Lucene.Net.Index.IndexWriter.Merge C# (CSharp) Method

		internal void  Merge(MergePolicy.OneMerge merge)
		{
			
			bool success = false;
			
			try
			{
				try
				{
					try
					{
						MergeInit(merge);
						
						if (infoStream != null)
						{
							Message("now merge\n  merge=" + merge.SegString(directory) + "\n  merge=" + merge + "\n  index=" + SegString());
						}
						
						MergeMiddle(merge);
						MergeSuccess(merge);
						success = true;
					}
					catch (System.Exception t)
					{
						HandleMergeException(t, merge);
					}
				}
				finally
				{
					lock (this)
					{
						MergeFinish(merge);
						
						if (!success)
						{
							if (infoStream != null)
								Message("hit exception during merge");
							if (merge.info != null && !segmentInfos.Contains(merge.info))
								deleter.Refresh(merge.info.name);
						}
						
						// This merge (and, generally, any change to the
						// segments) may now enable new merges, so we call
						// merge policy & update pending merges.
						if (success && !merge.IsAborted() && !closed && !closing)
							UpdatePendingMerges(merge.maxNumSegmentsOptimize, merge.optimize);
					}
				}
			}
			catch (System.OutOfMemoryException oom)
			{
				HandleOOM(oom, "merge");
			}
		}
		

 public override void Merge(IndexWriter writer, MergeTrigger trigger, bool newMergesFound)
 {
     UninterruptableMonitor.Enter(this);
     try
     {
         while (true)
         {
             MergePolicy.OneMerge merge = writer.NextMerge();
             if (merge == null)
             {
                 break;
             }
             for (int i = 0; i < merge.Segments.Count; i++)
             {
                 if (Debugging.AssertsEnabled)
                 {
                     Debugging.Assert(merge.Segments[i].Info.DocCount < 20);
                 }
             }
             writer.Merge(merge);
         }
     }
     finally
     {
         UninterruptableMonitor.Exit(this);
     }
 }