/*
* Copyright 2013 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 org.vertx.java.core.http.impl;
import io.netty.buffer.BufUtil;
import io.netty.buffer.MessageBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelHandlerUtil;
import io.netty.channel.ChannelInboundMessageHandler;
import org.vertx.java.core.impl.DefaultContext;
import org.vertx.java.core.impl.VertxInternal;
import org.vertx.java.core.net.impl.ConnectionBase;
import org.vertx.java.core.net.impl.VertxStateHandler;
import java.util.Map;
/**
* @author <a href="mailto:nmaurer@redhat.com">Norman Maurer</a>
*/
public abstract class VertxHttpHandler<C extends ConnectionBase> extends VertxStateHandler<C> implements
ChannelHandlerUtil.SingleInboundMessageHandler<Object>, ChannelInboundMessageHandler<Object> {
private final VertxInternal vertx;
protected VertxHttpHandler(VertxInternal vertx, Map<Channel, C> connectionMap) {
super(vertx, connectionMap);
this.vertx = vertx;
}
@Override
public MessageBuf<Object> newInboundBuffer(ChannelHandlerContext channelHandlerContext) throws Exception {
return Unpooled.messageBuffer();
}
@Override
public void inboundBufferUpdated(ChannelHandlerContext channelHandlerContext) throws Exception {
ChannelHandlerUtil.handleInboundBufferUpdated(channelHandlerContext, this);
}
@Override
public boolean acceptInboundMessage(Object o) throws Exception {
return true;
}
@Override
public boolean beginMessageReceived(ChannelHandlerContext channelHandlerContext) throws Exception {
return true;
}
@Override
public void endMessageReceived(ChannelHandlerContext channelHandlerContext) throws Exception {
// NOOP
}
@Override
public void messageReceived(final ChannelHandlerContext chctx, final Object msg) throws Exception {
final Channel ch = chctx.channel();
final C connection = connectionMap.get(ch);
if (connection != null) {
DefaultContext context = getContext(connection);
// We need to do this since it's possible the server is being used from a worker context
if (context.isOnCorrectWorker(ch.eventLoop())) {
try {
vertx.setContext(context);
doMessageReceived(connection, chctx, msg);
} catch (Throwable t) {
context.reportException(t);
}
} else {
BufUtil.retain(msg);
context.execute(new Runnable() {
public void run() {
try {
doMessageReceived(connection, chctx, msg);
} catch (Exception e) {
ch.pipeline().fireExceptionCaught(e);
} finally {
BufUtil.release(msg);
}
}
});
}
} else {
doMessageReceived(connection, chctx, msg);
}
}
protected abstract void doMessageReceived(C connection, ChannelHandlerContext ctx, Object msg) throws Exception;
}