resource/src/main/java/org/apache/oodt/cas/resource/system/ResourceManagerMain.java

/*
 * 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 org.apache.oodt.cas.resource.system;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.lang.reflect.Constructor;

public class ResourceManagerMain {

    private static final Logger logger = LoggerFactory.getLogger(ResourceManagerMain.class);

    public static void main(String[] args) throws Exception {
        int portNum = -1;
        String usage = "AvroRpcResourceManager --portNum <port number for xml rpc service>\n";

        for (int i = 0; i < args.length; i++) {
            if (args[i].equals("--portNum")) {
                portNum = Integer.parseInt(args[++i]);
            }
        }

        if (portNum == -1) {
            System.err.println(usage);
            System.exit(1);
        }

        String resourceManagerClass = System.getProperty("resmgr.manager",
                "org.apache.oodt.cas.resource.system.AvroRpcResourceManager");

        logger.info("Starting resource manager {} at port: {}", resourceManagerClass, portNum);

        Constructor<?> constructor = Class.forName(resourceManagerClass).getConstructor(Integer.TYPE);
        final ResourceManager manager = (ResourceManager) constructor.newInstance(portNum);
        manager.startUp();

        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                manager.shutdown();
            }
        });

        for (; ; )
            try {
                Thread.currentThread().join();
            } catch (InterruptedException ignore) {
            }
    }
}