/*******************************************************************************
 * Copyright (c) 2008 SAP
 * see https://research.qkal.sap.corp/mediawiki/index.php/CoMONET
 * 
 * Date: $Date: 2009-04-23 14:54:43 +0200 (Do, 23 Apr 2009) $
 * @version $Revision: 6272 $
 * @author: $Author: c5106462 $
 *******************************************************************************/
package com.sap.furcas.parsergenerator.tcs.t2m.grammar;

import java.util.Collection;
import java.util.Iterator;

import org.eclipse.emf.ecore.EObject;

import com.sap.furcas.metamodel.FURCAS.TCS.Block;
import com.sap.furcas.metamodel.FURCAS.TCS.Property;
import com.sap.furcas.metamodel.FURCAS.TCS.Sequence;
import com.sap.furcas.metamodel.FURCAS.TCS.SequenceElement;
import com.sap.furcas.runtime.common.exceptions.MetaModelLookupException;
import com.sap.furcas.runtime.parser.exceptions.SyntaxParsingException;


/**
 * The Class BlockTypeHandler.
 */
public class BlockTypeHandler {

    /**
     * Adds the element.
     * 
     * @param element
     *            the element
     * @param buffer
     *            the buffer
     * 
     * @throws SyntaxParsingException
     *             the syntax parsing exception
     * @throws MetaModelLookupException
     *             the meta model lookup exception
     */
    public void addElement(EObject element, RuleBodyStringBuffer buffer)
            throws MetaModelLookupException {
        buffer.append('(');
        if (element instanceof Sequence) {
            Sequence sequence = (Sequence) element;

            Collection<SequenceElement> elements = sequence.getElements();
            for (Iterator<SequenceElement> iterator = elements.iterator(); iterator.hasNext();) {
                SequenceElement sequenceElement = iterator.next();
                buffer.addToRuleFragment(sequenceElement);
            }
        } else if (element instanceof Block) {
            Block block = (Block) element;
            buffer.addToRuleFragment(block.getBlockSequence());
        } else {
            throw new RuntimeException(element.getClass()
                    + " handling not implemented yet");
        }
        buffer.append(')');
    }
    
    /**
	 * Adds the element for a semantic predicated rule.
	 * 
	 * @param element
	 *            the element
	 * @param buffer
	 *            the buffer
	 * @param semanticRef
	 *            name of the semantic reference
	 * @throws SyntaxParsingException
	 *             the syntax parsing exception
	 * @throws MetaModelLookupException
	 *             the meta model lookup exception
	 */
	public void addElement(EObject element,
			SemanticRuleBodyStringBuffer buffer, String semanticRef)
			throws MetaModelLookupException {
		buffer.append('(');
		if (element instanceof Sequence) {
			Sequence sequence = (Sequence) element;

			Collection<SequenceElement> elements = sequence.getElements();
			
			for (Iterator<SequenceElement> iterator = elements.iterator(); iterator
					.hasNext();) {
				SequenceElement sequenceElement = iterator.next();
				buffer.addToRuleFragment(sequenceElement);
				if (sequenceElement instanceof Property) {
					Property prop = (Property) sequenceElement;
					String name = PropertyTypeHandler.getPropertyName(prop);
					if(semanticRef != null && name.equals(semanticRef)) {
                        buffer.append("{semRef = temp;}");
                    }
				}
			}
		} else if (element instanceof Block) {
			Block block = (Block) element;
			buffer.addToRuleFragment(block.getBlockSequence());
		} else {
			throw new RuntimeException(element.getClass()
					+ " handling not implemented yet");
		}
		buffer.append(')');
	}
}