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jCOLIBRI is a java framework for the development of Case-Based Reasoning systems.

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/**
 * DefineNewIdsMethod.java
 * jCOLIBRI2 framework. 
 * @author Juan A. Recio-Garc�a.
 * GAIA - Group for Artificial Intelligence Applications
 * http://gaia.fdi.ucm.es
 * 07/01/2007
 */
package es.ucm.fdi.gaia.jcolibri.method.revise;

import java.util.HashMap;

import org.apache.log4j.LogManager;

import es.ucm.fdi.gaia.jcolibri.cbrcore.Attribute;
import es.ucm.fdi.gaia.jcolibri.cbrcore.CBRCase;
import es.ucm.fdi.gaia.jcolibri.cbrcore.CaseComponent;
import es.ucm.fdi.gaia.jcolibri.exception.ExecutionException;



/**
 * Defines new ids for the case components of a case. This way it can be stored in the persistence media without overwriting an existing case.
 * @author Juan A. Recio-Garcia
 *
 */
public class DefineNewIdsMethod {

	/**
	 * Changes the values of the ID attributes of a case with new ones. 
	 * This method traverses the CaseComponent tree of a case modifing the values of the ids attributes with new objects.
	 * @param _case to modify the ids 
	 * @param componentsKeys stores the new values of the IDs attributes
	 * @throws ExecutionException
	 */
	public static void defineNewIdsMethod(CBRCase _case, HashMap componentsKeys) throws ExecutionException
	{
			defineNewIds(_case.getDescription(), componentsKeys);
			defineNewIds(_case.getSolution(), componentsKeys);
			defineNewIds(_case.getJustificationOfSolution(), componentsKeys);
			defineNewIds(_case.getResult(), componentsKeys);
	}
	
	private static void defineNewIds(CaseComponent cc, HashMap componentsKeys) throws ExecutionException
	{
		if(cc == null)
			return;
		Attribute keyAtt = cc.getIdAttribute();
		Object newkeyvalue = componentsKeys.get(keyAtt);
		
		try {
			if(newkeyvalue != null)
				keyAtt.setValue(cc, newkeyvalue);

			for(java.lang.reflect.Field f: cc.getClass().getDeclaredFields())
			{
				Attribute at = new Attribute(f);
				Object o = at.getValue(cc);
				if(o instanceof CaseComponent)
					defineNewIds((CaseComponent)o, componentsKeys);
			}
		} catch (Exception e) {
			LogManager.getLogger(DefineNewIdsMethod.class).error(e);
		} 
		
	}
}