C# Lucene.Net.Documents.Document.ToString方法代码示例

		public virtual void  TestKnownSetOfDocuments()
		{
			System.String[] termArray = new System.String[]{"eating", "chocolate", "in", "a", "computer", "lab", "grows", "old", "colored", "with", "an"};
			System.String test1 = "eating chocolate in a computer lab"; //6 terms
			System.String test2 = "computer in a computer lab"; //5 terms
			System.String test3 = "a chocolate lab grows old"; //5 terms
			System.String test4 = "eating chocolate with a chocolate lab in an old chocolate colored computer lab"; //13 terms
			System.Collections.IDictionary test4Map = new System.Collections.Hashtable();
			test4Map["chocolate"] = 3;
			test4Map["lab"] = 2;
			test4Map["eating"] = 1;
			test4Map["computer"] = 1;
			test4Map["with"] = 1;
			test4Map["a"] = 1;
			test4Map["colored"] = 1;
			test4Map["in"] = 1;
			test4Map["an"] = 1;
			test4Map["computer"] = 1;
			test4Map["old"] = 1;
			
			Document testDoc1 = new Document();
			SetupDoc(testDoc1, test1);
			Document testDoc2 = new Document();
			SetupDoc(testDoc2, test2);
			Document testDoc3 = new Document();
			SetupDoc(testDoc3, test3);
			Document testDoc4 = new Document();
			SetupDoc(testDoc4, test4);
			
			Directory dir = new RAMDirectory();
			
			try
			{
				IndexWriter writer = new IndexWriter(dir, new SimpleAnalyzer(), true);
				Assert.IsTrue(writer != null);
				writer.AddDocument(testDoc1);
				writer.AddDocument(testDoc2);
				writer.AddDocument(testDoc3);
				writer.AddDocument(testDoc4);
				writer.Close();
				IndexSearcher knownSearcher = new IndexSearcher(dir);
				TermEnum termEnum = knownSearcher.reader.Terms();
				TermDocs termDocs = knownSearcher.reader.TermDocs();
				//System.out.println("Terms: " + termEnum.size() + " Orig Len: " + termArray.length);
				
				Similarity sim = knownSearcher.GetSimilarity();
				while (termEnum.Next() == true)
				{
					Term term = termEnum.Term();
					//System.out.println("Term: " + term);
					termDocs.Seek(term);
					while (termDocs.Next())
					{
						int docId = termDocs.Doc();
						int freq = termDocs.Freq();
						//System.out.println("Doc Id: " + docId + " freq " + freq);
						TermFreqVector vector = knownSearcher.reader.GetTermFreqVector(docId, "Field");
						float tf = sim.Tf(freq);
						float idf = sim.Idf(term, knownSearcher);
						//float qNorm = sim.queryNorm()
						//This is fine since we don't have stop words
						float lNorm = sim.LengthNorm("Field", vector.GetTerms().Length);
						//float coord = sim.coord()
						//System.out.println("TF: " + tf + " IDF: " + idf + " LenNorm: " + lNorm);
						Assert.IsTrue(vector != null);
						System.String[] vTerms = vector.GetTerms();
						int[] freqs = vector.GetTermFrequencies();
						for (int i = 0; i < vTerms.Length; i++)
						{
							if (term.Text().Equals(vTerms[i]) == true)
							{
								Assert.IsTrue(freqs[i] == freq);
							}
						}
					}
					//System.out.println("--------");
				}
				Query query = new TermQuery(new Term("Field", "chocolate"));
				Hits hits = knownSearcher.Search(query);
				//doc 3 should be the first hit b/c it is the shortest match
				Assert.IsTrue(hits.Length() == 3);
				float score = hits.Score(0);
				/*System.out.println("Hit 0: " + hits.id(0) + " Score: " + hits.score(0) + " String: " + hits.doc(0).toString());
				System.out.println("Explain: " + knownSearcher.explain(query, hits.id(0)));
				System.out.println("Hit 1: " + hits.id(1) + " Score: " + hits.score(1) + " String: " + hits.doc(1).toString());
				System.out.println("Explain: " + knownSearcher.explain(query, hits.id(1)));
				System.out.println("Hit 2: " + hits.id(2) + " Score: " + hits.score(2) + " String: " +  hits.doc(2).toString());
				System.out.println("Explain: " + knownSearcher.explain(query, hits.id(2)));*/
				Assert.IsTrue(testDoc3.ToString().Equals(hits.Doc(0).ToString()));
				Assert.IsTrue(testDoc4.ToString().Equals(hits.Doc(1).ToString()));
				Assert.IsTrue(testDoc1.ToString().Equals(hits.Doc(2).ToString()));
				TermFreqVector vector2 = knownSearcher.reader.GetTermFreqVector(hits.Id(1), "Field");
				Assert.IsTrue(vector2 != null);
				//System.out.println("Vector: " + vector);
				System.String[] terms = vector2.GetTerms();
				int[] freqs2 = vector2.GetTermFrequencies();
				Assert.IsTrue(terms != null && terms.Length == 10);
				for (int i = 0; i < terms.Length; i++)
				{
                    System.String term = terms[i];
//.........这里部分代码省略.........