plugins/org.eclipse.viatra2.gtasm.patternmatcher.incremental/src/org/eclipse/viatra2/gtasm/patternmatcher/incremental/adapters/ReteContainerGTASMBuildable.java

/*******************************************************************************
 * Copyright (c) 2004-2008 Gabor Bergmann and Daniel Varro
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Gabor Bergmann - initial API and implementation
 *******************************************************************************/

package org.eclipse.viatra2.gtasm.patternmatcher.incremental.adapters;

import java.util.Map;

import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.boundary.PredicateEvaluatorNode;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.construction.ReteContainerBuildable;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.construction.RetePatternBuildException;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.construction.Stub;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.matcher.ReteEngine;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.network.Receiver;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.network.ReteContainer;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.network.Supplier;
import org.eclipse.viatra2.gtasm.patternmatcher.incremental.rete.remote.Address;
import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.asm.terms.Term;
import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.gt.GTPattern;


/**
 * @author Bergmann Gábor
 *
 */
public class ReteContainerGTASMBuildable extends ReteContainerBuildable<GTPattern> implements GTASMBuildable<Address<? extends Supplier>, Address<? extends Receiver>> {

	/**
	 * @param engine
	 * @param targetContainer
	 */
	public ReteContainerGTASMBuildable(ReteEngine<GTPattern> engine, ReteContainer targetContainer) {
		super(engine, targetContainer);
	}

	public Stub<Address<? extends Supplier>> buildGTASMTermChecker(
			Term term, 
			Map<String, Integer> variableIndices, 
			Map<String, String> variableEquivalence, 
			Integer rhsIndex, 
			Stub<Address<? extends Supplier>> stub
		) throws RetePatternBuildException 
	{
		int[] affectedIndices = new int[variableIndices.values().size()];
		int k = 0;
		for (Integer index : variableIndices.values()) affectedIndices[k++] = index;	
		
		PredicateEvaluatorNode ten = new GTASMTermEvaluatorNode(engine,
				targetContainer, term, rhsIndex, variableIndices,
				variableEquivalence, affectedIndices, stub.getVariablesTuple().getSize());
		Address<PredicateEvaluatorNode> checker = Address.of(ten);
		
		reteNet.connectRemoteNodes(stub.getHandle(), checker, true);
		
		Stub<Address<? extends Supplier>> result = new Stub<Address<? extends Supplier>>(stub, checker);
		
		return result;
	}	

	@Override
	public ReteContainerGTASMBuildable getNextContainer() {
		return new ReteContainerGTASMBuildable(engine, engine.getReteNet().getNextContainer());
	}
	
	/**
	 * No need to distinguish
	 */
	@Override
	public ReteContainerGTASMBuildable putOnTab(GTPattern effort) {
		return this;
	}
}