public AzureIndexInput(AzureIndexInput cloneInput)
{
_fileMutex = BlobMutexManager.GrabMutex(cloneInput._name);
_fileMutex.WaitOne();
try
{
#if FULLDEBUG
Debug.WriteLine(String.Format("Creating clone for {0}", cloneInput._name));
#endif
_azureDirectory = cloneInput._azureDirectory;
_blobContainer = cloneInput._blobContainer;
_blob = cloneInput._blob;
_indexInput = cloneInput._indexInput.Clone() as IndexInput;
}
catch (Exception)
{
// sometimes we get access denied on the 2nd stream...but not always. I haven't tracked it down yet
// but this covers our tail until I do
Debug.WriteLine(String.Format("Dagnabbit, falling back to memory clone for {0}", cloneInput._name));
}
finally
{
_fileMutex.ReleaseMutex();
}
}
public override Object Clone()
{
var clone = new AzureIndexInput(this._azureDirectory, this._name, this._blob);
clone.Seek(this.GetFilePointer());
return(clone);
}
/// <summary>Returns a stream reading an existing file. </summary>
public override IndexInput OpenInput(System.String name)
{
try
{
CloudBlob blob = _blobContainer.GetBlobReference(name);
blob.FetchAttributes();
AzureIndexInput input = new AzureIndexInput(this, blob);
return(input);
}
catch (Exception err)
{
throw new System.IO.FileNotFoundException(name, err);
}
}
/// <summary>Returns a stream reading an existing file. </summary>
public override IndexInput openInput(string name, IOContext ioc)
{
try
{
var blob = BlobContainer.GetBlockBlobReference(name);
blob.FetchAttributes();
var input = new AzureIndexInput(this, blob);
return(input);
}
catch (StorageException)
{
throw new NoSuchFileException(name);
}
}
public override object Clone()
{
IndexInput clone = null;
try
{
_fileMutex.WaitOne();
clone = new AzureIndexInput(this, "clone");
}
catch (Exception err)
{
Debug.WriteLine(err.ToString());
}
finally
{
_fileMutex.ReleaseMutex();
}
Debug.Assert(clone != null);
return(clone);
}
public AzureIndexInput(AzureIndexInput cloneInput)
: base(cloneInput._blob.Name)
{
_fileMutex = BlobMutexManager.GrabMutex(cloneInput._name);
_fileMutex.WaitOne();
try
{
_azureDirectory = cloneInput._azureDirectory;
_blobContainer = cloneInput._blobContainer;
_blob = cloneInput._blob;
_indexInput = cloneInput._indexInput.clone();
}
catch (Exception)
{
// sometimes we get access denied on the 2nd stream...but not always. I haven't tracked it down yet
// but this covers our tail until I do
Debug.WriteLine(String.Format("Dagnabbit, falling back to memory clone for {0}", cloneInput._name));
}
finally
{
_fileMutex.ReleaseMutex();
}
}
public override System.Object Clone()
{
IndexInput clone = null;
try
{
_fileMutex.WaitOne();
AzureIndexInput input = new AzureIndexInput(this);
clone = (IndexInput)input;
}
catch (System.Exception err)
{
Debug.WriteLine(err.ToString());
}
finally
{
_fileMutex.ReleaseMutex();
}
Debug.Assert(clone != null);
return clone;
}
/// <summary>Returns a stream reading an existing file. </summary>
public override IndexInput OpenInput(System.String name)
{
try
{
CloudBlob blob = _blobContainer.GetBlobReference(name);
blob.FetchAttributes();
AzureIndexInput input = new AzureIndexInput(this, blob);
return input;
}
catch (Exception err)
{
throw new System.IO.FileNotFoundException(name, err);
}
}
/// <summary>Returns a stream reading an existing file. </summary>
public override IndexInput openInput(string name, IOContext ioc)
{
try
{
var blob = BlobContainer.GetBlockBlobReference(name);
blob.FetchAttributes();
var input = new AzureIndexInput(this, blob);
return input;
}
catch (StorageException)
{
throw new NoSuchFileException(name);
}
}
public AzureIndexInput(AzureIndexInput cloneInput)
{
_fileMutex = new Mutex(false, cloneInput._name);
_fileMutex.WaitOne();
try
{
#if FULLDEBUG
Debug.WriteLine(String.Format("Creating clone for {0}", cloneInput._name));
#endif
_azureDirectory = cloneInput._azureDirectory;
_blobContainer = cloneInput._blobContainer;
_blob = cloneInput._blob;
_indexInput = cloneInput._indexInput.Clone() as IndexInput;
}
catch (Exception)
{
// sometimes we get access denied on the 2nd stream...but not always. I haven't tracked it down yet
// but this covers our tail until I do
Debug.WriteLine(String.Format("Dagnabbit, falling back to memory clone for {0}", cloneInput._name));
}
finally
{
_fileMutex.ReleaseMutex();
}
}
/// <summary>Returns a stream reading an existing file. </summary>
public override IndexInput OpenInput(System.String name)
{
var cache = MemoryCache.Default;
try
{
CloudBlockBlob blob;
var key = string.Format(KeyPattern, name);
if (cache.Contains(key)) {
blob = cache.Get(key) as CloudBlockBlob;
}
else
{
blob = _blobContainer.GetBlockBlobReference(name);
blob.FetchAttributes();
cache.Set(key, blob, DateTime.Now.AddMinutes(5));
}
AzureIndexInput input = new AzureIndexInput(this, blob);
return input;
}
catch (Exception err)
{
throw new System.IO.FileNotFoundException(name, err);
}
}
