| /* |
| * 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.instructions.cp; |
| |
| import java.util.StringTokenizer; |
| |
| import org.apache.sysds.lops.DataGen; |
| import org.apache.sysds.lops.Lop; |
| import org.apache.sysds.runtime.DMLRuntimeException; |
| import org.apache.sysds.runtime.controlprogram.context.ExecutionContext; |
| import org.apache.sysds.runtime.instructions.InstructionUtils; |
| import org.apache.sysds.runtime.matrix.data.MatrixBlock; |
| import org.apache.sysds.runtime.matrix.operators.Operator; |
| |
| public class StringInitCPInstruction extends UnaryCPInstruction { |
| public static final String DELIM = " "; |
| |
| private final long _rlen; |
| private final long _clen; |
| private final String _data; |
| |
| private StringInitCPInstruction(Operator op, CPOperand in, CPOperand out, long rows, long cols, |
| int blen, String data, String opcode, String inst) { |
| super(CPType.StringInit, op, in, out, opcode, inst); |
| _rlen = rows; |
| _clen = cols; |
| _data = data; |
| } |
| |
| public long getRows() { |
| return _rlen; |
| } |
| |
| public long getCols() { |
| return _clen; |
| } |
| |
| public static StringInitCPInstruction parseInstruction(String str) { |
| String opcode = InstructionUtils.getOpCode(str); |
| if( !opcode.equals(DataGen.SINIT_OPCODE) ) |
| throw new DMLRuntimeException("Unsupported opcode: "+opcode); |
| //parse instruction |
| String[] s = InstructionUtils.getInstructionPartsWithValueType ( str ); |
| InstructionUtils.checkNumFields( s, 5 ); |
| CPOperand out = new CPOperand(s[s.length-1]); // output is specified by the last operand |
| long rows = (s[1].contains( Lop.VARIABLE_NAME_PLACEHOLDER)?-1:Double.valueOf(s[1]).longValue()); |
| long cols = (s[2].contains( Lop.VARIABLE_NAME_PLACEHOLDER)?-1:Double.valueOf(s[2]).longValue()); |
| int blen = Integer.parseInt(s[3]); |
| String data = s[4]; |
| return new StringInitCPInstruction(null, null, out, rows, cols, blen, data, opcode, str); |
| } |
| |
| @Override |
| public void processInstruction( ExecutionContext ec ) { |
| //setup output matrix |
| String outName = output.getName(); |
| MatrixBlock outBlk = new MatrixBlock((int)_rlen, (int)_clen, false); |
| |
| //init tokenizer |
| StringTokenizer st = new StringTokenizer(_data, DELIM); |
| int len = st.countTokens(); |
| |
| //check consistent sizes |
| if( len != _rlen*_clen ) |
| throw new DMLRuntimeException("Invalid matrix string intialization: dimensions=["+_rlen+"x"+_clen+"] vs numValues="+len); |
| |
| //parse input data string and init matrix |
| for( int i=0; i<len; i++ ){ |
| String sval = st.nextToken(); |
| Double dval = Double.parseDouble(sval); |
| int rix = (int) (i / _clen); |
| int cix = (int) (i % _clen); |
| outBlk.quickSetValue(rix, cix, dval); |
| } |
| |
| //examine right output representation |
| outBlk.recomputeNonZeros(); |
| outBlk.examSparsity(); |
| |
| //put output into symbol table |
| ec.setMatrixOutput(outName, outBlk); |
| } |
| } |