protected HistoricalDataCache MakeTimeCache(
ConfigurationCommonCacheExpiryTime expCache,
AgentInstanceContext agentInstanceContext,
int streamNum,
int scheduleCallbackId)
{
return new HistoricalDataCacheExpiringImpl(
expCache.MaxAgeSeconds,
expCache.PurgeIntervalSeconds,
expCache.CacheReferenceType,
agentInstanceContext,
agentInstanceContext.ScheduleBucket.AllocateSlot());
}
/// <summary>
/// Creates a cache implementation for the strategy as defined by the cache descriptor.
/// </summary>
/// <param name="cacheDesc">cache descriptor</param>
/// <param name="agentInstanceContext">agent instance context</param>
/// <param name="streamNum">stream number</param>
/// <param name="scheduleCallbackId">callback id</param>
/// <returns>data cache implementation</returns>
public HistoricalDataCache GetDataCache(
ConfigurationCommonCache cacheDesc,
AgentInstanceContext agentInstanceContext,
int streamNum,
int scheduleCallbackId)
{
if (cacheDesc == null) {
return new HistoricalDataCacheNullImpl();
}
if (cacheDesc is ConfigurationCommonCacheLRU) {
ConfigurationCommonCacheLRU lruCache = (ConfigurationCommonCacheLRU) cacheDesc;
return new HistoricalDataCacheLRUImpl(lruCache.Size);
}
if (cacheDesc is ConfigurationCommonCacheExpiryTime) {
ConfigurationCommonCacheExpiryTime expCache = (ConfigurationCommonCacheExpiryTime) cacheDesc;
return MakeTimeCache(expCache, agentInstanceContext, streamNum, scheduleCallbackId);
}
throw new IllegalStateException("Cache implementation class not configured");
}
