bundles/org.simantics.equation/src/org/simantics/equation/stubs/EquationResource.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in 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.equation.stubs;
  13
  14
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.ReadGraph;
  17 import org.simantics.db.request.Read;
  18 import org.simantics.db.Session;
  19 import org.simantics.db.exception.DatabaseException;
  20
  21 public class EquationResource {
  22
  23     public final Resource Addition;
  24     public final Resource AggregateExpression;
  25     public final Resource Assign;
  26     public final Resource Division;
  27     public final Resource DoubleAssign;
  28     public final Resource DoubleToIntegerAssign;
  29     public final Resource Element;
  30     public final Resource ElementExpression;
  31     public final Resource Equation;
  32     public final Resource Expression;
  33     public final Resource HasA;
  34     public final Resource HasB;
  35     public final Resource HasC;
  36     public final Resource HasCoefficient;
  37     public final Resource HasElementList;
  38     public final Resource HasSource;
  39     public final Resource HasTarget;
  40     public final Resource HasVariable;
  41     public final Resource IntegerAssign;
  42     public final Resource Multiplication;
  43     public final Resource Number;
  44     public final Resource Operator;
  45     public final Resource ProductExpression;
  46     public final Resource ScalarPolynomial;
  47     public final Resource SecondOrderScalarPolynomial;
  48     public final Resource Subtraction;
  49     public final Resource SumExpression;
  50     public final Resource SystemOfEquations;
  51     public final Resource SystemOfExpressions;
  52
  53     public static class URIs {
  54         public static final String Addition = "http://www.simantics.org/Equation-1.0/Types/Addition";
  55         public static final String AggregateExpression = "http://www.simantics.org/Equation-1.0/Types/AggregateExpression";
  56         public static final String Assign = "http://www.simantics.org/Equation-1.0/Types/Assign";
  57         public static final String Division = "http://www.simantics.org/Equation-1.0/Types/Division";
  58         public static final String DoubleAssign = "http://www.simantics.org/Equation-1.0/Types/DoubleAssign";
  59         public static final String DoubleToIntegerAssign = "http://www.simantics.org/Equation-1.0/Types/DoubleToIntegerAssign";
  60         public static final String Element = "http://www.simantics.org/Equation-1.0/Types/Element";
  61         public static final String ElementExpression = "http://www.simantics.org/Equation-1.0/Types/ElementExpression";
  62         public static final String Equation = "http://www.simantics.org/Equation-1.0/Types/Equation";
  63         public static final String Expression = "http://www.simantics.org/Equation-1.0/Types/Expression";
  64         public static final String HasA = "http://www.simantics.org/Equation-1.0/Relations/HasA";
  65         public static final String HasB = "http://www.simantics.org/Equation-1.0/Relations/HasB";
  66         public static final String HasC = "http://www.simantics.org/Equation-1.0/Relations/HasC";
  67         public static final String HasCoefficient = "http://www.simantics.org/Equation-1.0/Relations/HasCoefficient";
  68         public static final String HasElementList = "http://www.simantics.org/Equation-1.0/Relations/HasElementList";
  69         public static final String HasSource = "http://www.simantics.org/Equation-1.0/Relations/HasSource";
  70         public static final String HasTarget = "http://www.simantics.org/Equation-1.0/Relations/HasTarget";
  71         public static final String HasVariable = "http://www.simantics.org/Equation-1.0/Relations/HasVariable";
  72         public static final String IntegerAssign = "http://www.simantics.org/Equation-1.0/Types/IntegerAssign";
  73         public static final String Multiplication = "http://www.simantics.org/Equation-1.0/Types/Multiplication";
  74         public static final String Number = "http://www.simantics.org/Equation-1.0/Types/Number";
  75         public static final String Operator = "http://www.simantics.org/Equation-1.0/Types/Operator";
  76         public static final String ProductExpression = "http://www.simantics.org/Equation-1.0/Types/ProductExpression";
  77         public static final String ScalarPolynomial = "http://www.simantics.org/Equation-1.0/Types/ScalarPolynomial";
  78         public static final String SecondOrderScalarPolynomial = "http://www.simantics.org/Equation-1.0/Types/SecondOrderScalarPolynomial";
  79         public static final String Subtraction = "http://www.simantics.org/Equation-1.0/Types/Subtraction";
  80         public static final String SumExpression = "http://www.simantics.org/Equation-1.0/Types/SumExpression";
  81         public static final String SystemOfEquations = "http://www.simantics.org/Equation-1.0/Types/SystemOfEquations";
  82         public static final String SystemOfExpressions = "http://www.simantics.org/Equation-1.0/Types/SystemOfExpressions";
  83     }
  84
  85     public static Resource getResourceOrNull(ReadGraph graph, String uri) {
  86         try {
  87             return graph.getResource(uri);
  88         } catch(DatabaseException e) {
  89             System.err.println(e.getMessage());
  90             return null;
  91         }
  92     }
  93
  94     public EquationResource(ReadGraph graph) {
  95         Addition = getResourceOrNull(graph, URIs.Addition);
  96         AggregateExpression = getResourceOrNull(graph, URIs.AggregateExpression);
  97         Assign = getResourceOrNull(graph, URIs.Assign);
  98         Division = getResourceOrNull(graph, URIs.Division);
  99         DoubleAssign = getResourceOrNull(graph, URIs.DoubleAssign);
 100         DoubleToIntegerAssign = getResourceOrNull(graph, URIs.DoubleToIntegerAssign);
 101         Element = getResourceOrNull(graph, URIs.Element);
 102         ElementExpression = getResourceOrNull(graph, URIs.ElementExpression);
 103         Equation = getResourceOrNull(graph, URIs.Equation);
 104         Expression = getResourceOrNull(graph, URIs.Expression);
 105         HasA = getResourceOrNull(graph, URIs.HasA);
 106         HasB = getResourceOrNull(graph, URIs.HasB);
 107         HasC = getResourceOrNull(graph, URIs.HasC);
 108         HasCoefficient = getResourceOrNull(graph, URIs.HasCoefficient);
 109         HasElementList = getResourceOrNull(graph, URIs.HasElementList);
 110         HasSource = getResourceOrNull(graph, URIs.HasSource);
 111         HasTarget = getResourceOrNull(graph, URIs.HasTarget);
 112         HasVariable = getResourceOrNull(graph, URIs.HasVariable);
 113         IntegerAssign = getResourceOrNull(graph, URIs.IntegerAssign);
 114         Multiplication = getResourceOrNull(graph, URIs.Multiplication);
 115         Number = getResourceOrNull(graph, URIs.Number);
 116         Operator = getResourceOrNull(graph, URIs.Operator);
 117         ProductExpression = getResourceOrNull(graph, URIs.ProductExpression);
 118         ScalarPolynomial = getResourceOrNull(graph, URIs.ScalarPolynomial);
 119         SecondOrderScalarPolynomial = getResourceOrNull(graph, URIs.SecondOrderScalarPolynomial);
 120         Subtraction = getResourceOrNull(graph, URIs.Subtraction);
 121         SumExpression = getResourceOrNull(graph, URIs.SumExpression);
 122         SystemOfEquations = getResourceOrNull(graph, URIs.SystemOfEquations);
 123         SystemOfExpressions = getResourceOrNull(graph, URIs.SystemOfExpressions);
 124     }
 125
 126     public static EquationResource getInstance(ReadGraph graph) {
 127         Session session = graph.getSession();
 128         EquationResource ret = session.peekService(EquationResource.class);
 129         if(ret == null) {
 130             ret = new EquationResource(graph);
 131             session.registerService(EquationResource.class, ret);
 132         }
 133         return ret;
 134     }
 135
 136     public static EquationResource getInstance(Session session) throws DatabaseException {
 137         EquationResource ret = session.peekService(EquationResource.class);
 138         if(ret == null) {
 139             ret = session.syncRequest(new Read<EquationResource>() {
 140                 public EquationResource perform(ReadGraph graph) throws DatabaseException {
 141                     return new EquationResource(graph);
 142                 }
 143             });
 144             session.registerService(EquationResource.class, ret);
 145         }
 146         return ret;
 147     }
 148
 149 }
 150