/*******************************************************************************
 * In the Hi-WAY project we propose a novel approach of executing scientific
 * workflows processing Big Data, as found in NGS applications, on distributed
 * computational infrastructures. The Hi-WAY software stack comprises the func-
 * tional workflow language Cuneiform as well as the Hi-WAY ApplicationMaster
 * for Apache Hadoop 2.x (YARN).
 *
 * List of Contributors:
 *
 * Jörgen Brandt (HU Berlin)
 * Marc Bux (HU Berlin)
 * Ulf Leser (HU Berlin)
 *
 * Jörgen Brandt is funded by the European Commission through the BiobankCloud
 * project. Marc Bux is funded by the Deutsche Forschungsgemeinschaft through
 * research training group SOAMED (GRK 1651).
 *
 * Copyright 2014 Humboldt-Universität zu Berlin
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package de.huberlin.wbi.cuneiform.core.semanticmodel;

public class DrawHelper {

	private final CompoundExpr taskExpr;
	private final BaseBlock bindingBlock;
	private final Prototype prototype;
	
	public DrawHelper( ApplyExpr applyExpr ) {
		this( applyExpr.getTaskExpr(), applyExpr );
	}
	
	public DrawHelper( CompoundExpr taskExpr, BaseBlock bindingBlock ) {
		
		if( taskExpr == null )
			throw new NullPointerException( "Task expression must not be null." );
		
		if( bindingBlock == null )
			throw new NullPointerException( "Binding block must not be null." );
		
		this.taskExpr = taskExpr;
		this.prototype = ( ( LambdaExpr )taskExpr.getSingleExpr( 0 ) ).getPrototype();
		this.bindingBlock = bindingBlock;
	}
	
	public CompoundExpr reduceComb() {
		
		CompoundExpr ce;
		
		ce = new CompoundExpr();
		// TODO
		return ce;
	}
}
