/**
* 如果该cache已经存在，则不再创建并返回已有cache
*
* @param groupId 如果cache和账号无关，置为null，创建全局cache
* @param expireTime 小于0（比如-1）则忽略超时
*/
public <K, V> Cache<K, V> createPersistedLruExpireCache(
String groupId, CacheKey cacheID, int capacity, long expireTime) {
if (groupId == null) {
groupId = GLOBAL_CACHE_GROUP_ID;
}
Map<CacheKey, Cache> caches;
synchronized (cacheMap) {
caches = cacheMap.get(groupId);
if (caches == null) {
caches = new ConcurrentHashMap<>();
cacheMap.put(groupId, caches);
LogUtil.w(sTAG, groupId + " caches not exist, warning.");
}
}
Cache<K, V> cache = caches.get(cacheID);
if (cache == null) {
try {
cache = new PersistedLruExpireCache(cacheID.getKey(), groupId, capacity, 1, expireTime);
caches.put(cacheID, cache);
} catch (IOException e) {
LogUtil.e(sTAG, e.getMessage(), e);
}
} else {
cache.setCapacity(capacity);
}
return cache;
}
/**
* 给指定账号创建SimpleCache，注意如果该cache已经存在，则不再创建并返回已有cache
*
* @param groupId 输入null，创建全局性账号无关cache
* @return cache
*/
public <K, V> Cache<K, V> createSimpleCache(String groupId, CacheKey cacheID, int capacity) {
if (groupId == null) {
groupId = GLOBAL_CACHE_GROUP_ID;
}
Map<CacheKey, Cache> caches;
synchronized (cacheMap) {
caches = cacheMap.get(groupId);
if (caches == null) {
caches = new ConcurrentHashMap<>();
cacheMap.put(groupId, caches);
LogUtil.w(sTAG, groupId + " caches not exist, warning.");
}
}
return addSimpleCache(groupId, caches, cacheID, capacity);
}
/**
* 给指定账号创建cache，注意如果该cache已经存在，则不再创建并返回已有cache cache支持超时功能，但容量capacity固定，超限后会丢失老数据
*
* @param groupId 输入null，创建全局性账号无关cache
* @param expireTime 小于0（通常为-1）则不检查超时
*/
public <K, V> Cache<K, V> createExpireCache(
String groupId, CacheKey cacheID, int capacity, long expireTime) {
if (groupId == null) {
groupId = GLOBAL_CACHE_GROUP_ID;
}
Map<CacheKey, Cache> caches;
synchronized (cacheMap) {
caches = cacheMap.get(groupId);
if (caches == null) {
caches = new ConcurrentHashMap<>();
cacheMap.put(groupId, caches);
LogUtil.w(sTAG, groupId + " caches not exist, warning.");
}
}
Cache<K, V> cache = caches.get(cacheID);
if (cache == null) {
cache = new ExpireCache<>(groupId, capacity, expireTime);
caches.put(cacheID, cache);
} else {
cache.setCapacity(capacity);
}
return cache;
}