beagled/ManageIndex.cs

   1 //
   2 // ManageIndex.cs
   3 //
   4 // Copyright (C) 2005 Novell, Inc.
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a copy
   9 // of this software and associated documentation files (the "Software"), to deal
  10 // in the Software without restriction, including without limitation the rights
  11 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12 // copies of the Software, and to permit persons to whom the Software is
  13 // furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in all
  16 // copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24 // SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.Collections;
  29 using System.IO;
  30 using System.Net;
  31
  32 using Beagle;
  33 using Beagle.Util;
  34 using Beagle.Daemon;
  35
  36 using Lucene.Net.Index;
  37 using Lucene.Net.Search;
  38 using Lucene.Net.Documents;
  39
  40 namespace Beagle.Daemon
  41 {
  42         class ManageIndex
  43         {
  44                 static private LuceneIndexingDriver driver;
  45
  46                 static void Main (string [] args)
  47                 {
  48                         if (args.Length < 2)
  49                                 PrintUsage ();
  50
  51                         string index_dir = (Path.IsPathRooted (args [0])) ? args [0] : Path.GetFullPath (args [0]);
  52
  53                         if (!Directory.Exists (index_dir)) {
  54                                 Console.WriteLine ("Could not find index: {0}", index_dir);
  55                                 Environment.Exit (1);
  56                         }
  57
  58                         driver = new LuceneIndexingDriver (index_dir, -1);
  59
  60                         switch (args [1]) {
  61 #if false
  62                         case "list":
  63                                 ExecuteList ();
  64                                 break;
  65                         case "remove":
  66                                 ExecuteRemove (args [2]);
  67                                 break;
  68 #endif
  69                         case "info":
  70                                 ExecuteInfo ();
  71                                 break;
  72
  73                         case "merge":
  74                                 ExecuteMerge (args [2]);
  75                                 break;
  76
  77                         case "optimize":
  78                                 ExecuteOptimize ();
  79                                 break;
  80                         default:
  81                                 Console.WriteLine ("Unknown command: {0}", args [1]);
  82                                 PrintUsage ();
  83                                 break;
  84                         }
  85                 }
  86
  87                 /////////////////////////////////////////////////////////
  88
  89                 static void PrintUsage ()
  90                 {
  91                         string usage =
  92                                 "beagle-manage-index: Low-level Lucene index management\n" +
  93                                 "Web page: http://www.gnome.org/projects/beagle\n" +
  94                                 "Copyright (C) 2004-2005 Novell, Inc.\n\n";
  95
  96                         usage +=
  97                                 "Usage: beagle-manage-index <index_path> <command> [OPTIONS]\n\n" +
  98                                 "Commands:\n" +
  99 #if false
 100                                 "  list\t\t\t\tList all entries in the index.\n" +
 101                                 "  remove <uri|tag>\t\tRemove entries corresponding to the criterias specified.\n" +
 102 #endif
 103                                 "  merge <index to merge>\tMerge another Lucene index into the target.\n" +
 104                                 "  info\t\t\t\tPrint basic index information.\n" +
 105                                 "  optimize\t\t\tOptimize index.\n";
 106
 107
 108                         Console.WriteLine (usage);
 109                         Environment.Exit (0);
 110                 }
 111
 112                 /////////////////////////////////////////////////////////
 113
 114 #if false
 115                 static void ExecuteList ()
 116
 117 {                       LuceneDriver driver = new LuceneDriver (index_dir, true);
 118
 119                         IndexReader reader = IndexReader.Open (driver.Store);
 120
 121                         for (int i = 0; i < reader.NumDocs (); i++) {
 122                                 if (reader.IsDeleted (i))
 123                                         continue;
 124                                 Console.WriteLine (reader.Document (i));
 125                         }
 126
 127                         reader.Close ();
 128                 }
 129
 130                 /////////////////////////////////////////////////////////
 131
 132                 static void ExecuteRemove (string arg)
 133                 {
 134                         LuceneDriver driver = new LuceneDriver (index_dir);
 135
 136                         if (arg.IndexOf ("://") != -1) {
 137                                 Uri uri = new Uri (arg);
 138                                 ICollection hits = driver.DoQueryByUri (uri);
 139
 140                                 if (hits == null || hits.Count == 0) {
 141                                         Console.WriteLine ("Uri not found in the index: {0}", uri);
 142                                         Environment.Exit (1);
 143                                 }
 144
 145                                 driver.Remove (uri);
 146                                 driver.Flush ();
 147
 148                                 Console.WriteLine ("Successfully removed Uri: {0}", uri);
 149                         } else {
 150                                 IndexSearcher searcher = new IndexSearcher (driver.Store);
 151                                 BooleanQuery query = new BooleanQuery ();
 152
 153                                 Term term = new Term ("prop:k:Tag", arg); // Argh
 154                                 TermQuery term_query = new TermQuery (term);
 155                                 query.Add (term_query, false, false);
 156
 157                                 Hits hits = searcher.Search (query);
 158                                 int n_hits = hits.Length ();
 159
 160                                 string uri;
 161
 162                                 for (int i = 0; i < n_hits; ++i) {
 163                                         Document doc = hits.Doc (i);
 164
 165                                         uri = doc.Get ("Uri");
 166
 167                                         if (uri == null)
 168                                                 continue;
 169
 170                                         driver.Remove (UriFu.UriStringToUri (uri));
 171                                 }
 172
 173                                 driver.Flush ();
 174
 175                                 Console.WriteLine ("Successfully removed {0} items with tag: {1}", n_hits, arg);
 176                         }
 177                 }
 178 #endif
 179                 /////////////////////////////////////////////////////////
 180
 181                 // Merge an external Beagle index to the current index. Merging will
 182                 // join the primary- and secondary lucene indexes and if available, the
 183                 // file attributes store.
 184
 185                 static void ExecuteMerge (string index_to_merge)
 186                 {
 187                         if (!Path.IsPathRooted (index_to_merge))
 188                                 index_to_merge = Path.GetFullPath (index_to_merge);
 189
 190                         if (!Directory.Exists (index_to_merge)) {
 191                                 Console.WriteLine ("Could not find index to merge: {0}", index_to_merge);
 192                                 Environment.Exit (1);
 193                         }
 194
 195                         LuceneQueryingDriver driver_to_merge = new LuceneQueryingDriver (index_to_merge, -1, false);
 196
 197                         Stopwatch watch = new Stopwatch ();
 198                         watch.Start ();
 199
 200                         // Merge the lucene index
 201
 202                         try {
 203                                 driver.Merge (driver_to_merge);
 204                         } catch (Exception e) {
 205                                 Console.WriteLine ("Index merging (lucene) failed: {0}", e);
 206                                 Environment.Exit (1);
 207                         }
 208
 209                         // Merge file attributes stores
 210
 211                         FileAttributesStore_Sqlite store;
 212
 213                         try {
 214                                 store = new FileAttributesStore_Sqlite (driver.TopDirectory, driver.Fingerprint);
 215                                 store.Merge (new FileAttributesStore_Sqlite (driver_to_merge.TopDirectory, driver_to_merge.Fingerprint));
 216                         } catch (Exception e) {
 217                                 Console.WriteLine ("Index merging (attributes store) failed: {0}", e);
 218                                 Environment.Exit (1);
 219                         }
 220
 221                         watch.Stop ();
 222
 223                         Console.WriteLine ("Successfully merged index {0} into {1} in {2}", index_to_merge, driver.TopDirectory, watch);
 224                 }
 225
 226                 /////////////////////////////////////////////////////////
 227
 228                 // Get the total number of entries from the index.
 229
 230                 static void ExecuteInfo ()
 231                 {
 232                         Console.WriteLine ("Total number of entries in index: {0}", driver.GetItemCount());
 233                 }
 234
 235                 /////////////////////////////////////////////////////////
 236
 237                 // Execute a lucene optimize-task on the index.
 238
 239                 static void ExecuteOptimize ()
 240                 {
 241                         Stopwatch watch = new Stopwatch ();
 242                         watch.Start ();
 243
 244                         driver.OptimizeNow ();
 245
 246                         watch.Stop ();
 247
 248                         Console.WriteLine ("Optimized index {0} in {1}", driver.TopDirectory, watch);
 249                 }
 250         }
 251 }