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/*
 * Copyright 2014 Netflix, Inc.
 *
 * 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 io.reactivex.netty.pipeline;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.ReferenceCountUtil;
import io.reactivex.netty.channel.NewRxConnectionEvent;
import io.reactivex.netty.client.ConnectionReuseEvent;
import rx.Observer;

/**
 * An adapter that converts a message generated by netty's pipeline to an Observable event. 
* * @author Nitesh Kant */ public class ObservableAdapter extends ChannelInboundHandlerAdapter { @SuppressWarnings("rawtypes") /*Nullable*/ private Observer bridgedObserver; /*This actually is an Rx Subject*/ @SuppressWarnings("unchecked") @Override public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { if (null != bridgedObserver) { try { bridgedObserver.onNext(msg); } catch (ClassCastException cce) { bridgedObserver.onError(new RuntimeException("Mismatched message type.", cce)); } finally { ReferenceCountUtil.release(msg); } } } @Override public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception { if (null != bridgedObserver) { bridgedObserver.onError(cause); } } @Override public void channelInactive(ChannelHandlerContext ctx) throws Exception { if (null != bridgedObserver) { bridgedObserver.onCompleted(); } } @Override public void userEventTriggered(ChannelHandlerContext ctx, Object event) throws Exception { if (event instanceof NewRxConnectionEvent) { NewRxConnectionEvent rxConnectionEvent = (NewRxConnectionEvent) event; bridgedObserver = rxConnectionEvent.getConnectedObserver(); } else if (event instanceof ConnectionReuseEvent) { ConnectionReuseEvent reuseEvent = (ConnectionReuseEvent) event; bridgedObserver = reuseEvent.getConnectedObserver(); } super.userEventTriggered(ctx, event); } }




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