Examples of org.drools.core.util.asm.ClassFieldInspector

org.drools.core.util.asm.ClassFieldInspector
Visit a POJO user class, and extract the property getter methods that are public, in the order in which they are declared actually in the class itself (not using introspection). This may be enhanced in the future to allow annotations or perhaps external meta data configure the order of the indexes, as this may provide fine tuning options in special cases.

            def.setClassName( concrete.getName() );
            if ( concrete.getSuperclass() != null ) {
                def.setSuperClass( concrete.getSuperclass().getName() );
            }


            ClassFieldInspector inspector = new ClassFieldInspector(concrete);
            Map<String, Method> methods = inspector.getGetterMethods();
            Map<String, Method> setters = inspector.getSetterMethods();
            int j = 0;
            Map<String,TypeFieldDescr> fields = new HashMap<String,TypeFieldDescr>();
            for ( String fieldName : methods.keySet() ) {
                if ( asTrait && ( "core".equals(fieldName) || "fields".equals(fieldName) ) ) {
                    continue;
                }
                if ( !inspector.isNonGetter( fieldName ) && setters.keySet().contains( fieldName ) ) {


                    Position position = null;
                    if ( ! concrete.isInterface() ) {
                        try {
                            Field fld = concrete.getDeclaredField( fieldName );

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                     ! GeneratedFact.class.isAssignableFrom( existingDeclarationClass ) &&
                     ! type.getTypeClassDef().getFields().isEmpty()
                        ) {
                    try {
                        Class existingClass = pkgRegistry.getPackage().getTypeResolver().resolveType( typeDescr.getType().getFullName() );
                        ClassFieldInspector cfi = new ClassFieldInspector( existingClass );


                        int fieldCount = 0;
                        for ( String existingFieldName : cfi.getFieldTypesField().keySet() ) {
                            if ( ! cfi.isNonGetter( existingFieldName ) && ! "class".equals( existingFieldName ) && cfi.getSetterMethods().containsKey( existingFieldName ) ) {
                                if ( ! typeDescr.getFields().containsKey( existingFieldName ) ) {
                                    type.setValid(false);
                                    kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr, "New declaration of "+typeDescr.getType().getFullName() +
                                                                                                  " does not include field " + existingFieldName ) );
                                } else {
                                    String fldType = cfi.getFieldTypes().get( existingFieldName ).getName();
                                    fldType = TypeDeclarationUtils.toBuildableType( fldType, kbuilder.getRootClassLoader() );
                                    TypeFieldDescr declaredField = typeDescr.getFields().get( existingFieldName );
                                    if ( ! fldType.equals( type.getTypeClassDef().getField( existingFieldName ).getTypeName() ) ) {
                                        type.setValid(false);
                                        kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr, "New declaration of "+typeDescr.getType().getFullName() +
                                                                                                      " redeclared field " + existingFieldName + " : \n" +
                                                                                                      "existing : " + fldType + " vs declared : " + declaredField.getPattern().getObjectType() ) );
                                    } else {
                                        fieldCount++;
                                    }


                                }
                            }
                        }


                        if ( fieldCount != typeDescr.getFields().size() ) {
                            kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr, "New declaration of "+typeDescr.getType().getFullName()
                                                                                          +" can't declaredeclares a different set of fields \n" +
                                                                                          "existing : " + cfi.getFieldTypesField() + "\n" +
                                                                                          "declared : " + typeDescr.getFields() ));


                        }
                    } catch ( IOException e ) {
                        e.printStackTrace();

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        if ( inferFields ) {
            // not novel, but only an empty declaration was provided.
            // after inheriting the fields from supertypes, now we fill in the locally declared fields
            try {
                Class existingClass = TypeDeclarationUtils.getExistingDeclarationClass( typeDescr, pkgRegistry );
                ClassFieldInspector inspector = new ClassFieldInspector( existingClass );
                for (String name : inspector.getGetterMethods().keySet()) {
                    // classFieldAccessor requires both getter and setter
                    if (inspector.getSetterMethods().containsKey(name)) {
                        if (!inspector.isNonGetter(name) && !"class".equals(name)) {
                            TypeFieldDescr inheritedFlDescr = new TypeFieldDescr(
                                    name,
                                    new PatternDescr(
                                            inspector.getFieldTypes().get(name).getName()));
                            inheritedFlDescr.setInherited(!Modifier.isAbstract( inspector.getGetterMethods().get( name ).getModifiers() ));


                            if (!tDescr.getFields().containsKey(inheritedFlDescr.getFieldName()))
                                tDescr.getFields().put(inheritedFlDescr.getFieldName(),
                                                       inheritedFlDescr);
                        }

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                    superKlass = registry.getTypeResolver().resolveType(fullSuper);
                } else {
                    // if the supertype has not been declared, and we have got so far, it means that this class is not novel
                    superKlass = resolver.resolveType( fullSuper );
                }
                ClassFieldInspector inspector = new ClassFieldInspector(superKlass);
                for (String name : inspector.getGetterMethods().keySet()) {
                    // classFieldAccessor requires both getter and setter
                    if (inspector.getSetterMethods().containsKey(name)) {
                        if (!inspector.isNonGetter(name) && !"class".equals(name)) {
                            TypeFieldDescr inheritedFlDescr = new TypeFieldDescr(
                                    name,
                                    new PatternDescr(
                                            inspector.getFieldTypes().get(name).getName()));
                            inheritedFlDescr.setInherited(!Modifier.isAbstract(inspector.getGetterMethods().get(name).getModifiers()));


                            if (!fieldMap.containsKey(inheritedFlDescr.getFieldName()))
                                fieldMap.put(inheritedFlDescr.getFieldName(),
                                             inheritedFlDescr);
                        }

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        // look for the class externally
        if (!isSuperClassDeclared || isSuperClassTagged) {
            try {
                Class superKlass = registry.getTypeResolver().resolveType(fullSuper);
                ClassFieldInspector inspector = new ClassFieldInspector(superKlass);
                for (String name : inspector.getGetterMethods().keySet()) {
                    // classFieldAccessor requires both getter and setter
                    if (inspector.getSetterMethods().containsKey(name)) {
                        if (!inspector.isNonGetter(name) && !"class".equals(name)) {
                            TypeFieldDescr inheritedFlDescr = new TypeFieldDescr(
                                    name,
                                    new PatternDescr(
                                            inspector.getFieldTypes().get(name).getName()));
                            inheritedFlDescr.setInherited(!Modifier.isAbstract(inspector.getGetterMethods().get(name).getModifiers()));


                            if (!fieldMap.containsKey(inheritedFlDescr.getFieldName()))
                                fieldMap.put(inheritedFlDescr.getFieldName(),
                                        inheritedFlDescr);
                        }

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                return true;
            }
            if ( ! sup.getName().equals( typeDescr.getSupertTypeFullName() ) ) {
                return false;
            }
            ClassFieldInspector cfi = new ClassFieldInspector( typeClass, false );
            if ( cfi.getGetterMethods().size() != typeDescr.getFields().size() ) {
                return false;
            }
            for ( String fieldName : cfi.getFieldTypes().keySet() ) {
                if ( ! typeDescr.getFields().containsKey( fieldName ) ) {
                    return false;
                }
                String fieldTypeName = typeDescr.getFields().get( fieldName ).getPattern().getObjectType();
                Class fieldType = cfi.getFieldTypes().get( fieldName );
                if ( ! fieldTypeName.equals( fieldType.getName() ) || ! fieldTypeName.equals( fieldType.getSimpleName() ) ) {
                    return false;
                }
            }

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    private void updateTraitDefinition(TypeDeclaration type,
            Class concrete) {
        try {


            ClassFieldInspector inspector = new ClassFieldInspector(concrete);
            Map<String, Method> methods = inspector.getGetterMethods();
            Map<String, Method> setters = inspector.getSetterMethods();
            int j = 0;
            for (String fieldName : methods.keySet()) {
                if ("core".equals(fieldName) || "fields".equals(fieldName)) {
                    continue;
                }
                if (!inspector.isNonGetter(fieldName) && setters.keySet().contains(fieldName)) {


                    Class ret = methods.get(fieldName).getReturnType();
                    FieldDefinition field = new FieldDefinition();
                    field.setName(fieldName);
                    field.setTypeName(ret.getName());

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                    // except if the POJO was previously generated/compiled and saved into the kjar
                    if (!configuration.isPreCompiled() &&
                        !GeneratedFact.class.isAssignableFrom(existingDeclarationClass) && !type.getTypeClassDef().getFields().isEmpty()) {
                        try {
                            Class existingClass = pkgRegistry.getPackage().getTypeResolver().resolveType( typeDescr.getType().getFullName() );
                            ClassFieldInspector cfi = new ClassFieldInspector( existingClass );


                            int fieldCount = 0;
                            for ( String existingFieldName : cfi.getFieldTypesField().keySet() ) {
                                if ( ! cfi.isNonGetter( existingFieldName ) && ! "class".equals( existingFieldName ) && cfi.getSetterMethods().containsKey( existingFieldName ) ) {
                                    if ( ! typeDescr.getFields().containsKey( existingFieldName ) ) {
                                        type.setValid(false);
                                        this.results.add(new TypeDeclarationError(typeDescr, "New declaration of "+typeDescr.getType().getFullName() +
                                                                                             " does not include field " + existingFieldName ) );
                                    } else {
                                        String fldType = cfi.getFieldTypes().get( existingFieldName ).getName();
                                        TypeFieldDescr declaredField = typeDescr.getFields().get( existingFieldName );
                                        if ( ! fldType.equals( type.getTypeClassDef().getField( existingFieldName ).getTypeName() ) ) {
                                            type.setValid(false);
                                            this.results.add(new TypeDeclarationError(typeDescr, "New declaration of "+typeDescr.getType().getFullName() +
                                                                                                 " redeclared field " + existingFieldName + " : \n" +
                                                                                                 "existing : " + fldType + " vs declared : " + declaredField.getPattern().getObjectType() ) );
                                        } else {
                                            fieldCount++;
                                        }


                                    }
                                }
                            }


                            if ( fieldCount != typeDescr.getFields().size() ) {
                                this.results.add(new TypeDeclarationError(typeDescr, "New declaration of "+typeDescr.getType().getFullName()
                                                                                     +" can't declaredeclares a different set of fields \n" +
                                                                                     "existing : " + cfi.getFieldTypesField() + "\n" +
                                                                                     "declared : " + typeDescr.getFields() ));


                            }
                        } catch ( IOException e ) {
                            e.printStackTrace();

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                return true;
            }
            if ( ! sup.getName().equals( typeDescr.getSupertTypeFullName() ) ) {
                return false;
            }
            ClassFieldInspector cfi = new ClassFieldInspector( typeClass, false );
            if ( cfi.getGetterMethods().size() != typeDescr.getFields().size() ) {
                return false;
            }
            for ( String fieldName : cfi.getFieldTypes().keySet() ) {
                if ( ! typeDescr.getFields().containsKey( fieldName ) ) {
                    return false;
                }
                String fieldTypeName = typeDescr.getFields().get( fieldName ).getPattern().getObjectType();
                Class fieldType = cfi.getFieldTypes().get( fieldName );
                if ( ! fieldTypeName.equals( fieldType.getName() ) || ! fieldTypeName.equals( fieldType.getSimpleName() ) ) {
                    return false;
                }
            }

View Full Code Here


        // look for the class externally
        if ( !isSuperClassDeclared || isSuperClassTagged ) {
            try {
                Class superKlass = registry.getTypeResolver().resolveType( fullSuper );
                ClassFieldInspector inspector = new ClassFieldInspector( superKlass );
                for ( String name : inspector.getGetterMethods().keySet() ) {
                    // classFieldAccessor requires both getter and setter
                    if ( inspector.getSetterMethods().containsKey( name ) ) {
                        if ( !inspector.isNonGetter( name ) && !"class".equals( name ) ) {
                            TypeFieldDescr inheritedFlDescr = new TypeFieldDescr(
                                                                                  name,
                                                                                  new PatternDescr(
                                                                                                    inspector.getFieldTypes().get( name ).getName() ) );
                            inheritedFlDescr.setInherited( !Modifier.isAbstract( inspector.getGetterMethods().get( name ).getModifiers() ) );
                            inheritedFlDescr.setIndex( inspector.getFieldNames().size() + inspector.getFieldNames().get( name ) );


                            if ( !fieldMap.containsKey( inheritedFlDescr.getFieldName() ) ) fieldMap.put( inheritedFlDescr.getFieldName(),
                                                                                                          inheritedFlDescr );
                        }
                    }

View Full Code Here

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Related Classes of org.drools.core.util.asm.ClassFieldInspector

org.drools.base.BaseClassFieldReader

org.drools.base.BaseClassFieldWriter

org.drools.base.ClassFieldAccessorFactory

org.drools.compiler.builder.impl.ClassDefinitionFactory

org.drools.compiler.builder.impl.ClassHierarchyManager

org.drools.compiler.builder.impl.TypeDeclarationBuilder

org.drools.compiler.builder.impl.TypeDeclarationFactory

org.drools.compiler.builder.impl.TypeDeclarationUtils

org.drools.compiler.compiler.PackageBuilder

org.drools.compiler.PackageBuilder

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