public override IndexInput OpenInput(string name)
{
if (_blobMetaLookup == null)
{
ReloadMetadata();
}
try
{
BlobMeta blobMeta;
if (_blobMetaLookup.TryGetValue(name, out blobMeta) && blobMeta.HasData)
{
return(new FastAzureIndexInput(this, blobMeta));
}
CloudBlockBlob blockBlobReference = this.BlobContainer.GetBlockBlobReference(_rootFolder + name);
blockBlobReference.FastFetchAttribute();
BlobMeta newMeta;
var input = new FastAzureIndexInput(this, blockBlobReference, out newMeta);
if (newMeta.HasData)
{
BlobMeta tmp;
if (_blobMetaLookup.TryRemove(name, out tmp))
{
_blobMetaLookup.TryAdd(name, newMeta);
}
}
return(input);
}
catch (Exception ex)
{
throw new FileNotFoundException(name, ex);
}
}
public FastAzureIndexInput(FastAzureIndexInput cloneInput)
{
this._fileMutex = BlobMutexManager.GrabMutex(cloneInput._name);
this._fileMutex.WaitOne();
try
{
this._azureDirectory = cloneInput._azureDirectory;
this._blobContainer = cloneInput._blobContainer;
this._blob = cloneInput._blob;
this._indexInput = cloneInput._indexInput.Clone() as IndexInput;
}
catch (Exception ex)
{
}
finally
{
this._fileMutex.ReleaseMutex();
}
}