protected boolean onBeginCheck()

in ti/phase2/jars/core/src/java/org/apache/ti/compiler/internal/grammar/ActionGrammar.java [71:145]
52 lines of code
18 McCabe index (conditional complexity)

    protected boolean onBeginCheck(AnnotationInstance annotation, AnnotationInstance[] parentAnnotations,
                                   MemberDeclaration classMember)
            throws FatalCompileTimeException {
        //
        // First check the form bean type.
        //
        TypeInstance argType = getFormBeanType(annotation, classMember);
        TypeDeclaration argTypeDecl = null;

        if (! (argType instanceof DeclaredType)) {
            if (argType != null) {
                getDiagnostics().addError(annotation, "error.action-invalid-form-bean-type", argType.toString());
                argType = null;
            }
        } else {
            argTypeDecl = CompilerUtils.getDeclaration((DeclaredType) argType);
            boolean isClass = argTypeDecl instanceof ClassDeclaration;

            if (isClass && ! CompilerUtils.hasDefaultConstructor(argTypeDecl)) {
                getDiagnostics().addError(annotation, "error.action-form-bean-no-default-constructor",
                        argTypeDecl.getQualifiedName());
            }

            if (! argTypeDecl.hasModifier(Modifier.PUBLIC)) {
                getDiagnostics().addError(annotation, "error.action-form-bean-not-public",
                        argTypeDecl.getQualifiedName());
            }

            if (isClass && argTypeDecl.getDeclaringType() != null && ! argTypeDecl.hasModifier(Modifier.STATIC)) {
                getDiagnostics().addError(annotation, "error.action-form-bean-not-static",
                        argTypeDecl.getQualifiedName());
            }

            //
            // Give a warning if there is no validationErrorForward annotation and doValidation isn't set to false.
            //
            if (CompilerUtils.getAnnotationValue(annotation, VALIDATION_ERROR_FORWARD_ATTR, true) == null
                    && hasValidationAnnotations(argTypeDecl)) {
                Boolean doValidation = CompilerUtils.getBoolean(annotation, DO_VALIDATION_ATTR, true);

                if (doValidation == null || doValidation.booleanValue()) {
                    getDiagnostics().addWarning(
                            annotation, "warning.validatable-formbean-no-forward",
                            ANNOTATION_INTERFACE_PREFIX + annotation.getAnnotationType().getDeclaration().getSimpleName(),
                            VALIDATION_ERROR_FORWARD_ATTR, argTypeDecl.getQualifiedName());
                }
            }
        }

        //
        // Add this action to the FlowControllerInfo.
        //
        getFlowControllerInfo().addAction(getActionName(annotation, classMember),
                argTypeDecl != null ? argTypeDecl.getQualifiedName() : null);

        //
        // Check to make sure the 'useFormBean' attribute (reference to a member variable) matches the form declared as
        // an argument to the action method.
        //
        TypeInstance useFormBeanType = getUseFormBeanType(annotation, classMember);

        if (useFormBeanType != null && useFormBeanType instanceof DeclaredType) {
            if (argType == null) {
                String memberFormTypeName = CompilerUtils.getDeclaration((DeclaredType) useFormBeanType).getQualifiedName();
                getDiagnostics().addError(annotation, "error.action-mismatched-form", USE_FORM_BEAN_ATTR,
                        memberFormTypeName);
            } else if (! CompilerUtils.isAssignableFrom(argTypeDecl, useFormBeanType)) {
                String memberFormTypeName = CompilerUtils.getDeclaration((DeclaredType) useFormBeanType).getQualifiedName();
                getDiagnostics().addError(annotation, "error.action-mismatched-form", USE_FORM_BEAN_ATTR,
                        memberFormTypeName);
            }
        }

        return true;
    }