public AzureIndexInput(AzureIndexInput cloneInput)
{
_fileMutex = SyncMutexManager.GrabMutex(cloneInput._azureDirectory, 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 RemoteDirectoryIndexInput(RemoteDirectoryIndexInput cloneInput)
{
_name = cloneInput._name;
_remoteSyncDirectory = cloneInput._remoteSyncDirectory;
if (string.IsNullOrWhiteSpace(_name))
{
throw new ArgumentNullException(nameof(cloneInput._name));
}
if (_remoteSyncDirectory == null)
{
throw new ArgumentNullException(nameof(cloneInput._remoteSyncDirectory));
}
_fileMutex = SyncMutexManager.GrabMutex(cloneInput._remoteSyncDirectory, cloneInput._name);
_fileMutex.WaitOne();
try
{
#if FULLDEBUG
Trace.WriteLine($"Creating clone for {cloneInput._name}");
#endif
_indexInput = cloneInput._indexInput.Clone() as IndexInput;
}
catch (Exception)
{
// sometimes we get access denied on the 2nd stream...but not always. I haven't tracked it down yet
// but this covers our tail until I do
Trace.TraceError($"Dagnabbit, falling back to memory clone for {cloneInput._name}");
}
finally
{
_fileMutex.ReleaseMutex();
}
}
public AzureIndexOutput(AzureDirectory azureDirectory, ICloudBlob blob, string name)
{
if (azureDirectory == null)
{
throw new ArgumentNullException(nameof(azureDirectory));
}
//TODO: _name was null here, is this intended? https://github.com/azure-contrib/AzureDirectory/issues/19
// I have changed this to be correct now
_name = name;
_azureDirectory = azureDirectory;
_fileMutex = SyncMutexManager.GrabMutex(_azureDirectory, _name);
_fileMutex.WaitOne();
try
{
_blobContainer = _azureDirectory.BlobContainer;
_blob = blob;
_name = blob.Uri.Segments[blob.Uri.Segments.Length - 1];
// create the local cache one we will operate against...
_indexOutput = CacheDirectory.CreateOutput(_name);
}
finally
{
_fileMutex.ReleaseMutex();
}
}
public RemoteDirectoryIndexOutput(RemoteSyncDirectory azureSyncDirectory, string name,
ILoggingService loggingService)
{
//NOTE: _name was null here, is this intended? https://github.com/azure-contrib/AzureDirectory/issues/19 I have changed this to be correct now
_name = name;
_azureSyncDirectory = azureSyncDirectory ?? throw new ArgumentNullException(nameof(azureSyncDirectory));
_azureRemoteDirectory = _azureSyncDirectory.RemoteDirectory;
_fileMutex = SyncMutexManager.GrabMutex(_azureSyncDirectory, _name);
_fileMutex.WaitOne();
try
{
// create the local cache one we will operate against...
_indexOutput = CacheDirectory.CreateOutput(_name);
}
finally
{
_fileMutex.ReleaseMutex();
}
}
public AzureIndexOutput(AzureDirectory azureDirectory, ICloudBlob blob)
{
if (azureDirectory == null)
{
throw new ArgumentNullException(nameof(azureDirectory));
}
_azureDirectory = azureDirectory;
_fileMutex = SyncMutexManager.GrabMutex(_azureDirectory, _name);
_fileMutex.WaitOne();
try
{
_blobContainer = _azureDirectory.BlobContainer;
_blob = blob;
_name = blob.Uri.Segments[blob.Uri.Segments.Length - 1];
// create the local cache one we will operate against...
_indexOutput = CacheDirectory.CreateOutput(_name);
}
finally
{
_fileMutex.ReleaseMutex();
}
}
public AzureIndexInput(AzureDirectory azuredirectory, ICloudBlob blob)
{
if (azuredirectory == null)
{
throw new ArgumentNullException(nameof(azuredirectory));
}
_name = blob.Uri.Segments[blob.Uri.Segments.Length - 1];
_azureDirectory = azuredirectory;
#if FULLDEBUG
Debug.WriteLine(String.Format("opening {0} ", _name));
#endif
_fileMutex = SyncMutexManager.GrabMutex(_azureDirectory, _name);
_fileMutex.WaitOne();
try
{
_blobContainer = azuredirectory.BlobContainer;
_blob = blob;
var fileName = _name;
var fFileNeeded = false;
if (!CacheDirectory.FileExists(fileName))
{
fFileNeeded = true;
}
else
{
long cachedLength = CacheDirectory.FileLength(fileName);
string blobLengthMetadata;
bool hasMetadataValue = blob.Metadata.TryGetValue("CachedLength", out blobLengthMetadata);
long blobLength = blob.Properties.Length;
if (hasMetadataValue)
{
long.TryParse(blobLengthMetadata, out blobLength);
}
string blobLastModifiedMetadata;
long longLastModified = 0;
DateTime blobLastModifiedUTC = blob.Properties.LastModified.Value.UtcDateTime;
if (blob.Metadata.TryGetValue("CachedLastModified", out blobLastModifiedMetadata))
{
if (long.TryParse(blobLastModifiedMetadata, out longLastModified))
{
blobLastModifiedUTC = new DateTime(longLastModified).ToUniversalTime();
}
}
if (cachedLength != blobLength)
{
fFileNeeded = true;
}
else
{
// cachedLastModifiedUTC was not ouputting with a date (just time) and the time was always off
long unixDate = CacheDirectory.FileModified(fileName);
DateTime start = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
var cachedLastModifiedUTC = start.AddMilliseconds(unixDate).ToUniversalTime();
if (cachedLastModifiedUTC != blobLastModifiedUTC)
{
var timeSpan = blobLastModifiedUTC.Subtract(cachedLastModifiedUTC);
if (timeSpan.TotalSeconds > 1)
{
fFileNeeded = true;
}
else
{
#if FULLDEBUG
Debug.WriteLine(timeSpan.TotalSeconds);
#endif
// file not needed
}
}
}
}
// if the file does not exist
// or if it exists and it is older then the lastmodified time in the blobproperties (which always comes from the blob storage)
if (fFileNeeded)
{
if (_azureDirectory.ShouldCompressFile(_name))
{
InflateStream(fileName);
}
else
{
using (var fileStream = _azureDirectory.CreateCachedOutputAsStream(fileName))
{
// get the blob
_blob.DownloadToStream(fileStream);
fileStream.Flush();
Debug.WriteLine(string.Format("GET {0} RETREIVED {1} bytes", _name, fileStream.Length));
}
}
// and open it as an input
_indexInput = CacheDirectory.OpenInput(fileName);
}
else
{
#if FULLDEBUG
Debug.WriteLine(String.Format("Using cached file for {0}", _name));
#endif
// open the file in read only mode
_indexInput = CacheDirectory.OpenInput(fileName);
}
}
finally
{
_fileMutex.ReleaseMutex();
}
}
public RemoteDirectoryIndexInput(RemoteSyncDirectory azuredirectory, IRemoteDirectory helper, string name,
ILoggingService loggingService)
{
_name = name;
_name = _name.Split(new string[] { "%2F" }, StringSplitOptions.RemoveEmptyEntries).Last();
_remoteSyncDirectory = azuredirectory ?? throw new ArgumentNullException(nameof(azuredirectory));
#if FULLDEBUG
Trace.WriteLine($"opening {_name} ");
#endif
_fileMutex = SyncMutexManager.GrabMutex(_remoteSyncDirectory, _name);
_fileMutex.WaitOne();
try
{
var fileName = _name;
var fFileNeeded = false;
if (!CacheDirectory.FileExists(fileName))
{
fFileNeeded = true;
}
else
{
var cachedLength = CacheDirectory.FileLength(fileName);
var blobProperties = helper.GetFileProperties(fileName);
if (cachedLength != blobProperties.Item1)
{
fFileNeeded = true;
}
else
{
// cachedLastModifiedUTC was not ouputting with a date (just time) and the time was always off
var unixDate = CacheDirectory.FileModified(fileName);
var start = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
var cachedLastModifiedUtc = start.AddMilliseconds(unixDate).ToUniversalTime();
if (cachedLastModifiedUtc != blobProperties.Item2)
{
var timeSpan = blobProperties.Item2.Subtract(cachedLastModifiedUtc);
if (timeSpan.TotalSeconds > 1)
{
fFileNeeded = true;
}
else
{
#if FULLDEBUG
Trace.WriteLine(timeSpan.TotalSeconds);
#endif
// file not needed
}
}
}
}
// if the file does not exist
// or if it exists and it is older then the lastmodified time in the blobproperties (which always comes from the blob storage)
if (fFileNeeded)
{
helper.SyncFile(CacheDirectory, fileName, azuredirectory.CompressBlobs);
// and open it as an input
_indexInput = CacheDirectory.OpenInput(fileName);
}
else
{
#if FULLDEBUG
Trace.WriteLine($"Using cached file for {_name}");
#endif
// open the file in read only mode
_indexInput = CacheDirectory.OpenInput(fileName);
}
}
finally
{
_fileMutex.ReleaseMutex();
}
}
