1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2011 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.Threading;
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24 | using HeuristicLab.Common;
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25 | using HeuristicLab.Core;
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26 |
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27 | namespace HeuristicLab.Clients.Hive {
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28 | [Item("Hive Administrator", "Hive Administrator")]
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29 | public sealed class HiveAdminClient : IContent {
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30 | private static HiveAdminClient instance;
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31 | public static HiveAdminClient Instance {
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32 | get {
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33 | if (instance == null) instance = new HiveAdminClient();
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34 | return instance;
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35 | }
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36 | }
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37 |
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38 | private IItemList<Resource> resources;
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39 | public IItemList<Resource> Resources {
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40 | get { return resources; }
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41 | }
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42 |
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43 | private IItemList<Downtime> downtimes;
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44 | public IItemList<Downtime> Downtimes {
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45 | get { return downtimes; }
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46 | }
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47 |
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48 | private Guid downtimeForResourceId;
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49 | public Guid DowntimeForResourceId {
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50 | get { return downtimeForResourceId; }
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51 | set {
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52 | downtimeForResourceId = value;
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53 | if (downtimes != null) {
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54 | downtimes.Clear();
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55 | }
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56 | OnDowntimesChanged();
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57 | }
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58 | }
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59 |
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60 | #region Events
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61 | public event EventHandler Refreshing;
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62 | private void OnRefreshing() {
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63 | EventHandler handler = Refreshing;
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64 | if (handler != null) handler(this, EventArgs.Empty);
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65 | }
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66 | public event EventHandler Refreshed;
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67 | private void OnRefreshed() {
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68 | var handler = Refreshed;
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69 | if (handler != null) handler(this, EventArgs.Empty);
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70 | }
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71 | public event EventHandler DowntimesChanged;
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72 | private void OnDowntimesChanged() {
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73 | var handler = DowntimesChanged;
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74 | if (handler != null) handler(this, EventArgs.Empty);
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75 | }
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76 | #endregion
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77 |
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78 | private HiveAdminClient() { }
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79 |
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80 | #region Refresh
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81 | public void Refresh() {
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82 | OnRefreshing();
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83 |
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84 | try {
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85 | resources = new ItemList<Resource>();
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86 |
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87 | ServiceLocator.Instance.CallHiveService(service => {
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88 | service.GetSlaveGroups().ForEach(g => resources.Add(g));
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89 | service.GetSlaves().ForEach(s => resources.Add(s));
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90 | });
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91 | }
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92 | catch {
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93 | throw;
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94 | }
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95 | finally {
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96 | OnRefreshed();
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97 | }
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98 | }
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99 | public void RefreshAsync(Action<Exception> exceptionCallback) {
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100 | var call = new Func<Exception>(delegate() {
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101 | try {
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102 | Refresh();
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103 | }
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104 | catch (Exception ex) {
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105 | return ex;
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106 | }
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107 | return null;
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108 | });
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109 | call.BeginInvoke(delegate(IAsyncResult result) {
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110 | Exception ex = call.EndInvoke(result);
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111 | if (ex != null) exceptionCallback(ex);
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112 | }, null);
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113 | }
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114 | #endregion
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115 |
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116 | #region Refresh downtime calendar
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117 | public void RefreshCalendar() {
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118 | if (downtimeForResourceId != null && downtimeForResourceId != Guid.Empty) {
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119 | OnRefreshing();
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120 |
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121 | try {
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122 | downtimes = new ItemList<Downtime>();
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123 |
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124 | ServiceLocator.Instance.CallHiveService(service => {
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125 | service.GetDowntimesForResource(downtimeForResourceId).ForEach(d => downtimes.Add(d));
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126 | });
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127 | }
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128 | catch {
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129 | throw;
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130 | }
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131 | finally {
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132 | OnRefreshed();
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133 | }
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134 | }
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135 | }
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136 | public void RefreshCalendarAsync(Action<Exception> exceptionCallback) {
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137 | var call = new Func<Exception>(delegate() {
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138 | try {
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139 | RefreshCalendar();
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140 | }
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141 | catch (Exception ex) {
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142 | return ex;
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143 | }
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144 | return null;
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145 | });
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146 | call.BeginInvoke(delegate(IAsyncResult result) {
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147 | Exception ex = call.EndInvoke(result);
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148 | if (ex != null) exceptionCallback(ex);
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149 | }, null);
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150 | }
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151 | #endregion
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152 |
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153 | #region Store
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154 | public static void Store(IHiveItem item, CancellationToken cancellationToken) {
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155 | if (item.Id == Guid.Empty) {
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156 | if (item is SlaveGroup) {
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157 | item.Id = ServiceLocator.Instance.CallHiveService((s) => s.AddSlaveGroup((SlaveGroup)item));
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158 | }
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159 | if (item is Slave) {
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160 | item.Id = ServiceLocator.Instance.CallHiveService((s) => s.AddSlave((Slave)item));
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161 | }
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162 | if (item is Downtime) {
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163 | item.Id = ServiceLocator.Instance.CallHiveService((s) => s.AddDowntime((Downtime)item));
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164 | }
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165 | } else {
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166 | if (item is SlaveGroup) {
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167 | ServiceLocator.Instance.CallHiveService((s) => s.UpdateSlaveGroup((SlaveGroup)item));
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168 | }
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169 | if (item is Slave) {
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170 | ServiceLocator.Instance.CallHiveService((s) => s.UpdateSlave((Slave)item));
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171 | }
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172 | if (item is Downtime) {
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173 | ServiceLocator.Instance.CallHiveService((s) => s.UpdateDowntime((Downtime)item));
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174 | }
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175 | }
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176 | }
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177 | public static void StoreAsync(Action<Exception> exceptionCallback, IHiveItem item, CancellationToken cancellationToken) {
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178 | var call = new Func<Exception>(delegate() {
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179 | try {
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180 | Store(item, cancellationToken);
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181 | }
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182 | catch (Exception ex) {
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183 | return ex;
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184 | }
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185 | return null;
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186 | });
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187 | call.BeginInvoke(delegate(IAsyncResult result) {
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188 | Exception ex = call.EndInvoke(result);
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189 | if (ex != null) exceptionCallback(ex);
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190 | }, null);
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191 | }
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192 | #endregion
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193 |
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194 | #region Delete
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195 | public static void Delete(IHiveItem item) {
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196 | if (item is SlaveGroup) {
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197 | ServiceLocator.Instance.CallHiveService((s) => s.DeleteSlaveGroup(item.Id));
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198 | } else if (item is Slave) {
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199 | ServiceLocator.Instance.CallHiveService((s) => s.DeleteSlave(item.Id));
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200 | } else if (item is Downtime) {
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201 | ServiceLocator.Instance.CallHiveService((s) => s.DeleteDowntime(item.Id));
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202 | }
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203 | }
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204 | #endregion
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205 |
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206 | public void ResetDowntime() {
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207 | downtimeForResourceId = Guid.Empty;
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208 | if (downtimes != null) {
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209 | downtimes.Clear();
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210 | }
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211 | OnDowntimesChanged();
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212 | }
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213 | }
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214 | }
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