1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2015 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.Configuration;
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25 | using System.IO;
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26 | using System.Linq;
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27 | using System.Security.Cryptography;
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28 | using System.Threading;
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29 | using System.Threading.Tasks;
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30 | using HeuristicLab.Common;
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31 | using HeuristicLab.Core;
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32 | using HeuristicLab.MainForm;
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33 | using HeuristicLab.PluginInfrastructure;
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34 | using TS = System.Threading.Tasks;
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35 | using HeuristicLab.Clients.Hive.WebJobManager.Services;
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36 | using HeuristicLab.Clients.Common.Properties;
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37 | using Microsoft.AspNet.Hosting;
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38 | using HeuristicLab.Clients.Hive.WebJobManager.Services.Imports;
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39 |
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40 | namespace HeuristicLab.Clients.Hive.WebJobManager
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41 | {
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42 | [Item("HiveClientWeb", "Hive client.")]
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43 |
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44 |
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45 | public sealed class HiveClientWeb : IContent
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46 | {
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47 | private static HiveClientWeb instance;
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48 | public static HiveClientWeb Instance
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49 | {
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50 | get
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51 | {
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52 | if (instance == null) instance = new HiveClientWeb();
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53 | return instance;
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54 | }
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55 | }
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56 | public static IHostingEnvironment CurrentEnv { get; set; } //Current building area
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57 | #region Properties
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58 | private HiveItemCollection<RefreshableJob> jobs;
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59 | public HiveItemCollection<RefreshableJob> Jobs
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60 | {
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61 | get { return jobs; }
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62 | set
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63 | {
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64 | if (value != jobs)
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65 | {
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66 | jobs = value;
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67 | OnHiveJobsChanged();
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68 | }
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69 | }
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70 | }
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71 |
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72 | private List<Plugin> onlinePlugins;
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73 | public List<Plugin> OnlinePlugins
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74 | {
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75 | get { return onlinePlugins; }
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76 | set { onlinePlugins = value; }
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77 | }
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78 |
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79 | private List<Plugin> alreadyUploadedPlugins;
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80 | public List<Plugin> AlreadyUploadedPlugins
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81 | {
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82 | get { return alreadyUploadedPlugins; }
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83 | set { alreadyUploadedPlugins = value; }
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84 | }
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85 | #endregion
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86 |
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87 | private HiveClientWeb()
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88 | {
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89 | }
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90 |
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91 | public void ClearHiveClientWeb()
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92 | {
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93 | Jobs.ClearWithoutHiveDeletion();
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94 | foreach (var j in Jobs)
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95 | {
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96 | if (j.RefreshAutomatically)
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97 | {
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98 | j.RefreshAutomatically = false; // stop result polling
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99 | }
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100 | j.Dispose();
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101 | }
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102 | Jobs = null;
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103 |
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104 | if (onlinePlugins != null)
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105 | onlinePlugins.Clear();
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106 | if (alreadyUploadedPlugins != null)
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107 | alreadyUploadedPlugins.Clear();
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108 | }
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109 |
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110 | #region Refresh
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111 | public void Refresh()
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112 | {
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113 | OnRefreshing();
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114 |
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115 | try
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116 | {
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117 | jobs = new HiveItemCollection<RefreshableJob>();
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118 | var jobsLoaded = HiveServiceLocatorWebManagerService.Instance.CallHiveService<IEnumerable<Job>>(s => s.GetJobs());
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119 |
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120 | foreach (var j in jobsLoaded)
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121 | {
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122 | jobs.Add(new RefreshableJob(j));
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123 | }
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124 | }
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125 | catch
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126 | {
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127 | jobs = null;
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128 | throw;
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129 | }
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130 | finally
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131 | {
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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 RefreshAsync(Action<Exception> exceptionCallback)
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137 | {
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138 | var call = new Func<Exception>(delegate ()
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139 | {
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140 | try
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141 | {
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142 | Refresh();
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143 | }
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144 | catch (Exception ex)
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145 | {
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146 | return ex;
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147 | }
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148 | return null;
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149 | });
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150 | call.BeginInvoke(delegate (IAsyncResult result)
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151 | {
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152 | Exception ex = call.EndInvoke(result);
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153 | if (ex != null) exceptionCallback(ex);
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154 | }, null);
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155 | }
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156 | #endregion
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157 |
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158 | #region Store
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159 | public static void Store(IHiveItem item, CancellationToken cancellationToken)
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160 | {
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161 | if (item.Id == Guid.Empty)
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162 | {
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163 | if (item is RefreshableJob)
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164 | {
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165 | HiveClientWeb.Instance.UploadJob((RefreshableJob)item, cancellationToken);
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166 | }
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167 | if (item is JobPermission)
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168 | {
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169 | var hep = (JobPermission)item;
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170 | hep.GrantedUserId = HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => s.GetUserIdByUsername(hep.GrantedUserName));
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171 | if (hep.GrantedUserId == Guid.Empty)
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172 | {
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173 | throw new ArgumentException(string.Format("The user {0} was not found.", hep.GrantedUserName));
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174 | }
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175 | HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => s.GrantPermission(hep.JobId, hep.GrantedUserId, hep.Permission));
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176 | }
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177 | }
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178 | else {
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179 | if (item is Job)
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180 | HiveServiceLocatorWebManagerService.Instance.CallHiveService(s => s.UpdateJob((Job)item));
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181 | }
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182 | }
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183 | public static void StoreAsync(Action<Exception> exceptionCallback, IHiveItem item, CancellationToken cancellationToken)
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184 | {
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185 | var call = new Func<Exception>(delegate ()
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186 | {
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187 | try
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188 | {
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189 | Store(item, cancellationToken);
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190 | }
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191 | catch (Exception ex)
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192 | {
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193 | return ex;
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194 | }
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195 | return null;
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196 | });
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197 | call.BeginInvoke(delegate (IAsyncResult result)
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198 | {
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199 | Exception ex = call.EndInvoke(result);
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200 | if (ex != null) exceptionCallback(ex);
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201 | }, null);
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202 | }
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203 | #endregion
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204 |
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205 | #region Delete
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206 | public static void Delete(IHiveItem item)
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207 | {
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208 | if (item.Id == Guid.Empty && item.GetType() != typeof(JobPermission))
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209 | return;
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210 |
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211 | if (item is Job)
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212 | HiveServiceLocatorWebManagerService.Instance.CallHiveService(s => s.DeleteJob(item.Id));
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213 | if (item is RefreshableJob)
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214 | {
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215 | RefreshableJob job = (RefreshableJob)item;
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216 | if (job.RefreshAutomatically)
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217 | {
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218 | job.StopResultPolling();
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219 | }
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220 | HiveServiceLocatorWebManagerService.Instance.CallHiveService(s => s.DeleteJob(item.Id));
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221 | }
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222 | if (item is JobPermission)
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223 | {
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224 | var hep = (JobPermission)item;
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225 | HiveServiceLocatorWebManagerService.Instance.CallHiveService(s => s.RevokePermission(hep.JobId, hep.GrantedUserId));
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226 | }
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227 | item.Id = Guid.Empty;
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228 | }
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229 | #endregion
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230 |
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231 | #region Events
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232 | public event EventHandler Refreshing;
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233 | private void OnRefreshing()
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234 | {
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235 | EventHandler handler = Refreshing;
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236 | if (handler != null) handler(this, EventArgs.Empty);
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237 | }
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238 | public event EventHandler Refreshed;
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239 | private void OnRefreshed()
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240 | {
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241 | var handler = Refreshed;
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242 | if (handler != null) handler(this, EventArgs.Empty);
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243 | }
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244 | public event EventHandler HiveJobsChanged;
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245 | private void OnHiveJobsChanged()
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246 | {
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247 | var handler = HiveJobsChanged;
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248 | if (handler != null) handler(this, EventArgs.Empty);
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249 | }
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250 | #endregion
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251 |
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252 | public static void StartJob(Action<Exception> exceptionCallback, RefreshableJob refreshableJob, CancellationToken cancellationToken)
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253 | {
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254 | HiveClientWeb.StoreAsync(
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255 | new Action<Exception>((Exception ex) =>
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256 | {
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257 |
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258 | exceptionCallback(ex);
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259 | }), refreshableJob, cancellationToken);
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260 |
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261 | }
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262 |
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263 | public static void PauseJob(RefreshableJob refreshableJob)
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264 | {
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265 | HiveServiceLocatorWebManagerService.Instance.CallHiveService(service =>
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266 | {
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267 | foreach (HiveTask task in refreshableJob.GetAllHiveTasks())
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268 | {
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269 | if (task.Task.State != TaskState.Finished && task.Task.State != TaskState.Aborted && task.Task.State != TaskState.Failed)
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270 | service.PauseTask(task.Task.Id);
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271 | }
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272 | });
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273 | }
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274 |
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275 | public static void StopJob(RefreshableJob refreshableJob)
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276 | {
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277 | HiveServiceLocatorWebManagerService.Instance.CallHiveService(service =>
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278 | {
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279 | foreach (HiveTask task in refreshableJob.GetAllHiveTasks())
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280 | {
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281 | if (task.Task.State != TaskState.Finished && task.Task.State != TaskState.Aborted && task.Task.State != TaskState.Failed)
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282 | service.StopTask(task.Task.Id);
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283 | }
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284 | });
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285 | }
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286 |
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287 | public static void ResumeJob(RefreshableJob refreshableJob)
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288 | {
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289 | HiveServiceLocatorWebManagerService.Instance.CallHiveService(service =>
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290 | {
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291 | foreach (HiveTask task in refreshableJob.GetAllHiveTasks())
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292 | {
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293 | if (task.Task.State == TaskState.Paused)
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294 | {
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295 | service.RestartTask(task.Task.Id);
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296 | }
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297 | }
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298 | });
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299 | }
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300 |
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301 | #region Upload Job
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302 | private Semaphore taskUploadSemaphore = new Semaphore(5, 5);
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303 | private static object jobCountLocker = new object();
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304 | private static object pluginLocker = new object();
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305 | private void UploadJob(RefreshableJob refreshableJob, CancellationToken cancellationToken)
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306 | {
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307 | try
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308 | {
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309 | refreshableJob.IsProgressing = true;
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310 | refreshableJob.Progress.Start("Connecting to server...");
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311 | IEnumerable<string> resourceNames = ToResourceNameList(refreshableJob.Job.ResourceNames);
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312 | var resourceIds = new List<Guid>();
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313 | foreach (var resourceName in resourceNames)
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314 | {
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315 | Guid resourceId = HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => s.GetResourceId(resourceName));
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316 | if (resourceId == Guid.Empty)
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317 | {
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318 | throw new ResourceNotFoundException(string.Format("Could not find the resource '{0}'", resourceName));
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319 | }
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320 | resourceIds.Add(resourceId);
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321 | }
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322 |
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323 | foreach (OptimizerHiveTask hiveJob in refreshableJob.HiveTasks.OfType<OptimizerHiveTask>())
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324 | {
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325 | hiveJob.SetIndexInParentOptimizerList(null);
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326 | }
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327 |
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328 | // upload Job
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329 | refreshableJob.Progress.Status = "Uploading Job...";
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330 | refreshableJob.Job.Id = HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => s.AddJob(refreshableJob.Job));
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331 | refreshableJob.Job = HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => s.GetJob(refreshableJob.Job.Id)); // update owner and permissions
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332 | cancellationToken.ThrowIfCancellationRequested();
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333 |
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334 | int totalJobCount = refreshableJob.GetAllHiveTasks().Count();
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335 | int[] jobCount = new int[1]; // use a reference type (int-array) instead of value type (int) in order to pass the value via a delegate to task-parallel-library
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336 | cancellationToken.ThrowIfCancellationRequested();
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337 |
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338 | // upload plugins
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339 | refreshableJob.Progress.Status = "Uploading plugins...";
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340 | this.OnlinePlugins = HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => s.GetPlugins());
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341 | this.AlreadyUploadedPlugins = new List<Plugin>();
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342 | Plugin configFilePlugin = HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => UploadConfigurationFile(s, onlinePlugins));
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343 | this.alreadyUploadedPlugins.Add(configFilePlugin);
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344 | cancellationToken.ThrowIfCancellationRequested();
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345 |
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346 | // upload tasks
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347 | refreshableJob.Progress.Status = "Uploading tasks...";
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348 |
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349 | var tasks = new List<TS.Task>();
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350 | foreach (HiveTask hiveTask in refreshableJob.HiveTasks)
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351 | {
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352 | var task = TS.Task.Factory.StartNew((hj) =>
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353 | {
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354 | UploadTaskWithChildren(refreshableJob.Progress, (HiveTask)hj, null, resourceIds, jobCount, totalJobCount, configFilePlugin.Id, refreshableJob.Job.Id, refreshableJob.Log, cancellationToken);
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355 | }, hiveTask);
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356 | task.ContinueWith((x) => refreshableJob.Log.LogException(x.Exception), TaskContinuationOptions.OnlyOnFaulted);
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357 | tasks.Add(task);
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358 | }
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359 | TS.Task.WaitAll(tasks.ToArray());
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360 | }
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361 | finally
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362 | {
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363 | refreshableJob.IsProgressing = false;
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364 | refreshableJob.Progress.Finish();
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365 | }
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366 | }
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367 |
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368 | /// <summary>
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369 | /// Uploads the local configuration file as plugin
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370 | /// </summary>
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371 | private static Plugin UploadConfigurationFile(IHiveService service, List<Plugin> onlinePlugins)
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372 | {
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373 | string exeFilePath = Path.Combine( CurrentEnv.WebRootPath, "bin" , HeuristicLab.Clients.Hive.Settings.Default.HLBinaryName);
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374 | string configFileName = Path.GetFileName(ConfigurationManager.OpenExeConfiguration(exeFilePath).FilePath);
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375 | string configFilePath = ConfigurationManager.OpenExeConfiguration(exeFilePath).FilePath;
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376 | byte[] hash;
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377 |
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378 | byte[] data = File.ReadAllBytes(configFilePath);
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379 | using (SHA1 sha1 = SHA1.Create())
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380 | {
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381 | hash = sha1.ComputeHash(data);
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382 | }
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383 |
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384 | Plugin configPlugin = new Plugin() { Name = "Configuration", Version = new Version(), Hash = hash };
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385 | PluginData configFile = new PluginData() { FileName = configFileName, Data = data };
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386 |
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387 | IEnumerable<Plugin> onlineConfig = onlinePlugins.Where(p => p.Hash.SequenceEqual(hash));
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388 |
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389 | if (onlineConfig.Count() > 0)
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390 | {
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391 | return onlineConfig.First();
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392 | }
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393 | else {
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394 | configPlugin.Id = service.AddPlugin(configPlugin, new List<PluginData> { configFile });
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395 | return configPlugin;
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396 | }
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397 | }
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398 |
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399 | /// <summary>
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400 | /// Uploads the given task and all its child-jobs while setting the proper parentJobId values for the childs
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401 | /// </summary>
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402 | /// <param name="parentHiveTask">shall be null if its the root task</param>
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403 | private void UploadTaskWithChildren(IProgress progress, HiveTask hiveTask, HiveTask parentHiveTask, IEnumerable<Guid> groups, int[] taskCount, int totalJobCount, Guid configPluginId, Guid jobId, ILog log, CancellationToken cancellationToken)
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404 | {
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405 | taskUploadSemaphore.WaitOne();
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406 | bool semaphoreReleased = false;
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407 | try
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408 | {
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409 | cancellationToken.ThrowIfCancellationRequested();
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410 | lock (jobCountLocker)
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411 | {
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412 | taskCount[0]++;
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413 | }
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414 | TaskData taskData;
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415 | List<IPluginDescription> plugins;
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416 |
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417 | if (hiveTask.ItemTask.ComputeInParallel)
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418 | {
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419 | hiveTask.Task.IsParentTask = true;
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420 | hiveTask.Task.FinishWhenChildJobsFinished = true;
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421 | taskData = hiveTask.GetAsTaskData(true, out plugins);
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422 | }
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423 | else {
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424 | hiveTask.Task.IsParentTask = false;
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425 | hiveTask.Task.FinishWhenChildJobsFinished = false;
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426 | taskData = hiveTask.GetAsTaskData(false, out plugins);
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427 | }
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428 | cancellationToken.ThrowIfCancellationRequested();
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429 |
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430 | TryAndRepeat(() =>
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431 | {
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432 | if (!cancellationToken.IsCancellationRequested)
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433 | {
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434 | lock (pluginLocker)
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435 | {
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436 | HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => hiveTask.Task.PluginsNeededIds = PluginUtil.GetPluginDependencies(s, this.onlinePlugins, this.alreadyUploadedPlugins, plugins));
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437 | }
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438 | }
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439 | }, 5, "Failed to upload plugins");
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440 | cancellationToken.ThrowIfCancellationRequested();
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441 | hiveTask.Task.PluginsNeededIds.Add(configPluginId);
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442 | hiveTask.Task.JobId = jobId;
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443 |
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444 | log.LogMessage(string.Format("Uploading task ({0} kb, {1} objects)", taskData.Data.Count() / 1024, hiveTask.ItemTask.GetObjectGraphObjects().Count()));
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445 | TryAndRepeat(() =>
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446 | {
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447 | if (!cancellationToken.IsCancellationRequested)
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448 | {
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449 | if (parentHiveTask != null)
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450 | {
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451 | hiveTask.Task.Id = HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => s.AddChildTask(parentHiveTask.Task.Id, hiveTask.Task, taskData));
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452 | }
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453 | else {
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454 | hiveTask.Task.Id = HiveServiceLocatorWebManagerService.Instance.CallHiveService((s) => s.AddTask(hiveTask.Task, taskData, groups.ToList()));
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455 | }
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456 | }
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457 | }, 5, "Failed to add task", log);
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458 | cancellationToken.ThrowIfCancellationRequested();
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459 |
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460 | lock (jobCountLocker)
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461 | {
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462 | progress.ProgressValue = (double)taskCount[0] / totalJobCount;
|
---|
463 | progress.Status = string.Format("Uploaded task ({0} of {1})", taskCount[0], totalJobCount);
|
---|
464 | }
|
---|
465 |
|
---|
466 | var tasks = new List<TS.Task>();
|
---|
467 | foreach (HiveTask child in hiveTask.ChildHiveTasks)
|
---|
468 | {
|
---|
469 | var task = TS.Task.Factory.StartNew((tuple) =>
|
---|
470 | {
|
---|
471 | var arguments = (Tuple<HiveTask, HiveTask>)tuple;
|
---|
472 | UploadTaskWithChildren(progress, arguments.Item1, arguments.Item2, groups, taskCount, totalJobCount, configPluginId, jobId, log, cancellationToken);
|
---|
473 | }, new Tuple<HiveTask, HiveTask>(child, hiveTask));
|
---|
474 | task.ContinueWith((x) => log.LogException(x.Exception), TaskContinuationOptions.OnlyOnFaulted);
|
---|
475 | tasks.Add(task);
|
---|
476 | }
|
---|
477 | taskUploadSemaphore.Release(); semaphoreReleased = true; // the semaphore has to be release before waitall!
|
---|
478 | TS.Task.WaitAll(tasks.ToArray());
|
---|
479 | }
|
---|
480 | finally
|
---|
481 | {
|
---|
482 | if (!semaphoreReleased) taskUploadSemaphore.Release();
|
---|
483 | }
|
---|
484 | }
|
---|
485 | #endregion
|
---|
486 |
|
---|
487 | #region Download Experiment
|
---|
488 | public static void LoadJob(RefreshableJob refreshableJob)
|
---|
489 | {
|
---|
490 | var hiveExperiment = refreshableJob.Job;
|
---|
491 | refreshableJob.IsProgressing = true;
|
---|
492 | TaskDownloaderWeb downloader = null;
|
---|
493 |
|
---|
494 | try
|
---|
495 | {
|
---|
496 | int totalJobCount = 0;
|
---|
497 | IEnumerable<LightweightTask> allTasks;
|
---|
498 |
|
---|
499 | // fetch all task objects to create the full tree of tree of HiveTask objects
|
---|
500 | refreshableJob.Progress.Start("Downloading list of tasks...");
|
---|
501 | allTasks = HiveServiceLocatorWebManagerService.Instance.CallHiveService(s => s.GetLightweightJobTasksWithoutStateLog(hiveExperiment.Id));
|
---|
502 | totalJobCount = allTasks.Count();
|
---|
503 |
|
---|
504 | refreshableJob.Progress.Status = "Downloading tasks...";
|
---|
505 | downloader = new TaskDownloaderWeb(allTasks.Select(x => x.Id));
|
---|
506 | downloader.StartAsync();
|
---|
507 |
|
---|
508 | while (!downloader.IsFinished)
|
---|
509 | {
|
---|
510 | refreshableJob.Progress.ProgressValue = downloader.FinishedCount / (double)totalJobCount;
|
---|
511 | refreshableJob.Progress.Status = string.Format("Downloading/deserializing tasks... ({0}/{1} finished)", downloader.FinishedCount, totalJobCount);
|
---|
512 | Thread.Sleep(500);
|
---|
513 |
|
---|
514 | if (downloader.IsFaulted)
|
---|
515 | {
|
---|
516 | throw downloader.Exception;
|
---|
517 | }
|
---|
518 | }
|
---|
519 | IDictionary<Guid, HiveTask> allHiveTasks = downloader.Results;
|
---|
520 | var parents = allHiveTasks.Values.Where(x => !x.Task.ParentTaskId.HasValue);
|
---|
521 |
|
---|
522 | refreshableJob.Progress.Status = "Downloading/deserializing complete. Displaying tasks...";
|
---|
523 | // build child-task tree
|
---|
524 | foreach (HiveTask hiveTask in parents)
|
---|
525 | {
|
---|
526 | BuildHiveJobTree(hiveTask, allTasks, allHiveTasks);
|
---|
527 | }
|
---|
528 |
|
---|
529 | refreshableJob.HiveTasks = new ItemCollection<HiveTask>(parents);
|
---|
530 | refreshableJob.OnLoaded();
|
---|
531 | }
|
---|
532 | finally
|
---|
533 | {
|
---|
534 | refreshableJob.IsProgressing = false;
|
---|
535 | refreshableJob.Progress.Finish();
|
---|
536 | if (downloader != null)
|
---|
537 | {
|
---|
538 | downloader.Dispose();
|
---|
539 | }
|
---|
540 | }
|
---|
541 | }
|
---|
542 |
|
---|
543 | private static void BuildHiveJobTree(HiveTask parentHiveTask, IEnumerable<LightweightTask> allTasks, IDictionary<Guid, HiveTask> allHiveTasks)
|
---|
544 | {
|
---|
545 | IEnumerable<LightweightTask> childTasks = from job in allTasks
|
---|
546 | where job.ParentTaskId.HasValue && job.ParentTaskId.Value == parentHiveTask.Task.Id
|
---|
547 | orderby job.DateCreated ascending
|
---|
548 | select job;
|
---|
549 | foreach (LightweightTask task in childTasks)
|
---|
550 | {
|
---|
551 | HiveTask childHiveTask = allHiveTasks[task.Id];
|
---|
552 | BuildHiveJobTree(childHiveTask, allTasks, allHiveTasks);
|
---|
553 | parentHiveTask.AddChildHiveTask(childHiveTask);
|
---|
554 | }
|
---|
555 | }
|
---|
556 | #endregion
|
---|
557 |
|
---|
558 | /// <summary>
|
---|
559 | /// Converts a string which can contain Ids separated by ';' to a enumerable
|
---|
560 | /// </summary>
|
---|
561 | private static IEnumerable<string> ToResourceNameList(string resourceNames)
|
---|
562 | {
|
---|
563 | if (!string.IsNullOrEmpty(resourceNames))
|
---|
564 | {
|
---|
565 | return resourceNames.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
|
---|
566 | }
|
---|
567 | else {
|
---|
568 | return new List<string>();
|
---|
569 | }
|
---|
570 | }
|
---|
571 |
|
---|
572 | public static ItemTask LoadItemJob(Guid jobId)
|
---|
573 | {
|
---|
574 | TaskData taskData = HiveServiceLocatorWebManagerService.Instance.CallHiveService(s => s.GetTaskData(jobId));
|
---|
575 | try
|
---|
576 | {
|
---|
577 | return PersistenceUtil.Deserialize<ItemTask>(taskData.Data);
|
---|
578 | }
|
---|
579 | catch
|
---|
580 | {
|
---|
581 | return null;
|
---|
582 | }
|
---|
583 | }
|
---|
584 |
|
---|
585 | /// <summary>
|
---|
586 | /// Executes the action. If it throws an exception it is repeated until repetition-count is reached.
|
---|
587 | /// If repetitions is -1, it is repeated infinitely.
|
---|
588 | /// </summary>
|
---|
589 | public static void TryAndRepeat(Action action, int repetitions, string errorMessage, ILog log = null)
|
---|
590 | {
|
---|
591 | while (true)
|
---|
592 | {
|
---|
593 | try { action(); return; }
|
---|
594 | catch (Exception e)
|
---|
595 | {
|
---|
596 | if (repetitions == 0) throw new HiveException(errorMessage, e);
|
---|
597 | if (log != null) log.LogMessage(string.Format("{0}: {1} - will try again!", errorMessage, e.ToString()));
|
---|
598 | repetitions--;
|
---|
599 | }
|
---|
600 | }
|
---|
601 | }
|
---|
602 |
|
---|
603 | public static HiveItemCollection<JobPermission> GetJobPermissions(Guid jobId)
|
---|
604 | {
|
---|
605 | return HiveServiceLocatorWebManagerService.Instance.CallHiveService((service) =>
|
---|
606 | {
|
---|
607 | IEnumerable<JobPermission> jps = service.GetJobPermissions(jobId);
|
---|
608 | foreach (var hep in jps)
|
---|
609 | {
|
---|
610 | hep.UnmodifiedGrantedUserNameUpdate(service.GetUsernameByUserId(hep.GrantedUserId));
|
---|
611 | }
|
---|
612 | return new HiveItemCollection<JobPermission>(jps);
|
---|
613 | });
|
---|
614 | }
|
---|
615 | }
|
---|
616 | } |
---|