tools/Info.cs

   1 //
   2 // Info.cs
   3 //
   4 // Copyright (C) 2005 Novell, Inc.
   5 // Copyright (C) 2006 Debajyoti Bera <dbera.web@gmail.com>
   6 //
   7
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining a copy
  10 // of this software and associated documentation files (the "Software"), to deal
  11 // in the Software without restriction, including without limitation the rights
  12 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13 // copies of the Software, and to permit persons to whom the Software is
  14 // furnished to do so, subject to the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be included in all
  17 // copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  25 // SOFTWARE.
  26 //
  27
  28 using System;
  29 using System.IO;
  30 using System.Text;
  31 using System.Reflection;
  32 using System.Collections;
  33
  34 using Beagle;
  35 using Beagle.Daemon;
  36 using Beagle.Util;
  37
  38 class InfoTool {
  39
  40         public static void PrintUsageAndExit ()
  41         {
  42                 string usage =
  43                         "beagle-info: Statistics from the Beagle daemon.\n" +
  44                         "Web page: http://www.gnome.org/projects/beagle\n" +
  45                         "Copyright (C) 2004-2006 Novell, Inc.\n\n";
  46                 usage +=
  47                         "Usage: beagle-info <OPTIONS>\n\n" +
  48                         "Options:\n" +
  49                         "  --daemon-version\t\tPrint the version of the running daemon.\n" +
  50                         "  --status\t\t\tDisplay status of the running daemon.\n" +
  51                         "  --index-info\t\t\tDisplay statistics of the Beagle indexes.\n" +
  52                         "  --is-indexing\t\t\tDisplay whether the indexer is currently active.\n" +
  53                         "  --all-info\t\t\tAll of the above information.\n" +
  54                         "  --list-backends\t\tList the currently available backends.\n" +
  55                         "  --list-filters\t\tList the currently available filters.\n" +
  56                         "  --list-static-indexes\t\tList the available static indexes.\n" +
  57                         "  --help\t\t\tPrint this usage message.\n";
  58
  59                 Console.WriteLine (usage);
  60
  61                 System.Environment.Exit (0);
  62         }
  63
  64         static int Main (string[] args)
  65         {
  66                 if (args.Length == 0 || Array.IndexOf (args, "--help") > -1)
  67                         PrintUsageAndExit ();
  68
  69                 if (Array.IndexOf (args, "--list-filters") > -1)
  70                         PrintFilterInformation ();
  71                 else if (Array.IndexOf (args, "--list-backends") > -1)
  72                         PrintBackendInformation ();
  73                 else if (Array.IndexOf (args, "--list-static-indexes") > -1)
  74                         PrintStaticIndexInformation ();
  75                 else
  76                         return PrintDaemonInformation (args);
  77
  78                 return 0;
  79         }
  80
  81         private static int PrintDaemonInformation (string[] args)
  82         {
  83                 DaemonInformationRequest request = new DaemonInformationRequest ();
  84                 DaemonInformationResponse response;
  85
  86                 bool get_version = false;
  87                 bool get_sched_info = false;
  88                 bool get_index_status = false;
  89                 bool get_is_indexing = false;
  90
  91                 get_version = (Array.IndexOf (args, "--daemon-version") > -1);
  92                 get_sched_info = (Array.IndexOf (args, "--status") > -1);
  93                 get_index_status = (Array.IndexOf (args, "--index-info") > -1);
  94                 get_is_indexing = (Array.IndexOf (args, "--is-indexing") > -1);
  95
  96                 if (Array.IndexOf (args, "--all-info") > -1)
  97                         get_version = get_sched_info = get_index_status = get_is_indexing = true;
  98
  99                 try {
 100                         response = (DaemonInformationResponse) request.Send ();
 101                 } catch (Beagle.ResponseMessageException) {
 102                         Console.WriteLine ("Could not connect to the daemon.");
 103                         return 1;
 104                 }
 105
 106                 if (get_version)
 107                         Console.WriteLine ("Daemon version: {0}", response.Version);
 108
 109                 if (get_sched_info)
 110                         Console.Write (response.HumanReadableStatus);
 111
 112                 if (get_index_status) {
 113                         Console.WriteLine ("Index information:");
 114                         Console.WriteLine (response.IndexInformation);
 115                 }
 116
 117                 if (get_is_indexing)
 118                         Console.WriteLine ("Daemon indexing: {0}", response.IsIndexing);
 119
 120                 return 0;
 121         }
 122
 123         private static void PrintFilterInformation ()
 124         {
 125                 ReflectionFu.ScanEnvironmentForAssemblies ("BEAGLE_FILTER_PATH", PathFinder.FilterDir, PrintFilterDetails);
 126         }
 127
 128         static void PrintFilterDetails (Assembly assembly)
 129         {
 130                 StringBuilder sb = new StringBuilder ();
 131                 foreach (Type t in ReflectionFu.GetTypesFromAssemblyAttribute (assembly, typeof (FilterTypesAttribute))) {
 132                         Filter filter = null;
 133
 134                         try {
 135                                 filter = (Filter) Activator.CreateInstance (t);
 136                         } catch (Exception ex) {
 137                                 Logger.Log.Error (ex, "Caught exception while instantiating {0}", t);
 138                         }
 139
 140                         if (filter == null)
 141                                 continue;
 142
 143                         string name;
 144
 145                         if (t.FullName.StartsWith (t.Namespace))
 146                                 name = t.FullName.Substring (t.Namespace.Length + 1);
 147                         else
 148                                 name = t.FullName;
 149
 150                         sb.Length = 0;
 151                         sb.Append (name + " - Version " + filter.Version + " (" + assembly.Location + ")\n");
 152                         bool has_filter = false;
 153
 154                         foreach (FilterFlavor flavor in filter.SupportedFlavors) {
 155                                 if (flavor.MimeType != null && (! flavor.MimeType.StartsWith ("beagle"))) {
 156                                         sb.Append ("  - " + flavor.MimeType + "\n");
 157                                         has_filter = true;
 158                                 }
 159                                 if (flavor.Extension != null) {
 160                                         sb.Append ("  - *" + flavor.Extension + "\n");
 161                                         has_filter = true;
 162                                 }
 163                         }
 164
 165                         if (has_filter)
 166                                 Console.WriteLine (sb.ToString ());
 167                 }
 168         }
 169
 170         private static void PrintBackendInformation ()
 171         {
 172                 ArrayList assemblies = ReflectionFu.ScanEnvironmentForAssemblies ("BEAGLE_BACKEND_PATH", PathFinder.BackendDir);
 173
 174                 // Add BeagleDaemonLib if it hasn't already been added.
 175                 bool found_daemon_lib = false;
 176                 foreach (Assembly assembly in assemblies) {
 177                         if (assembly.GetName ().Name == "BeagleDaemonLib") {
 178                                 found_daemon_lib = true;
 179                                 break;
 180                         }
 181                 }
 182
 183                 if (!found_daemon_lib) {
 184                         try {
 185                                 assemblies.Add (Assembly.LoadFrom (Path.Combine (PathFinder.PkgLibDir, "BeagleDaemonLib.dll")));
 186                         } catch (FileNotFoundException) {
 187                                 Console.WriteLine ("WARNING: Could not find backend list.");
 188                                 Environment.Exit (1);
 189                         }
 190                 }
 191
 192                 foreach (Assembly assembly in assemblies) {
 193                         foreach (Type type in ReflectionFu.GetTypesFromAssemblyAttribute (assembly, typeof (IQueryableTypesAttribute))) {
 194                                 foreach (Beagle.Daemon.QueryableFlavor flavor in ReflectionFu.ScanTypeForAttribute (type, typeof (Beagle.Daemon.QueryableFlavor))) {
 195                                         Console.WriteLine ("{0,-20} (" + assembly.Location + ")", flavor.Name);
 196                                 }
 197                         }
 198                 }
 199         }
 200
 201         private static void PrintStaticIndexInformation ()
 202         {
 203                 try {
 204                         foreach (DirectoryInfo index_dir in new DirectoryInfo (PathFinder.SystemIndexesDir).GetDirectories ())
 205                                 Console.WriteLine ("[System index] " + index_dir.Name + " (" + index_dir.FullName + ")");
 206                 } catch (DirectoryNotFoundException) { }
 207
 208                 foreach (string index_path in Conf.Daemon.StaticQueryables)
 209                         Console.WriteLine ("[User index]   " + index_path);
 210         }
 211
 212 }
 213
 214