1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Linq;
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24 | using HeuristicLab.Clients.Common;
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25 | using HeuristicLab.Collections;
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26 | using HeuristicLab.Common;
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27 | using HeuristicLab.Core;
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28 | using HeuristicLab.PluginInfrastructure;
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29 |
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30 | namespace HeuristicLab.Clients.OKB {
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31 | [Item("Administrator", "OKB administrator front-end.")]
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32 | public sealed class Administrator : IContent {
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33 | private static Administrator instance;
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34 | public static Administrator Instance {
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35 | get {
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36 | if (instance == null) instance = new Administrator();
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37 | return instance;
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38 | }
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39 | }
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40 |
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41 | private ItemCollection<AlgorithmClass> algorithmClasses;
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42 | public ItemCollection<AlgorithmClass> AlgorithmClasses {
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43 | get { return algorithmClasses; }
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44 | }
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45 | private ItemCollection<Algorithm> algorithms;
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46 | public ItemCollection<Algorithm> Algorithms {
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47 | get { return algorithms; }
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48 | }
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49 |
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50 | private Administrator() { }
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51 |
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52 | public void Refresh() {
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53 | OnRefreshing();
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54 | if (algorithmClasses == null) {
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55 | algorithmClasses = new ItemCollection<AlgorithmClass>();
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56 | algorithmClasses.ItemsRemoved += new CollectionItemsChangedEventHandler<AlgorithmClass>(algorithmClasses_ItemsRemoved);
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57 | }
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58 | if (algorithms == null) {
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59 | algorithms = new ItemCollection<Algorithm>();
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60 | algorithms.ItemsRemoved += new CollectionItemsChangedEventHandler<Algorithm>(algorithms_ItemsRemoved);
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61 | }
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62 | algorithmClasses.Clear();
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63 | algorithms.Clear();
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64 |
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65 | var action = new Action(delegate() {
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66 | algorithmClasses.AddRange(CallAdminService<ItemCollection<AlgorithmClass>>(s => s.GetAlgorithmClasses()).OrderBy(a => a.Name));
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67 | algorithms.AddRange(CallAdminService<ItemCollection<Algorithm>>(s => s.GetAlgorithms()).OrderBy(a => a.Name));
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68 | });
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69 | action.BeginInvoke(delegate(IAsyncResult result) {
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70 | action.EndInvoke(result);
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71 | OnRefreshed();
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72 | }, null);
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73 | }
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74 |
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75 | public void Store(IOKBItem item) {
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76 | if (item is AlgorithmClass)
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77 | CallAdminService(s => s.StoreAlgorithmClass((AlgorithmClass)item));
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78 | else if (item is Algorithm)
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79 | CallAdminService(s => s.StoreAlgorithm((Algorithm)item));
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80 | }
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81 |
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82 | public event EventHandler Refreshing;
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83 | private void OnRefreshing() {
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84 | EventHandler handler = Refreshing;
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85 | if (handler != null) handler(this, EventArgs.Empty);
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86 | }
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87 | public event EventHandler Refreshed;
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88 | private void OnRefreshed() {
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89 | EventHandler handler = Refreshed;
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90 | if (handler != null) handler(this, EventArgs.Empty);
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91 | }
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92 |
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93 | private void algorithmClasses_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<AlgorithmClass> e) {
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94 | foreach (AlgorithmClass a in e.Items)
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95 | CallAdminService(s => s.DeleteAlgorithmClass(a.Id));
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96 | }
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97 | private void algorithms_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<Algorithm> e) {
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98 | foreach (Algorithm a in e.Items)
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99 | CallAdminService(s => s.DeleteAlgorithm(a.Id));
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100 | }
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101 |
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102 | #region Helpers
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103 | private void CallAdminService(Action<IAdminService> call) {
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104 | AdminServiceClient client = ClientFactory.CreateClient<AdminServiceClient, IAdminService>();
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105 | try {
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106 | call(client);
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107 | }
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108 | catch (Exception ex) {
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109 | ErrorHandling.ShowErrorDialog(ex);
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110 | }
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111 | finally {
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112 | try {
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113 | client.Close();
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114 | }
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115 | catch (Exception) {
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116 | client.Abort();
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117 | }
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118 | }
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119 | }
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120 | private T CallAdminService<T>(Func<IAdminService, T> call) where T : class {
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121 | AdminServiceClient client = ClientFactory.CreateClient<AdminServiceClient, IAdminService>();
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122 | try {
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123 | return call(client);
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124 | }
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125 | catch (Exception ex) {
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126 | ErrorHandling.ShowErrorDialog(ex);
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127 | }
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128 | finally {
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129 | try {
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130 | client.Close();
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131 | }
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132 | catch (Exception) {
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133 | client.Abort();
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134 | }
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135 | }
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136 | return null;
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137 | }
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138 | #endregion
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139 | }
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140 | }
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