/// <summary>Parse the pack stream.</summary>
/// <remarks>Parse the pack stream.</remarks>
/// <param name="receiving">
/// receives progress feedback during the initial receiving
/// objects phase. If null,
/// <see cref="NGit.NullProgressMonitor">NGit.NullProgressMonitor</see>
/// will be
/// used.
/// </param>
/// <param name="resolving">receives progress feedback during the resolving objects phase.
/// </param>
/// <returns>
/// the pack lock, if one was requested by setting
/// <see cref="SetLockMessage(string)">SetLockMessage(string)</see>
/// .
/// </returns>
/// <exception cref="System.IO.IOException">the stream is malformed, or contains corrupt objects.
/// </exception>
public virtual PackLock Parse(ProgressMonitor receiving, ProgressMonitor resolving
)
{
if (receiving == null)
{
receiving = NullProgressMonitor.INSTANCE;
}
if (resolving == null)
{
resolving = NullProgressMonitor.INSTANCE;
}
if (receiving == resolving)
{
receiving.Start(2);
}
try
{
ReadPackHeader();
entries = new PackedObjectInfo[(int)objectCount];
baseById = new ObjectIdOwnerMap<PackParser.DeltaChain>();
baseByPos = new LongMap<PackParser.UnresolvedDelta>();
deferredCheckBlobs = new BlockList<PackedObjectInfo>();
receiving.BeginTask(JGitText.Get().receivingObjects, (int)objectCount);
try
{
for (int done = 0; done < objectCount; done++)
{
IndexOneObject();
receiving.Update(1);
if (receiving.IsCancelled())
{
throw new IOException(JGitText.Get().downloadCancelled);
}
}
ReadPackFooter();
EndInput();
}
finally
{
receiving.EndTask();
}
if (!deferredCheckBlobs.IsEmpty())
{
DoDeferredCheckBlobs();
}
if (deltaCount > 0)
{
if (resolving is BatchingProgressMonitor)
{
((BatchingProgressMonitor)resolving).SetDelayStart(1000, TimeUnit.MILLISECONDS);
}
resolving.BeginTask(JGitText.Get().resolvingDeltas, deltaCount);
ResolveDeltas(resolving);
if (entryCount < objectCount)
{
if (!IsAllowThin())
{
throw new IOException(MessageFormat.Format(JGitText.Get().packHasUnresolvedDeltas
, Sharpen.Extensions.ValueOf(objectCount - entryCount)));
}
ResolveDeltasWithExternalBases(resolving);
if (entryCount < objectCount)
{
throw new IOException(MessageFormat.Format(JGitText.Get().packHasUnresolvedDeltas
, Sharpen.Extensions.ValueOf(objectCount - entryCount)));
}
}
resolving.EndTask();
}
packDigest = null;
baseById = null;
baseByPos = null;
}
finally
{
try
{
if (readCurs != null)
{
readCurs.Release();
}
}
finally
{
readCurs = null;
}
try
{
inflater.Release();
}
finally
{
inflater = null;
}
}
return null;
}
/// <summary>Initialize a pack parser.</summary>
/// <remarks>Initialize a pack parser.</remarks>
/// <param name="odb">database the parser will write its objects into.</param>
/// <param name="src">the stream the parser will read.</param>
protected internal PackParser(ObjectDatabase odb, InputStream src)
{
objectDatabase = odb.NewCachedDatabase();
@in = src;
inflater = new PackParser.InflaterStream(this);
readCurs = objectDatabase.NewReader();
buf = new byte[BUFFER_SIZE];
tempBuffer = new byte[BUFFER_SIZE];
hdrBuf = new byte[64];
objectDigest = Constants.NewMessageDigest();
tempObjectId = new MutableObjectId();
packDigest = Constants.NewMessageDigest();
}
