org.apache.sysml.runtime.instructions.mr.CSVReblockInstruction Maven / Gradle / Ivy

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Declarative Machine Learning

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/*
 * 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.sysml.runtime.instructions.mr;

import org.apache.sysml.parser.DataExpression;
import org.apache.sysml.runtime.instructions.Instruction;
import org.apache.sysml.runtime.matrix.operators.Operator;

public class CSVReblockInstruction extends ReblockInstruction 
{
	
	public String  delim     = DataExpression.DEFAULT_DELIM_DELIMITER;
	public boolean hasHeader = DataExpression.DEFAULT_DELIM_HAS_HEADER_ROW;
	public boolean fill      = DataExpression.DEFAULT_DELIM_FILL;
	public double  fillValue = DataExpression.DEFAULT_DELIM_FILL_VALUE;

	public CSVReblockInstruction(Operator op, byte in, byte out, int br,
			int bc, boolean hasHeader, String delim, boolean fll, double mv, String istr) {
		super(op, in, out, br, bc, false, istr);
		this.delim=delim;
		this.fill=fll;
		this.fillValue=mv;
		this.hasHeader=hasHeader;
	}

	public Instruction clone(byte in) 
	{
		// modify the input operand in the CSVReblock instruction
		String[] parts = this.instString.split(Instruction.OPERAND_DELIM);
		String[] in1f = parts[2].split(Instruction.DATATYPE_PREFIX);
		in1f[0] = Byte.toString(in);
		
		parts[2] = in1f[0] + Instruction.DATATYPE_PREFIX + in1f[1] + Instruction.VALUETYPE_PREFIX + in1f[2];

		StringBuilder sb = new StringBuilder();
		sb.append(parts[0]);
		for(int i=1; i