/*
* (C) Copyright 2013 Kurento (http://kurento.org/)
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser General Public License
* (LGPL) version 2.1 which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl-2.1.html
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
*/
package com.kurento.kmf.thrift;
import java.net.InetSocketAddress;
import org.apache.thrift.TProcessor;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TThreadedSelectorServer.Args;
import org.apache.thrift.transport.TNonblockingServerSocket;
import org.apache.thrift.transport.TNonblockingServerTransport;
import org.apache.thrift.transport.TTransportException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.kurento.kmf.thrift.internal.ThriftInterfaceExecutorService;
/**
* Server handler implementation for the thrift interface. This handler is used
* by KMS to send events and error to the media-api
*
* @author Ivan Gracia (igracia@gsyc.es)
* @since 1.0.0
*
*/
public class ThriftServer {
private static final Logger log = LoggerFactory
.getLogger(ThriftServer.class);
private final TProcessor processor;
private final InetSocketAddress addr;
private final ThriftInterfaceExecutorService executorService;
private TServer server;
/**
* Default constructor
*
* @param processor
* @param executorService
* @param addr
*/
public ThriftServer(TProcessor processor,
ThriftInterfaceExecutorService executorService,
InetSocketAddress addr) {
this.executorService = executorService;
this.processor = processor;
this.addr = addr;
}
/**
* Starts the thrift server in the configured address and port.
*
* @throws ThriftServerException
* if the server can't bind to the provided address, or it
* cannot be started
*/
public void start() {
TNonblockingServerTransport transport;
try {
transport = new TNonblockingServerSocket(addr);
} catch (TTransportException e) {
throw new ThriftServerException(
"Could not start media handler server on "
+ addr.toString() + ". Reason: " + e.getMessage(),
e);
}
log.debug("Thrift server started in {}", addr);
// TODO default selectorThreads is 2. Test if this is enough under load,
// or we would need more selector threads.
Args args = new Args(transport);
args.executorService(executorService.getExecutor())
.processor(processor);
server = new NonBlockingTThreadedSelectorServer(args);
server.serve();
}
public synchronized void destroy() {
if (server != null) {
log.debug("Closing Thrift server at {}", addr);
server.stop();
log.debug("Thrift server closed", addr);
}
}
}