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AddinDependency.cs

//
// AddinDependency.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 System.Collections.Specialized;
using System.Xml;
using System.Xml.Serialization;
using Mono.Addins.Serialization;

namespace Mono.Addins.Description
{
      [XmlType ("AddinReference")]
      public class AddinDependency: Dependency
      {
            string id;
            string version;
            
            public AddinDependency ()
            {
            }
            
            public AddinDependency (string fullId)
            {
                  Addin.GetIdParts (fullId, out id, out version);
                  id = "::" + id;
            }
            
            public AddinDependency (string id, string version)
            {
                  this.id = id;
                  this.version = version;
            }
            
            internal AddinDependency (XmlElement elem): base (elem)
            {
                  id = elem.GetAttribute ("id");
                  version = elem.GetAttribute ("version");
            }
            
            internal override void Verify (string location, StringCollection errors)
            {
                  VerifyNotEmpty (location + "Dependencies/Addin/", errors, "id", AddinId);
                  VerifyNotEmpty (location + "Dependencies/Addin/", errors, "version", Version);
            }
            
            internal override void SaveXml (XmlElement parent)
            {
                  CreateElement (parent, "Addin"); 
                  Element.SetAttribute ("id", AddinId);
                  Element.SetAttribute ("version", Version);
            }
            
            public string FullAddinId {
                  get {
                        AddinDescription desc = ParentAddinDescription;
                        if (desc == null)
                              return Addin.GetFullId (null, AddinId, Version);
                        else
                              return Addin.GetFullId (desc.Namespace, AddinId, Version);
                  }
            }
            
            public string AddinId {
                  get { return id != null ? id : string.Empty; }
                  set { id = value; }
            }
            
            public string Version {
                  get { return version != null ? version : string.Empty; }
                  set { version = value; }
            }
            
            public override string Name {
                  get { return AddinId + " v" + version; }
            }
            
            internal override bool CheckInstalled ()
            {
                  Addin[] addins = AddinManager.Registry.GetAddins ();
                  foreach (Addin addin in addins) {
                        if (addin.Id == id && addin.SupportsVersion (version)) {
                              return true;
                        }
                  }
                  return false;
            }

            internal override void Write (BinaryXmlWriter writer)
            {
                  base.Write (writer);
                  writer.WriteValue ("id", id);
                  writer.WriteValue ("version", version);
            }
            
            internal override void Read (BinaryXmlReader reader)
            {
                  base.Read (reader);
                  id = reader.ReadStringValue ("id");
                  version = reader.ReadStringValue ("version");
            }
      }
}

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