Examples of org.apache.tapestry5.services.MetaDataLocator

org.apache.tapestry5.services.MetaDataLocator
Used to lookup meta data concerning a particular component. The primary source of meta data is the meta data defined for the component, accessed via {@link org.apache.tapestry5.model.ComponentModel#getMeta(String)}. This includes meta data defined by base classes. When meta-data for a particular component can not be found, a search works up the containment hierarchy (to the component's container, and the container's container, and so on). If that proves unfruitful, a system of defaults is provided by configuration and matched against the containing page's logical name.
Finally, if no metadata is available, then {@link org.apache.tapestry5.ioc.services.SymbolSource#valueForSymbol(String)}is used to obtain a value. Generally speaking, if you are going to use this service to look up meta data, your should also make a contribution to the FactoryDefaults service; otherwise, you risk a runtime exception if a meta-data key can not be resolved.

    @Test
    public void check_page_not_secure() throws Exception
    {
        Request request = mockRequest();
        Response response = mockResponse();
        MetaDataLocator locator = mockMetaDataLocator();
        ComponentEventLinkEncoder encoder = newMock(ComponentEventLinkEncoder.class);


        train_isSecure(request, false);


        train_isSecure(locator, PAGE_NAME, false);

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    @Test
    public void check_redirect_needed() throws Exception
    {
        Request request = mockRequest();
        Response response = mockResponse();
        MetaDataLocator locator = mockMetaDataLocator();
        Link link = mockLink();
        ComponentEventLinkEncoder encoder = newMock(ComponentEventLinkEncoder.class);


        train_isSecure(request, false);

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    @Test(dataProvider = "check_page_security_data")
    public void check_page_security(boolean secureRequest, boolean securePage, LinkSecurity expectedLinkSecurity)
    {
        Request request = mockRequest();
        Response response = mockResponse();
        MetaDataLocator locator = mockMetaDataLocator();
        ComponentEventLinkEncoder encoder = newMock(ComponentEventLinkEncoder.class);


        train_isSecure(request, secureRequest);


        train_isSecure(locator, PAGE_NAME, securePage);

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        String strategyName = "foo";


        ComponentResources resources = mockComponentResources();
        ComponentModel model = mockComponentModel();
        PersistentFieldStrategy strat = newPersistentFieldStrategy();
        MetaDataLocator locator = mockMetaDataLocator();


        Object value = new Object();


        Map<String, PersistentFieldStrategy> strategies = newMap();
        strategies.put(strategyName, strat);

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        String nestedId = "nested";
        String fieldName = "field";


        ComponentResources resources = mockComponentResources();
        ComponentModel model = mockComponentModel();
        MetaDataLocator locator = mockMetaDataLocator();


        PersistentFieldStrategy strat = newPersistentFieldStrategy();
        Object value = new Object();


        Map<String, PersistentFieldStrategy> strategies = newMap();

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        replay();


        Map<String, String> configuration = Collections.emptyMap();


        MetaDataLocator locator = new MetaDataLocatorImpl(symbolSource, typeCoercer, modelSource, configuration);


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();


        // And check that it's cached:


        train_getCompleteId(resources, completeId);


        replay();


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();
    }

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        replay();


        Map<String, String> configuration = Collections.emptyMap();


        MetaDataLocator locator = new MetaDataLocatorImpl(symbolSource, typeCoercer, modelSource, configuration);


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();
    }

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        replay();


        Map<String, String> configuration = newMap();
        configuration.put(key, value);


        MetaDataLocator locator = new MetaDataLocatorImpl(symbolSource, typeCoercer, modelSource, configuration);


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();


        // And check that it's cached:


        train_getCompleteId(resources, completeId);


        replay();


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();
    }

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        replay();


        Map<String, String> configuration = newMap();
        configuration.put(key.toUpperCase(), value);


        MetaDataLocator locator = new MetaDataLocatorImpl(symbolSource, typeCoercer, modelSource, configuration);


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();


        // And check that it's cached:


        train_getCompleteId(resources, completeId);


        replay();


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();
    }

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        Map<String, String> configuration = newMap();
        configuration.put(key, "xxx");
        configuration.put("foo:" + key, value);


        MetaDataLocator locator = new MetaDataLocatorImpl(symbolSource, typeCoercer, modelSource, configuration);


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();


        // And check that it's cached:


        train_getCompleteId(resources, completeId);


        replay();


        assertSame(locator.findMeta(key, resources, String.class), value);


        verify();
    }

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