Package org.codehaus.groovy.ast.expr

Examples of org.codehaus.groovy.ast.expr.MethodCallExpression

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                    final ArgumentListExpression applyConstraintMethodArgumentList = new ArgumentListExpression();
                    applyConstraintMethodArgumentList.addExpression(new ConstantExpression(ConstrainedProperty.NULLABLE_CONSTRAINT));
                    applyConstraintMethodArgumentList.addExpression(new ConstantExpression(defaultNullable));

                    final Expression applyNullableConstraintMethodCallExpression = new MethodCallExpression(
                            new VariableExpression(cpName), "applyConstraint", applyConstraintMethodArgumentList);
                    final ArgumentListExpression putMethodArgumentList = new ArgumentListExpression();
                    putMethodArgumentList.addExpression(new ConstantExpression(propertyName));
                    putMethodArgumentList.addExpression(new VariableExpression(cpName));
                    final MethodCallExpression addToConstraintsMapExpression = new MethodCallExpression(
                            new VariableExpression(CONSTRAINED_PROPERTIES_PROPERTY_NAME), "put", putMethodArgumentList);
                    final BlockStatement addNullableConstraintBlock = new BlockStatement();
                    addNullableConstraintBlock.addStatement(new ExpressionStatement(declareConstrainedPropertyExpression));
                    addNullableConstraintBlock.addStatement(new ExpressionStatement(applyNullableConstraintMethodCallExpression));
                    addNullableConstraintBlock.addStatement(new ExpressionStatement(addToConstraintsMapExpression));

                    final Expression constraintsMapContainsKeyExpression = new MethodCallExpression(
                            new VariableExpression(CONSTRAINED_PROPERTIES_PROPERTY_NAME, ClassHelper.make(Map.class)),
                            "containsKey", new ArgumentListExpression(new ConstantExpression(propertyName)));
                    final BooleanExpression ifPropertyIsAlreadyConstrainedExpression = new BooleanExpression(constraintsMapContainsKeyExpression);
                    final Statement ifPropertyIsAlreadyConstrainedStatement = new IfStatement(
                            ifPropertyIsAlreadyConstrainedExpression,
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        if (noArgValidateMethod == null) {
            final BlockStatement validateMethodCode = new BlockStatement();

            final ArgumentListExpression validateInstanceArguments = new ArgumentListExpression();
            validateInstanceArguments.addExpression(new CastExpression(new ClassNode(List.class), new ConstantExpression(null)));
            final Expression callListArgValidateMethod = new MethodCallExpression(new VariableExpression("this"), VALIDATE_METHOD_NAME, validateInstanceArguments);
            validateMethodCode.addStatement(new ReturnStatement(callListArgValidateMethod));
            classNode.addMethod(new MethodNode(
                  VALIDATE_METHOD_NAME, Modifier.PUBLIC, ClassHelper.boolean_TYPE,
                  ZERO_PARAMETERS, EMPTY_CLASS_ARRAY, validateMethodCode));
        }
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        final ArgumentListExpression arguments = new ArgumentListExpression();
        for (Parameter p : methodNode.getParameters()) {
            arguments.addExpression(new VariableExpression(p.getName(), p.getType()));
        }

        MethodCallExpression callExpression = new MethodCallExpression(
                new VariableExpression("this"), methodNode.getName(), arguments);
        callExpression.setMethodTarget(methodNode);

        blockStatement.addStatement(new ReturnStatement(callExpression));

        return blockStatement;
    }
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                for (Parameter p : parameters) {
                    closureInvocationArguments.addExpression(new VariableExpression(p.getName()));
                }
            }

            final MethodCallExpression methodCallExpression = new MethodCallExpression(
                    closureExpression, "call", closureInvocationArguments);
            newMethodCode.addStatement(new ExpressionStatement(applyMethodTarget(methodCallExpression, Closure.class, Object.class)));

            final MethodNode methodNode = new MethodNode(closureProperty.getName(), Modifier.PUBLIC,
                    new ClassNode(Object.class), ZERO_PARAMETERS, EMPTY_CLASS_ARRAY, newMethodCode);
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                }
                final int numberOfAllowedMethods = allowedMethodNames.size();
                if(numberOfAllowedMethods > 0) {
                    final PropertyExpression responsePropertyExpression = new PropertyExpression(new VariableExpression("this"), "response");
                    final PropertyExpression requestMethodExpression = new PropertyExpression(requestPropertyExpression, "method");
                    BooleanExpression isValidRequestMethod = new BooleanExpression(new MethodCallExpression(requestMethodExpression,
                                                                                                            "equalsIgnoreCase",
                                                                                                            new ConstantExpression(allowedMethodNames.get(0))));
                    for(int x = 1; x < numberOfAllowedMethods; x++) {
                        isValidRequestMethod = new BooleanExpression(new BinaryExpression(isValidRequestMethod,
                                                                                          Token.newSymbol(Types.LOGICAL_OR, 0, 0),
                                                                                          new MethodCallExpression(requestMethodExpression,
                                                                                                                   "equalsIgnoreCase",
                                                                                                                   new ConstantExpression(allowedMethodNames.get(x)))));
                    }
                    final MethodCallExpression sendErrorMethodCall = new MethodCallExpression(responsePropertyExpression, "sendError", new ConstantExpression(HttpServletResponse.SC_METHOD_NOT_ALLOWED));
                    final ReturnStatement returnStatement = new ReturnStatement(new ConstantExpression(null));
                    final BlockStatement blockToSendError = new BlockStatement();
                    blockToSendError.addStatement(new ExpressionStatement(sendErrorMethodCall));
                    blockToSendError.addStatement(returnStatement);
                    final IfStatement ifIsValidRequestMethodStatement = new IfStatement(isValidRequestMethod, new ExpressionStatement(new EmptyExpression()), blockToSendError);
                 
                    checkAllowedMethodsBlock.addStatement(ifIsValidRequestMethodStatement);
                }
            }
        }
       
        final ArgumentListExpression argumentListExpression = new ArgumentListExpression();
        argumentListExpression.addExpression(new ConstantExpression(ALLOWED_METHODS_HANDLED_ATTRIBUTE_NAME));
        argumentListExpression.addExpression(new ConstantExpression(methodName));
       
        final Expression setAttributeMethodCall = new MethodCallExpression(requestPropertyExpression, "setAttribute", argumentListExpression);
       
        final BlockStatement codeToExecuteIfAttributeIsNotSet = new BlockStatement();
        codeToExecuteIfAttributeIsNotSet.addStatement(new ExpressionStatement(setAttributeMethodCall));
        codeToExecuteIfAttributeIsNotSet.addStatement(checkAllowedMethodsBlock);

        final BooleanExpression attributeIsSetBooleanExpression = new BooleanExpression(new MethodCallExpression(requestPropertyExpression, "getAttribute", new ArgumentListExpression(new ConstantExpression(ALLOWED_METHODS_HANDLED_ATTRIBUTE_NAME))));
        final Statement ifAttributeIsAlreadySetStatement = new IfStatement(attributeIsSetBooleanExpression, new EmptyStatement(), codeToExecuteIfAttributeIsNotSet);
       
        final BlockStatement code = new BlockStatement();
        code.addStatement(ifAttributeIsAlreadySetStatement);
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        final BlockStatement catchBlockCode = new BlockStatement();
        final String caughtExceptionArgumentName = "$caughtException";
        final Expression caughtExceptionVariableExpression = new VariableExpression(caughtExceptionArgumentName);
        final Expression caughtExceptionTypeExpression = new PropertyExpression(caughtExceptionVariableExpression, "class");
        final Expression thisExpression = new VariableExpression("this");
        final MethodCallExpression getExceptionHandlerMethodCall = new MethodCallExpression(thisExpression, "getExceptionHandlerMethodFor", caughtExceptionTypeExpression);
        applyDefaultMethodTarget(getExceptionHandlerMethodCall, controllerClassNode);

        final ClassNode reflectMethodClassNode = new ClassNode(Method.class);
        final String exceptionHandlerMethodVariableName = "$method";
        final Expression exceptionHandlerMethodExpression = new VariableExpression(exceptionHandlerMethodVariableName, new ClassNode(Method.class));
        final Expression declareExceptionHandlerMethod = new DeclarationExpression(
                new VariableExpression(exceptionHandlerMethodVariableName, reflectMethodClassNode), Token.newSymbol(Types.EQUALS, 0, 0), getExceptionHandlerMethodCall);
        final ArgumentListExpression invokeArguments = new ArgumentListExpression();
        invokeArguments.addExpression(thisExpression);
        invokeArguments.addExpression(caughtExceptionVariableExpression);
        final MethodCallExpression invokeExceptionHandlerMethodExpression = new MethodCallExpression(new VariableExpression(exceptionHandlerMethodVariableName), "invoke", invokeArguments);
        applyDefaultMethodTarget(invokeExceptionHandlerMethodExpression, reflectMethodClassNode);
       
        final Statement returnStatement = new ReturnStatement(invokeExceptionHandlerMethodExpression);
        final Statement throwCaughtExceptionStatement = new ThrowStatement(caughtExceptionVariableExpression);
        final Statement ifExceptionHandlerMethodExistsStatement = new IfStatement(new BooleanExpression(exceptionHandlerMethodExpression), returnStatement, throwCaughtExceptionStatement);
        catchBlockCode.addStatement(new ExpressionStatement(declareExceptionHandlerMethod));
        catchBlockCode.addStatement(ifExceptionHandlerMethodExistsStatement);

        final CatchStatement catchStatement = new CatchStatement(new Parameter(new ClassNode(Exception.class), caughtExceptionArgumentName), catchBlockCode);
        final Statement methodBody = methodNode.getCode();

        BlockStatement tryBlock = new BlockStatement();
        BlockStatement codeToHandleAllowedMethods = getCodeToHandleAllowedMethods(controllerClassNode, methodNode.getName());
        tryBlock.addStatement(codeToHandleAllowedMethods);
        tryBlock.addStatement(methodBody);

        final TryCatchStatement tryCatchStatement = new TryCatchStatement(tryBlock, new EmptyStatement());
        tryCatchStatement.addCatch(catchStatement);

        final ArgumentListExpression argumentListExpression = new ArgumentListExpression();
        argumentListExpression.addExpression(new ConstantExpression(ALLOWED_METHODS_HANDLED_ATTRIBUTE_NAME));
       
        final PropertyExpression requestPropertyExpression = new PropertyExpression(new VariableExpression("this"), "request");
        final Expression removeAttributeMethodCall = new MethodCallExpression(requestPropertyExpression, "removeAttribute", argumentListExpression);
       
        final Expression getAttributeMethodCall = new MethodCallExpression(requestPropertyExpression, "getAttribute", new ArgumentListExpression(new ConstantExpression(ALLOWED_METHODS_HANDLED_ATTRIBUTE_NAME)));
        final VariableExpression attributeValueExpression = new VariableExpression("$allowed_methods_attribute_value", ClassHelper.make(Object.class));
        final Expression initializeAttributeValue = new DeclarationExpression(
                attributeValueExpression, Token.newSymbol(Types.EQUALS, 0, 0), getAttributeMethodCall);
        final Expression attributeValueMatchesMethodNameExpression = new BinaryExpression(new ConstantExpression(methodNode.getName()),
                                                  Token.newSymbol(Types.COMPARE_EQUAL, 0, 0),
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                    }
                }
            }
           
            if (argumentIsValidateable) {
                final MethodCallExpression validateMethodCallExpression =
                        new MethodCallExpression(new VariableExpression(paramName), "validate", EMPTY_TUPLE);
                final MethodNode validateMethod =
                        commandObjectNode.getMethod("validate", new Parameter[0]);
                if (validateMethod != null) {
                    validateMethodCallExpression.setMethodTarget(validateMethod);
                }
                final Statement ifCommandObjectIsNotNullThenValidate = new IfStatement(new BooleanExpression(new VariableExpression(paramName)), new ExpressionStatement(validateMethodCallExpression), new ExpressionStatement(new EmptyExpression()));
                wrapper.addStatement(ifCommandObjectIsNotNullThenValidate);
            } else {
                // try to dynamically invoke the .validate() method if it is available at runtime...
                final Expression respondsToValidateMethodCallExpression = new MethodCallExpression(
                        new VariableExpression(paramName), "respondsTo", new ArgumentListExpression(
                                new ConstantExpression("validate")));
                final Expression validateMethodCallExpression = new MethodCallExpression(
                        new VariableExpression(paramName), "validate", new ArgumentListExpression());
                final Statement ifRespondsToValidateThenValidateStatement = new IfStatement(
                        new BooleanExpression(respondsToValidateMethodCallExpression),
                        new ExpressionStatement(validateMethodCallExpression),
                        new ExpressionStatement(new EmptyExpression()));
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            final ClassNode commandObjectNode, final String paramName, SourceUnit source) {

        final ArgumentListExpression initializeCommandObjectArguments = new ArgumentListExpression();
        initializeCommandObjectArguments.addExpression(new ClassExpression(commandObjectNode));
        initializeCommandObjectArguments.addExpression(new ConstantExpression(paramName));
        final MethodCallExpression initializeCommandObjectMethodCall = new MethodCallExpression(new VariableExpression("this"), "initializeCommandObject", initializeCommandObjectArguments);
        applyDefaultMethodTarget(initializeCommandObjectMethodCall, commandObjectNode);
       
        final Expression assignCommandObjectToParameter = new BinaryExpression(new VariableExpression(paramName), Token.newSymbol(Types.EQUALS, 0, 0), initializeCommandObjectMethodCall);
       
        wrapper.addStatement(new ExpressionStatement(assignCommandObjectToParameter));
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        final String methodParamName = param.getName();
        Expression getParamsExpression = buildGetPropertyExpression(new VariableExpression("this"), "params", classNode);
        final Expression paramsContainsKeyMethodArguments = new ArgumentListExpression(
                new ConstantExpression(requestParameterName));
        final BooleanExpression containsKeyExpression = new BooleanExpression(
                applyDefaultMethodTarget(new MethodCallExpression(getParamsExpression, "containsKey", paramsContainsKeyMethodArguments), Map.class));
        final Statement initializeParameterStatement = new ExpressionStatement(
                new DeclarationExpression(new VariableExpression(
                        methodParamName, paramTypeClassNode),
                        Token.newSymbol(Types.EQUALS, 0, 0),
                        new TernaryExpression(containsKeyExpression, buildGetMapExpression(getParamsExpression, requestParameterName) , new ConstantExpression(null))));
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            conversionMethodName = TYPE_WRAPPER_CLASS_TO_CONVERSION_METHOD_NAME.get(paramTypeClassNode);
        } else {
            conversionMethodName = paramTypeClassNode.getName();
        }
        Expression getParamsExpression = buildGetPropertyExpression(new VariableExpression("this"), "params", classNode);
        final MethodCallExpression retrieveConvertedValueExpression = new MethodCallExpression(
                getParamsExpression, conversionMethodName, paramsTypeConversionMethodArguments);
        Class<?> defaultValueClass = null; // choose any
        if("char".equals(conversionMethodName)) {
            // TypeConvertingMap.'char' method has 2 different signatures, choose the one with "Character 'char'(String name, Integer defaultValue)" signature
            defaultValueClass = Integer.class;
        }
        applyMethodTarget(retrieveConvertedValueExpression, TypeConvertingMap.class, null, defaultValueClass);

        final Expression paramsContainsKeyMethodArguments = new ArgumentListExpression(paramConstantExpression);
        final BooleanExpression containsKeyExpression = new BooleanExpression(
                applyDefaultMethodTarget(new MethodCallExpression(getParamsExpression, "containsKey", paramsContainsKeyMethodArguments), Map.class));

        final Token equalsToken = Token.newSymbol(Types.EQUALS, 0, 0);
        final VariableExpression convertedValueExpression = new VariableExpression(
                "___converted_" + methodParamName, new ClassNode(Object.class));
        final DeclarationExpression declareConvertedValueExpression = new DeclarationExpression(
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