/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.sysds.runtime.einsum;

import org.apache.commons.logging.Log;
import org.apache.sysds.runtime.matrix.data.MatrixBlock;

import java.util.List;

public class EOpNodeData extends EOpNode {
	public int matrixIdx;
	public EOpNodeData(Character c1, Character c2, Integer dim1, Integer dim2, int matrixIdx){
		super(c1,c2,dim1,dim2);
		this.matrixIdx = matrixIdx;
	}

	@Override
	public List<EOpNode> getChildren() {
		return List.of();
	}
	@Override
	public String toString() {
		return this.getClass().getSimpleName()+" ("+matrixIdx+") "+getOutputString();
	}
	@Override
	public MatrixBlock computeEOpNode(List<MatrixBlock> inputs, int numOfThreads, Log LOG) {
		return inputs.get(matrixIdx);
	}

	@Override
	public EOpNode reorderChildrenAndOptimize(EOpNode parent, Character outChar1, Character outChar2) {
		return this;
	}
}
