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AddinHostIndex.cs

//
// AddinHostIndex.cs
//
// Author:
//   Lluis Sanchez Gual
//
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//


using System;
using System.Collections;
using Mono.Addins.Serialization;

namespace Mono.Addins.Database
{
      class AddinHostIndex: IBinaryXmlElement
      {
            static BinaryXmlTypeMap typeMap = new BinaryXmlTypeMap (typeof(AddinHostIndex));
            
            Hashtable index = new Hashtable ();
            
            public void RegisterAssembly (string assemblyLocation, string addinId, string addinLocation)
            {
                  assemblyLocation = NormalizeFileName (assemblyLocation);
                  index [Util.GetFullPath (assemblyLocation)] = addinId + " " + addinLocation;
            }
            
            public bool GetAddinForAssembly (string assemblyLocation, out string addinId, out string addinLocation)
            {
                  assemblyLocation = NormalizeFileName (assemblyLocation);
                  string s = index [Util.GetFullPath (assemblyLocation)] as string;
                  if (s == null) {
                        addinId = null;
                        addinLocation = null;
                        return false;
                  }
                  else {
                        int i = s.IndexOf (' ');
                        addinId = s.Substring (0, i);
                        addinLocation = s.Substring (i+1);
                        return true;
                  }
            }
            
            public void RemoveHostData (string addinId, string addinLocation)
            {
                  string loc = addinId + " " + Util.GetFullPath (addinLocation);
                  ArrayList todelete = new ArrayList ();
                  foreach (DictionaryEntry e in index) {
                        if (((string)e.Value) == loc)
                              todelete.Add (e.Key);
                  }
                  foreach (string s in todelete)
                        index.Remove (s);
            }
            
            public static AddinHostIndex Read (FileDatabase fileDatabase, string file)
            {
                  return (AddinHostIndex) fileDatabase.ReadObject (file, typeMap);
            }
            
            public void Write (FileDatabase fileDatabase, string file)
            {
                  fileDatabase.WriteObject (file, this, typeMap);
            }
            
            void IBinaryXmlElement.Write (BinaryXmlWriter writer)
            {
                  writer.WriteValue ("index", index);
            }
            
            void IBinaryXmlElement.Read (BinaryXmlReader reader)
            {
                  reader.ReadValue ("index", index);
            }
            
            string NormalizeFileName (string name)
            {
                  if (Util.IsWindows)
                        return name.ToLower ();
                  else
                        return name;
            }
      }
}

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