| /* |
| * 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.lops; |
| |
| import org.apache.sysds.lops.LopProperties.ExecType; |
| import org.apache.sysds.common.Types.AggOp; |
| import org.apache.sysds.common.Types.DataType; |
| import org.apache.sysds.common.Types.ValueType; |
| |
| public class CumulativeOffsetBinary extends Lop |
| { |
| private AggOp _op; |
| private double _initValue = 0; |
| private boolean _broadcast = false; |
| |
| public CumulativeOffsetBinary(Lop data, Lop offsets, DataType dt, ValueType vt, AggOp op, ExecType et) |
| { |
| super(Lop.Type.CumulativeOffsetBinary, dt, vt); |
| checkSupportedOperations(op); |
| _op = op; |
| |
| init(data, offsets, dt, vt, et); |
| } |
| |
| public CumulativeOffsetBinary(Lop data, Lop offsets, DataType dt, ValueType vt, double init, boolean broadcast, AggOp op, ExecType et) |
| { |
| super(Lop.Type.CumulativeOffsetBinary, dt, vt); |
| checkSupportedOperations(op); |
| _op = op; |
| |
| //in case of Spark, CumulativeOffset includes CumulativeSplit and hence needs the init value |
| _initValue = init; |
| _broadcast = broadcast; |
| |
| init(data, offsets, dt, vt, et); |
| } |
| |
| private void init(Lop input1, Lop input2, DataType dt, ValueType vt, ExecType et) { |
| addInput(input1); |
| addInput(input2); |
| input1.addOutput(this); |
| input2.addOutput(this); |
| lps.setProperties( inputs, et); |
| } |
| |
| @Override |
| public String toString() { |
| return "CumulativeOffsetBinary"; |
| } |
| |
| private static void checkSupportedOperations(AggOp op) { |
| //sanity check for supported aggregates |
| if( !( op == AggOp.SUM || op == AggOp.PROD |
| || op == AggOp.SUM_PROD |
| || op == AggOp.MIN || op == AggOp.MAX) ) |
| { |
| throw new LopsException("Unsupported aggregate operation type: "+op); |
| } |
| } |
| |
| private String getOpcode() { |
| switch( _op ) { |
| case SUM: return "bcumoffk+"; |
| case PROD: return "bcumoff*"; |
| case SUM_PROD: return "bcumoff+*"; |
| case MIN: return "bcumoffmin"; |
| case MAX: return "bcumoffmax"; |
| default: return null; |
| } |
| } |
| |
| @Override |
| public String getInstructions(String input1, String input2, String output) |
| { |
| StringBuilder sb = new StringBuilder(); |
| sb.append( getExecType() ); |
| sb.append( OPERAND_DELIMITOR ); |
| sb.append( getOpcode() ); |
| sb.append( OPERAND_DELIMITOR ); |
| sb.append( getInputs().get(0).prepInputOperand(input1) ); |
| sb.append( OPERAND_DELIMITOR ); |
| sb.append( getInputs().get(1).prepInputOperand(input2) ); |
| sb.append( OPERAND_DELIMITOR ); |
| sb.append( this.prepOutputOperand(output) ); |
| |
| if( getExecType() == ExecType.SPARK ) { |
| sb.append( OPERAND_DELIMITOR ); |
| sb.append( _initValue ); |
| sb.append( OPERAND_DELIMITOR ); |
| sb.append( _broadcast ); |
| } |
| |
| return sb.toString(); |
| } |
| } |