/// <summary>
/// Add or update a mapping in cache.
/// </summary>
/// <param name="sm">Storage mapping object.</param>
/// <param name="policy">Policy to use for preexisting cache entries during update.</param>
internal override void AddOrUpdate(IStoreMapping sm, CacheStoreMappingUpdatePolicy policy)
{
// Make key out of mapping key.
ShardKey key = ShardKey.FromRawValue(this.KeyType, sm.MinValue);
CacheMapping cm;
// We need to update TTL and update entry if:
// a) We are in update TTL mode
// b) Mapping exists and same as the one we already have
// c) Entry is beyond the TTL limit
if (policy == CacheStoreMappingUpdatePolicy.UpdateTimeToLive &&
_mappingsByKey.TryGetValue(key, out cm) &&
cm.Mapping.Id == sm.Id /*&&
* TimerUtils.ElapsedMillisecondsSince(cm.CreationTime) >= cm.TimeToLiveMilliseconds */)
{
cm = new CacheMapping(sm, CacheMapper.CalculateNewTimeToLiveMilliseconds(cm));
}
else
{
cm = new CacheMapping(sm);
}
// Remove existing entry.
this.Remove(sm);
// Add the entry to lookup table by Key.
_mappingsByKey.Add(key, cm);
}
/// <summary>
/// Add or update a mapping in cache.
/// </summary>
/// <param name="sm">Storage mapping object.</param>
/// <param name="policy">Policy to use for preexisting cache entries during update.</param>
internal override void AddOrUpdate(IStoreMapping sm, CacheStoreMappingUpdatePolicy policy)
{
ShardKey min = ShardKey.FromRawValue(this.KeyType, sm.MinValue);
// Make range out of mapping key ranges.
ShardRange range = new ShardRange(
min,
ShardKey.FromRawValue(this.KeyType, sm.MaxValue));
CacheMapping cm;
ICacheStoreMapping csm;
IStoreMapping smDummy;
// We need to update TTL and update entry if:
// a) We are in update TTL mode
// b) Mapping exists and same as the one we already have
// c) Entry is beyond the TTL limit
if (policy == CacheStoreMappingUpdatePolicy.UpdateTimeToLive &&
(csm = this.LookupByKey(min, out smDummy)) != null &&
csm.Mapping.Id == sm.Id /*&&
* TimerUtils.ElapsedMillisecondsSince(csm.CreationTime) >= csm.TimeToLiveMilliseconds */)
{
cm = new CacheMapping(sm, CacheMapper.CalculateNewTimeToLiveMilliseconds(csm));
}
else
{
cm = new CacheMapping(sm);
}
this.Remove(sm);
// Add the entry to lookup table by Range.
_mappingsByRange.Add(range, cm);
}