/**
 * 
 */
package org.drools.integrationtests.eventgenerator.example;

import java.util.HashMap;
import java.util.Map;

import org.drools.integrationtests.eventgenerator.Event;

/**
 * @author Matthias Groch
 *
 */
public class StatusChangedEvent extends Event {
	
	public static final String[] PROPERTY_FIELD_NAMES = {"OldValue", "NewValue"};
	
	public static final int OLD_VALUE = 0;
	public static final int NEW_VALUE = 1;
	
	/**
	 * Special constructor for a statusChanged event  
	 * @param parentId The id of the corresponding site, resource, ...
	 */
	public StatusChangedEvent(String parentId, int oldValue, int newValue) {
		super(EventType.STATUSCHANGED, parentId);
		addParameters(createStatusChangedParameters(oldValue, newValue));
	}
	
	/**
	 * Special constructor for a statusChanged event  
	 * @param parentId The id of the corresponding site, resource, ...
	 * @param start The start instance of the event.
	 * @param end The end instance of the event.
	 * @param parameters The event parameters.
	 */
	public StatusChangedEvent(String parentId, long start, long end) {
		super(EventType.STATUSCHANGED, parentId, start, end);
	}
	
	/**
	 * Special constructor for a statusChanged event  
	 * @param parentId The id of the corresponding site, resource, ...
	 * @param start The start instance of the event.
	 * @param end The end instance of the event.
	 * @param parameters The event parameters.
	 */
	public StatusChangedEvent(String parentId, int oldValue, int newValue, long start, long end) {
		super(EventType.STATUSCHANGED, parentId, start, end);
		addParameters(createStatusChangedParameters(oldValue, newValue));
	}
	
	private static Map<String, String> createStatusChangedParameters(int oldValue, int newValue){
		Map<String, String> params = new HashMap<String, String>();
		params.put(PROPERTY_FIELD_NAMES[OLD_VALUE], String.valueOf(oldValue));
		params.put(PROPERTY_FIELD_NAMES[NEW_VALUE], String.valueOf(newValue));
		return params;
	}
	
	/**
	 * @return value of the oldValue parameter if such a parameter exists, null otherwise
	 */
	public String getParamOldValue() {
		if (this.getParameters().containsKey(PROPERTY_FIELD_NAMES[OLD_VALUE]))
			return this.getParamValue(PROPERTY_FIELD_NAMES[OLD_VALUE]);
		return null;
	}
	
	/**
	 * @return value of the newValue parameter if such a parameter exists, null otherwise
	 */
	public String getParamNewValue() {
		if (this.getParameters().containsKey(PROPERTY_FIELD_NAMES[NEW_VALUE]))
			return this.getParamValue(PROPERTY_FIELD_NAMES[NEW_VALUE]);
		return null;
	}
}