Examples of freemarker.cache.TemplateCache

freemarker.cache.TemplateCache
A class that performs caching and on-demand loading of the templates. The actual loading is delegated to a {@link TemplateLoader}. Also, various constructors provide you with convenient caches with predefined behavior. Typically you don't use this class directly - in normal circumstances it is hidden behind a {@link Configuration}. However, the {@link CacheStorage} it uses can be set with{@link freemarker.template.Configuration#setCacheStorage(CacheStorage)} @author Attila Szegedi

        createTemplateCache();
        loadBuiltInSharedVariables();
    }


    private void createTemplateCache() {
        cache = new TemplateCache(getDefaultTemplateLoader(), this);
        cache.clear(); // for fully BC behavior
        cache.setDelay(5000);
    }

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        cache.clear(); // for fully BC behavior
        cache.setDelay(5000);
    }
    
    private void recreateTemplateCacheWith(TemplateLoader loader, CacheStorage storage) {
        TemplateCache oldCache = cache;
        cache = new TemplateCache(loader, storage, this);
        cache.clear(); // for fully BC behavior
        cache.setDelay(oldCache.getDelay());
        cache.setLocalizedLookup(localizedLookup);
    }

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    }


    public void testCachedException() throws Exception
    {
        MockTemplateLoader loader = new MockTemplateLoader();
        TemplateCache cache = new TemplateCache(loader, new StrongCacheStorage());
        cache.setDelay(1000L);
        loader.setThrowException(true);
        try
        {
            cache.getTemplate("t", Locale.getDefault(), "", true);
            fail();
        }
        catch(IOException e)
        {
            assertEquals("mock IO exception", e.getMessage());
            assertEquals(1, loader.getFindCount());
            try
            {
                cache.getTemplate("t", Locale.getDefault(), "", true);
                fail();
            }
            catch(IOException e2)
            {
                // Still 1 - returned cached exception
                assertEquals("There was an error loading the template on an " +
                        "earlier attempt; it is attached as a cause", e2.getMessage());
                assertSame(e, e2.getCause());
                assertEquals(1, loader.getFindCount());
                try
                {
                    Thread.sleep(1100L);
                    cache.getTemplate("t", Locale.getDefault(), "", true);
                    fail();
                }
                catch(IOException e3)
                {
                    // Cache had to retest

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    }
    
    public void testCachedNotFound() throws Exception
    {
        MockTemplateLoader loader = new MockTemplateLoader();
        TemplateCache cache = new TemplateCache(loader, new StrongCacheStorage());
        cache.setDelay(1000L);
        cache.setLocalizedLookup(false);
        assertNull(cache.getTemplate("t", Locale.getDefault(), "", true));
        assertEquals(1, loader.getFindCount());
        assertNull(cache.getTemplate("t", Locale.getDefault(), "", true));
        // Still 1 - returned cached exception
        assertEquals(1, loader.getFindCount());
        Thread.sleep(1100L);
        assertNull(cache.getTemplate("t", Locale.getDefault(), "", true));
        // Cache had to retest
        assertEquals(2, loader.getFindCount());
    }

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    private boolean secure = false;
    private boolean tolerateParsingProblems = false;
    private int tagSyntax = AUTO_DETECT_TAG_SYNTAX;


    public Configuration() {
        cache = new TemplateCache();
        cache.setConfiguration(this);
        cache.setDelay(5000);
        loadBuiltInSharedVariables();
    }

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        createTemplateCache(loader, cache.getCacheStorage());
    }


    private void createTemplateCache(TemplateLoader loader, CacheStorage storage)
    {
        TemplateCache oldCache = cache;
        cache = new TemplateCache(loader, storage);
        cache.setDelay(oldCache.getDelay());
        cache.setConfiguration(this);
        cache.setLocalizedLookup(localizedLookup);
    }

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