Package org.apache.turbine.services.cache

Examples of org.apache.turbine.services.cache.GlobalCacheService

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     * the cache.
     */
    public static CachedObject getObject(String id)
        throws ObjectExpiredException {

        GlobalCacheService gcs = (GlobalCacheService)TurbineServices
            .getInstance()
            .getService( GlobalCacheService.SERVICE_NAME );
           
        return gcs.getObject( id );
    }
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     * @return int Size, in byte, of cache
     * @exception IOException Exception passed from
     */
    public static int getCacheSize()
    throws IOException {
        GlobalCacheService gcs = (GlobalCacheService)TurbineServices
            .getInstance()
            .getService( GlobalCacheService.SERVICE_NAME );
       
        return gcs.getCacheSize();
    }
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     *
     * @return int, Size, in byte, of cache
     */
    public static int getNumberOfObjects() {
        int tempInt = 0;
        GlobalCacheService gcs = (GlobalCacheService)TurbineServices
            .getInstance()
            .getService( GlobalCacheService.SERVICE_NAME );
       
        tempInt = gcs.getNumberOfObjects();
        return tempInt;
    }
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    /**
     * Flush the cache of <B>ALL</B> objects
     */
    public void flushCache() {
        GlobalCacheService gcs = (GlobalCacheService)TurbineServices
            .getInstance()
            .getService( GlobalCacheService.SERVICE_NAME );
       
        gcs.flushCache();
    }
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     *
     * @return int, Size, in byte, of cache
     */
    public static int getNumberOfObjects() {
        int tempInt = 0;
        GlobalCacheService gcs = (GlobalCacheService)TurbineServices
            .getInstance()
            .getService( GlobalCacheService.SERVICE_NAME );
       
        tempInt = gcs.getNumberOfObjects();
        return tempInt;
    }
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    /**
     * Flush the cache of <B>ALL</B> objects
     */
    public void flushCache() {
        GlobalCacheService gcs = (GlobalCacheService)TurbineServices
            .getInstance()
            .getService( GlobalCacheService.SERVICE_NAME );
       
        gcs.flushCache();
    }
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    {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        CachedObject cacheObject1 = null;

        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );

        // Create object
        cacheObject1 = new CachedObject(testString);
        assertNotNull( "Failed to create a cachable object 1", cacheObject1);

        // Add object to cache
        globalCache.addObject(cacheKey, cacheObject1);

        // Get object from cache
        retrievedObject = globalCache.getObject(cacheKey);
        assertNotNull( "Did not retrieved a cached object 1", retrievedObject);
        assertTrue( "Did not retrieved a correct, expected cached object 1", retrievedObject == cacheObject1);

        // Remove object from cache
        globalCache.removeObject(cacheKey);

        // Verify object removed from cache
        retrievedObject = null;
        cacheObject1 = null;
        try
        {
            retrievedObject = globalCache.getObject(cacheKey);
            assertNull( "Retrieved the deleted cached object 1 and did not get expected ObjectExpiredException", retrievedObject);
            assertNotNull( "Did not get expected ObjectExpiredException retrieving a deleted object", retrievedObject);
        }
        catch (ObjectExpiredException e)
        {
            assertNull( "Retrieved the deleted cached object 1, but caught expected ObjectExpiredException exception", retrievedObject);
        }
        catch (Exception e)
        {
            throw e;
        }

        // Remove object from cache that does NOT exist in the cache
        globalCache.removeObject(cacheKey);
    }
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        String testString = new String( "This is a test");
        Object retrievedObject = null;
        CachedObject cacheObject1 = null;
        CachedObject cacheObject2 = null;

        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );

        // Create and add Object #1
        cacheObject1 = new CachedObject(testString);
        assertNotNull( "Failed to create a cachable object 1", cacheObject1);
        globalCache.addObject(cacheKey, cacheObject1);
        retrievedObject = globalCache.getObject(cacheKey);
        assertNotNull( "Did not retrieved a cached object 1", retrievedObject);
        assertEquals( "Did not retrieved correct cached object", cacheObject1, retrievedObject);

        // Create and add Object #2
        cacheObject2 = new CachedObject(testString);
        assertNotNull( "Failed to create a cachable object 2", cacheObject2);
        globalCache.addObject(cacheKey_2, cacheObject2);
        retrievedObject = globalCache.getObject(cacheKey_2);
        assertNotNull( "Did not retrieved a cached object 2", retrievedObject);
        assertEquals( "Did not retrieved correct cached object 2", cacheObject2, retrievedObject);

        // Get object #1
        retrievedObject = globalCache.getObject(cacheKey);
        assertNotNull( "Did not retrieved a cached object 1. Attempt #2", retrievedObject);
        assertEquals( "Did not retrieved correct cached object 1. Attempt #2", cacheObject1, retrievedObject);

        // Get object #1
        retrievedObject = globalCache.getObject(cacheKey);
        assertNotNull( "Did not retrieved a cached object 1. Attempt #3", retrievedObject);
        assertEquals( "Did not retrieved correct cached object 1. Attempt #3", cacheObject1, retrievedObject);

        // Get object #2
        retrievedObject = globalCache.getObject(cacheKey_2);
        assertNotNull( "Did not retrieved a cached object 2. Attempt #2", retrievedObject);
        assertEquals( "Did not retrieved correct cached object 2 Attempt #2", cacheObject2, retrievedObject);

        // Remove objects
        globalCache.removeObject(cacheKey);
        globalCache.removeObject(cacheKey_2);
    }
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    {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        CachedObject cacheObject = null;

        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );

        // Create and add Object that expires in 1000 millis (1 second)
        cacheObject = new CachedObject(testString, 1000);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        long addTime = System.currentTimeMillis();
        globalCache.addObject(cacheKey, cacheObject);

        // Try to get un-expired object
        try
        {
            retrievedObject = null;
            retrievedObject = globalCache.getObject(cacheKey);
            assertNotNull( "Did not retrieved a cached object", retrievedObject);
            assertEquals( "Did not retrieved correct cached object", cacheObject, retrievedObject);
        }
        catch (ObjectExpiredException e)
        {
            assertTrue( "Object expired early ( " + (System.currentTimeMillis() - addTime) + " millis)", false);
        }
        catch (Exception e)
        {
            throw e;
        }

        // Sleep 1500 Millis (1.5 seconds)
        Thread.sleep(1500);

        // Try to get expired object
        try
        {
            retrievedObject = null;
            retrievedObject = globalCache.getObject(cacheKey);
            assertNull( "Retrieved the expired cached object  and did not get expected ObjectExpiredException", retrievedObject);
            assertNotNull( "Did not get expected ObjectExpiredException retrieving an expired object", retrievedObject);
        }
        catch (ObjectExpiredException e)
        {
            assertNull( "Retrieved the expired cached object, but caught expected ObjectExpiredException exception", retrievedObject);
        }
        catch (Exception e)
        {
            throw e;
        }

        // Remove objects
        globalCache.removeObject(cacheKey);
    }
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    {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        CachedObject cacheObject = null;

        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );

        // Create and add Object that expires in 1 turbine Refresh + 1 millis
        cacheObject = new CachedObject(testString, (TURBINE_CACHE_REFRESH*5) + 1);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        long addTime = System.currentTimeMillis();
        globalCache.addObject(cacheKey, cacheObject);

        // 1 Refresh
        Thread.sleep(TURBINE_CACHE_REFRESH + 1);
        assertTrue("No object in cache before flush", (0 < globalCache.getNumberOfObjects()));

        // Flush Cache
        globalCache.flushCache();

        // Wait 15 seconds, 3 Refresh
        Thread.sleep((TURBINE_CACHE_REFRESH * 2) + 1);
        assertEquals("After refresh", 0, globalCache.getNumberOfObjects());

        // Remove objects
        globalCache.removeObject(cacheKey);
    }
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