/**
* See {@link #testCacheEntryFactoryReturningElementMake} this test ensures the Refresh
* functionality works
*/
@Test
public void testCacheEntryFactoryReturningElementRefresh() throws Exception {
final long specialVersionNumber = 54321L;
final CacheEntryFactory elementReturningFactory =
new CacheEntryFactory() {
public Object createEntry(final Object key) throws Exception {
Element e = new Element(key, "V_" + key);
e.setVersion(specialVersionNumber);
return e;
}
};
selfPopulatingCache = new SelfPopulatingCache(cache, elementReturningFactory);
Element e = null;
e = selfPopulatingCache.get("key1");
assertEquals("V_key1", e.getValue());
assertEquals(specialVersionNumber, e.getVersion());
e = selfPopulatingCache.get("key2");
assertEquals("V_key2", e.getValue());
assertEquals(specialVersionNumber, e.getVersion());
assertEquals(2, selfPopulatingCache.getSize());
selfPopulatingCache.refresh();
e = selfPopulatingCache.get("key1");
assertEquals("V_key1", e.getValue());
assertEquals(specialVersionNumber, e.getVersion());
e = selfPopulatingCache.get("key2");
assertEquals("V_key2", e.getValue());
assertEquals(specialVersionNumber, e.getVersion());
assertEquals(2, selfPopulatingCache.getSize());
}
@Test
public void testSupportsCopyOnRead() {
Element element = new Element(KEY, "Some String", 1);
xaStore.put(element);
Element copy = xaStore.get(KEY);
assertNotNull(copy);
assertNotSame(copy, xaStore.get(KEY));
assertEquals("Some String", copy.getValue());
assertEquals(copy.getValue(), xaStore.get(KEY).getValue());
assertNotSame(copy.getValue(), xaStore.get(KEY).getValue());
}
@Override
public synchronized void updateEntry(final String key, final HttpCacheUpdateCallback callback)
throws IOException, HttpCacheUpdateException {
int numRetries = 0;
do {
final Element oldElement = cache.get(key);
HttpCacheEntry existingEntry = null;
if (oldElement != null) {
final byte[] data = (byte[]) oldElement.getValue();
existingEntry = serializer.readFrom(new ByteArrayInputStream(data));
}
final HttpCacheEntry updatedEntry = callback.update(existingEntry);
if (existingEntry == null) {
putEntry(key, updatedEntry);
return;
} else {
// Attempt to do a CAS replace, if we fail then retry
// While this operation should work fine within this instance, multiple instances
// could trample each others' data
final ByteArrayOutputStream bos = new ByteArrayOutputStream();
serializer.writeTo(updatedEntry, bos);
final Element newElement = new Element(key, bos.toByteArray());
if (cache.replace(oldElement, newElement)) {
return;
} else {
numRetries++;
}
}
} while (numRetries <= maxUpdateRetries);
throw new HttpCacheUpdateException("Failed to update");
}
/** Tests the expiry notifier. Check a reported scenario */
@Test
public void testExpiryNotifications() throws InterruptedException {
Serializable key = "1";
Element element = new Element(key, new Date());
TestCacheEventListener cacheEventListener = new TestCacheEventListener();
cache.getCacheEventNotificationService().registerListener(cacheEventListener);
// Put
cache.put(element);
// expire
Thread.sleep(15000);
for (int i = 0; i < cache.getCacheConfiguration().getMaxEntriesLocalHeap(); i++) {
cache.put(new Element(i, i));
cache.get(i); // makes sure the entry is flushed
}
assertThat(cacheEventListener.counter.get(), equalTo(1));
// the TestCacheEventListener does a put of a new Element with the same key on expiry
assertNotNull(cache.get(key));
Element newElement = cache.get(key);
assertNotNull(newElement);
assertEquals("set on notify", newElement.getValue());
// Check counting listener
CountingCacheEventListener listener = getCountingCacheEventListener(cache);
List<CacheEvent> notifications = listener.getCacheElementsExpired();
assertThat(notifications, hasSize(1));
assertEquals(element, notifications.get(0).getElement());
// check for NPE
cache.remove(null);
}
/** 主方法 如果某方法可被缓存就缓存其结果 方法结果必须是可序列化的(serializable) */
public Object invoke(MethodInvocation invocation) throws Throwable {
String targetName = invocation.getThis().getClass().getName();
String methodName = invocation.getMethod().getName();
Object[] arguments = invocation.getArguments();
Object result;
logger.info("在缓存中查找方法返回的对象!");
String cacheKey = getCacheKey(targetName, methodName, arguments);
Element element = cache.get(cacheKey);
if (element == null) {
logger.info("正在拦截方法!");
result = invocation.proceed();
logger.info("正在缓存对象!");
element = new Element(cacheKey, (Serializable) result);
cache.put(element);
}
return element.getValue();
}
/**
* Retrieve the missed cache item from the specified cache.
*
* @param key the unique key for the cache item
* @param cacheName the name of the cache - this is the cache region name from ehcache config
* @param <T> the type of the cache item
* @return the cache item instance
*/
protected <T> T getObjectFromCache(String key, String cacheName) {
Element cacheElement = getCache(cacheName).get(key);
if (cacheElement != null) {
return (T) cacheElement.getValue();
}
return null;
}
@Override
public <T extends GeneralMessage> boolean isNewMessage(String userId, T message, Class<T> T) {
Cache cache = cm.getCache("Messages");
String key = message.getUniqueFieldValue() + userId;
Element element = cache.get(key);
if (element != null) {
return (Boolean) element.getValue();
}
Query<UnreaddenMessage> isUnread =
ds.createQuery(UnreaddenMessage.class)
.field("userId")
.equal(userId)
.field("message")
.equal(new Key<T>(T, message.getId()));
Query<ReaddenMessage> isRead =
ds.createQuery(ReaddenMessage.class)
.field("userId")
.equal(userId)
.field("messageUniqueId")
.equal(message.getUniqueFieldValue().toString());
Boolean newMessage = isUnread.countAll() <= 0 && isRead.countAll() <= 0;
element = new Element(key, new Boolean(false));
cache.put(element);
return newMessage;
}
public V get(final K key) {
Element element = this.cache.get(key);
if (element != null) {
return (V) element.getValue();
}
return null;
}
@Override
public void doResponse() {
// TODO Auto-generated method stub
try {
String platform = request.getParameter("p");
platform = platform == null ? "android" : platform;
String cacheIndex = REQUEST_TYPE + ",p:" + platform;
UtilFunctions.serverLog("cacheIndex:" + cacheIndex);
String responseData = null;
Element element = null;
if ((element = cache.get(cacheIndex)) != null /*cache.isKeyInCache(cacheIndex)*/) {
responseData = (String) element.getValue();
// System.out.println(REQUEST_TYPE+":缓存数据");
UtilFunctions.serverLog(REQUEST_TYPE + CACHE_DATA);
} else {
VersionService versionService = (VersionService) context.getBean("versionService");
Version version =
versionService.getLatestVersion(
platform == null ? VersionService.PLATFORM_ANDROID : platform);
if (version == null) {
UtilFunctions.serverLog(REQUEST_TYPE + "version is null");
return;
}
responseData = version.getJSONObject().toString();
cache.put(new Element(cacheIndex, responseData));
// System.out.println(REQUEST_TYPE+":非缓存数据");
UtilFunctions.serverLog(REQUEST_TYPE + NOT_CACHE_DATA);
}
PrintWriter pw = response.getWriter();
pw.write(responseData);
pw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public <T extends ISocioObject> void saveObject(T object) throws DuplicateMySocioObjectException {
if (object instanceof IUniqueObject) {
IUniqueObject uniqueObject = (IUniqueObject) object;
Cache cache = cm.getCache("Objects");
String key = uniqueObject.getUniqueFieldName() + uniqueObject.getUniqueFieldValue();
Element element = cache.get(key);
if (element != null) {
((SocioObject) object).setId((ObjectId) element.getValue());
return;
}
@SuppressWarnings("unchecked")
Query<T> q =
(Query<T>)
ds.createQuery(object.getClass())
.field(uniqueObject.getUniqueFieldName())
.equal(uniqueObject.getUniqueFieldValue());
T objectT = (T) q.get();
if (objectT != null) {
((SocioObject) object).setId(objectT.getId());
element = new Element(key, objectT.getId());
cache.put(element);
logger.info(
"Duplicate object of type: " + object.getClass() + " for query: " + q.toString());
throw new DuplicateMySocioObjectException(
"Duplicate object of type: " + object.getClass() + " for query: " + q.toString());
}
}
ds.save(object);
}
@Around("findTurmaEfetiva()")
public Object findTurmaEfetivaMethodInterceptor(ProceedingJoinPoint joinPoint) throws Throwable {
Object result = null;
CacheManager cacheManager =
CacheManager.create(new ClassPathResource("echache.xml").getInputStream());
Cache cache = cacheManager.getCache("turmas-efetivas-cache");
Object[] args = joinPoint.getArgs();
Long turmaId = (Long) args[0];
Element element = cache.get(turmaId);
if (element == null) {
result = joinPoint.proceed();
cache.put(new Element(turmaId, result));
} else {
Logger.getLogger(this.getClass().getName())
.log(
Level.INFO,
"Dados presentes no cache de turmas, não foi necessário acesso ao banco de dados");
result = element.getValue();
}
return result;
}
@Around("findAllComPendendias()")
public Object findAllTurmasComPendenciasMethodInterceptor(ProceedingJoinPoint joinPoint)
throws Throwable {
Object result = null;
CacheManager cacheManager =
CacheManager.create(new ClassPathResource("echache.xml").getInputStream());
Cache cache = cacheManager.getCache("turmas-pendencias-cache");
Object[] args = joinPoint.getArgs();
if (args[0] == null || args[1] == null) {
result = joinPoint.proceed();
return result;
}
SimpleDateFormat df = new SimpleDateFormat("yyyy");
String exercicio = df.format((Date) args[0]);
String organizacao = ((Long) args[1]).toString();
String key = exercicio + "-" + organizacao;
Element element = cache.get(key);
if (element == null) {
result = joinPoint.proceed();
cache.put(new Element(key, result));
} else {
Logger.getLogger(this.getClass().getName())
.log(Level.INFO, "Dados presentes no cache, não foi necessário acesso ao banco de dados");
result = element.getValue();
}
return result;
}
/** {@inheritDoc} */
@Override
public Integer getNewPmCountFor(String username) {
Element cacheElementForUser = userDataCache.get(username);
if (cacheElementForUser == null) {
return null;
}
return (Integer) cacheElementForUser.getValue();
}
/** Tests fetching an entry. */
@Test
public void testFetch() throws Exception {
LOG.error(".");
// Lookup
final Element element = selfPopulatingCache.get("key");
assertEquals("value", element.getValue());
}
@Override
@SuppressWarnings("unchecked")
public Map<String, Product> getCachedProductList() {
Element cachedCodeList = this.codeCache.get("productList");
if (cachedCodeList == null) {
cacheCodeList();
}
return (Map<String, Product>) cachedCodeList.getValue();
}
/** {@inheritDoc} */
@Override
public void decrementNewMessageCountFor(String username) {
Element cacheElementForUser = userDataCache.get(username);
if (cacheElementForUser != null) {
int count = (Integer) cacheElementForUser.getValue();
count--;
userDataCache.put(new Element(username, count));
}
}
public void notifyElementExpired(Ehcache cache, Element element) {
JRadiusSession session = (JRadiusSession) element.getValue();
RadiusLog.debug("Expired session: " + session.getSessionKey());
if (JRadiusServer.getEventDispatcher() != null) {
SessionExpiredEvent evt = new SessionExpiredEvent(session);
evt.setApplicationContext(applicationContext);
JRadiusServer.getEventDispatcher().post(evt);
}
}
protected Dashboard getDashboardFromCache(DashboardCacheKey key) {
Dashboard dashboard;
RepositoryAccess repository = RepositoryAccess.getRepository();
try {
Cache cache = getCache();
Element cacheElement = cache.get(key);
if (cacheElement == null) {
return null;
} else {
dashboard = (Dashboard) cacheElement.getValue();
}
logger.info("Got dashboard from cache");
ISolutionFile dash =
repository.getSolutionFile(key.getCdfde(), FileAccess.READ); // was NO_PERM=0;
if (dash == null) {
logger.error(key.getCdfde() + " not found.");
return null;
}
ISolutionFile templ;
if (key.getTemplate() == null) {
templ = null;
} else {
templ = repository.getSolutionFile(key.getTemplate(), FileAccess.READ);
}
/* Cache is invalidated if the dashboard or template have changed since
* the cache was loaded, or at midnight every day, because of dynamic
* generation of date parameters.
*/
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 00);
cal.set(Calendar.MINUTE, 00);
cal.set(Calendar.SECOND, 1);
boolean
cacheInvalid =
dash.getLastModified() > dashboard.getLoaded().getTime()
|| (templ != null && templ.getLastModified() > dashboard.getLoaded().getTime()),
cacheExpired = cal.getTime().after(dashboard.getLoaded());
if (cacheExpired) {
logger.info("Dashboard expired, re-rendering");
return null;
} else if (cacheInvalid) {
logger.info("Dashboard cache invalidated, re-rendering");
return null;
} else {
return dashboard;
}
} catch (CacheException ce) {
logger.info("Dashboard cache invalidated, re-rendering");
return null;
}
}
@Override
public synchronized HttpCacheEntry getEntry(final String key) throws IOException {
final Element e = cache.get(key);
if (e == null) {
return null;
}
final byte[] data = (byte[]) e.getValue();
return serializer.readFrom(new ByteArrayInputStream(data));
}
public synchronized long incr(String key, int by) {
Element e = cache.get(key);
if (e == null) {
return -1;
}
long newValue = ((Number) e.getValue()).longValue() + by;
Element newE = new Element(key, newValue);
newE.setTimeToLive(e.getTimeToLive());
cache.put(newE);
return newValue;
}
@Around("simplePointcut()")
public Object aroundLogCalls(ProceedingJoinPoint joinPoint) throws Throwable {
String targetName = joinPoint.getTarget().getClass().toString();
String methodName = joinPoint.getSignature().getName();
Object[] arguments = joinPoint.getArgs();
// 试图得到标注的Ehcache类
@SuppressWarnings("unused")
Method[] methods = joinPoint.getTarget().getClass().getMethods();
Ehcache flag = null;
for (Method m : methods) {
if (m.getName().equals(methodName)) {
Class[] tmpCs = m.getParameterTypes();
if (tmpCs.length == arguments.length) {
flag = m.getAnnotation(Ehcache.class);
break;
}
}
}
if (flag == null) {
return null;
}
// Ehcache flag
// =joinPoint.getTarget().getClass().getMethod(methodName).getAnnotation(Ehcache.class);
Object result;
String cacheKey = getCacheKey(targetName, methodName, arguments);
Element element = null;
if (flag.eternal()) {
// 永久缓存
element = dictCache.get(cacheKey);
} else {
// 临时缓存
element = eternalCache.get(cacheKey);
}
if (element == null) {
if ((arguments != null) && (arguments.length != 0)) {
result = joinPoint.proceed(arguments);
} else {
result = joinPoint.proceed();
}
element = new Element(cacheKey, (Serializable) result);
if (flag.eternal()) {
// 永久缓存
dictCache.put(element);
} else {
// 临时缓存
eternalCache.put(element);
}
}
return element.getValue();
}
@Override
public ManageableSecurity loadSecurityDetail(ManageableSecurity base) {
ManageableSecurity cached;
Element e = _detailsCache.get(base.getUniqueId());
if (e != null) {
cached = (ManageableSecurity) e.getValue();
} else {
cached = _underlying.loadSecurityDetail(base);
e = new Element(base.getUniqueId(), cached);
_detailsCache.put(e);
}
return JodaBeanUtils.clone(cached);
}
@Override
public SellingContext getByGuid(final String sellingContextGuid) {
Element element = getCache().get(sellingContextGuid);
if (element != null && !element.isExpired()) {
LOG.debug("get objecct from cache... guid: " + sellingContextGuid);
return (SellingContext) element.getValue();
}
LOG.debug("get objecct from database... guid: " + sellingContextGuid);
SellingContext sellingContext = sellingContextService.getByGuid(sellingContextGuid);
cache.put(new Element(sellingContextGuid, sellingContext));
return sellingContext;
}
public Serializable get(Serializable key) {
if (getEhcache().getStatus() == Status.STATUS_ALIVE) {
try {
Element element = getEhcache().get(key);
if (element == null) {
return null;
} else {
return element.getValue();
}
} catch (Error ignore) {
return null;
}
}
return null;
}
/** {@inheritDoc} */
@SuppressWarnings("unchecked")
@Override
public void removeCache(String cacheName, LookupCode lookupCode) {
Cache cache = cacheManager.getCache("codeCache");
Element element = cache.get("codeList");
Map<String, List<LookupCode>> map = (Map<String, List<LookupCode>>) element.getValue();
List<LookupCode> lookupCodes = codeService.getCodeList(lookupCode);
if (lookupCodes.size() == 0) {
map.remove(lookupCode.getCodeGroup());
} else {
map.put(lookupCode.getCodeGroup(), lookupCodes);
}
this.codeCache.put(new Element("codeList", map));
}
/** {@inheritDoc} */
@SuppressWarnings("unchecked")
@Override
public List<LookupCode> appendCache(String cacheName, LookupCode lookupCode) {
String lang = lookupCode.getLanguage();
lookupCode.setLanguage("ALL");
Cache cache = cacheManager.getCache("codeCache");
Element element = cache.get(cacheName);
Map<String, List<LookupCode>> map = (Map<String, List<LookupCode>>) element.getValue();
List<LookupCode> lookupCodes = codeService.getCodeList(lookupCode);
map.put(lookupCode.getCodeGroup(), lookupCodes);
this.codeCache.put(new Element("codeList", map));
lookupCode.setLanguage(lang);
return lookupCodes;
}
private CnATreeElement getFromCache(CnATreeElement element) {
final Element cachedElement = getCache().get(element.getUuid());
if (cachedElement != null) {
element = (CnATreeElement) cachedElement.getValue();
if (getLog().isDebugEnabled()) {
getLog()
.debug("Element from cache: " + element.getTitle() + ", UUID: " + element.getUuid());
}
} else {
element = getDao().retrieve(element.getDbId(), RetrieveInfo.getPropertyInstance());
if (element != null) {
getCache().put(new Element(element.getUuid(), element));
}
}
return element;
}
private void oturumSayisiArtir() {
GregorianCalendar gcal = new GregorianCalendar();
int minute = gcal.get(GregorianCalendar.MINUTE);
int hour = gcal.get(GregorianCalendar.HOUR_OF_DAY);
String statisticKey = "" + ((hour * 6) + (minute / 10));
Element element = getStatisticCache().get(statisticUUID + statisticKey);
OturumStatistic oturumSayisi = null;
if (element == null) {
oturumSayisi = new OturumStatistic(statisticKey);
} else {
oturumSayisi = (OturumStatistic) element.getValue();
}
oturumSayisi.oturumSayisiArtir();
Element element2 = new Element(statisticUUID + statisticKey, oturumSayisi);
getStatisticCache().put(element2);
}
public CasAuthentication get(String serviceTicket) {
Element element = null;
try {
element = cache.get(serviceTicket);
} catch (CacheException cacheException) {
throw new CacheException("Cache failure: " + cacheException.getMessage());
}
if (logger.isDebugEnabled()) {
logger.debug("Cache hit: " + (element != null) + "; service ticket: " + serviceTicket);
}
if (element == null) {
return null;
} else {
return (CasAuthentication) element.getValue();
}
}
/** {@inheritDoc} */
@SuppressWarnings("unchecked")
@Override
public Product appendProductCache(String cacheName, String prodCd) {
Cache cache = cacheManager.getCache("codeCache");
Element element = cache.get(cacheName);
Map<String, Product> map = (Map<String, Product>) element.getValue();
Product pdhProduct = new Product();
pdhProduct.setProdCd(prodCd);
List<Product> products = pdhService.getAllProductList(pdhProduct);
if (products != null && products.size() > 0) {
map.put(prodCd, products.get(0));
return products.get(0);
} else {
// 할인상품이 있는 지 한번더 조회 한다.
return pdhService.getDiscountProduct(pdhProduct);
}
}
