/*
* Copyright 2014 NAVER Corp.
*
* 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 com.navercorp.pinpoint.collector.cluster;
import com.navercorp.pinpoint.collector.cluster.route.DefaultRouteHandler;
import com.navercorp.pinpoint.collector.cluster.route.RequestEvent;
import com.navercorp.pinpoint.collector.cluster.route.StreamEvent;
import com.navercorp.pinpoint.collector.cluster.route.StreamRouteHandler;
import com.navercorp.pinpoint.rpc.MessageListener;
import com.navercorp.pinpoint.rpc.PinpointSocket;
import com.navercorp.pinpoint.rpc.packet.RequestPacket;
import com.navercorp.pinpoint.rpc.packet.SendPacket;
import com.navercorp.pinpoint.rpc.packet.stream.StreamClosePacket;
import com.navercorp.pinpoint.rpc.packet.stream.StreamCode;
import com.navercorp.pinpoint.rpc.packet.stream.StreamCreatePacket;
import com.navercorp.pinpoint.rpc.stream.ServerStreamChannelContext;
import com.navercorp.pinpoint.rpc.stream.ServerStreamChannelMessageListener;
import com.navercorp.pinpoint.thrift.dto.TResult;
import com.navercorp.pinpoint.thrift.dto.command.TCommandTransfer;
import com.navercorp.pinpoint.thrift.dto.command.TCommandTransferResponse;
import com.navercorp.pinpoint.thrift.dto.command.TRouteResult;
import com.navercorp.pinpoint.thrift.io.DeserializerFactory;
import com.navercorp.pinpoint.thrift.io.HeaderTBaseDeserializer;
import com.navercorp.pinpoint.thrift.io.HeaderTBaseSerializer;
import com.navercorp.pinpoint.thrift.io.SerializerFactory;
import com.navercorp.pinpoint.thrift.util.SerializationUtils;
import org.apache.thrift.TBase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import javax.annotation.PreDestroy;
/**
* @author koo.taejin
* @author HyunGil Jeong
*/
public class ClusterPointRouter implements MessageListener, ServerStreamChannelMessageListener {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private final ClusterPointRepository<TargetClusterPoint> targetClusterPointRepository;
private final DefaultRouteHandler routeHandler;
private final StreamRouteHandler streamRouteHandler;
@Autowired
private SerializerFactory<HeaderTBaseSerializer> commandSerializerFactory;
@Autowired
private DeserializerFactory<HeaderTBaseDeserializer> commandDeserializerFactory;
public ClusterPointRouter(ClusterPointRepository<TargetClusterPoint> targetClusterPointRepository,
DefaultRouteHandler defaultRouteHandler, StreamRouteHandler streamRouteHandler) {
if (targetClusterPointRepository == null) {
throw new NullPointerException("targetClusterPointRepository may not be null");
}
if (defaultRouteHandler == null) {
throw new NullPointerException("defaultRouteHandler may not be null");
}
if (streamRouteHandler == null) {
throw new NullPointerException("streamRouteHandler may not be null");
}
this.targetClusterPointRepository = targetClusterPointRepository;
this.routeHandler = defaultRouteHandler;
this.streamRouteHandler = streamRouteHandler;
}
@PreDestroy
public void stop() {
}
@Override
public void handleSend(SendPacket sendPacket, PinpointSocket pinpointSocket) {
logger.info("handleSend packet:{}, remote:{}", sendPacket, pinpointSocket.getRemoteAddress());
}
@Override
public void handleRequest(RequestPacket requestPacket, PinpointSocket pinpointSocket) {
logger.info("handleRequest packet:{}, remote:{}", requestPacket, pinpointSocket.getRemoteAddress());
TBase<?, ?> request = deserialize(requestPacket.getPayload());
if (request == null) {
handleRouteRequestFail("Protocol decoding failed.", requestPacket, pinpointSocket);
} else if (request instanceof TCommandTransfer) {
handleRouteRequest((TCommandTransfer)request, requestPacket, pinpointSocket);
} else {
handleRouteRequestFail("Unknown error.", requestPacket, pinpointSocket);
}
}
@Override
public StreamCode handleStreamCreate(ServerStreamChannelContext streamChannelContext, StreamCreatePacket packet) {
logger.info("handleStreamCreate packet:{}, streamChannel:{}", packet, streamChannelContext);
TBase<?, ?> request = deserialize(packet.getPayload());
if (request == null) {
return StreamCode.TYPE_UNKNOWN;
} else if (request instanceof TCommandTransfer) {
return handleStreamRouteCreate((TCommandTransfer)request, packet, streamChannelContext);
} else {
return StreamCode.TYPE_UNSUPPORT;
}
}
@Override
public void handleStreamClose(ServerStreamChannelContext streamChannelContext, StreamClosePacket packet) {
logger.info("handleStreamClose packet:{}, streamChannel:{}", packet, streamChannelContext);
streamRouteHandler.close(streamChannelContext);
}
private boolean handleRouteRequest(TCommandTransfer request, RequestPacket requestPacket, PinpointSocket pinpointSocket) {
byte[] payload = ((TCommandTransfer)request).getPayload();
TBase<?,?> command = deserialize(payload);
TCommandTransferResponse response = routeHandler.onRoute(new RequestEvent((TCommandTransfer) request, pinpointSocket.getRemoteAddress(), requestPacket.getRequestId(), command));
pinpointSocket.response(requestPacket, serialize(response));
return response.getRouteResult() == TRouteResult.OK;
}
private void handleRouteRequestFail(String message, RequestPacket requestPacket, PinpointSocket pinpointSocket) {
TResult tResult = new TResult(false);
tResult.setMessage(message);
pinpointSocket.response(requestPacket, serialize(tResult));
}
private StreamCode handleStreamRouteCreate(TCommandTransfer request, StreamCreatePacket packet, ServerStreamChannelContext streamChannelContext) {
byte[] payload = ((TCommandTransfer)request).getPayload();
TBase<?,?> command = deserialize(payload);
if (command == null) {
return StreamCode.TYPE_UNKNOWN;
}
TCommandTransferResponse response = streamRouteHandler.onRoute(new StreamEvent((TCommandTransfer) request, streamChannelContext, command));
TRouteResult routeResult = response.getRouteResult();
if (routeResult != TRouteResult.OK) {
logger.warn("handleStreamRouteCreate failed. command:{}, routeResult:{}", command, routeResult);
return convertToStreamCode(routeResult);
}
return StreamCode.OK;
}
public ClusterPointRepository<TargetClusterPoint> getTargetClusterPointRepository() {
return targetClusterPointRepository;
}
private byte[] serialize(TBase<?,?> result) {
return SerializationUtils.serialize(result, commandSerializerFactory, null);
}
private TBase<?,?> deserialize(byte[] objectData) {
return SerializationUtils.deserialize(objectData, commandDeserializerFactory, null);
}
private StreamCode convertToStreamCode(TRouteResult routeResult) {
switch (routeResult) {
case NOT_SUPPORTED_REQUEST:
return StreamCode.TYPE_UNSUPPORT;
case NOT_ACCEPTABLE:
case NOT_SUPPORTED_SERVICE:
return StreamCode.CONNECTION_UNSUPPORT;
default:
return StreamCode.ROUTE_ERROR;
}
}
}