org.shoal.ha.group.GroupServiceFactory Maven / Gradle / Ivy
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package org.shoal.ha.group;
import org.shoal.ha.group.GroupService;
import org.shoal.ha.group.gms.GroupServiceProvider;
import java.util.concurrent.ConcurrentHashMap;
/**
* @author Mahesh Kannan
*
*/
public class GroupServiceFactory {
private ConcurrentHashMap groupHandles
= new ConcurrentHashMap();
private static final GroupServiceFactory _instance = new GroupServiceFactory();
private GroupServiceFactory() {
}
public static GroupServiceFactory getInstance() {
return _instance;
}
public synchronized GroupService getGroupService(String myName, String groupName, boolean startGMS) {
String key = makeKey(myName, groupName);
GroupServiceProvider server = groupHandles.get(key);
if (server == null) {
server = new GroupServiceProvider(myName, groupName, startGMS);
groupHandles.put(key, server);
}
return server;
}
private static String makeKey(String myName, String groupName) {
return myName + ":" + groupName;
}
public void shutdown(String myName, String groupName) {
String key = makeKey(myName, groupName);
GroupServiceProvider server = groupHandles.remove(key);
if (server != null) {
server.shutdown();
}
}
public static void main(String[] args)
throws Exception {
GroupServiceFactory factory = GroupServiceFactory.getInstance();
factory.getGroupService(args[0], args[1], true/*startGMS*/);
}
}