groovyx.gpars.remote.netty.discovery.DiscoveryResponseDecoder.java Source code

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Here is the source code for groovyx.gpars.remote.netty.discovery.DiscoveryResponseDecoder.java

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// GPars - Groovy Parallel Systems
//
// Copyright  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.discovery;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.socket.DatagramPacket;
import io.netty.handler.codec.MessageToMessageDecoder;
import io.netty.util.CharsetUtil;

import java.net.InetSocketAddress;
import java.util.List;

public class DiscoveryResponseDecoder extends MessageToMessageDecoder<DatagramPacket> {
    @Override
    protected void decode(ChannelHandlerContext ctx, DatagramPacket msg, List<Object> out) throws Exception {
        ByteBuf buf = msg.content();
        int serverPort = buf.readInt();
        String actorUrl = buf.toString(CharsetUtil.UTF_8);

        InetSocketAddress sender = msg.sender();
        InetSocketAddress serverSocketAddress = new InetSocketAddress(sender.getAddress(), serverPort);

        DiscoveryResponse response = new DiscoveryResponse(actorUrl, serverSocketAddress);
        out.add(response);
    }
}