source: trunk/sources/HeuristicLab.Hive.Server.ADODataAccess/3.2/ResourceAdapter.cs @ 1597

Last change on this file since 1597 was 1597, checked in by svonolfe, 12 years ago

Refactored ResourceAdapter (polymorphic implementation) (#372)

File size: 4.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Linq;
25using System.Text;
26using HeuristicLab.Hive.Server.DataAccess;
27using HeuristicLab.Hive.Contracts.BusinessObjects;
28using HeuristicLab.DataAccess.ADOHelper;
29using HeuristicLab.Hive.Server.ADODataAccess.dsHiveServerTableAdapters;
30using System.Data.Common;
31using System.Data.SqlClient;
32using HeuristicLab.Hive.Server.ADODataAccess.TableAdapterWrapper;
33
34namespace HeuristicLab.Hive.Server.ADODataAccess {
35  class ResourceAdapter:
36    DataAdapterBase<
37      dsHiveServerTableAdapters.ResourceTableAdapter,
38      Resource,
39      dsHiveServer.ResourceRow>, 
40    IResourceAdapter {
41    #region Fields
42    private IClientAdapter clientAdapter = null;
43
44    private IClientAdapter ClientAdapter {
45      get {
46        if (clientAdapter == null)
47          clientAdapter =
48            this.Session.GetDataAdapter<ClientInfo, IClientAdapter>();
49       
50        return clientAdapter;
51      }
52    }
53
54    private IClientGroupAdapter clientGroupAdapter = null;
55
56    private IClientGroupAdapter ClientGroupAdapter {
57      get {
58        if (clientGroupAdapter == null)
59          clientGroupAdapter =
60            this.Session.GetDataAdapter<ClientGroup, IClientGroupAdapter>();
61
62        return clientGroupAdapter;
63      }
64    }
65    #endregion
66
67    public ResourceAdapter(): base(new ResourceAdapterWrapper()) {
68    }
69
70    #region Overrides
71    protected override Resource ConvertRow(dsHiveServer.ResourceRow row,
72      Resource resource) {
73      if (row != null && resource != null) {
74        resource.Id = row.ResourceId;
75        if (!row.IsNameNull())
76          resource.Name = row.Name;
77        else
78          resource.Name = String.Empty;
79
80        return resource;
81      } else
82        return null;
83    }
84
85    protected override dsHiveServer.ResourceRow ConvertObj(Resource resource,
86      dsHiveServer.ResourceRow row) {
87      if (resource != null && row != null) {
88        row.ResourceId = resource.Id;
89        row.Name = resource.Name;
90
91        return row;
92      } else
93        return null;
94    }
95    #endregion
96
97    #region IResourceAdapter Members
98    public bool GetById(Resource resource) {
99      if (resource != null) {
100        dsHiveServer.ResourceRow row =
101          GetRowById(resource.Id);
102
103        if (row != null) {
104          Convert(row, resource);
105
106          return true;
107        }
108      }
109
110      return false;
111    }
112
113    public Resource GetByName(string name) {
114      return
115        base.FindSingle (
116          delegate() {
117            return Adapter.GetDataByName(name);
118          });
119    }
120
121    #endregion
122
123    #region IPolymorphicDataAdapter<Resource> Members
124
125    public void UpdatePolymorphic(Resource res) {
126      if (res is ClientInfo) {
127        ClientAdapter.Update(res as ClientInfo);
128      } else if (res is ClientGroup) {
129        ClientGroupAdapter.Update(res as ClientGroup);
130      } else {
131        this.Update(res);
132      }
133    }
134
135    public Resource GetByIdPolymorphic(Guid id) {
136      ClientGroup group =
137        ClientGroupAdapter.GetById(id);
138
139      if (group != null)
140        return group;
141      else {
142        ClientInfo client =
143          ClientAdapter.GetById(id);
144
145        if (client != null)
146          return client;
147        else {
148          return this.GetById(id);
149        }
150      }
151    }
152
153    public bool DeletePolymorphic(Resource res) {
154      if (res is ClientInfo) {
155        return ClientAdapter.Delete(res as ClientInfo);
156      } else if (res is ClientGroup) {
157        return ClientGroupAdapter.Delete(res as ClientGroup);
158      } else {
159        return this.Delete(res);
160      }
161    }
162
163    #endregion
164  }
165}
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