// GPars - Groovy Parallel Systems
//
// Copyright © 2008-10, 2014 The original author or authors
//
// 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 groovyx.gpars.remote.netty;
import java.io.Serializable;
import groovyx.gpars.remote.RemoteConnection;
import groovyx.gpars.remote.RemoteHost;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.serialization.ObjectEncoder;
public class RemoteObjectEncoder extends ObjectEncoder {
private final RemoteConnection connection;
/**
* Creates a new encoder.
*
* @param connection connection handling serialization details
*/
public RemoteObjectEncoder(final RemoteConnection connection) {
super();
this.connection = connection;
}
@Override
protected void encode(ChannelHandlerContext ctx, Serializable msg, ByteBuf out) throws Exception {
final RemoteHost remoteHost = connection.getHost();
if (remoteHost != null) {
remoteHost.enter();
}
try {
super.encode(ctx, msg, out);
}
catch (Exception e) {
e.printStackTrace();
throw e;
}
finally {
if (remoteHost != null) {
remoteHost.leave();
}
}
}
}