public virtual void TestWhole_SmallObject()
{
int type = Constants.OBJ_BLOB;
byte[] data = GetRng().NextBytes(300);
RevBlob id = tr.Blob(data);
tr.Branch("master").Commit().Add("A", id).Create();
tr.PackAndPrune();
NUnit.Framework.Assert.IsTrue(wc.Has(id), "has blob");
ObjectLoader ol = wc.Open(id);
NUnit.Framework.Assert.IsNotNull(ol, "created loader");
NUnit.Framework.Assert.AreEqual(type, ol.GetType());
NUnit.Framework.Assert.AreEqual(data.Length, ol.GetSize());
NUnit.Framework.Assert.IsFalse(ol.IsLarge(), "is not large");
NUnit.Framework.Assert.IsTrue(Arrays.Equals(data, ol.GetCachedBytes()), "same content"
);
ObjectStream @in = ol.OpenStream();
NUnit.Framework.Assert.IsNotNull(@in, "have stream");
NUnit.Framework.Assert.AreEqual(type, @in.GetType());
NUnit.Framework.Assert.AreEqual(data.Length, @in.GetSize());
byte[] data2 = new byte[data.Length];
IOUtil.ReadFully(@in, data2, 0, data.Length);
NUnit.Framework.Assert.IsTrue(Arrays.Equals(data2, data), "same content");
NUnit.Framework.Assert.AreEqual(-1, @in.Read(), "stream at EOF");
@in.Close();
}
/// <exception cref="NGit.Errors.MissingObjectException"></exception>
/// <exception cref="System.IO.IOException"></exception>
public override ObjectStream OpenStream()
{
WindowCursor wc = new WindowCursor(db);
InputStream @in;
try
{
@in = new PackInputStream(pack, objectOffset + headerLength, wc);
}
catch (IOException)
{
// If the pack file cannot be pinned into the cursor, it
// probably was repacked recently. Go find the object
// again and open the stream from that location instead.
//
return(wc.Open(GetObjectId(), type).OpenStream());
}
@in = new BufferedInputStream(new InflaterInputStream(@in, wc.Inflater(), 8192),
8192);
//
//
//
//
//
return(new ObjectStream.Filter(type, size, @in));
}
public override int GetType()
{
if (type == Constants.OBJ_BAD)
{
WindowCursor wc = new WindowCursor(db);
try
{
type = pack.GetObjectType(wc, objectOffset);
}
catch (IOException)
{
// If the pack file cannot be pinned into the cursor, it
// probably was repacked recently. Go find the object
// again and get the type from that location instead.
//
try
{
type = wc.Open(GetObjectId()).GetType();
}
catch (IOException)
{
}
}
finally
{
// "He's dead, Jim." We just can't discover the type
// and the interface isn't supposed to be lazy here.
// Report an invalid type code instead, callers will
// wind up bailing out with an error at some point.
wc.Release();
}
}
return(type);
}
public override long GetSize()
{
if (size == SIZE_UNKNOWN)
{
WindowCursor wc = new WindowCursor(db);
try
{
byte[] b = pack.GetDeltaHeader(wc, objectOffset + headerLength);
size = BinaryDelta.GetResultSize(b);
}
catch (SharpZipBaseException)
{
}
catch (IOException)
{
// The zlib stream for the delta is corrupt. We probably
// cannot access the object. Keep the size negative and
// report that bogus result to the caller.
// If the pack file cannot be pinned into the cursor, it
// probably was repacked recently. Go find the object
// again and get the size from that location instead.
//
try
{
size = wc.Open(GetObjectId()).GetSize();
}
catch (IOException)
{
}
}
finally
{
// "He's dead, Jim." We just can't discover the size
// and the interface isn't supposed to be lazy here.
// Report an invalid type code instead, callers will
// wind up bailing out with an error at some point.
wc.Release();
}
}
return(size);
}
/// <exception cref="NGit.Errors.MissingObjectException"></exception>
/// <exception cref="System.IO.IOException"></exception>
/// <exception cref="NGit.Errors.IncorrectObjectTypeException"></exception>
private InputStream Open(WindowCursor wc)
{
InputStream delta;
try
{
delta = new PackInputStream(pack, objectOffset + headerLength, wc);
}
catch (IOException)
{
// If the pack file cannot be pinned into the cursor, it
// probably was repacked recently. Go find the object
// again and open the stream from that location instead.
//
return(wc.Open(GetObjectId()).OpenStream());
}
delta = new InflaterInputStream(delta);
ObjectLoader @base = pack.Load(wc, baseOffset);
DeltaStream ds = new _DeltaStream_223(@base, wc, delta);
// This code path should never be used as DeltaStream
// is supposed to open the stream first, which would
// initialize the size for us directly from the stream.
if (type == Constants.OBJ_BAD)
{
if (!(@base is NGit.Storage.File.LargePackedDeltaObject))
{
type = @base.GetType();
}
}
if (size == SIZE_UNKNOWN)
{
size = ds.GetSize();
}
return(ds);
}
public override int GetType()
{
if (type == Constants.OBJ_BAD)
{
WindowCursor wc = new WindowCursor(db);
try
{
type = pack.GetObjectType(wc, objectOffset);
}
catch (IOException)
{
// If the pack file cannot be pinned into the cursor, it
// probably was repacked recently. Go find the object
// again and get the type from that location instead.
//
try
{
type = wc.Open(GetObjectId()).GetType();
}
catch (IOException)
{
}
}
finally
{
// "He's dead, Jim." We just can't discover the type
// and the interface isn't supposed to be lazy here.
// Report an invalid type code instead, callers will
// wind up bailing out with an error at some point.
wc.Release();
}
}
return type;
}
/// <exception cref="NGit.Errors.MissingObjectException"></exception>
/// <exception cref="System.IO.IOException"></exception>
/// <exception cref="NGit.Errors.IncorrectObjectTypeException"></exception>
private InputStream Open(WindowCursor wc)
{
InputStream delta;
try
{
delta = new PackInputStream(pack, objectOffset + headerLength, wc);
}
catch (IOException)
{
// If the pack file cannot be pinned into the cursor, it
// probably was repacked recently. Go find the object
// again and open the stream from that location instead.
//
return wc.Open(GetObjectId()).OpenStream();
}
delta = new InflaterInputStream(delta);
ObjectLoader @base = pack.Load(wc, baseOffset);
DeltaStream ds = new _DeltaStream_223(@base, wc, delta);
// This code path should never be used as DeltaStream
// is supposed to open the stream first, which would
// initialize the size for us directly from the stream.
if (type == Constants.OBJ_BAD)
{
if (!(@base is NGit.Storage.File.LargePackedDeltaObject))
{
type = @base.GetType();
}
}
if (size == SIZE_UNKNOWN)
{
size = ds.GetSize();
}
return ds;
}
public override long GetSize()
{
if (size == SIZE_UNKNOWN)
{
WindowCursor wc = new WindowCursor(db);
try
{
byte[] b = pack.GetDeltaHeader(wc, objectOffset + headerLength);
size = BinaryDelta.GetResultSize(b);
}
catch (SharpZipBaseException)
{
}
catch (IOException)
{
// The zlib stream for the delta is corrupt. We probably
// cannot access the object. Keep the size negative and
// report that bogus result to the caller.
// If the pack file cannot be pinned into the cursor, it
// probably was repacked recently. Go find the object
// again and get the size from that location instead.
//
try
{
size = wc.Open(GetObjectId()).GetSize();
}
catch (IOException)
{
}
}
finally
{
// "He's dead, Jim." We just can't discover the size
// and the interface isn't supposed to be lazy here.
// Report an invalid type code instead, callers will
// wind up bailing out with an error at some point.
wc.Release();
}
}
return size;
}
/// <exception cref="NGit.Errors.MissingObjectException"></exception>
/// <exception cref="System.IO.IOException"></exception>
public override ObjectStream OpenStream()
{
WindowCursor wc = new WindowCursor(db);
InputStream @in;
try
{
@in = new PackInputStream(pack, objectOffset + headerLength, wc);
}
catch (IOException)
{
// If the pack file cannot be pinned into the cursor, it
// probably was repacked recently. Go find the object
// again and open the stream from that location instead.
//
return wc.Open(GetObjectId(), type).OpenStream();
}
@in = new BufferedInputStream(new InflaterInputStream(@in, wc.Inflater(), 8192),
8192);
//
//
//
//
//
return new ObjectStream.Filter(type, size, @in);
}