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.Collections.Generic;
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24 | using System.Linq;
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25 | using HeuristicLab.Collections;
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26 | using HeuristicLab.Core;
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27 |
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28 | namespace HeuristicLab.Clients.Hive {
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29 | using HeuristicLab.Common;
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30 |
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31 | [Item("Hive Client", "Connects to Hive and lists all submitted experiments by the current user.")]
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32 | [Creatable("Hive")]
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33 | public class HiveExperimentManagerClient : Item, IProgressReporter {
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34 | private static object locker = new object();
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35 | private bool currentlyUpdating;
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36 |
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37 | private ItemList<HiveExperimentClient> hiveExperiments;
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38 | public ItemList<HiveExperimentClient> HiveExperiments {
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39 | get { return hiveExperiments; }
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40 | set {
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41 | if (hiveExperiments != value) {
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42 | DeRegisterHiveExperimentsEvents();
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43 | hiveExperiments = value;
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44 | RegisterHiveExperimentsEvent();
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45 | OnHiveExperimentsChanged();
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46 | }
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47 | }
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48 | }
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49 |
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50 | private bool isProgressing;
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51 | public bool IsProgressing {
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52 | get { return isProgressing; }
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53 | set {
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54 | if (isProgressing != value) {
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55 | isProgressing = value;
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56 | OnIsProgressingChanged();
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57 | }
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58 | }
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59 | }
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60 |
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61 | private IProgress progress;
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62 | public IProgress Progress {
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63 | get { return progress; }
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64 | }
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65 |
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66 | public HiveExperimentManagerClient() { }
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67 | protected HiveExperimentManagerClient(HiveExperimentManagerClient original, Cloner cloner)
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68 | : base(original, cloner) {
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69 | this.hiveExperiments = cloner.Clone(original.hiveExperiments);
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70 | }
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71 | public override IDeepCloneable Clone(Cloner cloner) {
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72 | return new HiveExperimentManagerClient(this, cloner);
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73 | }
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74 |
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75 | private void RegisterHiveExperimentsEvent() {
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76 | if (hiveExperiments != null) {
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77 | hiveExperiments.ItemsRemoved += new CollectionItemsChangedEventHandler<IndexedItem<HiveExperimentClient>>(hiveExperiments_ItemsRemoved);
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78 | }
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79 | }
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80 |
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81 | private void DeRegisterHiveExperimentsEvents() {
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82 | if (hiveExperiments != null) {
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83 | hiveExperiments.ItemsRemoved -= new CollectionItemsChangedEventHandler<IndexedItem<HiveExperimentClient>>(hiveExperiments_ItemsRemoved);
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84 | }
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85 | }
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86 |
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87 | public void UpdateExperimentList() {
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88 | this.progress = new Progress("Downloading HiveExperiments...");
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89 | try {
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90 | IsProgressing = true;
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91 | if (this.HiveExperiments == null) {
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92 | this.HiveExperiments = new ItemList<HiveExperimentClient>();
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93 | }
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94 | currentlyUpdating = true;
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95 | IEnumerable<HiveExperiment> response = ServiceLocator.Instance.CallHiveService(s => s.GetHiveExperiments());
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96 | progress.Status = "Populating HiveExperiment list...";
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97 | RefreshExperimentList(response);
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98 | currentlyUpdating = false;
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99 | }
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100 | catch (Exception) {
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101 | this.HiveExperiments = null;
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102 | throw;
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103 | }
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104 | finally {
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105 | IsProgressing = false;
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106 | }
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107 | }
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108 |
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109 | private void RefreshExperimentList(IEnumerable<HiveExperiment> hiveExperiments) {
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110 | foreach (HiveExperiment hiveExperimentDto in hiveExperiments) {
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111 | HiveExperimentClient hiveExperiment = GetHiveExperiment(hiveExperimentDto.Id);
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112 | if (hiveExperiment == null) {
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113 | // not yet there, create new
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114 | this.HiveExperiments.Add(new HiveExperimentClient(hiveExperimentDto));
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115 | } else {
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116 | // update
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117 | hiveExperiment.UpdateFromDto(hiveExperimentDto);
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118 | }
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119 | }
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120 | }
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121 |
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122 | private HiveExperimentClient GetHiveExperiment(Guid hiveExperimentId) {
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123 | return this.HiveExperiments.SingleOrDefault(he => he.HiveExperimentId.Equals(hiveExperimentId));
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124 | }
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125 |
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126 | public event EventHandler HiveExperimentsChanged;
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127 | private void OnHiveExperimentsChanged() {
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128 | var handler = HiveExperimentsChanged;
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129 | if (handler != null) handler(this, EventArgs.Empty);
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130 | }
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131 |
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132 | private void hiveExperiments_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<HiveExperimentClient>> e) {
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133 | if (!currentlyUpdating) {
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134 | ServiceLocator.Instance.CallHiveService(service => {
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135 | foreach (IndexedItem<HiveExperimentClient> item in e.Items) {
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136 | if (item.Value.HiveExperimentId != Guid.Empty) {
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137 | service.DeleteHiveExperiment(item.Value.HiveExperimentId);
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138 | }
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139 | }
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140 | });
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141 | }
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142 | }
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143 |
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144 | public event EventHandler IsProgressingChanged;
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145 | private void OnIsProgressingChanged() {
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146 | var handler = IsProgressingChanged;
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147 | if (handler != null) handler(this, EventArgs.Empty);
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148 | }
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149 | }
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150 | }
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