/**
* Constructor which specifies the cacheName as well as the sizeLimit, expireTime and
* useSoftReference. The passed sizeLimit, expireTime and useSoftReference will be overridden by
* values from cache.properties if found.
*
* @param sizeLimit The sizeLimit member is set to this value
* @param expireTime The expireTime member is set to this value
* @param cacheName The name of the cache.
* @param useSoftReference Specifies whether or not to use soft references for this cache.
*/
private UtilCache(
String cacheName,
int sizeLimit,
int maxInMemory,
long expireTimeMillis,
boolean useSoftReference,
boolean useFileSystemStore,
String propName,
String... propNames) {
this.name = cacheName;
this.sizeLimit = sizeLimit;
this.maxInMemory = maxInMemory;
this.expireTimeNanos = TimeUnit.NANOSECONDS.convert(expireTimeMillis, TimeUnit.MILLISECONDS);
this.useSoftReference = useSoftReference;
this.useFileSystemStore = useFileSystemStore;
setPropertiesParams(propName);
setPropertiesParams(propNames);
int maxMemSize = this.maxInMemory;
if (maxMemSize == 0) maxMemSize = sizeLimit;
if (maxMemSize == 0) {
memoryTable = new ConcurrentHashMap<Object, CacheLine<V>>();
} else {
memoryTable =
new Builder<Object, CacheLine<V>>()
.maximumWeightedCapacity(maxMemSize)
.listener(this)
.build();
}
if (this.useFileSystemStore) {
// create the manager the first time it is needed
jdbmMgr = fileManagers.get(fileStore);
if (jdbmMgr == null) {
Debug.logImportant(
"Creating file system cache store for cache with name: " + cacheName, module);
try {
String hazeHome = System.getProperty("haze.home");
if (hazeHome == null) {
Debug.logError("No haze.home property set in environment", module);
} else {
jdbmMgr = new JdbmRecordManager(hazeHome + "/" + fileStore);
}
} catch (IOException e) {
Debug.logError(
e,
"Error creating file system cache store for cache with name: " + cacheName,
module);
}
fileManagers.putIfAbsent(fileStore, jdbmMgr);
}
jdbmMgr = fileManagers.get(fileStore);
if (jdbmMgr != null) {
try {
this.fileTable = HTree.createInstance(jdbmMgr);
jdbmMgr.setNamedObject(cacheName, this.fileTable.getRecid());
jdbmMgr.commit();
} catch (IOException e) {
Debug.logError(e, module);
}
}
}
}
