beagled/SnippetExecutor.cs

   1 //
   2 // SnippetExecutor.cs
   3 //
   4 // Copyright (C) 2005 Novell, Inc.
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a
   9 // copy of this software and associated documentation files (the "Software"),
  10 // to deal in the Software without restriction, including without limitation
  11 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12 // and/or sell copies of the Software, and to permit persons to whom the
  13 // Software is furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in
  16 // all 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
  23 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24 // DEALINGS IN THE SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.Collections;
  29 using System.Xml.Serialization;
  30
  31 using Beagle.Util;
  32
  33 namespace Beagle.Daemon {
  34
  35         [RequestMessage (typeof (SnippetRequest))]
  36         public class SnippetExecutor : RequestMessageExecutor {
  37
  38                 public override ResponseMessage Execute (RequestMessage req)
  39                 {
  40                         SnippetRequest request = (SnippetRequest) req;
  41                         Queryable queryable = QueryDriver.GetQueryable (request.Hit.Source);
  42                         string snippet;
  43
  44                         if (queryable == null)
  45                                 snippet = String.Format ("ERROR: No queryable object matches '{0}'", request.Hit.Source);
  46                         else
  47                                 snippet = queryable.GetSnippet (request.QueryTerms, request.Hit);
  48
  49                         return new SnippetResponse (snippet);
  50                 }
  51         }
  52 }