/// <exception cref="System.IO.IOException"></exception>
internal virtual ByteArrayWindow Read(long pos, int size)
{
lock (readLock)
{
if (length < pos + size)
{
size = (int)(length - pos);
}
byte[] buf = new byte[size];
fd.Seek(pos);
fd.ReadFully(buf, 0, size);
return(new ByteArrayWindow(this, pos, buf));
}
}
/// <exception cref="System.IO.IOException"/>
public static FsImageProto.FileSummary LoadSummary(RandomAccessFile file)
{
int FileLengthFieldSize = 4;
long fileLength = file.Length();
file.Seek(fileLength - FileLengthFieldSize);
int summaryLength = file.ReadInt();
if (summaryLength <= 0)
{
throw new IOException("Negative length of the file");
}
file.Seek(fileLength - FileLengthFieldSize - summaryLength);
byte[] summaryBytes = new byte[summaryLength];
file.ReadFully(summaryBytes);
FsImageProto.FileSummary summary = FsImageProto.FileSummary.ParseDelimitedFrom(new
ByteArrayInputStream(summaryBytes));
if (summary.GetOndiskVersion() != FileVersion)
{
throw new IOException("Unsupported file version " + summary.GetOndiskVersion());
}
if (!NameNodeLayoutVersion.Supports(LayoutVersion.Feature.ProtobufFormat, summary
.GetLayoutVersion()))
{
throw new IOException("Unsupported layout version " + summary.GetLayoutVersion());
}
return(summary);
}
public static byte [] readFile(Java.IO.File file)
{
// Open file
var f = new RandomAccessFile(file, "r");
try {
// Get and check length
long longlength = f.Length();
var length = (int)longlength;
if (length != longlength)
{
throw new Java.IO.IOException("Filesize exceeds allowed size");
}
// Read file and return data
byte [] data = new byte [length];
f.ReadFully(data);
return(data);
} catch (Exception ex) {
System.Diagnostics.Debug.Write(ex);
return(new byte [0]);
} finally {
f.Close();
}
}
public static byte[] ReadFileFromPath(File file)
{
// Open file
var f = new RandomAccessFile(file, "r");
try
{
// Get and check length
var longlength = f.Length();
var length = (int)longlength;
if (length != longlength)
{
throw new IOException("Tamanho do arquivo excede o permitido!");
}
// Read file and return data
var data = new byte[length];
f.ReadFully(data);
return(data);
}
catch (Exception ex)
{
System.Diagnostics.Debug.Write(ex);
return(null);
}
finally
{
f.Close();
f.Dispose();
}
}
public static byte[] readFile(File file)
{
// Open file
var f = new RandomAccessFile(file, "r");
try
{
// Get and check length
long longlength = f.Length();
var length = (int)longlength;
if (length != longlength)
{
throw new IOException("Filesize exceeds allowed size");
}
// Read file and return data
byte[] data = new byte[length];
f.ReadFully(data);
return(data);
}
finally
{
f.Close();
}
}
public static byte[] readFile(Java.IO.File file)
{
// Open file
RandomAccessFile f = new RandomAccessFile(file, "r");
try
{
// Get and check length
long longlength = f.Length();
int length = (int)longlength;
if (length != longlength)
{
throw new Java.IO.IOException("Tamanho do arquivo excede o permitido!");
}
// Read file and return data
byte[] data = new byte[length];
f.ReadFully(data);
return(data);
}
catch (Exception ex)
{
System.Diagnostics.Debug.Write(ex);
return(new byte[0]);
}
finally
{
f.Close();
}
}
/// <summary>Read the header at the beginning of the given block meta file.</summary>
/// <remarks>
/// Read the header at the beginning of the given block meta file.
/// The current file position will be altered by this method.
/// If an error occurs, the file is <em>not</em> closed.
/// </remarks>
/// <exception cref="System.IO.IOException"/>
public static Org.Apache.Hadoop.Hdfs.Server.Datanode.BlockMetadataHeader ReadHeader
(RandomAccessFile raf)
{
byte[] buf = new byte[GetHeaderSize()];
raf.Seek(0);
raf.ReadFully(buf, 0, buf.Length);
return(ReadHeader(new DataInputStream(new ByteArrayInputStream(buf))));
}
//private static String readInstallationFile(File installation)
//{
// RandomAccessFile f = new RandomAccessFile(installation, "r");
// byte[] bytes = new byte[(int)f.Length()];
// f.ReadFully(bytes);
// f.Close();
// return new Java.Lang.String(bytes).ToString();
//}
private static String readInstallationFile(Java.IO.File installation)
{
RandomAccessFile f = new RandomAccessFile(installation, "r");
byte[] bytes = new byte[(int)f.Length()];
f.ReadFully(bytes);
f.Close();
return(new Java.Lang.String(bytes).ToString());
}
private static string readInstallationFile(File installation)
{
RandomAccessFile f = new RandomAccessFile(installation, "r");
byte[] bytes = new byte[(int)f.Length()];
f.ReadFully(bytes);
f.Close();
System.Text.UTF8Encoding en = new UTF8Encoding();
return(en.GetString(bytes));
}
/// <exception cref="System.IO.IOException"/>
public static bool CheckFileFormat(RandomAccessFile file)
{
if (file.Length() < FSImageFormatProtobuf.Loader.MinimumFileLength)
{
return(false);
}
byte[] magic = new byte[MagicHeader.Length];
file.ReadFully(magic);
if (!Arrays.Equals(MagicHeader, magic))
{
return(false);
}
return(true);
}
/// <summary>
/// Reads installation ID from file.
/// </summary>
/// <param name="installation"><see cref="File"/> to read ID from</param>
/// <returns>Application installation ID</returns>
private static string ReadInstallationFile(File installation)
{
var f = new RandomAccessFile(installation, "r");
var bytes = new byte[(int)f.Length()];
try
{
f.ReadFully(bytes);
}
finally
{
f.Close();
}
return(Encoding.UTF8.GetString(bytes));
}
/// <exception cref="System.IO.IOException"></exception>
protected internal override void OnEndThinPack()
{
byte[] tailHash = this.tailDigest.Digest();
byte[] buf = Buffer();
MessageDigest origDigest = Constants.NewMessageDigest();
MessageDigest tailDigest = Constants.NewMessageDigest();
MessageDigest packDigest = Constants.NewMessageDigest();
long origRemaining = origEnd;
@out.Seek(0);
@out.ReadFully(buf, 0, 12);
origDigest.Update(buf, 0, 12);
origRemaining -= 12;
NB.EncodeInt32(buf, 8, GetObjectCount());
@out.Seek(0);
@out.Write(buf, 0, 12);
packDigest.Update(buf, 0, 12);
for (; ;)
{
int n = @out.Read(buf);
if (n < 0)
{
break;
}
if (origRemaining != 0)
{
int origCnt = (int)Math.Min(n, origRemaining);
origDigest.Update(buf, 0, origCnt);
origRemaining -= origCnt;
if (origRemaining == 0)
{
tailDigest.Update(buf, origCnt, n - origCnt);
}
}
else
{
tailDigest.Update(buf, 0, n);
}
packDigest.Update(buf, 0, n);
}
if (!Arrays.Equals(origDigest.Digest(), origHash) || !Arrays.Equals(tailDigest.Digest
(), tailHash))
{
throw new IOException(JGitText.Get().packCorruptedWhileWritingToFilesystem);
}
packHash = packDigest.Digest();
}
