/*
* Copyright 2016 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.test.util.embedded;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.ChannelProgressivePromise;
import io.netty.channel.ChannelPromise;
import io.netty.channel.embedded.EmbeddedChannel;
import io.netty.util.concurrent.EventExecutorGroup;
import java.net.SocketAddress;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.atomic.AtomicLong;
class EmbeddedChannelPipelineDelegate implements ChannelPipeline {
private final ChannelPipeline pipeline;
private final String lastHandlerName;
private final AtomicLong uniqueNameCounter = new AtomicLong();
public EmbeddedChannelPipelineDelegate(EmbeddedChannel newChannel) {
pipeline = newChannel.pipeline();
final ChannelHandler lastHandler = pipeline.last();
if (null != lastHandler) {
List<String> names = pipeline.names();
for (String name : names) {
if (pipeline.get(name) == lastHandler) {
lastHandlerName = name;
return;
}
}
lastHandlerName = null;
} else {
lastHandlerName = null;
}
}
@Override
public ChannelPipeline addFirst(String name, ChannelHandler handler) {
pipeline.addFirst(name, handler);
return this;
}
@Override
public ChannelPipeline addFirst(EventExecutorGroup group,
String name, ChannelHandler handler) {
pipeline.addFirst(group, name, handler);
return this;
}
@Override
public ChannelPipeline addLast(String name, ChannelHandler handler) {
if (null != lastHandlerName) {
pipeline.addBefore(lastHandlerName, name, handler);
} else {
pipeline.addLast(name, handler);
}
return this;
}
@Override
public ChannelPipeline addLast(EventExecutorGroup group,
String name, ChannelHandler handler) {
if (null != lastHandlerName) {
pipeline.addBefore(group, lastHandlerName, name, handler);
} else {
pipeline.addLast(group, name, handler);
}
return this;
}
@Override
public ChannelPipeline addBefore(String baseName, String name,
ChannelHandler handler) {
pipeline.addBefore(baseName, name, handler);
return this;
}
@Override
public ChannelPipeline addBefore(EventExecutorGroup group,
String baseName, String name,
ChannelHandler handler) {
pipeline.addBefore(group, baseName, name, handler);
return this;
}
@Override
public ChannelPipeline addAfter(String baseName, String name,
ChannelHandler handler) {
pipeline.addAfter(baseName, name, handler);
return this;
}
@Override
public ChannelPipeline addAfter(EventExecutorGroup group,
String baseName, String name,
ChannelHandler handler) {
pipeline.addAfter(group, baseName, name, handler);
return this;
}
@Override
public ChannelPipeline addFirst(ChannelHandler... handlers) {
pipeline.addFirst(handlers);
return this;
}
@Override
public ChannelPipeline addFirst(EventExecutorGroup group,
ChannelHandler... handlers) {
pipeline.addFirst(group, handlers);
return this;
}
@Override
public ChannelPipeline addLast(ChannelHandler... handlers) {
if (null != lastHandlerName) {
for (ChannelHandler handler : handlers) {
pipeline.addBefore(lastHandlerName, generateUniqueName(), handler);
}
} else {
pipeline.addLast(handlers);
}
return this;
}
@Override
public ChannelPipeline addLast(EventExecutorGroup group,
ChannelHandler... handlers) {
if (null != lastHandlerName) {
for (ChannelHandler handler : handlers) {
pipeline.addBefore(group, lastHandlerName, generateUniqueName(), handler);
}
} else {
pipeline.addLast(group, handlers);
}
return this;
}
@Override
public ChannelPipeline remove(ChannelHandler handler) {
return pipeline.remove(handler);
}
@Override
public ChannelHandler remove(String name) {
return pipeline.remove(name);
}
@Override
public <T extends ChannelHandler> T remove(Class<T> handlerType) {
return pipeline.remove(handlerType);
}
@Override
public ChannelHandler removeFirst() {
return pipeline.removeFirst();
}
@Override
public ChannelHandler removeLast() {
return pipeline.removeLast();
}
@Override
public ChannelPipeline replace(ChannelHandler oldHandler,
String newName, ChannelHandler newHandler) {
return pipeline.replace(oldHandler, newName, newHandler);
}
@Override
public ChannelHandler replace(String oldName, String newName,
ChannelHandler newHandler) {
return pipeline.replace(oldName, newName, newHandler);
}
@Override
public <T extends ChannelHandler> T replace(Class<T> oldHandlerType, String newName,
ChannelHandler newHandler) {
return pipeline.replace(oldHandlerType, newName, newHandler);
}
private String generateUniqueName() {
return "ClientEmbeddedConnectionFactoryGeneratedName-" + uniqueNameCounter.incrementAndGet();
}
@Override
public ChannelHandler first() {
return pipeline.first();
}
@Override
public ChannelHandlerContext firstContext() {
return pipeline.firstContext();
}
@Override
public ChannelHandler last() {
return pipeline.last();
}
@Override
public ChannelHandlerContext lastContext() {
return pipeline.lastContext();
}
@Override
public ChannelHandler get(String name) {
return pipeline.get(name);
}
@Override
public <T extends ChannelHandler> T get(Class<T> handlerType) {
return pipeline.get(handlerType);
}
@Override
public ChannelHandlerContext context(ChannelHandler handler) {
return pipeline.context(handler);
}
@Override
public ChannelHandlerContext context(String name) {
return pipeline.context(name);
}
@Override
public ChannelHandlerContext context(
Class<? extends ChannelHandler> handlerType) {
return pipeline.context(handlerType);
}
@Override
public Channel channel() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public List<String> names() {
return pipeline.names();
}
@Override
public Map<String, ChannelHandler> toMap() {
return pipeline.toMap();
}
@Override
public ChannelPipeline fireChannelRegistered() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline fireChannelUnregistered() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline fireChannelActive() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline fireChannelInactive() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline fireExceptionCaught(Throwable cause) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline fireUserEventTriggered(Object event) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline fireChannelRead(Object msg) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline fireChannelReadComplete() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline fireChannelWritabilityChanged() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture bind(SocketAddress localAddress) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture connect(SocketAddress remoteAddress) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture connect(SocketAddress remoteAddress,
SocketAddress localAddress) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture disconnect() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture close() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture deregister() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture bind(SocketAddress localAddress,
ChannelPromise promise) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture connect(SocketAddress remoteAddress,
ChannelPromise promise) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture connect(SocketAddress remoteAddress,
SocketAddress localAddress,
ChannelPromise promise) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture disconnect(ChannelPromise promise) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture close(ChannelPromise promise) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture deregister(ChannelPromise promise) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline read() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture write(Object msg) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture write(Object msg, ChannelPromise promise) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPipeline flush() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture writeAndFlush(Object msg, ChannelPromise promise) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture writeAndFlush(Object msg) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPromise newPromise() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelProgressivePromise newProgressivePromise() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture newSucceededFuture() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelFuture newFailedFuture(Throwable cause) {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public ChannelPromise voidPromise() {
throw new UnsupportedOperationException("Only pipeline modification operations are allowed");
}
@Override
public Iterator<Entry<String, ChannelHandler>> iterator() {
return pipeline.iterator();
}
}