public override int DocFreq(Term t) { TermInfo ti = tis.Get(t); if (ti != null) { return(ti.docFreq); } else { return(0); } }
// FIXME: OG: remove hard-coded file names public static void Test() { System.IO.FileInfo file = new System.IO.FileInfo("words.txt"); System.Console.Out.WriteLine(" reading word file containing " + file.Length + " bytes"); System.DateTime start = System.DateTime.Now; System.Collections.ArrayList keys = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10)); System.IO.FileStream ws = new System.IO.FileStream(file.FullName, System.IO.FileMode.Open, System.IO.FileAccess.Read); System.IO.StreamReader wr = new System.IO.StreamReader(new System.IO.StreamReader(ws, System.Text.Encoding.Default).BaseStream, new System.IO.StreamReader(ws, System.Text.Encoding.Default).CurrentEncoding); for (System.String key = wr.ReadLine(); key != null; key = wr.ReadLine()) { keys.Add(new Term("word", key)); } wr.Close(); System.DateTime end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to read " + keys.Count + " words"); start = System.DateTime.Now; System.Random gen = new System.Random((System.Int32) 1251971); long fp = (gen.Next() & 0xF) + 1; long pp = (gen.Next() & 0xF) + 1; int[] docFreqs = new int[keys.Count]; long[] freqPointers = new long[keys.Count]; long[] proxPointers = new long[keys.Count]; for (int i = 0; i < keys.Count; i++) { docFreqs[i] = (gen.Next() & 0xF) + 1; freqPointers[i] = fp; proxPointers[i] = pp; fp += (gen.Next() & 0xF) + 1; ; pp += (gen.Next() & 0xF) + 1; ; } end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to generate values"); start = System.DateTime.Now; Directory store = FSDirectory.GetDirectory("test.store", true); FieldInfos fis = new FieldInfos(); TermInfosWriter writer = new TermInfosWriter(store, "words", fis); fis.Add("word", false); for (int i = 0; i < keys.Count; i++) { writer.Add((Term)keys[i], new TermInfo(docFreqs[i], freqPointers[i], proxPointers[i])); } writer.Close(); end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to write table"); System.Console.Out.WriteLine(" table occupies " + store.FileLength("words.tis") + " bytes"); start = System.DateTime.Now; TermInfosReader reader = new TermInfosReader(store, "words", fis); end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to open table"); start = System.DateTime.Now; SegmentTermEnum enumerator = reader.Terms(); for (int i = 0; i < keys.Count; i++) { enumerator.Next(); Term key = (Term)keys[i]; if (!key.Equals(enumerator.Term())) { throw new System.Exception("wrong term: " + enumerator.Term() + ", expected: " + key + " at " + i); } TermInfo ti = enumerator.TermInfo(); if (ti.docFreq != docFreqs[i]) { throw new System.Exception("wrong value: " + System.Convert.ToString(ti.docFreq, 16) + ", expected: " + System.Convert.ToString(docFreqs[i], 16) + " at " + i); } if (ti.freqPointer != freqPointers[i]) { throw new System.Exception("wrong value: " + System.Convert.ToString(ti.freqPointer, 16) + ", expected: " + System.Convert.ToString(freqPointers[i], 16) + " at " + i); } if (ti.proxPointer != proxPointers[i]) { throw new System.Exception("wrong value: " + System.Convert.ToString(ti.proxPointer, 16) + ", expected: " + System.Convert.ToString(proxPointers[i], 16) + " at " + i); } } end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to iterate over " + keys.Count + " words"); start = System.DateTime.Now; for (int i = 0; i < keys.Count; i++) { Term key = (Term)keys[i]; TermInfo ti = reader.Get(key); if (ti.docFreq != docFreqs[i]) { throw new System.Exception("wrong value: " + System.Convert.ToString(ti.docFreq, 16) + ", expected: " + System.Convert.ToString(docFreqs[i], 16) + " at " + i); } if (ti.freqPointer != freqPointers[i]) { throw new System.Exception("wrong value: " + System.Convert.ToString(ti.freqPointer, 16) + ", expected: " + System.Convert.ToString(freqPointers[i], 16) + " at " + i); } if (ti.proxPointer != proxPointers[i]) { throw new System.Exception("wrong value: " + System.Convert.ToString(ti.proxPointer, 16) + ", expected: " + System.Convert.ToString(proxPointers[i], 16) + " at " + i); } } end = System.DateTime.Now; System.Console.Out.Write((end.Ticks - start.Ticks) / (float)keys.Count); System.Console.Out.WriteLine(" average milliseconds per lookup"); TermEnum e = reader.Terms(new Term("word", "azz")); System.Console.Out.WriteLine("Word after azz is " + e.Term().text); reader.Close(); store.Close(); }
// FIXME: OG: remove hard-coded file names public static void Test() { System.IO.FileInfo file = new System.IO.FileInfo("words.txt"); System.Console.Out.WriteLine(" reading word file containing " + file.Length + " bytes"); System.DateTime start = System.DateTime.Now; System.Collections.ArrayList keys = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10)); System.IO.FileStream ws = new System.IO.FileStream(file.FullName, System.IO.FileMode.Open, System.IO.FileAccess.Read); System.IO.StreamReader wr = new System.IO.StreamReader(new System.IO.StreamReader(ws, System.Text.Encoding.Default).BaseStream, new System.IO.StreamReader(ws, System.Text.Encoding.Default).CurrentEncoding); for (System.String key = wr.ReadLine(); key != null; key = wr.ReadLine()) keys.Add(new Term("word", key)); wr.Close(); System.DateTime end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to read " + keys.Count + " words"); start = System.DateTime.Now; System.Random gen = new System.Random((System.Int32) 1251971); long fp = (gen.Next() & 0xF) + 1; long pp = (gen.Next() & 0xF) + 1; int[] docFreqs = new int[keys.Count]; long[] freqPointers = new long[keys.Count]; long[] proxPointers = new long[keys.Count]; for (int i = 0; i < keys.Count; i++) { docFreqs[i] = (gen.Next() & 0xF) + 1; freqPointers[i] = fp; proxPointers[i] = pp; fp += (gen.Next() & 0xF) + 1; ; pp += (gen.Next() & 0xF) + 1; ; } end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to generate values"); start = System.DateTime.Now; Directory store = FSDirectory.GetDirectory("test.store", true); FieldInfos fis = new FieldInfos(); TermInfosWriter writer = new TermInfosWriter(store, "words", fis); fis.Add("word", false); for (int i = 0; i < keys.Count; i++) writer.Add((Term) keys[i], new TermInfo(docFreqs[i], freqPointers[i], proxPointers[i])); writer.Close(); end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to write table"); System.Console.Out.WriteLine(" table occupies " + store.FileLength("words.tis") + " bytes"); start = System.DateTime.Now; TermInfosReader reader = new TermInfosReader(store, "words", fis); end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to open table"); start = System.DateTime.Now; SegmentTermEnum enumerator = reader.Terms(); for (int i = 0; i < keys.Count; i++) { enumerator.Next(); Term key = (Term) keys[i]; if (!key.Equals(enumerator.Term())) { throw new System.Exception("wrong term: " + enumerator.Term() + ", expected: " + key + " at " + i); } TermInfo ti = enumerator.TermInfo(); if (ti.docFreq != docFreqs[i]) throw new System.Exception("wrong value: " + System.Convert.ToString(ti.docFreq, 16) + ", expected: " + System.Convert.ToString(docFreqs[i], 16) + " at " + i); if (ti.freqPointer != freqPointers[i]) throw new System.Exception("wrong value: " + System.Convert.ToString(ti.freqPointer, 16) + ", expected: " + System.Convert.ToString(freqPointers[i], 16) + " at " + i); if (ti.proxPointer != proxPointers[i]) throw new System.Exception("wrong value: " + System.Convert.ToString(ti.proxPointer, 16) + ", expected: " + System.Convert.ToString(proxPointers[i], 16) + " at " + i); } end = System.DateTime.Now; System.Console.Out.Write(end.Ticks - start.Ticks); System.Console.Out.WriteLine(" milliseconds to iterate over " + keys.Count + " words"); start = System.DateTime.Now; for (int i = 0; i < keys.Count; i++) { Term key = (Term) keys[i]; TermInfo ti = reader.Get(key); if (ti.docFreq != docFreqs[i]) throw new System.Exception("wrong value: " + System.Convert.ToString(ti.docFreq, 16) + ", expected: " + System.Convert.ToString(docFreqs[i], 16) + " at " + i); if (ti.freqPointer != freqPointers[i]) throw new System.Exception("wrong value: " + System.Convert.ToString(ti.freqPointer, 16) + ", expected: " + System.Convert.ToString(freqPointers[i], 16) + " at " + i); if (ti.proxPointer != proxPointers[i]) throw new System.Exception("wrong value: " + System.Convert.ToString(ti.proxPointer, 16) + ", expected: " + System.Convert.ToString(proxPointers[i], 16) + " at " + i); } end = System.DateTime.Now; System.Console.Out.Write((end.Ticks - start.Ticks) / (float) keys.Count); System.Console.Out.WriteLine(" average milliseconds per lookup"); TermEnum e = reader.Terms(new Term("word", "azz")); System.Console.Out.WriteLine("Word after azz is " + e.Term().text); reader.Close(); store.Close(); }