/**
* 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.
*/
package groovy.jmx.builder;
import java.rmi.NoSuchObjectException;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.util.HashMap;
import java.util.Map;
/**
* Helper class to help with RMI
*/
public class JmxConnectorHelper {
public static Map createRmiRegistry(int initPort) {
Map<String, Object> result = new HashMap<String, Object>(2);
int counter = 0;
int port = initPort;
Registry reg = null;
while (reg == null && counter <= 4) {
try {
reg = LocateRegistry.createRegistry(port);
result.put("registry", reg);
result.put("port", port);
break;
} catch (RemoteException ex) {
counter++;
port = port + 1;
System.out.println("JmxBuilder - *** FAILED *** to create RMI Registry - Will Retry on port [" + port + "].");
try {
Thread.currentThread().sleep(500);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
}
return result;
}
public static void destroyRmiRegistry(Registry reg) {
try {
if (reg != null) {
java.rmi.server.UnicastRemoteObject.unexportObject(reg, true);
}
} catch (NoSuchObjectException e) {
throw new RuntimeException(e);
}
}
}