private static void InitializeSchemaCacheItem(RepositoryCacheItem cacheItem)
{
using (var context = new DatastoreEntities())
{
var r = context.Repository.FirstOrDefault(x => x.UniqueKey == cacheItem.Key && !x.IsDeleted && x.IsInitialized);
if (r == null)
{
cacheItem.IsInitialized = true;
cacheItem.Exists = false;
return;
}
;
var retval = new RepositorySchema
{
InternalID = r.RepositoryId,
ChangeStamp = r.Changestamp
};
retval.LoadXml(r.DefinitionData);
cacheItem.IsInitialized = true;
cacheItem.Exists = true;
cacheItem.Xml = retval.ToXml(true);
cacheItem.VersionHash = retval.VersionHash; // Cache the version to reduce number of calculations
cacheItem.InternalId = retval.InternalID;
cacheItem.HasParent = (r.ParentId != null);
}
}
private void ClearSchemaCacheItem(RepositoryCacheItem cacheItem)
{
if (cacheItem.IsInitialized && cacheItem.Exists)
{
_schemaParentCache.TryRemove(cacheItem.InternalId, out var _);
}
cacheItem.IsInitialized = false;
cacheItem.Xml = null;
}
private static bool TryGetCachedSchemaValue <T>(RepositoryCacheItem cacheItem, Func <RepositoryCacheItem, T> valueGetter, out T value)
{
value = default(T);
using (cacheItem.EnterReadLock(LockTimeOut))
{
if (cacheItem.IsInitialized)
{
value = cacheItem.Exists ? valueGetter(cacheItem) : default(T);
return(true);
}
return(false);
}
}