/*
 * Copyright 2014 TORCH GmbH
 *
 * 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 org.graylog2.gelfclient.encoder;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToMessageEncoder;

import java.io.ByteArrayOutputStream;
import java.util.List;
import java.util.zip.GZIPOutputStream;

/**
 * @author Bernd Ahlers <bernd@torch.sh>
 */
public class GelfCompressionEncoder extends MessageToMessageEncoder<ByteBuf> {
    @Override
    protected void encode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) throws Exception {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        GZIPOutputStream stream = new GZIPOutputStream(bos);

        stream.write(msg.array());
        stream.finish();
        stream.close();

        out.add(Unpooled.wrappedBuffer(bos.toByteArray()));

        bos.close();
    }
}

@@ -1148,16 +1148,27 @@
         
+try (final 
 ByteArra
@@ -1224,16 +1224,27 @@
         
+     final 
 GZIPOutp
@@ -1286,17 +1286,19 @@
 eam(bos)
-;
+) %7B
 %0A%0A      
@@ -1295,24 +1295,28 @@
  %7B%0A%0A        
+ 
+   
 stream.write
@@ -1334,24 +1334,28 @@
 ));%0A        
+    
 stream.finis
@@ -1363,33 +1363,13 @@
 ();%0A
+%0A
     
-    stream.close();%0A%0A
     
@@ -1424,25 +1424,24 @@
 ay()));%0A
-%0A
         
 bos.clos
@@ -1436,20 +1436,9 @@
     
-bos.close();
+%7D
 %0A   

Use try-with-resources in GelfCompressionEncoder