Examples of org.drools.asm.ClassWriter

org.drools.asm.ClassWriter
A {@link ClassVisitor} that generates classes in bytecode form. Moreprecisely this visitor generates a byte array conforming to the Java class file format. It can be used alone, to generate a Java class "from scratch", or with one or more {@link ClassReader ClassReader} and adapter class visitorto generate a modified class from one or more existing Java classes. @author Eric Bruneton

                                                      IllegalAccessException,
                                                      InvocationTargetException,
                                                      InstantiationException,
                                                      NoSuchFieldException {


        ClassWriter cw = new ClassWriter( true );


        this.buildClassHeader( cw,
                               classDef );


        // Building fields
        for ( FieldDefinition fieldDef : classDef.getFieldsDefinitions() ) {
            this.buildField( cw,
                             fieldDef );
        }


        // Building default constructor
        this.buildDefaultConstructor( cw,
                                      classDef );


        // Building methods
        for ( FieldDefinition fieldDef : classDef.getFieldsDefinitions() ) {
            this.buildGetMethod( cw,
                                 classDef,
                                 fieldDef );
            this.buildSetMethod( cw,
                                 classDef,
                                 fieldDef );
        }


        this.buildEquals( cw,
                          classDef );
        this.buildHashCode( cw,
                            classDef );


        this.buildToString( cw,
                            classDef );


        cw.visitEnd();


        return cw.toByteArray();
    }

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                              final String className,
                              final Method getterMethod,
                              final Class< ? > fieldType,
                              final boolean isInterface) throws Exception {


        final ClassWriter cw = new ClassWriter( true );


        final Class< ? > superClass = getReaderSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );


        //        buildConstructor( superClass,
        //                          className,
        //                          cw );


        build3ArgConstructor( superClass,
                              className,
                              cw );


        buildGetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        cw );


        cw.visitEnd();


        return cw.toByteArray();
    }

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                              final String className,
                              final Method getterMethod,
                              final Class< ? > fieldType,
                              final boolean isInterface) throws Exception {


        final ClassWriter cw = new ClassWriter( true );


        final Class< ? > superClass = getWriterSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );


        build3ArgConstructor( superClass,
                              className,
                              cw );


        buildSetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        fieldType,
                        cw );


        cw.visitEnd();


        return cw.toByteArray();
    }

View Full Code Here

    }


    protected static byte[] dump(final Class clazz,
                                 final String className) throws Exception {


        final ClassWriter cw = new ClassWriter( true );


        buildClassHeader( clazz,
                          className,
                          cw );


        buildConstructor( clazz,
                          className,
                          cw );


        buildField( ShadowProxyFactory.DELEGATE_FIELD_NAME,
                    Type.getDescriptor( clazz ),
                    cw );


        final Method getShadowed = ShadowProxy.class.getDeclaredMethod( GET_SHADOWED_OBJECT,
                                                                        new Class[]{} );
        final Method setShadowed = ShadowProxy.class.getDeclaredMethod( SET_SHADOWED_OBJECT,
                                                                        new Class[]{Object.class} );
        buildSimpleGetMethod( ShadowProxyFactory.DELEGATE_FIELD_NAME,
                              clazz,
                              getShadowed,
                              className,
                              clazz,
                              cw );


        buildSetShadowedObject( clazz,
                                className,
                                setShadowed,
                                cw );


        if ( Collection.class.isAssignableFrom( clazz ) ) {
            buildCollectionClass( clazz,
                                  className,
                                  cw );
        } else if ( Map.class.isAssignableFrom( clazz ) ) {
            buildMapClass( clazz,
                           className,
                           cw );
        } else {
            buildRegularClass( clazz,
                               className,
                               cw );
        }


        return cw.toByteArray();
    }

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                        final String className,
                        final Method getterMethod,
                        final Class fieldType,
                        final boolean isInterface) throws Exception {


        final ClassWriter cw = new ClassWriter( true );


        final Class superClass = getSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );


        //        buildConstructor( superClass,
        //                          className,
        //                          cw );


        build3ArgConstructor( superClass,
                              className,
                              cw );


        buildGetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        cw );


        cw.visitEnd();


        return cw.toByteArray();
    }

View Full Code Here

                               final String className,
                               final Method getterMethod,
                               final Class fieldType,
                               final boolean isInterface) throws Exception {


        final ClassWriter cw = new ClassWriter( true );


        final Class superClass = getSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );


        //        buildConstructor( superClass,
        //                          className,
        //                          cw );


        build3ArgConstructor( superClass,
                              className,
                              cw );


        buildGetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        cw );


        cw.visitEnd();


        return cw.toByteArray();
    }

View Full Code Here

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Related Classes of org.drools.asm.ClassWriter

org.drools.base.ClassFieldAccessorFactory

org.drools.base.ClassFieldExtractorFactory

org.drools.base.ShadowProxyFactory

org.drools.factmodel.ClassBuilder

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