bundles/org.simantics.structural2/src/org/simantics/structural2/variables/ActualConnectionDescriptor.java

   1 package org.simantics.structural2.variables;
   2
   3 import java.util.Collection;
   4
   5 import org.simantics.databoard.Bindings;
   6 import org.simantics.databoard.util.URIStringUtils;
   7 import org.simantics.db.ReadGraph;
   8 import org.simantics.db.Resource;
   9 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
  10 import org.simantics.db.common.request.UnaryRead;
  11 import org.simantics.db.common.utils.NameUtils;
  12 import org.simantics.db.exception.DatabaseException;
  13 import org.simantics.db.layer0.variable.Variable;
  14 import org.simantics.layer0.Layer0;
  15 import org.simantics.modeling.ModelingResources;
  16 import org.simantics.structural.stubs.StructuralResource2;
  17 import org.simantics.structural2.DefinedUCInterfaceMap;
  18 import org.simantics.structural2.Functions;
  19 import org.simantics.structural2.Functions.InterfaceResolution;
  20 import org.simantics.structural2.utils.StructuralUtils.StructuralComponentClass;
  21 import org.simantics.structural2.variables.ConnectionBrowser.IsLeafType;
  22
  23 /*
  24  * This connection descriptor
  25  *
  26  * -has not been lifted into interface
  27  * -has a structural configuration defined as resources
  28  * -might not be drilled
  29  *
  30  * Note: these are constructed after climb (before drill) phase of the connection browser. This means that
  31  * the component can still contain sub structure during connection browsing. This means that some descriptors
  32  * are not final and are replaced by correct descriptors during drill phase.
  33  *
  34  */
  35 class ActualConnectionDescriptor extends AbstractVariableConnectionPointDescriptor {
  36
  37         /*
  38          * This is the nearest known ancestor variable
  39          */
  40         final Variable root;
  41         /*
  42          * A component on variable path under the root variable.
  43          */
  44         final Resource component;
  45         /*
  46          * TODO
  47          */
  48         final Resource componentType;
  49         /*
  50          * The connection point that has type of the component as its domain
  51          */
  52         final Resource cp;
  53
  54         public ActualConnectionDescriptor(Variable root, Resource component, Resource componentType, Resource cp) {
  55                 this.root = root;
  56                 this.component = component;
  57                 this.componentType = componentType;
  58                 this.cp = cp;
  59         }
  60
  61         static class ActualConnectionDescriptorInterfaceDescription extends UnaryRead<ActualConnectionDescriptor, Collection<InterfaceResolution>> {
  62
  63                 public ActualConnectionDescriptorInterfaceDescription(ActualConnectionDescriptor desc) {
  64                         super(desc);
  65                 }
  66
  67                 @Override
  68                 public Collection<InterfaceResolution> perform(ReadGraph graph) throws DatabaseException {
  69
  70 //                      ConnectionBrowser.reportDescriptor(graph, parameter);
  71
  72                 /*
  73                  * The componentType is the possibly replaced (STR.ReplaceableDefinedComponentType) type
  74                  */
  75                 StructuralComponentClass clazz = StructuralComponentClass.get(graph, parameter.componentType);
  76                 if(StructuralComponentClass.PRIMITIVE.equals(clazz)) {
  77                         return null;
  78                 } else if(StructuralComponentClass.DEFINED.equals(clazz)) {
  79                         final Collection<InterfaceResolution> interfaces = graph.syncRequest(new DefinedUCInterfaceMap(parameter.componentType));
  80                         if(interfaces != null) return interfaces;
  81                         else return Functions.BUILTIN_STRUCTURAL_CPS;
  82                 } else if(StructuralComponentClass.REPLACEABLE.equals(clazz)) {
  83                         throw new DatabaseException("ConnectionBrowser does not support nested replaceable defined structural types.");
  84                 } else {
  85                         return Functions.computeInterfacePaths(graph, parameter.getVariable(graph).getParent(graph));
  86                 }
  87
  88                 }
  89
  90         }
  91
  92         @Override
  93         public boolean isLeaf(ReadGraph graph) throws DatabaseException {
  94
  95                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
  96                 Resource type = graph.getPossibleType(component, STR.Component);
  97                 return type != null ? graph.syncRequest(new IsLeafType(type)) : false;
  98
  99         }
 100
 101         @Override
 102         public Collection<InterfaceResolution> getInterfaceDescription(ReadGraph graph) throws DatabaseException {
 103                 return graph.syncRequest(new ActualConnectionDescriptorInterfaceDescription(this), TransientCacheAsyncListener.<Collection<InterfaceResolution>>instance());
 104         }
 105
 106         public Resource getConnectionPointResource(ReadGraph graph) throws DatabaseException {
 107                 return cp;
 108         }
 109
 110         static class ComputeVariable extends UnaryRead<ActualConnectionDescriptor, Variable> {
 111
 112                 public ComputeVariable(ActualConnectionDescriptor desc) {
 113                         super(desc);
 114                 }
 115
 116                 @Override
 117                 public Variable perform(ReadGraph graph) throws DatabaseException {
 118
 119                 Variable c = ConnectionBrowser.resolve(graph, parameter.root, parameter.component);
 120                 if(c != null) {
 121                         Variable cnp = c.getPossibleProperty(graph, parameter.cp);
 122                         if(cnp != null) {
 123                                 return cnp;
 124                         }
 125                 }
 126
 127                 throw new DatabaseException("Unresolved connection point (root=" + parameter.root.getURI(graph) + ", component=" + NameUtils.getURIOrSafeNameInternal(graph, parameter.component) + ", cp=" + NameUtils.getURIOrSafeNameInternal(graph, parameter.cp) + ")");
 128
 129                 }
 130
 131         }
 132
 133         @Override
 134         public Variable getVariable(ReadGraph graph) throws DatabaseException {
 135                 return graph.syncRequest(new ComputeVariable(this), TransientCacheAsyncListener.<Variable>instance());
 136         }
 137
 138         @Override
 139         public String getURI(ReadGraph graph) throws DatabaseException {
 140
 141                 Variable var = getVariable(graph);
 142                 return var.getURI(graph);
 143
 144         }
 145
 146         @Override
 147         public boolean isFlattenedFrom(ReadGraph graph, Variable possiblyStructuralCp) throws DatabaseException {
 148
 149                 // This is a top-level configured connection point - we return true if possiblyStructuralCp is actually this connection point
 150
 151                 Resource otherCp = possiblyStructuralCp.getPossiblePredicateResource(graph);
 152                 if(!cp.equals(otherCp)) return false;
 153
 154                 Variable otherComponentVariable = possiblyStructuralCp.getParent(graph);
 155
 156                 Resource otherComponent = otherComponentVariable.getPossibleRepresents(graph);
 157                 if(!component.equals(otherComponent)) return false;
 158
 159                 Variable otherContainer = otherComponentVariable.getParent(graph);
 160                 if(otherContainer.equals(root)) return true;
 161
 162                 return getVariable(graph).equals(possiblyStructuralCp);
 163
 164         }
 165
 166         @Override
 167         public String getRelativeRVI(ReadGraph graph, Variable base) throws DatabaseException {
 168
 169         Layer0 L0 = Layer0.getInstance(graph);
 170         String cpName = graph.getRelatedValue(cp, L0.HasName, Bindings.STRING);
 171
 172         if(cpName.startsWith("/")) {
 173             ModelingResources MOD = ModelingResources.getInstance(graph);
 174             if(graph.isInstanceOf(component, MOD.ReferenceElement)) {
 175                 return "#" + cpName;
 176             }
 177             }
 178
 179                 if(root.equals(base.getParent(graph))) {
 180
 181                         StringBuilder b = new StringBuilder();
 182                         b.append("./");
 183                         String cName = graph.getRelatedValue(component, L0.HasName, Bindings.STRING);
 184                         b.append(URIStringUtils.escape(cName));
 185                         b.append("#");
 186                         b.append(cpName);
 187
 188                         return b.toString();
 189
 190                 }
 191
 192                 return super.getRelativeRVI(graph, base);
 193
 194         }
 195
 196 }