/** 拦截 Service/DAO 的方法，并查找该结果是否存在，如果存在就返回 cache 中的值， 否则，返回数据库查询结果，并将查询结果放入 cache */
@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
String targetName = invocation.getThis().getClass().getName();
String methodName = invocation.getMethod().getName();
Object[] arguments = invocation.getArguments();
Object result;
String cacheKey = getCacheKey(targetName, methodName, arguments);
logger.info("从[" + cache.getName() + "]查询key:[" + cacheKey + "]的缓存]");
// System.out.println("从["+cache.getName()+"]查询key:["+cacheKey+"]的缓存]");
Element element = cache.get(cacheKey);
if (element == null) {
result = invocation.proceed();
logger.info("key:[" + cacheKey + "]无缓存，创建缓存为[" + result + "]");
// System.out.println("key:["+cacheKey+"]无缓存，创建缓存为["+result+"]");
element = new Element(cacheKey, (Serializable) result);
cache.put(element);
}
return element.getObjectValue();
}
private void testGetKeysMethods(Cache[] caches) {
for (Cache c : caches) {
String name = c.getName();
if (!name.equals("dcv2") && !name.equals("classic")) {
throw new AssertionError(name);
}
verifyKeys(name, c.getKeys(), "classic".equals(name) ? 2 : 1);
verifyKeys(name, c.getKeysWithExpiryCheck(), 1);
}
}
public Object invoke(MethodInvocation invocation) throws Throwable {
String targetName = invocation.getThis().getClass().getName();
String methodName = invocation.getMethod().getName();
Object[] arguments = invocation.getArguments();
Object result;
String cacheKey = getCacheKey(targetName, methodName, arguments);
Element element = null;
synchronized (this) {
element = cache.get(cacheKey);
if (element == null) {
log.info(cacheKey + "加入到缓存： " + cache.getName());
// 调用实际的方法
result = invocation.proceed();
element = new Element(cacheKey, (Serializable) result);
cache.put(element);
} else {
log.info(cacheKey + "使用缓存： " + cache.getName());
}
}
return element.getValue();
}
public void reconfigureCaches(URL configurationURL) {
Configuration configuration =
EhcacheConfigurationUtil.getConfiguration(configurationURL, _clusterAware);
Map<String, CacheConfiguration> cacheConfigurations = configuration.getCacheConfigurations();
for (CacheConfiguration cacheConfiguration : cacheConfigurations.values()) {
Cache cache = new Cache(cacheConfiguration);
PortalCache portalCache = addCache(cache.getName(), cache);
if (portalCache == null) {
_log.error("Failed to override cache " + cacheConfiguration.getName());
}
}
}
/** 拦截Service/DAO的方法，并查找该结果是否存在，如果存在就返回cache中的值， 否则，返回数据库查询结果，并将查询结果放入cache */
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.debug("Find object from cache is " + cache.getName());
String cacheKey = getCacheKey(targetName, methodName, arguments);
Element element = cache.get(cacheKey);
if (element == null) {
logger.debug("Hold up method , Get method result and create cache........!");
result = invocation.proceed();
element = new Element(cacheKey, (Serializable) result);
cache.put(element);
}
return element.getValue();
}
public void add(Query query) {
String name = query.getQid().getId();
if (!this.manager.cacheExists(name) && query.isCacheable()) {
CacheConfiguration config = defaultConfig.clone();
config.setName(name);
config.setEternal(query.isEternal());
config.setTimeToLiveSeconds(query.getCacheTime());
Cache c = new Cache(config);
this.manager.addCache(c);
if (log.isDebugEnabled()) {
log.debug(
String.format(
"Cache %s created: eternal = %s, cacheTime = %d",
c.getName(), query.isEternal(), query.getCacheTime()));
}
}
}
public ClientContextService() {
ClassLoader classLoader = getClass().getClassLoader();
cacheManager = CacheManager.newInstance(classLoader.getResource("ehcache.xml").getFile());
cache = cacheManager.getCache("clientsCache");
System.out.println("ready: " + cache.getName());
}
public String getName() {
return cache.getName();
}
