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package com.sun.enterprise.admin.event;

import com.sun.enterprise.admin.event.AdminEvent;

//i18n import
import com.sun.enterprise.util.i18n.StringManager;

/**
 * Security Service Event - emitted by DAS after comletion of
 * create/delete/update operation on security-service element 
 * (not including subelements changes)
 * Contains action type.
 */
public class SecurityServiceEvent extends AdminEvent {

    /**
     * Constant denoting action code 
     */
    public static final int ACTION_CREATE = 1;
    public static final int ACTION_DELETE = 2;
    public static final int ACTION_UPDATE = 3;

    /**
     * Event type
     */
    static final String eventType = SecurityServiceEvent.class.getName();

    /**
     * Attributes
     */
    private int     actionType;

    // i18n StringManager
    private static StringManager localStrings = StringManager.getManager( SecurityServiceEvent.class );

    /**
     * Create a new SecurityServiceEvent.
     * @param type event type, a string representation for the event
     * @param instance name of the instance to which the event applies
     * @param action type of action - one of SecurityServiceEvent.ACTION_CREATE,
     *        SecurityServiceEvent.ACTION_DELETE, SecurityServiceEvent.ACTION_UPDATE
     * @throws IllegalArgumentException if specified action is not valid
     */
    public SecurityServiceEvent(String instance, int action) {
        this(eventType, instance, action);
    }

    /**
     * Create a new SecurityServiceEvent.
     * @param type event type, a string representation for the event
     * @param instance name of the instance to which the event applies
     * @param action type of action - one of SecurityServiceEvent.ACTION_CREATE,
     *        SecurityServiceEvent.ACTION_DELETE, SecurityServiceEvent.ACTION_UPDATE
     * @throws IllegalArgumentException if specified action is not valid
     */
    public SecurityServiceEvent(String type, String instance, int action) {
        super(type, instance);
        setAction(action);
    }

    /**
     * Get action type for this event.
     */
    public int getActionType() {
        return actionType;
    }

    /**
     * Set action to specified value. If action is not one of allowed,
     * then IllegalArgumentException is thrown.
     * @throws IllegalArgumentException if action is invalid
     */
    private void setAction(int action) {
        boolean valid = false;
        if (action==ACTION_CREATE ||
            action==ACTION_DELETE ||
            action==ACTION_UPDATE )
            valid = true;
        if (!valid) {
			String msg = localStrings.getString( "admin.event.invalid_action", ""+action );
            throw new IllegalArgumentException( msg );
        }
        this.actionType = action;
    }

}