Examples of org.apache.tapestry5.services.SyncCostBench

org.apache.tapestry5.services.ValidationMessagesSource
Tests single-thread synchronization overhead using different techniques. Note that we're fudging things a bit by getting a read lock for a write operation .... it's just that I'm more concerned about read locks (which will be very common) than about write locks (very rare). Another concern is that hotspot is going to mess up our synchronization when it see we're not really doing anything multi-threaded.
The results show that using the {@link org.apache.tapestry5.internal.annotations.Concurrent} aspect (which used a{@link java.util.concurrent.locks.ReentrantReadWriteLock} under the covers) is about 4x as expensive as just usingthe synchronized keyword. There are some anomolous results ... for example, ReadWriteLockRunner is consistently slower than ReadWriteLockAspectRunner (one would expect it to be the other way around ... must be something about how AspectJ weaves the code ... and it's use of static methods in many cases).
Well, the Concurrent aspect is gone, replaced with the {@link ConcurrentBarrier} utility.

{
    @Test
    public void response_sent() throws IOException
    {
        String encoding = "UTF-8";
        Response response = mockResponse();


        CharArrayWriter writer = new CharArrayWriter();
        PrintWriter pw = new PrintWriter(writer);


        expect(response.getPrintWriter("application/json;charset=UTF-8")).andReturn(pw);


        replay();


        JSONArray array = new JSONArray("   [ \"fred\", \"barney\" \n\n]");

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    }


    @Test
    public void unknown_validator_type()
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        ComponentResources resources = mockComponentResources();
        Messages containerMessages = mockMessages();

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    @SuppressWarnings("unchecked")
    @Test
    public void validator_with_no_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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    @SuppressWarnings("unchecked")
    @Test
    public void component_messages_overrides_validator_messages() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        MessageFormatter formatter = mockMessageFormatter();
        Object inputValue = new Object();

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    }


    @Test
    public void component_messages_overrides_validator_messages_per_form() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        MessageFormatter formatter = mockMessageFormatter();
        Object inputValue = new Object();

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    @SuppressWarnings("unchecked")
    @Test
    public void constraint_value_from_message_catalog_per() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        Messages messages = mockMessages();
        MessageFormatter formatter = mockMessageFormatter();

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    @SuppressWarnings("unchecked")
    @Test
    public void constraint_value_from_message_catalog_per_form() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        Messages messages = mockMessages();
        MessageFormatter formatter = mockMessageFormatter();

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    @SuppressWarnings("unchecked")
    @Test
    public void missing_field_validator_constraint() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        ComponentResources resources = mockComponentResources();
        Messages containerMessages = mockMessages();

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    @SuppressWarnings("unchecked")
    @Test
    public void single_validator_via_specification() throws Exception
    {
        ValidationMessagesSource messagesSource = mockValidationMessagesSource();
        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        Messages messages = mockMessages();
        MessageFormatter formatter = mockMessageFormatter();

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    @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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