Examples of org.apache.tapestry5.plastic.InstructionBuilder

org.apache.tapestry5.validator.ValidatorMacro
Simplifies the generation of method instructions for a particular method (or constructor), allowing bytecode to be created with a friendlier API that focuses on Java type names (names as they would appear in Java source) rather than JVM descriptors or internal names. In some limited cases, types may be specified as Java Class instances as well. In addition, there is good support for primitive type boxing and unboxing.
Most methods return the same instance of InstructionBuilder, allowing for a "fluid" API.
More complex functionality, such as {@linkplain #startTryCatch(TryCatchCallback) try/catch blocks}, is more like a DSL (domain specific language), and is based on callbacks. This looks better in Groovy and will be more reasonable once JDK 1.8 closures are available; in the meantime, it means some deeply nested inner classes, but helps ensure that correct bytecode is generated and helps to limit the amount of bookkeeping is necessary on the part of code using InstructionBuilder.


    @SuppressWarnings("unchecked")
    @Test
    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();

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    @SuppressWarnings("unchecked")
    @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();

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        MarkupWriter writer = factory.newPartialMarkupWriter(contentType);


        generateResponseMarkup(writer, matchesHolder.get());


        return new TextStreamResponse(contentType.toString(), writer.toString());
    }

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        train_isRequired(validator, false);
        train_getValueType(validator, Object.class);
        validator.validate(field, 5, formatter, inputValue);


        ValidatorMacro macro = mockValidatorMacro();
        train_alwaysNull(macro);


        replay();


        FieldValidatorSource source = new FieldValidatorSourceImpl(messagesSource, coercer, fs, map, macro);

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        train_isRequired(validator, false);
        train_getValueType(validator, Object.class);
        validator.validate(field, 5, formatter, inputValue);


        ValidatorMacro macro = mockValidatorMacro();
        train_alwaysNull(macro);


        replay();


        FieldValidatorSource source = new FieldValidatorSourceImpl(messagesSource, coercer, fs, map, macro);

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        train_getContainerMessages(resources, containerMessages);


        train_contains(containerMessages, "myform-fred-minlength", false);
        train_contains(containerMessages, "fred-minlength", false);


        ValidatorMacro macro = mockValidatorMacro();
        train_alwaysNull(macro);


        replay();


        FieldValidatorSource source = new FieldValidatorSourceImpl(messagesSource, coercer, fs, map, macro);

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        train_isRequired(validator, false);
        train_getValueType(validator, Object.class);
        validator.validate(field, null, formatter, inputValue);


        ValidatorMacro macro = mockValidatorMacro();
        train_alwaysNull(macro);


        replay();


        FieldValidatorSource source = new FieldValidatorSourceImpl(messagesSource, coercer, fs, map, macro);

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    @SuppressWarnings("unchecked")
    @Test
    public void simple_macro_expansion() throws Exception
    {


        ValidatorMacro macro = mockValidatorMacro();
        expect(macro.valueForMacro("combo")).andReturn("required,minlength=5");
        expect(macro.valueForMacro("required")).andReturn(null);
        expect(macro.valueForMacro("minlength")).andReturn(null);


        replay();


        FieldValidatorSourceImpl source = new FieldValidatorSourceImpl(null, null, null, null, macro);

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    @SuppressWarnings("unchecked")
    @Test
    public void macros_can_not_have_constraints() throws Exception
    {


        ValidatorMacro macro = mockValidatorMacro();
        expect(macro.valueForMacro("combo")).andReturn("required,minlength=5");


        replay();


        FieldValidatorSourceImpl source = new FieldValidatorSourceImpl(null, null, null, null, macro);

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    @Test
    public void recursive_macros_are_caught()
    {


        ValidatorMacro macro = mockValidatorMacro();
        expect(macro.valueForMacro("combo")).andReturn("required,combo");
        expect(macro.valueForMacro("required")).andReturn(null);
        expect(macro.valueForMacro("combo")).andReturn("required,combo");


        replay();


        FieldValidatorSourceImpl source = new FieldValidatorSourceImpl(null, null, null, null, macro);

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