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package com.c2kernel.events;


import com.c2kernel.common.InvalidDataException;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.persistency.RemoteMap;
import com.c2kernel.utils.Logger;

/**
 * @author Andrew Branson
 *
 * $Revision: 1.20 $
 * $Date: 2004/07/21 09:55:11 $
 *
 * Copyright (C) 2003 CERN - European Organization for Nuclear Research
 * All rights reserved.
 */

public class History extends RemoteMap<Event> {

	int lastID = -1;

    public History(int sysKey, Object locker) {
        super(sysKey, ClusterStorage.HISTORY, locker);
    }

    public Event addEvent(String agentName, String agentRole,
                    int stepTransitionId,
                    String stepName,
                    String stepPath,
                    String stepType,
                    String viewName,
                    int stepCurrentState) {
        Logger.msg(7, "History.addEvent() - creating new event for "+stepTransitionId+" on "+stepName+" in "+mSysKey);
        Event newEvent = new Event();
        newEvent.setEntitySystemKey(mSysKey);
        newEvent.setAgentName(agentName);
        newEvent.setAgentRole(agentRole);
        newEvent.setTransition(stepTransitionId);
        newEvent.setStepName(stepName);
        newEvent.setStepPath(stepPath);
        newEvent.setStepType(stepType);
        newEvent.setViewName(viewName);
        newEvent.setCurrentState(stepCurrentState);
        newEvent.setTimeStamp(Event.getGMT());
        return storeNewEvent(newEvent);
    }

    public Event addEvent(String agentName, String agentRole,
                    int stepTransitionId,
                    String stepName,
                    String stepPath,
                    String stepType,
                    String viewName,
                    int stepCurrentState,
                    String timeString) throws InvalidDataException {
        Logger.msg(7, "History.addEvent() - creating new event for "+stepTransitionId+" on "+stepName+" in "+mSysKey);
        Event newEvent = new Event();
        newEvent.setEntitySystemKey(mSysKey);
        newEvent.setAgentName(agentName);
        newEvent.setAgentRole(agentRole);
        newEvent.setTransition(stepTransitionId);
        newEvent.setStepName(stepName);
        newEvent.setStepPath(stepPath);
        newEvent.setStepType(stepType);
        newEvent.setViewName(viewName);
        newEvent.setCurrentState(stepCurrentState);
        newEvent.setTimeString(timeString);
        return storeNewEvent(newEvent);
    }

    private Event storeNewEvent(Event newEvent) {
        synchronized (this) {
            int newEventID = getLastId()+1;
            newEvent.setID(newEventID);
            put(newEvent.getName(), newEvent);
            lastID = newEventID;
            return newEvent;
        }
    }

    public Event getEvent(int id) {
    	return get(String.valueOf(id));
    }

	@Override
	public Event remove(Object key) {
		// forbidden
		return null;
	}

}