/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you 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.stratio.deep.commons.extractor.client.codecs;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.util.List;
import com.stratio.deep.commons.extractor.response.Response;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
public class ResponseDecoder extends ByteToMessageDecoder {
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
// Wait until the length prefix is available.
if (in.readableBytes() < 5) {
return;
}
// Wait until the whole data is available.
int dataLength = in.readInt();
if (in.readableBytes() < dataLength) {
in.resetReaderIndex();
return;
}
// Convert the received data into a new BigInteger.
byte[] decoded = new byte[dataLength];
in.readBytes(decoded);
ByteArrayInputStream bis = new ByteArrayInputStream(decoded);
ObjectInput inObj = null;
Response response = null;
try {
inObj = new ObjectInputStream(bis);
response = (Response) inObj.readObject();
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
} finally {
try {
bis.close();
} catch (IOException ex) {
// ignore close exception
}
try {
if (inObj != null) {
inObj.close();
}
} catch (IOException ex) {
// ignore close exception
}
}
out.add(response);
}
}