bundles/org.simantics.databoard/src/org/simantics/databoard/units/internal/deprecated/Unit.java

   1 /*******************************************************************************
   2  *  Copyright (c) 2010 Association for Decentralized Information Management in
   3  *  Industry THTH ry.
   4  *  All rights reserved. This program and the accompanying materials
   5  *  are made available under the terms of the Eclipse Public License v1.0
   6  *  which accompanies this distribution, and is available at
   7  *  http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  *  Contributors:
  10  *      VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.databoard.units.internal.deprecated;
  13
  14 import java.util.ArrayList;
  15
  16 import org.simantics.databoard.units.internal.UnitParseException;
  17 import org.simantics.databoard.units.internal.parser.UnitParser;
  18
  19 public class Unit {
  20
  21         UnitPart[] parts;
  22
  23         public Unit(UnitPart ... parts) {
  24                 this.parts = parts;
  25         }
  26
  27         @Override
  28         public String toString() {
  29                 StringBuilder b = new StringBuilder();
  30                 toString(b);
  31                 return b.toString();
  32         }
  33
  34         public void toString(StringBuilder b) {
  35                 if(parts.length == 0)
  36                         b.append('1');
  37                 else
  38                         for(int i=0;i<parts.length;++i) {
  39                                 if(i>0)
  40                                         b.append(".");
  41                                 parts[i].toString(b);
  42                         }
  43         }
  44
  45         public static Unit parse(String string) throws UnitParseException {
  46                 final ArrayList<UnitPart> parts = new ArrayList<UnitPart>();
  47                 UnitParser parser = new UnitParser() {
  48
  49                         @Override
  50                         public void visit(String baseUnit, int exponent) {
  51                                 parts.add(new UnitPart(baseUnit, Magnitude.unscaled, exponent));
  52                         }
  53
  54                 };
  55                 parser.unit(string, 1);
  56                 return new Unit(parts.toArray(new UnitPart[parts.size()]));
  57         }
  58
  59         public static void main(String[] args) {
  60                 try {
  61                         System.out.println(parse("m2/(s3/s)"));
  62                 } catch (UnitParseException e) {
  63                         // TODO Auto-generated catch block
  64                         e.printStackTrace();
  65                 }
  66         }
  67
  68 }