private EfMappingViewCache CreateEfMappingViewCache()
{
var views = _mappingViewsFileStore.Load();
if (views == null)
{
_logger.Warning(() => $"Pre-generated mapping views not found. This will result in slower startup performance.");
return(null);
}
return(new EfMappingViewCache(views));
}
private void GenerateAndSaveViews()
{
var sw = Stopwatch.StartNew();
var mappingCollection = (StorageMappingItemCollection)_metadataWorkspaceFileProvider.MetadataWorkspace.GetItemCollection(DataSpace.CSSpace);
var hash = mappingCollection.ComputeMappingHashValue();
_performanceLogger.Write(sw, () => $"Calculated hash for current model.");
string additionalHash = _efMappingViewsHash.GetAdditionalHash();
_performanceLogger.Write(sw, () => $"Calculated additional hash.");
var currentViewCache = _efMappingViewsFileStore.Load();
if (!string.IsNullOrEmpty(currentViewCache?.Hash) &&
currentViewCache.Hash == hash &&
currentViewCache.AdditionalHash == additionalHash)
{
_logger.Trace(() => $"Hash not changed. View cache is valid. Skipping generation.");
return;
}
sw.Restart();
var errors = new List <EdmSchemaError>();
var newViews = mappingCollection.GenerateViews(errors)
.ToDictionary(a => EfMappingViewCache.GetExtentKey(a.Key), a => a.Value.EntitySql);
foreach (var edmSchemaError in errors)
{
_logger.Warning(() => $"{edmSchemaError}");
}
var newViewCache = new EfMappingViews {
Hash = hash, Views = newViews, AdditionalHash = additionalHash
};
_performanceLogger.Write(sw, () => $"Generated new views. Old hash != new hash ('{currentViewCache?.Hash}' != '{hash}').");
_efMappingViewsFileStore.Save(newViewCache);
}