/// <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(); }