本文整理汇总了C#中ICloudBlob.DownloadToStream方法的典型用法代码示例。如果您正苦于以下问题：C# ICloudBlob.DownloadToStream方法的具体用法？C# ICloudBlob.DownloadToStream怎么用？C# ICloudBlob.DownloadToStream使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ICloudBlob的用法示例。
在下文中一共展示了ICloudBlob.DownloadToStream方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: AzureIndexInput
public AzureIndexInput(AzureDirectory azuredirectory, ICloudBlob blob)
: base(blob.Name)
{
_name = blob.Uri.Segments[blob.Uri.Segments.Length - 1];
_fileMutex = BlobMutexManager.GrabMutex(_name);
_fileMutex.WaitOne();
try
{
_azureDirectory = azuredirectory;
_blobContainer = azuredirectory.BlobContainer;
_blob = blob;
string fileName = _name;
StreamOutput fileStream = _azureDirectory.CreateCachedOutputAsStream(fileName);
// get the blob
_blob.DownloadToStream(fileStream);
fileStream.Flush();
Debug.WriteLine("GET {0} RETREIVED {1} bytes", _name, fileStream.Length);
fileStream.Close();
// and open it as an input
_indexInput = CacheDirectory.openInput(fileName, IOContext.DEFAULT);
}
finally
{
_fileMutex.ReleaseMutex();
}
}示例2: AzureIndexInput
public AzureIndexInput(AzureDirectory azuredirectory, ICloudBlob blob)
{
_name = blob.Uri.Segments[blob.Uri.Segments.Length - 1];
#if FULLDEBUG
Debug.WriteLine(String.Format("opening {0} ", _name));
#endif
_fileMutex = BlobMutexManager.GrabMutex(_name);
_fileMutex.WaitOne();
try
{
_azureDirectory = azuredirectory;
_blobContainer = azuredirectory.BlobContainer;
_blob = blob;
string fileName = _name;
bool fFileNeeded = false;
if (!CacheDirectory.FileExists(fileName))
{
fFileNeeded = true;
}
else
{
long cachedLength = CacheDirectory.FileLength(fileName);
long blobLength = blob.Properties.Length;
long.TryParse(blob.Metadata["CachedLength"], out blobLength);
long longLastModified = 0;
DateTime blobLastModifiedUTC = blob.Properties.LastModified.Value.UtcDateTime;
//if (long.TryParse(blob.Metadata["CachedLastModified"], out longLastModified))
// blobLastModifiedUTC = new DateTime(longLastModified, DateTimeKind.Local).ToUniversalTime();
if (cachedLength != blobLength)
fFileNeeded = true;
else
{
// there seems to be an error of 1 tick which happens every once in a while
// for now we will say that if they are within 1 tick of each other and same length
DateTime cachedLastModifiedUTC = DateTime.MinValue;
if (CacheDirectory is RAMDirectory) {
cachedLastModifiedUTC = new DateTime(CacheDirectory.FileModified(fileName) * TimeSpan.TicksPerMillisecond, DateTimeKind.Local).ToUniversalTime();
}
else if (CacheDirectory is FSDirectory) {
cachedLastModifiedUTC = new DateTime(CacheDirectory.FileModified(fileName) * TimeSpan.TicksPerMillisecond, DateTimeKind.Utc).ToUniversalTime().AddYears(1969);
}
if (cachedLastModifiedUTC != blobLastModifiedUTC)
{
TimeSpan 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 COMPRESSBLOBS
if (_azureDirectory.ShouldCompressFile(_name))
{
// then we will get it fresh into local deflatedName
// StreamOutput deflatedStream = new StreamOutput(CacheDirectory.CreateOutput(deflatedName));
MemoryStream deflatedStream = new MemoryStream();
// get the deflated blob
_blob.DownloadToStream(deflatedStream);
Debug.WriteLine(string.Format("GET {0} RETREIVED {1} bytes", _name, deflatedStream.Length));
// seek back to begininng
deflatedStream.Seek(0, SeekOrigin.Begin);
// open output file for uncompressed contents
StreamOutput fileStream = _azureDirectory.CreateCachedOutputAsStream(fileName);
// create decompressor
DeflateStream decompressor = new DeflateStream(deflatedStream, CompressionMode.Decompress);
byte[] bytes = new byte[65535];
int nRead = 0;
do
{
nRead = decompressor.Read(bytes, 0, 65535);
if (nRead > 0)
fileStream.Write(bytes, 0, nRead);
} while (nRead == 65535);
decompressor.Close(); // this should close the deflatedFileStream too
fileStream.Close();
}
//.........这里部分代码省略.........
示例3: DownloadText
public static string DownloadText(ICloudBlob blob, Encoding encoding, AccessCondition accessCondition = null, BlobRequestOptions options = null, OperationContext operationContext = null)
{
using (MemoryStream stream = new MemoryStream())
{
blob.DownloadToStream(stream, accessCondition, options, operationContext);
return encoding.GetString(stream.ToArray());
}
}示例4: AzureIndexInput
public AzureIndexInput(AzureDirectory azuredirectory, ICloudBlob blob)
{
_name = blob.Uri.Segments[blob.Uri.Segments.Length - 1];
#if FULLDEBUG
Debug.WriteLine(String.Format("opening {0} ", _name));
#endif
_fileMutex = BlobMutexManager.GrabMutex(_name);
_fileMutex.WaitOne();
try
{
_azureDirectory = azuredirectory;
_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
{
// there seems to be an error of 1 tick which happens every once in a while
// for now we will say that if they are within 1 tick of each other and same length
var cachedLastModifiedUTC = new DateTime(CacheDirectory.FileModified(fileName), DateTimeKind.Local).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();
}
}示例5: AzureIndexInput
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
{
//.........这里部分代码省略.........