Lucene.Net.Index.CheckIndex.TestTermIndex C# (CSharp) Method

		private Status.TermIndexStatus TestTermIndex(SegmentInfo info, SegmentReader reader)
		{
			var status = new Status.TermIndexStatus();
			
			try
			{
				if (infoStream != null)
				{
					infoStream.Write("    test: terms, freq, prox...");
				}
				
				TermEnum termEnum = reader.Terms();
				TermPositions termPositions = reader.TermPositions();
				
				// Used only to count up # deleted docs for this term
				var myTermDocs = new MySegmentTermDocs(reader);
				
				int maxDoc = reader.MaxDoc;
				
				while (termEnum.Next())
				{
					status.termCount++;
					Term term = termEnum.Term;
					int docFreq = termEnum.DocFreq();
					termPositions.Seek(term);
					int lastDoc = - 1;
					int freq0 = 0;
					status.totFreq += docFreq;
					while (termPositions.Next())
					{
						freq0++;
						int doc = termPositions.Doc;
						int freq = termPositions.Freq;
						if (doc <= lastDoc)
						{
							throw new System.SystemException("term " + term + ": doc " + doc + " <= lastDoc " + lastDoc);
						}
						if (doc >= maxDoc)
						{
							throw new System.SystemException("term " + term + ": doc " + doc + " >= maxDoc " + maxDoc);
						}
						
						lastDoc = doc;
						if (freq <= 0)
						{
							throw new System.SystemException("term " + term + ": doc " + doc + ": freq " + freq + " is out of bounds");
						}
						
						int lastPos = - 1;
						status.totPos += freq;
						for (int j = 0; j < freq; j++)
						{
							int pos = termPositions.NextPosition();
							if (pos < - 1)
							{
								throw new System.SystemException("term " + term + ": doc " + doc + ": pos " + pos + " is out of bounds");
							}
							if (pos < lastPos)
							{
								throw new System.SystemException("term " + term + ": doc " + doc + ": pos " + pos + " < lastPos " + lastPos);
							}
						    lastPos = pos;
						}
					}
					
					// Now count how many deleted docs occurred in
					// this term:
					int delCount;
					if (reader.HasDeletions)
					{
						myTermDocs.Seek(term);
						while (myTermDocs.Next())
						{
						}
						delCount = myTermDocs.delCount;
					}
					else
					{
						delCount = 0;
					}
					
					if (freq0 + delCount != docFreq)
					{
						throw new System.SystemException("term " + term + " docFreq=" + docFreq + " != num docs seen " + freq0 + " + num docs deleted " + delCount);
					}
				}
				
				Msg("OK [" + status.termCount + " terms; " + status.totFreq + " terms/docs pairs; " + status.totPos + " tokens]");
			}
			catch (System.Exception e)
			{
				Msg("ERROR [" + System.Convert.ToString(e.Message) + "]");
				status.error = e;
				if (infoStream != null)
				{
					infoStream.WriteLine(e.StackTrace);
				}
			}
			
			return status;
		}