Examples of org.apache.tapestry5.services.InvalidationListener

org.apache.tapestry5.services.InvalidationListener
Interface for objects that may cache information that can be invalidated. Invalidation occurs when external files, from which in-memory data is cached, is determined to have changed. Granularity is very limited; when any external file is found to have changed, the event is fired (with the expectation that the cleared cache will be repopulated as necessary). @see org.apache.tapestry5.services.InvalidationEventHub @since 5.1.0.0

        Validator validator = mockValidator();
        TypeCoercer coercer = mockTypeCoercer();
        FieldComponent field = newFieldComponent();
        ComponentResources resources = mockComponentResources();
        Messages containerMessages = mockMessages();
        FormSupport fs = mockFormSupport();


        Map<String, Validator> map = singletonMap("minlength", validator);


        train_getConstraintType(validator, Integer.class);

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        Messages messages = mockMessages();
        MessageFormatter formatter = mockMessageFormatter();
        Object inputValue = new Object();
        ComponentResources resources = mockComponentResources();
        Messages containerMessages = mockMessages();
        FormSupport fs = mockFormSupport();


        Map<String, Validator> map = singletonMap("required", validator);


        train_getFormValidationId(fs, "myform");

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        MessageFormatter minLengthFormatter = mockMessageFormatter();
        Object inputValue = "input value";
        ComponentResources resources = mockComponentResources();
        Messages containerMessages = mockMessages();
        Integer fifteen = 15;
        FormSupport fs = mockFormSupport();


        Map<String, Validator> map = newMap();


        map.put("required", required);
        map.put("minLength", minLength);

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        MessageFormatter formatter = mockMessageFormatter();
        Object inputValue = new Object();
        ComponentResources resources = mockComponentResources();
        Messages containerMessages = mockMessages();
        Integer five = 5;
        FormSupport fs = mockFormSupport();


        Map<String, Validator> map = singletonMap("minLength", validator);


        train_getConstraintType(validator, Integer.class);

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        Resource baseResource = new ClasspathResource(loader, "baz/Biff.class");
        Resource localized = baseResource.withExtension(TapestryConstants.TEMPLATE_EXTENSION);


        TemplateParser parser = mockTemplateParser();
        ComponentTemplate template = mockComponentTemplate();
        InvalidationListener listener = mockInvalidationListener();


        train_getComponentClassName(model, "baz.Biff");


        ComponentResourceLocator locator = mockLocator(model, english, localized);


        train_parseTemplate(parser, localized, template);


        replay();


        ComponentTemplateSourceImpl source = new ComponentTemplateSourceImpl(false, parser, locator, converter);
        source.addInvalidationListener(listener);


        assertSame(source.getTemplate(model, Locale.ENGLISH), template);


        // Check for updates (which won't be found).
        source.checkForUpdates();


        // A second pass will test the caching (the
        // parser is not invoked).


        assertSame(source.getTemplate(model, Locale.ENGLISH), template);


        verify();


        // Now, change the file and processInbound an UpdateEvent.


        touch(f);


        listener.objectWasInvalidated();


        replay();


        // Check for updates (which will be found).
        source.checkForUpdates();

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    @Test
    public void caching_and_invalidation() throws Exception
    {
        // Alas, mixing and matching live code with mocks
        ResourceDigestGenerator generator = mockResourceDigestGenerator();
        InvalidationListener listener = mockInvalidationListener();
        File f = createTestFile();
        URL url = f.toURL();
        Resource r = mockResource();


        long lastUpdated = f.lastModified();
        lastUpdated -= lastUpdated % 1000;


        train_getPath(r, PATH);
        train_toURL(r, url);


        train_requiresDigest(generator, PATH, true);
        train_generateChecksum(generator, url, DIGEST);


        replay();


        ResourceDigestManagerImpl cache = new ResourceDigestManagerImpl(generator, resourceChangeTracker);
        cache.listenForInvalidations();
        cache.addInvalidationListener(listener);


        assertEquals(cache.requiresDigest(r), true);
        assertEquals(cache.getTimeModified(r), lastUpdated);
        assertEquals(cache.getDigest(r), DIGEST);


        // No updates yet
        getService(UpdateListenerHub.class).fireCheckForUpdates();


        verify();


        Thread.sleep(1500);
        touch(f);


        lastUpdated = f.lastModified();
        lastUpdated -= lastUpdated % 1000;


        String expectedDigest = "FREDBARNEY";


        train_getPath(r, PATH);
        train_toURL(r, url);
        train_requiresDigest(generator, PATH, true);
        train_generateChecksum(generator, url, expectedDigest);


        listener.objectWasInvalidated();


        replay();


        getService(UpdateListenerHub.class).fireCheckForUpdates();

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        Resource baseResource = new ClasspathResource(loader, "baz/Biff.class");
        Resource localized = baseResource.withExtension(InternalConstants.TEMPLATE_EXTENSION);


        TemplateParser parser = mockTemplateParser();
        ComponentTemplate template = mockComponentTemplate();
        InvalidationListener listener = mockInvalidationListener();


        train_getComponentClassName(model, "baz.Biff");


        train_getBaseResource(model, baseResource);


        train_parseTemplate(parser, localized, template);


        replay();


        ComponentTemplateSourceImpl source = new ComponentTemplateSourceImpl(parser, null, converter);
        source.addInvalidationListener(listener);


        assertSame(source.getTemplate(model, Locale.ENGLISH), template);


        // Check for updates (which won't be found).
        source.checkForUpdates();


        // A second pass will test the caching (the
        // parser is not invoked).


        assertSame(source.getTemplate(model, Locale.ENGLISH), template);


        verify();


        // Now, change the file and processInbound an UpdateEvent.


        touch(f);


        listener.objectWasInvalidated();


        replay();


        // Check for updates (which will be found).
        source.checkForUpdates();

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        Resource baseResource = new ClasspathResource(loader, "baz/Biff.class");
        Resource localized = baseResource.withExtension(TapestryConstants.TEMPLATE_EXTENSION);


        TemplateParser parser = mockTemplateParser();
        ComponentTemplate template = mockComponentTemplate();
        InvalidationListener listener = mockInvalidationListener();
        ComponentTemplateLocator locator = mockComponentTemplateLocator();


        train_getComponentClassName(model, "baz.Biff");


        expect(locator.locateTemplate(model, Locale.ENGLISH)).andReturn(localized);


        train_parseTemplate(parser, localized, template);


        replay();


        ComponentTemplateSourceImpl source = new ComponentTemplateSourceImpl(parser, locator, converter);
        source.addInvalidationListener(listener);


        assertSame(source.getTemplate(model, Locale.ENGLISH), template);


        // Check for updates (which won't be found).
        source.checkForUpdates();


        // A second pass will test the caching (the
        // parser is not invoked).


        assertSame(source.getTemplate(model, Locale.ENGLISH), template);


        verify();


        // Now, change the file and processInbound an UpdateEvent.


        touch(f);


        listener.objectWasInvalidated();


        replay();


        // Check for updates (which will be found).
        source.checkForUpdates();

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        Resource baseResource = new ClasspathResource(loader, "baz/Biff.class");
        Resource localized = baseResource.withExtension(InternalConstants.TEMPLATE_EXTENSION);


        TemplateParser parser = mockTemplateParser();
        ComponentTemplate template = mockComponentTemplate();
        InvalidationListener listener = mockInvalidationListener();


        train_getComponentClassName(model, "baz.Biff");


        train_getBaseResource(model, baseResource);


        train_parseTemplate(parser, localized, template);


        replay();


        ComponentTemplateSourceImpl source = new ComponentTemplateSourceImpl(parser, null, converter);
        source.addInvalidationListener(listener);


        assertSame(source.getTemplate(model, Locale.ENGLISH), template);


        // Check for updates (which won't be found).
        source.checkForUpdates();


        // A second pass will test the caching (the
        // parser is not invoked).


        assertSame(source.getTemplate(model, Locale.ENGLISH), template);


        verify();


        // Now, change the file and process an UpdateEvent.


        touch(f);


        listener.objectWasInvalidated();


        replay();


        // Check for updates (which will be found).
        source.checkForUpdates();

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    @Test
    public void caching_and_invalidation() throws Exception
    {
        ResourceDigestGenerator generator = mockResourceDigestGenerator();
        InvalidationListener listener = mockInvalidationListener();
        File f = createTestFile();
        URL url = f.toURL();
        Resource r = mockResource();


        long lastUpdated = f.lastModified();
        lastUpdated -= lastUpdated % 1000;


        train_getPath(r, PATH);
        train_toURL(r, url);


        train_requiresDigest(generator, PATH, true);
        train_generateChecksum(generator, url, DIGEST);


        replay();


        ResourceCacheImpl cache = new ResourceCacheImpl(generator, converter);
        cache.addInvalidationListener(listener);


        assertEquals(cache.requiresDigest(r), true);
        assertEquals(cache.getTimeModified(r), lastUpdated);
        assertEquals(cache.getDigest(r), DIGEST);


        // No updates yet.


        cache.checkForUpdates();


        verify();


        Thread.sleep(1500);
        touch(f);


        lastUpdated = f.lastModified();
        lastUpdated -= lastUpdated % 1000;


        String expectedDigest = "FREDBARNEY";


        train_getPath(r, PATH);
        train_toURL(r, url);
        train_requiresDigest(generator, PATH, true);
        train_generateChecksum(generator, url, expectedDigest);


        listener.objectWasInvalidated();


        replay();


        cache.checkForUpdates();

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