reactor.ipc.netty.channel.ChannelConnectHandler.java Source code

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Here is the source code for reactor.ipc.netty.channel.ChannelConnectHandler.java

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/*
 * Copyright (c) 2011-2016 Pivotal Software Inc, All Rights Reserved.
 *
 * 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 reactor.ipc.netty.channel;

import java.io.IOException;

import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import reactor.core.Cancellation;
import reactor.core.publisher.MonoSink;
import reactor.ipc.netty.NettyState;
import reactor.util.Logger;
import reactor.util.Loggers;

/**
 * @author Stephane Maldini
 */
final class ChannelConnectHandler implements ChannelFutureListener, Cancellation {

    final MonoSink<NettyState> sink;
    final Cancellation onClose;
    final ChannelFuture f;
    final boolean emitChannelState;

    ChannelConnectHandler(ChannelFuture f, MonoSink<NettyState> sink, Cancellation onClose,
            boolean emitChannelState) {
        this.sink = sink;
        this.f = f;
        this.emitChannelState = emitChannelState;
        this.onClose = onClose;
    }

    @Override
    public void operationComplete(ChannelFuture f) throws Exception {
        if (onClose != null) {
            f.channel().closeFuture().addListener(x -> onClose.dispose());
        }
        if (!f.isSuccess()) {
            if (f.cause() != null) {
                sink.error(f.cause());
            } else {
                sink.error(new IOException("error while connecting to " + f.channel().toString()));
            }
        } else if (emitChannelState) {
            sink.success(NettyOperations.newNettyState(f.channel(), this));
        }
    }

    @Override
    public void dispose() {
        if (f.channel().isOpen()) {
            try {
                f.channel().close().sync();
                if (onClose != null) {
                    onClose.dispose();
                }
            } catch (InterruptedException e) {
                log.error("error while disposing the channel", e);
            }
        }
    }

    static final Logger log = Loggers.getLogger(ChannelConnectHandler.class);
}