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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.lops;
import org.apache.sysml.lops.LopProperties.ExecLocation;
import org.apache.sysml.lops.LopProperties.ExecType;
import org.apache.sysml.lops.compile.JobType;
import org.apache.sysml.parser.Expression.DataType;
import org.apache.sysml.parser.Expression.ValueType;
public class PickByCount extends Lop
{
public static final String OPCODE = "qpick";
public enum OperationTypes {
VALUEPICK,
RANGEPICK,
IQM,
MEDIAN
}
private OperationTypes operation;
private boolean inMemoryInput = false;
/*
* valuepick: first input is always a matrix, second input can either be a scalar or a matrix
* rangepick: first input is always a matrix, second input is always a scalar
*/
public PickByCount(Lop input1, Lop input2, DataType dt, ValueType vt, OperationTypes op) {
this(input1, input2, dt, vt, op, ExecType.MR);
}
public PickByCount(Lop input1, Lop input2, DataType dt, ValueType vt, OperationTypes op, ExecType et) {
super(Lop.Type.PickValues, dt, vt);
init(input1, input2, op, et);
}
public PickByCount(Lop input1, Lop input2, DataType dt, ValueType vt, OperationTypes op, ExecType et, boolean inMemoryInput) {
super(Lop.Type.PickValues, dt, vt);
this.inMemoryInput = inMemoryInput;
init(input1, input2, op, et);
}
private void init(Lop input1, Lop input2, OperationTypes op, ExecType et) {
this.addInput(input1);
input1.addOutput(this);
if ( input2 != null ) {
this.addInput(input2);
input2.addOutput(this);
}
operation = op;
boolean breaksAlignment = false;
boolean aligner = false;
boolean definesMRJob = false;
if ( et == ExecType.MR ) {
lps.addCompatibility(JobType.GMR);
lps.setProperties( inputs, et, ExecLocation.RecordReader, breaksAlignment, aligner, definesMRJob );
}
else {
lps.addCompatibility(JobType.INVALID);
lps.setProperties( inputs, et, ExecLocation.ControlProgram, breaksAlignment, aligner, definesMRJob );
}
}
@Override
public String toString() {
return "Operation: " + operation;
}
public OperationTypes getOperationType() {
return operation;
}
/*
* This version of getInstruction() must be called only for valuepick (MR) and rangepick
*
* Example instances:
* valupick:::0:DOUBLE:::1:DOUBLE:::2:DOUBLE
* rangepick:::0:DOUBLE:::0.25:DOUBLE:::1:DOUBLE
* rangepick:::0:DOUBLE:::Var3:DOUBLE:::1:DOUBLE
*/
@Override
public String getInstructions(int input_index1, int input_index2, int output_index)
throws LopsException
{
return getInstructions(""+input_index1, ""+input_index2, ""+output_index);
}
/*
* This version of getInstructions() must be called only for valuepick (CP), IQM (CP)
*
* Example instances:
* valuepick:::temp2:STRING:::0.25:DOUBLE:::Var1:DOUBLE
* valuepick:::temp2:STRING:::Var1:DOUBLE:::Var2:DOUBLE
*/
@Override
public String getInstructions(String input1, String input2, String output) throws LopsException
{
StringBuilder sb = new StringBuilder();
sb.append( getExecType() );
sb.append( Lop.OPERAND_DELIMITOR );
sb.append( OPCODE );
sb.append( OPERAND_DELIMITOR );
sb.append( getInputs().get(0).prepInputOperand(input1));
sb.append( OPERAND_DELIMITOR );
if(operation != OperationTypes.MEDIAN) {
if ( getInputs().get(1).getDataType() == DataType.SCALAR )
sb.append( getInputs().get(1).prepScalarInputOperand(getExecType()));
else {
sb.append( getInputs().get(1).prepInputOperand(input2));
}
sb.append( OPERAND_DELIMITOR );
}
sb.append( this.prepOutputOperand(output));
sb.append( OPERAND_DELIMITOR );
sb.append(operation);
sb.append( OPERAND_DELIMITOR );
sb.append(inMemoryInput);
return sb.toString();
}
/**
* This version of getInstructions() is called for IQM, executing in CP
*
* Example instances:
* iqm:::input:::output
*/
@Override
public String getInstructions(String input, String output)
throws LopsException
{
StringBuilder sb = new StringBuilder();
sb.append( getExecType() );
sb.append( Lop.OPERAND_DELIMITOR );
sb.append( OPCODE );
sb.append( Lop.OPERAND_DELIMITOR );
sb.append( getInputs().get(0).prepInputOperand(input));
sb.append( OPERAND_DELIMITOR );
sb.append( this.prepOutputOperand(output) );
sb.append( OPERAND_DELIMITOR );
sb.append(operation);
sb.append( OPERAND_DELIMITOR );
sb.append(inMemoryInput);
return sb.toString();
}
}