/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/**
* @version $Rev: 924158 $ $Date: 2010-03-17 05:21:11 +0000 (Wed, 17 Mar 2010) $
*/
package org.apache.tuscany.sca.host.corba.naming;
import org.omg.CORBA.ORB;
/**
* A stand-alone naming service launchable from a command line.
*/
public class TransientNameServer {
private final TransientNameService service;
private final Object flag = new Object();
private Boolean started;
public TransientNameServer(String host, int port, String serviceName) {
this.service = new TransientNameService(host, port, serviceName);
}
public ORB getORB() {
return service.getORB();
}
public Thread start() {
Thread t = new Thread() {
public void run() {
ORB orb = null;
synchronized (flag) {
try {
service.run();
orb = service.getORB();
started = Boolean.TRUE;
} catch (Throwable e) {
started = Boolean.FALSE;
throw new IllegalStateException(e);
} finally {
flag.notifyAll();
}
}
// Wait for requests
orb.run();
}
};
t.setDaemon(true);
t.start();
checkState();
return t.isAlive() ? t : null;
}
private Boolean checkState() {
synchronized (flag) {
while (started == null) {
try {
flag.wait();
} catch (InterruptedException e) {
return null;
}
}
return started;
}
}
public void stop() {
if (Boolean.TRUE.equals(started)) {
service.destroy();
started = Boolean.FALSE;
}
}
/**
* Launch a name service as a stand alone process. The
* Host, port, and service name are controlled using
* program arguments.
*
* @param args The array of arguments for tailoring the service.
*
* @exception Exception
*/
public static void main(String args[]) throws Exception {
int port = TransientNameService.DEFAULT_SERVICE_PORT;
String host = TransientNameService.DEFAULT_SERVICE_HOST;
String serviceName = TransientNameService.DEFAULT_SERVICE_NAME;
// see if we have
for (int i = 0; i < args.length; i++) {
if (args[i].equals("-ORBInitialPort")) {
i++;
if (i < args.length) {
port = java.lang.Integer.parseInt(args[i]);
} else {
throw new IllegalArgumentException("Invalid -ORBInitialPort option");
}
} else if (args[i].equals("-ORBInitialHost")) {
i++;
if (i < args.length) {
host = args[i];
} else {
throw new IllegalArgumentException("Invalid -ORBInitialHost option");
}
} else if (args[i].equals("-ORBServiceName")) {
i++;
if (i < args.length) {
serviceName = args[i];
} else {
throw new IllegalArgumentException("Invalid -ORBServiceName option");
}
}
}
// create a services, and just spin it off. We wait forever after that.
TransientNameServer server = new TransientNameServer(host, port, serviceName);
server.start().join();
}
}