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) 2004-2005 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                         "  --list-backends\t\tList the currently available backends.\n" +
  53                         "  --list-filters\t\tList the currently available filters.\n" +
  54                         "  --list-static-indexes\t\tList the available static indexes.\n" +
  55                         "  --help\t\t\tPrint this usage message.\n";
  56
  57                 Console.WriteLine (usage);
  58
  59                 System.Environment.Exit (0);
  60         }
  61
  62         static int Main (string[] args)
  63         {
  64                 if (args.Length == 0 || Array.IndexOf (args, "--help") > -1)
  65                         PrintUsageAndExit ();
  66
  67                 if (Array.IndexOf (args, "--list-filters") > -1)
  68                         PrintFilterInformation ();
  69                 else if (Array.IndexOf (args, "--list-backends") > -1)
  70                         PrintBackendInformation ();
  71                 else if (Array.IndexOf (args, "--list-static-indexes") > -1)
  72                         PrintStaticIndexInformation ();
  73                 else
  74                         return PrintDaemonInformation (args);
  75
  76                 return 0;
  77         }
  78
  79         private static int PrintDaemonInformation (string[] args)
  80         {
  81                 DaemonInformationRequest request = new DaemonInformationRequest ();
  82                 DaemonInformationResponse response;
  83
  84                 try {
  85                         response = (DaemonInformationResponse) request.Send ();
  86                 } catch (Beagle.ResponseMessageException) {
  87                         Console.WriteLine ("Could not connect to the daemon.");
  88                         return 1;
  89                 }
  90
  91                 if (Array.IndexOf (args, "--daemon-version") > -1)
  92                         Console.WriteLine ("Daemon version: {0}", response.Version);
  93
  94                 if (Array.IndexOf (args, "--status") > -1)
  95                         Console.Write (response.HumanReadableStatus);
  96
  97                 if (Array.IndexOf (args, "--index-info") > -1) {
  98                         Console.WriteLine ("Index information:");
  99                         Console.WriteLine (response.IndexInformation);
 100                 }
 101
 102                 if (Array.IndexOf (args, "--is-indexing") > -1)
 103                         Console.WriteLine ("Daemon indexing: {0}", response.IsIndexing);
 104
 105                 return 0;
 106         }
 107
 108         private static void PrintFilterInformation ()
 109         {
 110                 ReflectionFu.ScanEnvironmentForAssemblies ("BEAGLE_FILTER_PATH", PathFinder.FilterDir, PrintFilterDetails);
 111         }
 112
 113         static void PrintFilterDetails (Assembly assembly)
 114         {
 115                 StringBuilder sb = new StringBuilder ();
 116                 foreach (Type t in ReflectionFu.ScanAssemblyForClass (assembly, typeof (Filter))) {
 117                         Filter filter = null;
 118
 119                         try {
 120                                 filter = (Filter) Activator.CreateInstance (t);
 121                         } catch (Exception ex) {
 122                                 Logger.Log.Error ("Caught exception while instantiating {0}", t);
 123                                 Logger.Log.Error (ex);
 124                         }
 125
 126                         if (filter == null)
 127                                 continue;
 128
 129                         string name;
 130
 131                         if (t.FullName.StartsWith (t.Namespace))
 132                                 name = t.FullName.Substring (t.Namespace.Length + 1);
 133                         else
 134                                 name = t.FullName;
 135
 136                         sb.Length = 0;
 137                         sb.Append (name + " - Version " + filter.Version + " (" + assembly.Location + ")\n");
 138                         bool has_filter = false;
 139
 140                         foreach (FilterFlavor flavor in filter.SupportedFlavors) {
 141                                 if (flavor.MimeType != null && (! flavor.MimeType.StartsWith ("beagle"))) {
 142                                         sb.Append ("  - " + flavor.MimeType + "\n");
 143                                         has_filter = true;
 144                                 }
 145                                 if (flavor.Extension != null) {
 146                                         sb.Append ("  - *" + flavor.Extension + "\n");
 147                                         has_filter = true;
 148                                 }
 149                         }
 150
 151                         if (has_filter)
 152                                 Console.WriteLine (sb.ToString ());
 153                 }
 154         }
 155
 156         private static void PrintBackendInformation ()
 157         {
 158                 ArrayList assemblies = ReflectionFu.ScanEnvironmentForAssemblies ("BEAGLE_BACKEND_PATH", PathFinder.BackendDir);
 159
 160                 // Add BeagleDaemonLib if it hasn't already been added.
 161                 bool found_daemon_lib = false;
 162                 foreach (Assembly assembly in assemblies) {
 163                         if (assembly.GetName ().Name == "BeagleDaemonLib") {
 164                                 found_daemon_lib = true;
 165                                 break;
 166                         }
 167                 }
 168
 169                 if (!found_daemon_lib) {
 170                         try {
 171                                 assemblies.Add (Assembly.LoadFrom (Path.Combine (PathFinder.PkgLibDir, "BeagleDaemonLib.dll")));
 172                         } catch (FileNotFoundException) {
 173                                 Console.WriteLine ("WARNING: Could not find backend list.");
 174                                 Environment.Exit (1);
 175                         }
 176                 }
 177
 178                 foreach (Assembly assembly in assemblies) {
 179                         foreach (Type type in ReflectionFu.ScanAssemblyForInterface (assembly, typeof (Beagle.Daemon.IQueryable))) {
 180                                 foreach (Beagle.Daemon.QueryableFlavor flavor in ReflectionFu.ScanTypeForAttribute (type, typeof (Beagle.Daemon.QueryableFlavor))) {
 181                                         Console.WriteLine ("{0,-20} (" + assembly.Location + ")", flavor.Name);
 182                                 }
 183                         }
 184                 }
 185         }
 186
 187         private static void PrintStaticIndexInformation ()
 188         {
 189                 try {
 190                         foreach (DirectoryInfo index_dir in new DirectoryInfo (PathFinder.SystemIndexesDir).GetDirectories ())
 191                                 Console.WriteLine ("[System index] " + index_dir.Name + " (" + index_dir.FullName + ")");
 192                 } catch (DirectoryNotFoundException) { }
 193
 194                 foreach (string index_path in Conf.Daemon.StaticQueryables)
 195                         Console.WriteLine ("[User index]   " + index_path);
 196         }
 197
 198 }
 199
 200