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/*
 * GMSStopEvent.java
 *
 */

package com.sun.enterprise.ee.selfmanagement.events;

import com.sun.enterprise.ee.cms.core.GroupManagementService;
import com.sun.enterprise.ee.cms.core.GMSFactory;
import com.sun.enterprise.ee.cms.core.PlannedShutdownActionFactory;
import com.sun.enterprise.ee.cms.core.PlannedShutdownAction;
import com.sun.enterprise.ee.cms.core.ActionException;
import com.sun.enterprise.ee.cms.core.Action;
import com.sun.enterprise.ee.cms.core.Signal;
import com.sun.enterprise.config.serverbeans.Cluster;
import com.sun.enterprise.config.serverbeans.ClusterHelper;
import com.sun.enterprise.server.ApplicationServer;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.config.ConfigException;
import com.sun.enterprise.admin.server.core.AdminService;
import com.sun.enterprise.ee.cms.core.GMSException;

/**
 *
 * @author Sun Micro Systems, Inc
 */
public class GMSStopEvent implements  PlannedShutdownActionFactory,
        PlannedShutdownAction {
    
    /** Creates a new instance of GMSEvent */
    private  GMSStopEvent(GMSEventProxy proxy) {
        this.proxy = proxy;
    }
    
    static synchronized GMSStopEvent getInstance(GMSEventProxy proxy) {
        if (_instance != null)
            return _instance;
        else {
            _instance = new GMSStopEvent(proxy);
            String currentServer = ApplicationServer.getServerContext().getInstanceName();
            ConfigContext context  =  AdminService.getAdminService().getAdminContext().getAdminConfigContext();
            if(AdminService.getAdminService().isDas()) {
                try {
                    Cluster[] clusters = (Cluster[]) ClusterHelper.getClustersInDomain(context);
                    for (int i = 0; i < clusters.length; i++) {
                        String clusterName = clusters[i].getName();
                        if(clusterName != null) {
                            GroupManagementService gms = GMSFactory.getGMSModule(clusterName);
                            gms.addActionFactory(_instance);
                        }
                    }
                } catch (ConfigException ex) {
                } catch (GMSException ex) {
                }
            } else {
               try {
                    if( currentServer != null) {
                        String clusterName = ((Cluster)(ClusterHelper.getClusterForInstance(context,currentServer))).getName();
                        if(clusterName != null) {
                            GroupManagementService gms = GMSFactory.getGMSModule(clusterName);
                            gms.addActionFactory(_instance);
                        }
                    }
                } catch (ConfigException ex) {
                } catch (GMSException ex) {
                }
            }
            return _instance;
        }
    }
    
    
    
    public void consumeSignal(Signal s) throws ActionException { // JoinNotificationAction
        String memberToken = s.getMemberToken();
        if (proxy != null)
            proxy.eventOccurred(memberToken,GMSEvent.STOP_EVENT);
    }
    
    public Action produceAction() {
        return _instance;
    }
    private static volatile GMSStopEvent _instance = null;
    private final GMSEventProxy proxy;
    
}
