Lucene.Net.Search.MultiSearcher.CreateWeight C# (CSharp) Method

		public /*protected internal*/ override Weight CreateWeight(Query original)
		{
			// step 1
			Query rewrittenQuery = Rewrite(original);
			
			// step 2
		    ISet<Term> terms = Lucene.Net.Support.Compatibility.SetFactory.GetSet<Term>();
			rewrittenQuery.ExtractTerms(terms);
			
			// step3
		    Term[] allTermsArray = terms.ToArray();
            int[] aggregatedDfs = new int[terms.Count];
			for (int i = 0; i < searchables.Length; i++)
			{
				int[] dfs = searchables[i].DocFreqs(allTermsArray);
				for (int j = 0; j < aggregatedDfs.Length; j++)
				{
					aggregatedDfs[j] += dfs[j];
				}
			}
			
			var dfMap = new Dictionary<Term, int>();
			for (int i = 0; i < allTermsArray.Length; i++)
			{
				dfMap[allTermsArray[i]] = aggregatedDfs[i];
			}
			
			// step4
			int numDocs = MaxDoc;
			CachedDfSource cacheSim = new CachedDfSource(dfMap, numDocs, Similarity);
			
			return rewrittenQuery.Weight(cacheSim);
		}