bundles/org.simantics.document.server/src/org/simantics/document/server/request/ServerSCLValueRequest.java

   1 package org.simantics.document.server.request;
   2
   3 import java.util.Map;
   4
   5 import org.simantics.databoard.Bindings;
   6 import org.simantics.db.ReadGraph;
   7 import org.simantics.db.Resource;
   8 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
   9 import org.simantics.db.common.request.IndexRoot;
  10 import org.simantics.db.common.request.PossibleTypedParent;
  11 import org.simantics.db.common.request.UnaryRead;
  12 import org.simantics.db.exception.DatabaseException;
  13 import org.simantics.db.layer0.scl.AbstractExpressionCompilationContext;
  14 import org.simantics.db.layer0.scl.AbstractExpressionCompilationRequest;
  15 import org.simantics.db.layer0.util.RuntimeEnvironmentRequest2;
  16 import org.simantics.db.layer0.variable.Variable;
  17 import org.simantics.document.base.ontology.DocumentationResource;
  18 import org.simantics.document.server.request.ServerSCLValueRequest.CompilationContext;
  19 import org.simantics.layer0.Layer0;
  20 import org.simantics.scl.compiler.common.names.Name;
  21 import org.simantics.scl.compiler.constants.StringConstant;
  22 import org.simantics.scl.compiler.elaboration.expressions.EApply;
  23 import org.simantics.scl.compiler.elaboration.expressions.EConstant;
  24 import org.simantics.scl.compiler.elaboration.expressions.ELiteral;
  25 import org.simantics.scl.compiler.elaboration.expressions.EVariable;
  26 import org.simantics.scl.compiler.elaboration.expressions.Expression;
  27 import org.simantics.scl.compiler.elaboration.modules.SCLValue;
  28 import org.simantics.scl.compiler.environment.Environment;
  29 import org.simantics.scl.compiler.environment.Environments;
  30 import org.simantics.scl.compiler.environment.specification.EnvironmentSpecification;
  31 import org.simantics.scl.compiler.runtime.RuntimeEnvironment;
  32 import org.simantics.scl.compiler.top.SCLExpressionCompilationException;
  33 import org.simantics.scl.compiler.types.Type;
  34 import org.simantics.scl.compiler.types.Types;
  35 import org.simantics.scl.compiler.types.kinds.Kinds;
  36 import org.simantics.scl.runtime.SCLContext;
  37 import org.simantics.scl.runtime.function.Function1;
  38 import org.simantics.structural2.scl.ComponentTypeProperty;
  39 import org.simantics.structural2.scl.FindPossibleComponentTypeRequest;
  40 import org.simantics.structural2.scl.ReadComponentTypeInterfaceRequest;
  41 import org.simantics.utils.datastructures.Pair;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 public class ServerSCLValueRequest extends AbstractExpressionCompilationRequest<CompilationContext, Variable> {
  46
  47         private final Pair<Resource,Resource> componentTypeAndRoot;
  48         private final Resource literal;
  49     protected String possibleExpectedValueType;
  50
  51         public static class CompilationContext extends AbstractExpressionCompilationContext {
  52                 public final Map<String, ComponentTypeProperty> propertyMap;
  53
  54                 public CompilationContext(RuntimeEnvironment runtimeEnvironment,
  55                                 Map<String, ComponentTypeProperty> propertyMap) {
  56                         super(runtimeEnvironment);
  57                         this.propertyMap = propertyMap;
  58                 }
  59         }
  60
  61         private ServerSCLValueRequest(Pair<Resource,Resource> componentTypeAndRoot, Resource literal, String possibleExpectedValueType) {
  62                 assert(literal != null);
  63                 this.literal = literal;
  64                 this.componentTypeAndRoot = componentTypeAndRoot;
  65                 this.possibleExpectedValueType = possibleExpectedValueType;
  66         }
  67
  68         public ServerSCLValueRequest(ReadGraph graph, Variable context) throws DatabaseException {
  69                 this(getComponentTypeAndRoot(graph, context), context.getRepresents(graph), resolveExpectedValueType(graph, context.getPredicateResource(graph)));
  70         }
  71
  72         public ServerSCLValueRequest(ReadGraph graph, Resource s, Resource o, Resource p) throws DatabaseException {
  73                 this(getComponentTypeAndRoot(graph, s), o, resolveExpectedValueType(graph, p));
  74         }
  75
  76         private static Pair<Resource,Resource> getComponentTypeAndRoot(ReadGraph graph, Variable property)  throws DatabaseException {
  77                 Variable parent = property.getParent(graph);
  78                 Resource represents = parent.getRepresents(graph);
  79                 if(represents != null) {
  80                         Resource type = graph.syncRequest(new FindPossibleComponentTypeRequest(represents));
  81                         if(type != null) {
  82                                 Resource root = graph.syncRequest(new IndexRoot(type));
  83                                 //System.err.println("getComponentTypeAndRoot1 " + property.getURI(graph) + " => " + graph.getPossibleURI(type) + " " + graph.getPossibleURI(root));
  84                                 return Pair.make(type, root);
  85                         }
  86                 }
  87                 while(represents == null) {
  88                         parent = parent.getParent(graph);
  89                         represents = parent.getPossibleRepresents(graph);
  90                 }
  91 //              Resource root = graph.syncRequest(new IndexRoot(property.getRepresents(graph)));
  92         Resource componentType = parent.getType(graph);
  93         Resource root = graph.syncRequest(new IndexRoot(parent.getRepresents(graph)));
  94         //System.err.println("getComponentTypeAndRoot2 " + property.getURI(graph) + " => " + graph.getPossibleURI(componentType) + " " + graph.getPossibleURI(root));
  95                 return Pair.make(componentType, root);
  96         }
  97
  98         private static Pair<Resource,Resource> getComponentTypeAndRoot(ReadGraph graph, Resource component)  throws DatabaseException {
  99                 if(component != null) {
 100                         Resource type = graph.syncRequest(new FindPossibleComponentTypeRequest(component));
 101                         if(type != null) {
 102                                 Resource root = graph.syncRequest(new IndexRoot(type));
 103           //      System.err.println("getComponentTypeAndRoot3 " + graph.getPossibleURI(component) + " => " + graph.getPossibleURI(type) + " " + graph.getPossibleURI(root));
 104                                 return Pair.make(type, root);
 105                         } else {
 106                                 Resource doc = graph.syncRequest(new PossibleTypedParent(component, DocumentationResource.getInstance(graph).Document));
 107                                 Resource componentType = graph.getSingleType(doc);
 108                 Resource root = graph.syncRequest(new IndexRoot(doc));
 109             //    System.err.println("getComponentTypeAndRoot4 " + graph.getPossibleURI(component) + " => " + graph.getPossibleURI(componentType) + " " + graph.getPossibleURI(root));
 110                                 return Pair.make(componentType, root);
 111                         }
 112                 }
 113                 throw new IllegalStateException();
 114         }
 115
 116         public static Object compileAndEvaluate(ReadGraph graph, Variable context) throws DatabaseException {
 117                 SCLContext sclContext = SCLContext.getCurrent();
 118         Object oldGraph = sclContext.get("graph");
 119                 try {
 120                         Function1<Variable,Object> exp = compile(graph, context);
 121                         sclContext.put("graph", graph);
 122                         return exp.apply(context);
 123                 } catch (DatabaseException e) {
 124                         throw (DatabaseException)e;
 125                 } catch (Throwable t) {
 126                         throw new DatabaseException(t);
 127                 } finally {
 128             sclContext.put("graph", oldGraph);
 129                 }
 130         }
 131
 132         public static Function1<Variable, Object> compile(ReadGraph graph, Variable context) throws DatabaseException {
 133             return graph.syncRequest(new ServerSCLValueRequest(graph, context), TransientCacheListener.<Function1<Variable,Object>>instance());
 134         }
 135
 136         public static Function1<Variable, Object> compile(ReadGraph graph, Resource s, Resource o, Resource p) throws DatabaseException {
 137             return graph.syncRequest(new ServerSCLValueRequest(graph, s, o, p), TransientCacheListener.<Function1<Variable,Object>>instance());
 138         }
 139
 140         @Override
 141         protected String getExpressionText(ReadGraph graph)
 142                         throws DatabaseException {
 143                 Layer0 L0 = Layer0.getInstance(graph);
 144                 return graph.getRelatedValue(literal, L0.SCLValue_expression, Bindings.STRING);
 145         }
 146
 147         protected RuntimeEnvironmentRequest2 getRuntimeEnvironmentRequest(Resource componentType, Resource indexRoot) {
 148                 return new RuntimeEnvironmentRequest2(componentType, indexRoot) {
 149                         @Override
 150                         protected void fillEnvironmentSpecification(
 151                                         EnvironmentSpecification environmentSpecification) {
 152                         }
 153                 };
 154         }
 155
 156         @Override
 157         protected CompilationContext getCompilationContext(ReadGraph graph)
 158                         throws DatabaseException {
 159                 return graph.syncRequest(new UnaryRead<Pair<Resource,Resource>,CompilationContext>(componentTypeAndRoot) {
 160                         @Override
 161                         public CompilationContext perform(ReadGraph graph)
 162                                         throws DatabaseException {
 163                                 RuntimeEnvironment runtimeEnvironment = graph.syncRequest(getRuntimeEnvironmentRequest(parameter.first, parameter.second));
 164                                 Map<String, ComponentTypeProperty> propertyMap =
 165                                                 graph.syncRequest(new ReadComponentTypeInterfaceRequest(parameter.first, runtimeEnvironment.getEnvironment()),
 166                                                                 TransientCacheListener.<Map<String, ComponentTypeProperty>>instance());
 167                                 return new CompilationContext(runtimeEnvironment, propertyMap);
 168                         }
 169                 });
 170         }
 171
 172         @Override
 173         protected Type getContextVariableType() {
 174                 return VARIABLE;
 175         }
 176
 177         private static Expression accessInputVariable(Environment environment,
 178                         org.simantics.scl.compiler.elaboration.expressions.Variable contextVariable) {
 179                 SCLValue variableParentFunction = environment.getValue(VARIABLE_PARENT);
 180                 return new EApply(new EConstant(variableParentFunction),
 181                                 new EApply(new EConstant(variableParentFunction),
 182                                                 new EVariable(contextVariable)));
 183         }
 184
 185     protected static Name PROPERTY_VALUE_CACHED = Name.create("Document/All", "propertyValueCached");
 186
 187     protected static Expression getProperty(Environment environment, Expression variable, String propertyName, Type type) {
 188         return new EApply(
 189                 new EConstant(environment.getValue(FROM_DYNAMIC), type),
 190                 new EApply(
 191                         new EConstant(environment.getValue(PROPERTY_VALUE_CACHED), Types.DYNAMIC),
 192                         variable,
 193                         new ELiteral(new StringConstant(propertyName))));
 194     }
 195
 196     protected static Expression getPropertyFlexible(Environment environment, Expression variable, String propertyName, Type type) {
 197         return makeTypeFlexible(environment, getProperty(environment, variable, propertyName, type), type);
 198     }
 199
 200         protected static Expression standardGetProperty(
 201                         Environment environment,
 202                         org.simantics.scl.compiler.elaboration.expressions.Variable contextVariable,
 203                         String name,
 204                         Type type) {
 205                 return getPropertyFlexible(environment, accessInputVariable(environment, contextVariable), name, type);
 206         }
 207
 208
 209         @Override
 210         protected Expression getVariableAccessExpression(
 211                         ReadGraph graph,
 212                         CompilationContext context,
 213                         org.simantics.scl.compiler.elaboration.expressions.Variable contextVariable,
 214                         String name) throws DatabaseException {
 215                 ComponentTypeProperty property = context.propertyMap.get(name);
 216                 if(property != null)
 217                         return standardGetProperty(
 218                                         context.runtimeEnvironment.getEnvironment(),
 219                                         contextVariable,
 220                                         name,
 221                                         property.type == null ? Types.metaVar(Kinds.STAR) : property.type);
 222                 else
 223                         return getSpecialVariableAccessExpression(graph, context, contextVariable, name);
 224         }
 225
 226         protected Expression getSpecialVariableAccessExpression(ReadGraph graph,
 227                         CompilationContext context,
 228                         org.simantics.scl.compiler.elaboration.expressions.Variable contextVariable,
 229                         String name) throws DatabaseException {
 230                 if(name.equals("input")) {
 231                         Environment environment = context.runtimeEnvironment.getEnvironment();
 232                         return accessInputVariable(environment, contextVariable);
 233                 }
 234                 else if(name.equals("self"))
 235                         return new EVariable(contextVariable);
 236                 else
 237                         return null;
 238         }
 239
 240     @Override
 241     protected Type getExpectedType(ReadGraph graph, CompilationContext context) throws DatabaseException {
 242         return super.getExpectedType(graph, context);
 243     }
 244
 245
 246         @Override
 247         public int hashCode() {
 248                 return 31*(31*getClass().hashCode() + literal.hashCode()) + componentTypeAndRoot.hashCode();
 249         }
 250
 251         @Override
 252         public boolean equals(Object obj) {
 253                 if(this == obj)
 254                         return true;
 255                 if(obj == null || obj.getClass() != getClass())
 256                         return false;
 257                 ServerSCLValueRequest other = (ServerSCLValueRequest)obj;
 258                 return literal.equals(other.literal) && componentTypeAndRoot.equals(other.componentTypeAndRoot);
 259         }
 260
 261     public static Function1<Variable, Object> validate(ReadGraph graph, Variable context) throws DatabaseException {
 262         return graph.syncRequest(new ServerSCLValueValidationRequest(graph, context), TransientCacheListener.<Function1<Variable,Object>>instance());
 263     }
 264
 265     public static class ServerSCLValueValidationRequest extends ServerSCLValueRequest {
 266
 267         private static final Logger LOGGER = LoggerFactory.getLogger(ServerSCLHandlerValueRequest.class);
 268
 269         public ServerSCLValueValidationRequest(ReadGraph graph, Variable context) throws DatabaseException {
 270             super(graph, context);
 271         }
 272
 273         @Override
 274         protected Type getExpectedType(ReadGraph graph, CompilationContext context) throws DatabaseException {
 275             if(possibleExpectedValueType != null) {
 276                 try {
 277                     return Environments.getType(context.runtimeEnvironment.getEnvironment(), possibleExpectedValueType);
 278                 } catch (SCLExpressionCompilationException e) {
 279                     LOGGER.error("Could not get type for " + String.valueOf(possibleExpectedValueType), e);
 280                 }
 281             }
 282             return super.getExpectedType(graph, context);
 283         }
 284     }
 285 }