*You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*Unless required by applicable law or agreed to in writing,
*software distributed under the License is distributed on an "AS IS" BASIS,
*WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
*either express or implied. See the License for the specific language governing permissions and limitations under the License
*/
/**
*Copyright [2009-2010] [dennis zhuang(killme2008@gmail.com)]
*Licensed under the Apache License, Version 2.0 (the "License");
*you may not use this file except in compliance with the License.
*You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*Unless required by applicable law or agreed to in writing,
*software distributed under the License is distributed on an "AS IS" BASIS,
*WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
*either express or implied. See the License for the specific language governing permissions and limitations under the License
*/
package com.google.code.hs4j.network.core.impl;
import com.google.code.hs4j.network.buffer.IoBuffer;
import com.google.code.hs4j.network.core.CodecFactory;
import com.google.code.hs4j.network.core.Session;
/**
* Default codec factory
*
* @author dennis
*
*/
public class ByteBufferCodecFactory implements CodecFactory {
static final IoBuffer EMPTY_BUFFER = IoBuffer.allocate(0);
private boolean direct;
public ByteBufferCodecFactory() {
this(false);
}
public ByteBufferCodecFactory(boolean direct) {
super();
this.direct = direct;
this.encoder = new ByteBufferEncoder();
this.decoder = new ByteBufferDecoder();
}
public class ByteBufferDecoder implements Decoder {
public Object decode(IoBuffer buff, Session session) {
if (buff == null) {
return null;
}
if (buff.remaining() == 0) {
return EMPTY_BUFFER;
}
byte[] bytes = new byte[buff.remaining()];
buff.get(bytes);
IoBuffer result = IoBuffer.allocate(bytes.length,
ByteBufferCodecFactory.this.direct);
result.put(bytes);
result.flip();
return result;
}
}
private Decoder decoder;
public Decoder getDecoder() {
return this.decoder;
}
public class ByteBufferEncoder implements Encoder {
public IoBuffer encode(Object message, Session session) {
final IoBuffer msgBuffer = (IoBuffer) message;
if (msgBuffer == null) {
return null;
}
if (msgBuffer.remaining() == 0) {
return EMPTY_BUFFER;
}
byte[] bytes = new byte[msgBuffer.remaining()];
msgBuffer.get(bytes);
IoBuffer result = IoBuffer.allocate(bytes.length,
ByteBufferCodecFactory.this.direct);
result.put(bytes);
result.flip();
return result;
}
}
private Encoder encoder;
public Encoder getEncoder() {
return this.encoder;
}
}