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

Package org.apache.turbine.services.cache

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

org.apache.turbine.services.cache.RefreshableCachedObject
The idea of the RefreshableCachedObject is that, rather than removing items from the cache when they become stale, we'll tell them to refresh themselves instead. That way they'll always be in the cache, and the code to refresh them will be run by the background thread rather than by a user request thread. You can also set a TTL (Time To Live) for the object. This way, if the object hasn't been touched for the TTL period, then it will be removed from the cache. This extends CachedObject and provides a method for refreshing the cached object, and resetting its expire time. @author Nissim Karpenstein @author Henning P. Schmiedehausen @version $Id: RefreshableCachedObject.java 278822 2005-09-05 19:53:05Z henning $

     */
    public void testRefreshableTimeToLive() throws Exception
    {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        RefreshableCachedObject cacheObject = null;


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


        // Create and add Object that expires in TEST_EXPIRETIME millis.
        cacheObject = new RefreshableCachedObject(new RefreshableObject(), TEST_EXPIRETIME);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        cacheObject.setTTL(TEST_TIMETOLIVE);


        // Verify TimeToLive was set
        assertEquals( "Returned TimeToLive", TEST_TIMETOLIVE, cacheObject.getTTL());


        // Add object to Cache
        long addTime = System.currentTimeMillis();
        globalCache.addObject(cacheKey, cacheObject);

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     */    
    public void testRefreshableObject() throws Exception
    {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        RefreshableCachedObject cacheObject = null;
        
        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );
        
        // Create and add Object that expires in TEST_EXPIRETIME millis.
        cacheObject = new RefreshableCachedObject(new RefreshableObject(), TEST_EXPIRETIME);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        long addTime = System.currentTimeMillis();
        globalCache.addObject(cacheKey, cacheObject);
        
        // Try to get un-expired object

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     */    
    public void testRefreshableTimeToLive() throws Exception
    {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        RefreshableCachedObject cacheObject = null;
        
        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );
        
        // Create and add Object that expires in TEST_EXPIRETIME millis.
        cacheObject = new RefreshableCachedObject(new RefreshableObject(), TEST_EXPIRETIME);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        cacheObject.setTTL(TEST_TIMETOLIVE);


        // Verify TimeToLive was set
        assertEquals( "Returned TimeToLive", TEST_TIMETOLIVE, cacheObject.getTTL());


        // Add object to Cache
        long addTime = System.currentTimeMillis();
        globalCache.addObject(cacheKey, cacheObject);

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     */    
    public void testRefreshableObject() throws Exception
    {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        RefreshableCachedObject cacheObject = null;
        
        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );
        
        // Create and add Object that expires in TEST_EXPIRETIME millis.
        cacheObject = new RefreshableCachedObject(new RefreshableObject(), TEST_EXPIRETIME);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        long addTime = System.currentTimeMillis();
        globalCache.addObject(cacheKey, cacheObject);
        
        // Try to get un-expired object

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     */    
    public void testRefreshableTimeToLive() throws Exception
    {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        RefreshableCachedObject cacheObject = null;
        
        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );
        
        // Create and add Object that expires in TEST_EXPIRETIME millis.
        cacheObject = new RefreshableCachedObject(new RefreshableObject(), TEST_EXPIRETIME);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        cacheObject.setTTL(TEST_TIMETOLIVE);


        // Verify TimeToLive was set
        assertEquals( "Returned TimeToLive", TEST_TIMETOLIVE, cacheObject.getTTL());


        // Add object to Cache
        long addTime = System.currentTimeMillis();
        globalCache.addObject(cacheKey, cacheObject);

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     * @throws Exception
     */    
    public void testRefreshableObject() throws Exception {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        RefreshableCachedObject cacheObject = null;
        long addTime = 0;
        
        boolean turbineCachePatchApplied = false; // FIXME:  Remove when patch applied
        
        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );
        
        // Create and add Object that expires in TEST_EXPIRETIME millis.
        cacheObject = new RefreshableCachedObject(new RefreshableObject(), TEST_EXPIRETIME);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        globalCache.addObject(cacheKey, cacheObject);
        addTime = System.currentTimeMillis();
        
        // Try to get un-expired object

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     * @throws Exception
     */    
    public void testRefreshableTimeToLive() throws Exception {
        String testString = new String( "This is a test");
        Object retrievedObject = null;
        RefreshableCachedObject cacheObject = null;
        long addTime = 0;
        
        GlobalCacheService globalCache = (GlobalCacheService)TurbineServices
        .getInstance()
        .getService( GlobalCacheService.SERVICE_NAME );
        
        // Create and add Object that expires in TEST_EXPIRETIME millis.
        cacheObject = new RefreshableCachedObject(new RefreshableObject(), TEST_EXPIRETIME);
        assertNotNull( "Failed to create a cachable object", cacheObject);
        cacheObject.setTTL(TEST_TIMETOLIVE);


        // Verify TimeToLive was set
        assertEquals( "Returned TimeToLive", TEST_TIMETOLIVE, cacheObject.getTTL());


        // Add object to Cache
        globalCache.addObject(cacheKey, cacheObject);
        addTime = System.currentTimeMillis();

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                if (System.currentTimeMillis() < expirationMillis.longValue()) {
                    cachedObject.setExpires(expirationMillis.longValue() - cachedObject.getCreated());
                }
            }
            if (item instanceof Refreshable) {
                RefreshableCachedObject rco = new RefreshableCachedObject( (Refreshable) item);
                if (item instanceof AbstractPortlet) {
                    AbstractPortlet portlet = (AbstractPortlet)item;
                    String tempString =  portlet.getPortletConfig().getInitParameter(JetspeedResources.TIME_TO_LIVE);
                    if (tempString != null) {
                        rco.setTTL(Integer.parseInt(tempString));
                        if (logger.isWarnEnabled())
                        {
                            logger.warn("PortletCache: portlet " 
                                     + item.getHandle() 
                                     + " overrides default time to live with " 
                                     + tempString);
                        }
                    } else {
                        rco.setTTL(DefaultTimeToLiveMillis);
                    }
                } else {
                    rco.setTTL(DefaultTimeToLiveMillis);
                }
                cachedObject = rco;
                
            } else {
                cachedObject = new CachedObject(item);

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