public void When_Comparing_Two_Equal_TDBlobKey_Instances_Equals_Is_True()
{
var arr = new byte[] { 87, 79, 87, 46, 46, 46 };
var key = new TDBlobKey(arr);
var equals = key.Equals(new TDBlobKey(arr));
Assert.That(equals, Is.True);
}
public bool StoreBlobStream(Stream stream, TDBlobKey outKey)
{
FileStream fs = null;
try
{
var tempFileName = System.IO.Path.Combine(Path, TMP_FILE_PREFIX);
tempFileName = System.IO.Path.Combine(tempFileName, TMP_FILE_EXTENSION); //would be nice to have this in SL4 profile
fs = File.Create(tempFileName);
var buffer = new byte[65536];
var lenRead = stream.Read(buffer, 0, 8);
using (var sr = new StreamReader(stream))
{
}
}
catch (Exception)
{
throw;
}
throw new NotImplementedException();
}
public long GetSizeOfBlob(TDBlobKey key)
{
var path = GetPathForKey(key);
var fileInfo = new FileInfo(path);
return fileInfo.OpenText().ReadToEnd().Length; //TODO: make efficient
}
public bool StoreBlob(byte[] data, TDBlobKey outKey)
{
var newKey = GetKeyForBlob(data);
outKey.Bytes = newKey.Bytes;
var path = GetPathForKey(outKey);
var fileStream = new FileStream(path, FileMode.Open);
if (fileStream.CanRead)
return true;
using (var sw = new StreamWriter(fileStream))
{
}
throw new NotImplementedException();
}
public bool GetKeyForFileName(TDBlobKey outKey, string fileName)
{
if (!fileName.EndsWith(FILE_EXTENSION))
return false;
var rest = System.IO.Path.GetFileNameWithoutExtension(fileName);
outKey.Bytes = TDBlobKey.ConvertFromHex(rest);
return true;
}
public string GetPathForKey(TDBlobKey key)
{
return Path + System.IO.Path.PathSeparator + TDBlobKey.ConvertToHex(key.Bytes) + FILE_EXTENSION;
}
public Stream GetBlobStreamForKey(TDBlobKey key)
{
var path = GetPathForKey(key);
var fileInfo = new FileInfo(path);
var fs = new FileStream(fileInfo.FullName, FileMode.Open);
if (fs.CanRead)
{
return fs;
}
return null;
}
public byte[] GetBlobForKey(TDBlobKey key)
{
var path = GetPathForKey(key);
var fileInfo = new FileInfo(path);
byte[] result = null;
result = GetBytesFromFile(fileInfo);
return result;
}
public int DeleteBlobExceptWithKeys(IList<TDBlobKey> keysToKeep)
{
var numDeleted = 0;
var files = Directory.GetFiles(Path);
foreach (var file in files)
{
var attachmentKey = new TDBlobKey();
GetKeyForFileName(attachmentKey, file);
if (!keysToKeep.Contains(attachmentKey))
{
File.Delete(file);
++numDeleted;
}
}
return numDeleted;
}
public static TDBlobKey GetKeyForBlobFromFile(FileInfo file)
{
//TODO: check for failure to create SHA-1?
var ha = new SHA1Managed();
var sha1Hash = new byte[40];
var buffer = new byte[65536];
using (var fileStream = new FileStream(file.FullName, FileMode.Open))
{
var lenRead = fileStream.Read(buffer, 0, 8);
while (lenRead > 0)
{
lenRead = fileStream.Read(buffer, lenRead, 8);
}
}
//TODO: Revisit Java approach of updating digest on read
sha1Hash = ha.ComputeHash(buffer);
var result = new TDBlobKey(sha1Hash);
return result;
}
public static TDBlobKey GetKeyForBlob(byte[] bytes)
{
//TODO: check for failure to create SHA-1?
var ha = new SHA1Managed();
var sha1Hash = new byte[40];
var hashed = ha.ComputeHash(sha1Hash);
var result = new TDBlobKey(hashed);
return result;
}
