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Declarative Machine Learning
/*
* 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.DMLRuntimeException;
import org.apache.sysml.runtime.DMLUnsupportedOperationException;
import org.apache.sysml.runtime.instructions.Instruction;
import org.apache.sysml.runtime.matrix.data.MatrixValue;
import org.apache.sysml.runtime.matrix.mapred.CachedValueMap;
import org.apache.sysml.runtime.matrix.mapred.IndexedMatrixValue;
import org.apache.sysml.runtime.matrix.operators.Operator;
public class CSVWriteInstruction extends UnaryMRInstructionBase{
public String delim= DataExpression.DEFAULT_DELIM_DELIMITER;
public String header=null;//if null or empty string, then no header
public boolean sparse=DataExpression.DEFAULT_DELIM_SPARSE;
public CSVWriteInstruction(Operator op, byte in, byte out, String del, String hdr, boolean sps, String istr) {
super(op, in, out);
mrtype = MRINSTRUCTION_TYPE.CSVWrite;
delim=del;
header=hdr;
sparse=sps;
instString = istr;
}
public static CSVWriteInstruction parseInstruction(String str) {
Operator op = null;
byte input, output;
String[] s=str.split(Instruction.OPERAND_DELIM);
String[] in1f = s[2].split(Instruction.DATATYPE_PREFIX);
input=Byte.parseByte(in1f[0]);
String[] outf = s[3].split(Instruction.DATATYPE_PREFIX);
output=Byte.parseByte(outf[0]);
String header=s[4];
String delim=s[5];
boolean sparse=Boolean.parseBoolean(s[6]);
return new CSVWriteInstruction(op, input, output, delim, header, sparse, str);
}
@Override
public void processInstruction(Class valueClass,
CachedValueMap cachedValues, IndexedMatrixValue tempValue,
IndexedMatrixValue zeroInput, int blockRowFactor, int blockColFactor)
throws DMLUnsupportedOperationException, DMLRuntimeException {
throw new DMLRuntimeException("CSVWriteInstruction.processInstruction should never be called");
}
}