/*
* /// <summary>
* /// Invoked for updating specified performance counter for a cached shard map object.
* /// </summary>
* /// <param name="shardMap">Storage representation of a shard map.</param>
* /// <param name="name">Performance counter to increment.</param>
* public void IncrementPerformanceCounter(IStoreShardMap shardMap, PerformanceCounterName name)
* {
* using (ReadLockScope rls = _cacheRoot.GetReadLockScope(false))
* {
* CacheShardMap csm = _cacheRoot.LookupById(shardMap.Id);
*
* if (csm != null)
* {
* using (ReadLockScope rlsShardMap = csm.GetReadLockScope(false))
* {
* csm.IncrementPerformanceCounter(name);
* }
* }
* }
* }
*/
/// <summary>
/// Clears the cache.
/// </summary>
public virtual void Clear()
{
using (WriteLockScope wls = _cacheRoot.GetWriteLockScope())
{
_cacheRoot.Clear();
}
}
/// <summary>
/// Invoked for deleting mapping in cache becase it no longer exists in store.
/// </summary>
/// <param name="mapping">Storage representation of mapping.</param>
public virtual void DeleteMapping(IStoreMapping mapping)
{
using (ReadLockScope rls = _cacheRoot.GetReadLockScope(false))
{
CacheShardMap csm = _cacheRoot.LookupById(mapping.ShardMapId);
if (csm != null)
{
using (WriteLockScope wlscsm = csm.GetWriteLockScope())
{
csm.Mapper.Remove(mapping);
/*
* // Update perf counters for remove mapping operation and mappings count.
* csm.IncrementPerformanceCounter(PerformanceCounterName.MappingsRemovePerSec);
* csm.SetPerformanceCounter(PerformanceCounterName.MappingsCount, csm.Mapper.GetMappingsCount());
*/
Tracer.TraceVerbose(
TraceSourceConstants.ComponentNames.ShardMapManager,
"OnDeleteMapping",
"Cache delete mapping complete. Mapping Id: {0}",
mapping.Id);
}
}
}
}
/// <summary>
/// Invoked for deleting shard map in cache becase it no longer exists in store.
/// </summary>
/// <param name="shardMap">Storage representation of shard map.</param>
public virtual void DeleteShardMap(IStoreShardMap shardMap)
{
using (WriteLockScope wls = _cacheRoot.GetWriteLockScope())
{
_cacheRoot.Remove(shardMap);
Tracer.TraceVerbose(
TraceSourceConstants.ComponentNames.ShardMapManager,
"OnDeleteShardMap",
"Cache delete complete. ShardMap: {0}",
shardMap.Name);
}
}
