Package org.drools.rule

Examples of org.drools.rule.TypeDeclaration

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        if (expr.startsWith("new ")) {
            int argsStart = expr.indexOf('(');
            if (argsStart > 0) {
                String className = expr.substring(4, argsStart).trim();
                Class<?> typeClass = findClassByName(context, className);
                TypeDeclaration typeDeclaration = typeClass == null ? null : context.getPackageBuilder().getTypeDeclaration(typeClass);
                if (typeDeclaration != null) {
                    ConsequenceMetaData.Statement statement = new ConsequenceMetaData.Statement(ConsequenceMetaData.Statement.Type.INSERT, typeClass);
                    context.getRule().getConsequenceMetaData().addStatement(statement);

                    String constructorParams = expr.substring(argsStart+1, expr.indexOf(')')).trim();
                    List<String> args = splitArgumentsList(constructorParams);
                    ClassDefinition classDefinition = typeDeclaration.getTypeClassDef();
                    List<FactField> fields = classDefinition.getFields();
                    if (args.size() == fields.size()) {
                        for (int i = 0; i < args.size(); i++) {
                            statement.addField(fields.get(i).getName(), args.get(i));
                        }
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                                             final long recency,
                                             final ObjectTypeConf conf,
                                             final InternalWorkingMemory workingMemory,
                                             final SessionEntryPoint wmEntryPoint) {
        if ( conf != null && conf.isEvent() ) {
            TypeDeclaration type = conf.getTypeDeclaration();
            long timestamp;
            if ( type.getTimestampExtractor() != null ) {
                if ( Date.class.isAssignableFrom( type.getTimestampExtractor().getExtractToClass() ) ) {
                    timestamp = ((Date) type.getTimestampExtractor().getValue( workingMemory,
                                                                               object )).getTime();
                } else {
                    timestamp = type.getTimestampExtractor().getLongValue( workingMemory,
                                                                           object );
                }
            } else {
                timestamp = workingMemory.getTimerService().getCurrentTime();
            }
            long duration = 0;
            if ( type.getDurationExtractor() != null ) {
                duration = type.getDurationExtractor().getLongValue( workingMemory,
                                                                     object );
            }
            return new EventFactHandle( id,
                                        object,
                                        recency,
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            declaredMask = Long.MAX_VALUE;
            return;
        }
       
        Class objectClass = ((ClassObjectType)objectType).getClassType();       
        TypeDeclaration typeDeclaration = context.getRuleBase().getTypeDeclaration(objectClass);
        if ( typeDeclaration == null || !typeDeclaration.isPropertyReactive() ) {
            // if property specific is not on, then accept all modification propagations
            declaredMask = Long.MAX_VALUE;            
        } else {
            List<String> settableProperties = getSettableProperties(context.getRuleBase(), objectClass);
            declaredMask = calculateDeclaredMask(settableProperties);
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        init();
    }

    private void init() {
        TypeDeclaration thingType = new TypeDeclaration( Thing.class.getName() );
        thingType.setKind( TypeDeclaration.Kind.TRAIT );
        thingType.setTypeClass( Thing.class );
        ClassDefinition def = new ClassDefinition();
        def.setClassName( thingType.getTypeClass().getName() );
        def.setDefinedClass( Thing.class );
        addTrait( def );

        ClassDefinition individualDef = new ClassDefinition();
        individualDef.setClassName( Entity.class.getName() );
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                        // add type declarations
                        for ( TypeDeclaration newDecl : newPkg.getTypeDeclarations().values() ) {
                            lastType = newDecl.getTypeClassName();


                            TypeDeclaration typeDeclaration = this.classTypeDeclaration.get( newDecl.getTypeClassName() );
                            if ( typeDeclaration == null ) {
                                String className = newDecl.getTypeClassName();

                                byte [] def = ((JavaDialectRuntimeData) newPkg.getDialectRuntimeRegistry().getDialectData( "java" )).getClassDefinition(
                                        JavaDialectRuntimeData.convertClassToResourcePath( className )
                                );

                                Class<?> definedKlass = registerAndLoadTypeDefinition( className, def );

                                if ( definedKlass == null && typeDeclaration.isNovel() ) {
                                    throw new RuntimeException( "Registering null bytes for class " + className );
                                }


                                newDecl.getTypeClassDef().setDefinedClass( definedKlass );
                                newDecl.setTypeClass( definedKlass );

                                this.classTypeDeclaration.put( className, newDecl );
                                typeDeclaration = newDecl;
                            } else {
                                Class<?> definedKlass = typeDeclaration.getTypeClass();

                                newDecl.getTypeClassDef().setDefinedClass( definedKlass );
                                newDecl.setTypeClass( definedKlass );

                                mergeTypeDeclarations( typeDeclaration,
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        public TypeDeclaration candidate = null;
        public int             score     = Integer.MAX_VALUE;
    }

    public TypeDeclaration getTypeDeclaration( Class<?> clazz ) {
        TypeDeclaration typeDeclaration = this.classTypeDeclaration.get( clazz.getName() );
        if (typeDeclaration == null) {
            // check super classes and keep a score of how up in the hierarchy is there a declaration
            TypeDeclarationCandidate candidate = checkSuperClasses( clazz );
            // now check interfaces
            candidate = checkInterfaces( clazz,
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        return typeDeclaration;
    }

    private TypeDeclarationCandidate checkSuperClasses( Class<?> clazz ) {

        TypeDeclaration typeDeclaration = null;
        Class<?> current = clazz.getSuperclass();
        int score = 0;
        while ( typeDeclaration == null && current != null ) {
            score++;
            typeDeclaration = this.classTypeDeclaration.get( current.getName() );
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            TypeDeclarationCandidate baseline,
            int level ) {
        TypeDeclarationCandidate candidate = null;
        if (baseline == null || level < baseline.score) {
            // search
            TypeDeclaration typeDeclaration;
            for (Class<?> ifc : clazz.getInterfaces()) {
                typeDeclaration = this.classTypeDeclaration.get( ifc.getName() );
                if (typeDeclaration != null) {
                    candidate = new TypeDeclarationCandidate();
                    candidate.candidate = typeDeclaration;
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                                                     final InternalWorkingMemory workingMemory,
                                                     final SessionEntryPoint entryPoint) {
        if ( conf != null && conf.isEvent() ) {
            // later we need to centralize the following code snippet in a common method
            // shared by all fact handle factory implementations
            TypeDeclaration type = conf.getTypeDeclaration();
            long timestamp = workingMemory.getSessionClock().getCurrentTime();
            long duration = 0;
            if ( type.getDurationExtractor() != null ) {
                duration = type.getDurationExtractor().getLongValue( workingMemory,
                                                                     object );
            }
            return new Jsr94EventFactHandle( id,
                                             object,
                                             recency,
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                                                     final Object object,
                                                     final long recency,
                                                     final ObjectTypeConf conf,
                                                     final InternalWorkingMemory workingMemory) {
        if ( conf != null && conf.isEvent() ) {
            TypeDeclaration type = conf.getTypeDeclaration();
            long timestamp;
            if ( type.getTimestampExtractor() != null ) {
                if ( Date.class.isAssignableFrom( type.getTimestampExtractor().getExtractToClass() ) ) {
                    timestamp = ((Date) type.getTimestampExtractor().getValue( workingMemory,
                                                                               object )).getTime();
                } else {
                    timestamp = type.getTimestampExtractor().getLongValue( workingMemory,
                                                                           object );
                }
            } else {
                timestamp = workingMemory.getTimerService().getCurrentTime();
            }
            long duration = 0;
            if ( type.getDurationExtractor() != null ) {
                duration = type.getDurationExtractor().getLongValue( workingMemory,
                                                                     object );
            }
            return new EventFactHandle( id,
                                        object,
                                        recency,
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Related Classes of org.drools.rule.TypeDeclaration

  • org.drools.base.ClassObjectType
  • org.drools.base.DefaultKnowledgeHelper
  • org.drools.base.ModifyInterceptor
  • org.drools.common.AbstractRuleBase
  • org.drools.compiler.PackageBuilder
  • org.drools.compiler.PackageBuilderTest
  • org.drools.compiler.TypeDeclarationMergingTest
  • org.drools.compiler.TypeDeclarationTest
  • org.drools.factmodel.MapCore
  • org.drools.factmodel.traits.TraitField
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