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package com.sun.enterprise.admin.mbeans;

import javax.management.ObjectName;
import javax.management.MBeanServerConnection;

/**
 * Provides for determining the state of servers within the
 * scope of this domain
 *
 * @author Sreenivas Munnangi
 */

public interface DomainStatusMBean {

    /**
     * attribute name for state
     */
    public static final String DOMAIN_STATUS_STATE = "state";

    /**
     * name of this mbean
     */
    public static final String DOMAIN_STATUS_PROPS = "name=domain-status";

    /**
     * type of the Notification emitted when the status of a server changes
     */
    public final String SERVER_STATUS_NOTIFICATION_TYPE = 
	"com.sun.appserv.management.status.ServerStatusChanged";

    /**
     * key within the Notification's Map of type
     * SERVER_STATUS_NOTIFICATION_TYPE which yields the serverName
     */
    public final String SERVER_NAME_KEY = "ServerName";

    // methods

    /**
     * get the current state of the given server
     * @return Integer the current value of the state
     */
    public int getstate(String serverName) throws Exception;
    
    /**
     * set the current state of the given server
     */
    public void setstate(String serverName, Integer state) throws Exception;
    
    /**
     * get the mBean server connection for the given server
     */
    public MBeanServerConnection getServerMBeanServerConnection(String serverName) throws Exception;
    
}