/**
* Provides implementation of Add method of the ICacheStorage interface. Add the key value pair to
* the store. *
*
* @param key key
* @param item object
* @return returns the result of operation.
*/
@Override
public StoreAddResult Add(Object key, Object item, boolean allowExtentedSize) {
try {
if (ServerMonitor.getMonitorActivity()) {
ServerMonitor.LogClientActivity("Store.Add", "");
}
if (_itemDict.containsKey(key)) {
return StoreAddResult.KeyExists;
}
StoreStatus status = HasSpace((ISizable) item, allowExtentedSize);
if (_reportCacheNearEviction) {
CheckForStoreNearEviction();
}
if (status == StoreStatus.HasNotEnoughSpace) {
return StoreAddResult.NotEnoughSpace;
}
_itemDict.put(key, item);
super.Added((ISizable) ((item instanceof ISizable) ? item : null));
if (status == StoreStatus.NearEviction) {
return StoreAddResult.SuccessNearEviction;
}
} catch (OutOfMemoryError e) {
return StoreAddResult.NotEnoughSpace;
} catch (RuntimeException e) {
throw e;
}
return StoreAddResult.Success;
}
/**
* Provides implementation of Remove method of the ICacheStorage interface. Removes an object from
* the store, specified by the passed in key
*
* @param key key
* @return object
*/
@Override
public Object Remove(Object key) {
if (ServerMonitor.getMonitorActivity()) {
ServerMonitor.LogClientActivity("Store.Remove", "");
}
Object e = Get(key);
if (e != null) {
_itemDict.remove(key);
super.Removed((ISizable) ((e instanceof ISizable) ? e : null));
}
return e;
}
/**
* Provides implementation of Insert method of the ICacheStorage interface. Insert/Add the key
* value pair to the store. *
*
* @param key key
* @param item object
* @return returns the result of operation.
*/
@Override
public StoreInsResult Insert(Object key, Object item, boolean allowExtentedSize) {
try {
if (ServerMonitor.getMonitorActivity()) {
ServerMonitor.LogClientActivity("Store.Insert", "");
}
Object oldItem = _itemDict.get(key);
StoreStatus status =
HasSpace(
(ISizable) ((oldItem instanceof ISizable) ? oldItem : null),
(ISizable) item,
allowExtentedSize);
if (_reportCacheNearEviction) {
CheckForStoreNearEviction();
}
if (status == StoreStatus.HasNotEnoughSpace) {
return StoreInsResult.NotEnoughSpace;
}
_itemDict.put(key, item);
super.Inserted(
(ISizable) ((oldItem instanceof ISizable) ? oldItem : null),
(ISizable) ((item instanceof ISizable) ? item : null));
if (status == StoreStatus.NearEviction) {
// the store is almost full, need to evict.
return oldItem != null
? StoreInsResult.SuccessOverwriteNearEviction
: StoreInsResult.SuccessNearEviction;
}
return oldItem != null ? StoreInsResult.SuccessOverwrite : StoreInsResult.Success;
} catch (OutOfMemoryError e) {
return StoreInsResult.NotEnoughSpace;
} catch (RuntimeException e) {
throw e;
}
}
/** Removes all entries from the store. */
@Override
public void Clear() {
_itemDict.clear();
super.Cleared();
}
/**
* Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged
* resources.
*/
@Override
public void dispose() {
_itemDict.clear();
_itemDict = null;
super.dispose();
}
