Examples of org.apache.tapestry5.plastic.MethodAdvice

org.apache.tapestry5.plastic.MethodAdvice
MethodAdvice is a special callback that is threaded into the implementation of a method. The advice recieves a {@link MethodInvocation}, which gives the advice the ability to change parameters or return values or thrown exceptions. In many cases, new behavior is added around the method invocation with affecting it; common examples include logging, null checks, transaction management, or security checks.

    public void multiple_validators_via_specification() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator required = mockValidator();
        Validator minLength = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        Messages messages = mockMessages();
        MessageFormatter requiredFormatter = mockMessageFormatter();
        MessageFormatter minLengthFormatter = mockMessageFormatter();
        Object inputValue = "input value";

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    @Test
    public void validator_with_constraint() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        Messages messages = mockMessages();
        MessageFormatter formatter = mockMessageFormatter();
        Object inputValue = new Object();
        ComponentResources resources = mockComponentResources();

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        }


        // Let subclasses do more.
        configure(config);


        renderSupport.addInit("autocompleter", new JSONArray(id, menuId, link.toAbsoluteURI(), config));
    }

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        "class", "t-autocomplete-menu");
        writer.end();


        Link link = resources.createEventLink(EVENT_NAME);


        JSONObject config = new JSONObject();
        config.put("paramName", PARAM_NAME);
        config.put("indicator", loaderId);


        if (resources.isBound("minChars"))
            config.put("minChars", minChars);


        if (resources.isBound("frequency"))
            config.put("frequency", frequency);


        if (resources.isBound("tokens"))
        {
            for (int i = 0; i < tokens.length(); i++)
            {
                config.accumulate("tokens", tokens.substring(i, i + 1));
            }
        }


        // Let subclasses do more.
        configure(config);

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        final ConfigAttributeHolder confAttrHolder = createConfigAttributeDefinitionField(plasticClass, annotation);
        
        PlasticMethod beginRenderMethod = plasticClass.introduceMethod(TransformConstants.BEGIN_RENDER_DESCRIPTION);


        final SecurityChecker secChecker = this.securityChecker;
        MethodAdvice beginRenderAdvice = new MethodAdvice() {
          
          public void advise(MethodInvocation invocation) {
            
            invocation.proceed();
                final InterceptorStatusToken statusTokenVal = secChecker.checkBefore(confAttrHolder);
                final ComponentResources componentResources = invocation.getInstanceContext().get(ComponentResources.class);
            componentResources.storeRenderVariable(STATUS_TOKEN, statusTokenVal);            
            }
        };


        beginRenderMethod.addAdvice(beginRenderAdvice);


        // ---------------- END TRANSFORMATION ------------------------




        PlasticMethod cleanupRenderMethod = plasticClass.introduceMethod(TransformConstants.CLEANUP_RENDER_DESCRIPTION);


        MethodAdvice cleanupRenderAdvice = new MethodAdvice() {
          
          public void advise(MethodInvocation invocation) {
              invocation.proceed();


              final ComponentResources componentResources = invocation.getInstanceContext().get(ComponentResources.class);

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        final Secured annotation = method.getAnnotation(Secured.class);
        //final String configField = createConfigAttributeDefinitionField(transformation, annotation);
        final ConfigAttributeHolder confAttrHolder = createConfigAttributeDefinitionField(plasticClass, annotation);


        final SecurityChecker secChecker = this.securityChecker;
        MethodAdvice securedMethodAdvice = new MethodAdvice() {
          
          public void advise(MethodInvocation invocation) {
            
              InterceptorStatusToken statusTokenVal = secChecker.checkBefore(confAttrHolder);
              tokenFieldHandle.set(invocation.getInstance(), statusTokenVal);

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        {
            if (m.getAnnotation(CommitAfter.class) != null)
            {
                PersistenceContext annotation = receiver.getMethodAnnotation(m, PersistenceContext.class);


                MethodAdvice advice =
                        annotation == null ? shared : new CommitAfterMethodAdvice(manager, annotation);


                receiver.adviseMethod(m, advice);
            }
        }

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        for (final PlasticMethod method : plasticClass
                .getMethodsWithAnnotation(CommitAfter.class))
        {
            PersistenceContext annotation = method.getAnnotation(PersistenceContext.class);


            MethodAdvice advice = annotation == null ? shared : new CommitAfterMethodAdvice(manager, annotation);


            method.addAdvice(advice);
        }
    }

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    public static MethodAdvice toPlasticMethodAdvice(final org.apache.tapestry5.ioc.MethodAdvice iocMethodAdvice,
                                                     final AnnotationProvider methodAnnotationProvider)
    {
        assert iocMethodAdvice != null;


        return new MethodAdvice()
        {
            public void advise(final MethodInvocation invocation)
            {
                org.apache.tapestry5.ioc.Invocation iocInvocation = new org.apache.tapestry5.ioc.Invocation()
                {

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        if (methods.isEmpty())
        {
            return;
        }


        final MethodAdvice loggingAdvice = new LoggingAdvice(model.getLogger(), exceptionTracker);


        for (PlasticMethod method : methods)
        {
            method.addAdvice(loggingAdvice);
        }

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