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

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.equation.stubs;\r
  13 \r
  14 \r
  15 import org.simantics.db.Resource;\r
  16 import org.simantics.db.ReadGraph;\r
  17 import org.simantics.db.request.Read;\r
  18 import org.simantics.db.Session;\r
  19 import org.simantics.db.exception.DatabaseException;\r
  20 \r
  21 public class EquationResource {\r
  22     \r
  23     public final Resource Addition;\r
  24     public final Resource AggregateExpression;\r
  25     public final Resource Assign;\r
  26     public final Resource Division;\r
  27     public final Resource DoubleAssign;\r
  28     public final Resource DoubleToIntegerAssign;\r
  29     public final Resource Element;\r
  30     public final Resource ElementExpression;\r
  31     public final Resource Equation;\r
  32     public final Resource Expression;\r
  33     public final Resource HasA;\r
  34     public final Resource HasB;\r
  35     public final Resource HasC;\r
  36     public final Resource HasCoefficient;\r
  37     public final Resource HasElementList;\r
  38     public final Resource HasSource;\r
  39     public final Resource HasTarget;\r
  40     public final Resource HasVariable;\r
  41     public final Resource IntegerAssign;\r
  42     public final Resource Multiplication;\r
  43     public final Resource Number;\r
  44     public final Resource Operator;\r
  45     public final Resource ProductExpression;\r
  46     public final Resource ScalarPolynomial;\r
  47     public final Resource SecondOrderScalarPolynomial;\r
  48     public final Resource Subtraction;\r
  49     public final Resource SumExpression;\r
  50     public final Resource SystemOfEquations;\r
  51     public final Resource SystemOfExpressions;\r
  52     \r
  53     public static class URIs {\r
  54         public static final String Addition = "http://www.simantics.org/Equation-1.0/Types/Addition";\r
  55         public static final String AggregateExpression = "http://www.simantics.org/Equation-1.0/Types/AggregateExpression";\r
  56         public static final String Assign = "http://www.simantics.org/Equation-1.0/Types/Assign";\r
  57         public static final String Division = "http://www.simantics.org/Equation-1.0/Types/Division";\r
  58         public static final String DoubleAssign = "http://www.simantics.org/Equation-1.0/Types/DoubleAssign";\r
  59         public static final String DoubleToIntegerAssign = "http://www.simantics.org/Equation-1.0/Types/DoubleToIntegerAssign";\r
  60         public static final String Element = "http://www.simantics.org/Equation-1.0/Types/Element";\r
  61         public static final String ElementExpression = "http://www.simantics.org/Equation-1.0/Types/ElementExpression";\r
  62         public static final String Equation = "http://www.simantics.org/Equation-1.0/Types/Equation";\r
  63         public static final String Expression = "http://www.simantics.org/Equation-1.0/Types/Expression";\r
  64         public static final String HasA = "http://www.simantics.org/Equation-1.0/Relations/HasA";\r
  65         public static final String HasB = "http://www.simantics.org/Equation-1.0/Relations/HasB";\r
  66         public static final String HasC = "http://www.simantics.org/Equation-1.0/Relations/HasC";\r
  67         public static final String HasCoefficient = "http://www.simantics.org/Equation-1.0/Relations/HasCoefficient";\r
  68         public static final String HasElementList = "http://www.simantics.org/Equation-1.0/Relations/HasElementList";\r
  69         public static final String HasSource = "http://www.simantics.org/Equation-1.0/Relations/HasSource";\r
  70         public static final String HasTarget = "http://www.simantics.org/Equation-1.0/Relations/HasTarget";\r
  71         public static final String HasVariable = "http://www.simantics.org/Equation-1.0/Relations/HasVariable";\r
  72         public static final String IntegerAssign = "http://www.simantics.org/Equation-1.0/Types/IntegerAssign";\r
  73         public static final String Multiplication = "http://www.simantics.org/Equation-1.0/Types/Multiplication";\r
  74         public static final String Number = "http://www.simantics.org/Equation-1.0/Types/Number";\r
  75         public static final String Operator = "http://www.simantics.org/Equation-1.0/Types/Operator";\r
  76         public static final String ProductExpression = "http://www.simantics.org/Equation-1.0/Types/ProductExpression";\r
  77         public static final String ScalarPolynomial = "http://www.simantics.org/Equation-1.0/Types/ScalarPolynomial";\r
  78         public static final String SecondOrderScalarPolynomial = "http://www.simantics.org/Equation-1.0/Types/SecondOrderScalarPolynomial";\r
  79         public static final String Subtraction = "http://www.simantics.org/Equation-1.0/Types/Subtraction";\r
  80         public static final String SumExpression = "http://www.simantics.org/Equation-1.0/Types/SumExpression";\r
  81         public static final String SystemOfEquations = "http://www.simantics.org/Equation-1.0/Types/SystemOfEquations";\r
  82         public static final String SystemOfExpressions = "http://www.simantics.org/Equation-1.0/Types/SystemOfExpressions";\r
  83     }\r
  84     \r
  85     public static Resource getResourceOrNull(ReadGraph graph, String uri) {\r
  86         try {\r
  87             return graph.getResource(uri);\r
  88         } catch(DatabaseException e) {\r
  89             System.err.println(e.getMessage());\r
  90             return null;\r
  91         }\r
  92     }\r
  93     \r
  94     public EquationResource(ReadGraph graph) {\r
  95         Addition = getResourceOrNull(graph, URIs.Addition);\r
  96         AggregateExpression = getResourceOrNull(graph, URIs.AggregateExpression);\r
  97         Assign = getResourceOrNull(graph, URIs.Assign);\r
  98         Division = getResourceOrNull(graph, URIs.Division);\r
  99         DoubleAssign = getResourceOrNull(graph, URIs.DoubleAssign);\r
 100         DoubleToIntegerAssign = getResourceOrNull(graph, URIs.DoubleToIntegerAssign);\r
 101         Element = getResourceOrNull(graph, URIs.Element);\r
 102         ElementExpression = getResourceOrNull(graph, URIs.ElementExpression);\r
 103         Equation = getResourceOrNull(graph, URIs.Equation);\r
 104         Expression = getResourceOrNull(graph, URIs.Expression);\r
 105         HasA = getResourceOrNull(graph, URIs.HasA);\r
 106         HasB = getResourceOrNull(graph, URIs.HasB);\r
 107         HasC = getResourceOrNull(graph, URIs.HasC);\r
 108         HasCoefficient = getResourceOrNull(graph, URIs.HasCoefficient);\r
 109         HasElementList = getResourceOrNull(graph, URIs.HasElementList);\r
 110         HasSource = getResourceOrNull(graph, URIs.HasSource);\r
 111         HasTarget = getResourceOrNull(graph, URIs.HasTarget);\r
 112         HasVariable = getResourceOrNull(graph, URIs.HasVariable);\r
 113         IntegerAssign = getResourceOrNull(graph, URIs.IntegerAssign);\r
 114         Multiplication = getResourceOrNull(graph, URIs.Multiplication);\r
 115         Number = getResourceOrNull(graph, URIs.Number);\r
 116         Operator = getResourceOrNull(graph, URIs.Operator);\r
 117         ProductExpression = getResourceOrNull(graph, URIs.ProductExpression);\r
 118         ScalarPolynomial = getResourceOrNull(graph, URIs.ScalarPolynomial);\r
 119         SecondOrderScalarPolynomial = getResourceOrNull(graph, URIs.SecondOrderScalarPolynomial);\r
 120         Subtraction = getResourceOrNull(graph, URIs.Subtraction);\r
 121         SumExpression = getResourceOrNull(graph, URIs.SumExpression);\r
 122         SystemOfEquations = getResourceOrNull(graph, URIs.SystemOfEquations);\r
 123         SystemOfExpressions = getResourceOrNull(graph, URIs.SystemOfExpressions);\r
 124     }\r
 125     \r
 126     public static EquationResource getInstance(ReadGraph graph) {\r
 127         Session session = graph.getSession();\r
 128         EquationResource ret = session.peekService(EquationResource.class);\r
 129         if(ret == null) {\r
 130             ret = new EquationResource(graph);\r
 131             session.registerService(EquationResource.class, ret);\r
 132         }\r
 133         return ret;\r
 134     }\r
 135     \r
 136     public static EquationResource getInstance(Session session) throws DatabaseException {\r
 137         EquationResource ret = session.peekService(EquationResource.class);\r
 138         if(ret == null) {\r
 139             ret = session.syncRequest(new Read<EquationResource>() {\r
 140                 public EquationResource perform(ReadGraph graph) throws DatabaseException {\r
 141                     return new EquationResource(graph);\r
 142                 }\r
 143             });\r
 144             session.registerService(EquationResource.class, ret);\r
 145         }\r
 146         return ret;\r
 147     }\r
 148     \r
 149 }\r
 150 \r