storm-core/src/jvm/backtype/storm/messaging/netty/StormClientHandler.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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 backtype.storm.messaging.netty;

import java.net.ConnectException;

import org.jboss.netty.channel.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class StormClientHandler extends SimpleChannelUpstreamHandler  {
    private static final Logger LOG = LoggerFactory.getLogger(StormClientHandler.class);
    private Client client;
    
    StormClientHandler(Client client) {
        this.client = client;
    }

    @Override
    public void channelInterestChanged(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
        client.notifyInterestChanged(e.getChannel());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent event) {
        Throwable cause = event.getCause();
        if (!(cause instanceof ConnectException)) {
            LOG.info("Connection failed " + client.dstAddressPrefixedName, cause);
        }
    }
}