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.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.PluginInfrastructure;
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33 |
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34 | namespace HeuristicLab.Clients.Hive {
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35 | [Item("HiveClient", "Hive client.")]
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36 | public sealed class HiveClient : IContent {
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37 | private static HiveClient instance;
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38 | public static HiveClient Instance {
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39 | get {
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40 | if (instance == null) instance = new HiveClient();
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41 | return instance;
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42 | }
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43 | }
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44 |
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45 | #region Properties
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46 | private ItemCollection<RefreshableHiveExperiment> hiveExperiments;
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47 | public ItemCollection<RefreshableHiveExperiment> HiveExperiments {
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48 | get { return hiveExperiments; }
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49 | set {
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50 | if (value != hiveExperiments) {
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51 | hiveExperiments = value;
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52 | OnHiveExperimentsChanged();
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53 | }
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54 | }
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55 | }
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56 |
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57 | private List<Plugin> onlinePlugins;
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58 | public List<Plugin> OnlinePlugins {
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59 | get { return onlinePlugins; }
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60 | set { onlinePlugins = value; }
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61 | }
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62 |
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63 | private List<Plugin> alreadyUploadedPlugins;
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64 | public List<Plugin> AlreadyUploadedPlugins {
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65 | get { return alreadyUploadedPlugins; }
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66 | set { alreadyUploadedPlugins = value; }
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67 | }
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68 | #endregion
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69 |
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70 | public HiveClient() { }
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71 |
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72 | #region Refresh
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73 | public void Refresh() {
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74 | OnRefreshing();
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75 |
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76 | try {
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77 | hiveExperiments = new HiveItemCollection<RefreshableHiveExperiment>();
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78 | var he = ServiceLocator.Instance.CallHiveService<IEnumerable<HiveExperiment>>(s => s.GetHiveExperiments());
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79 | hiveExperiments.AddRange(he.Select(x => new RefreshableHiveExperiment(x)).OrderBy(x => x.HiveExperiment.Name));
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80 | }
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81 | catch {
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82 | hiveExperiments = null;
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83 | throw;
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84 | }
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85 | finally {
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86 | OnRefreshed();
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87 | }
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88 | }
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89 | public void RefreshAsync(Action<Exception> exceptionCallback) {
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90 | var call = new Func<Exception>(delegate() {
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91 | try {
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92 | Refresh();
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93 | }
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94 | catch (Exception ex) {
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95 | return ex;
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96 | }
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97 | return null;
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98 | });
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99 | call.BeginInvoke(delegate(IAsyncResult result) {
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100 | Exception ex = call.EndInvoke(result);
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101 | if (ex != null) exceptionCallback(ex);
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102 | }, null);
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103 | }
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104 | #endregion
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105 |
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106 | #region Store
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107 | public static void Store(IHiveItem item, CancellationToken cancellationToken) {
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108 | if (item.Id == Guid.Empty) {
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109 | if (item is RefreshableHiveExperiment) {
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110 | HiveClient.Instance.UploadExperiment((RefreshableHiveExperiment)item, cancellationToken);
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111 | }
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112 | } else {
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113 | if (item is HiveExperiment)
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114 | ServiceLocator.Instance.CallHiveService(s => s.UpdateHiveExperiment((HiveExperiment)item));
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115 | }
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116 | }
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117 | public static void StoreAsync(Action<Exception> exceptionCallback, IHiveItem item, CancellationToken cancellationToken) {
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118 | var call = new Func<Exception>(delegate() {
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119 | try {
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120 | Store(item, cancellationToken);
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121 | }
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122 | catch (Exception ex) {
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123 | return ex;
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124 | }
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125 | return null;
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126 | });
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127 | call.BeginInvoke(delegate(IAsyncResult result) {
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128 | Exception ex = call.EndInvoke(result);
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129 | if (ex != null) exceptionCallback(ex);
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130 | }, null);
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131 | }
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132 | #endregion
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133 |
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134 | #region Delete
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135 | public static void Delete(IHiveItem item) {
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136 | if (item is HiveExperiment)
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137 | ServiceLocator.Instance.CallHiveService(s => s.DeleteHiveExperiment(item.Id));
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138 | if (item is RefreshableHiveExperiment)
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139 | ServiceLocator.Instance.CallHiveService(s => s.DeleteHiveExperiment(item.Id));
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140 | item.Id = Guid.Empty;
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141 | }
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142 | #endregion
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143 |
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144 | #region Events
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145 | public event EventHandler Refreshing;
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146 | private void OnRefreshing() {
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147 | EventHandler handler = Refreshing;
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148 | if (handler != null) handler(this, EventArgs.Empty);
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149 | }
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150 | public event EventHandler Refreshed;
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151 | private void OnRefreshed() {
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152 | var handler = Refreshed;
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153 | if (handler != null) handler(this, EventArgs.Empty);
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154 | }
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155 | public event EventHandler HiveExperimentsChanged;
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156 | private void OnHiveExperimentsChanged() {
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157 | var handler = HiveExperimentsChanged;
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158 | if (handler != null) handler(this, EventArgs.Empty);
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159 | }
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160 | #endregion
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161 |
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162 | public static void StartExperiment(Action<Exception> exceptionCallback, RefreshableHiveExperiment refreshableHiveExperiment, CancellationToken cancellationToken) {
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163 | HiveClient.StoreAsync(
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164 | new Action<Exception>((Exception ex) => {
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165 | refreshableHiveExperiment.HiveExperiment.ExecutionState = ExecutionState.Prepared;
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166 | exceptionCallback(ex);
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167 | }), refreshableHiveExperiment, cancellationToken);
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168 | refreshableHiveExperiment.HiveExperiment.ExecutionState = ExecutionState.Started;
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169 | }
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170 |
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171 | public static void PauseExperiment(HiveExperiment hiveExperiment) {
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172 | ServiceLocator.Instance.CallHiveService(service => {
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173 | foreach (HiveJob job in hiveExperiment.GetAllHiveJobs()) {
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174 | if (job.Job.State != JobState.Finished && job.Job.State != JobState.Aborted && job.Job.State != JobState.Failed)
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175 | service.PauseJob(job.Job.Id);
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176 | }
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177 | });
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178 | hiveExperiment.ExecutionState = ExecutionState.Paused;
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179 | }
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180 |
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181 | public static void StopExperiment(HiveExperiment hiveExperiment) {
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182 | ServiceLocator.Instance.CallHiveService(service => {
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183 | foreach (HiveJob job in hiveExperiment.GetAllHiveJobs()) {
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184 | if (job.Job.State != JobState.Finished && job.Job.State != JobState.Aborted && job.Job.State != JobState.Failed)
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185 | service.StopJob(job.Job.Id);
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186 | }
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187 | });
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188 | // execution state does not need to be set. it will be set to Stopped, when all jobs have been downloaded
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189 | }
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190 |
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191 | #region Upload Experiment
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192 | private Semaphore jobUploadSemaphore = new Semaphore(4, 4); // todo: take magic number into config
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193 | private static object jobCountLocker = new object();
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194 | private void UploadExperiment(RefreshableHiveExperiment refreshableHiveExperiment, CancellationToken cancellationToken) {
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195 | try {
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196 | refreshableHiveExperiment.HiveExperiment.Progress = new Progress("Connecting to server...");
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197 | refreshableHiveExperiment.HiveExperiment.IsProgressing = true;
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198 |
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199 | IEnumerable<string> resourceNames = ToResourceNameList(refreshableHiveExperiment.HiveExperiment.ResourceNames);
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200 | var resourceIds = new List<Guid>();
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201 | foreach (var resourceName in resourceNames) {
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202 | Guid resourceId = ServiceLocator.Instance.CallHiveService((s) => s.GetResourceId(resourceName));
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203 | if (resourceId == Guid.Empty) {
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204 | throw new ResourceNotFoundException(string.Format("Could not find the resource '{0}'", resourceName));
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205 | }
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206 | resourceIds.Add(resourceId);
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207 | }
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208 |
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209 | foreach (OptimizerHiveJob hiveJob in refreshableHiveExperiment.HiveExperiment.HiveJobs.OfType<OptimizerHiveJob>()) {
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210 | hiveJob.SetIndexInParentOptimizerList(null);
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211 | }
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212 |
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213 | // upload HiveExperiment
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214 | refreshableHiveExperiment.HiveExperiment.Progress.Status = "Uploading HiveExperiment...";
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215 | refreshableHiveExperiment.HiveExperiment.Id = ServiceLocator.Instance.CallHiveService((s) => s.AddHiveExperiment(refreshableHiveExperiment.HiveExperiment));
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216 | cancellationToken.ThrowIfCancellationRequested();
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217 |
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218 | int totalJobCount = refreshableHiveExperiment.HiveExperiment.GetAllHiveJobs().Count();
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219 | 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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220 | cancellationToken.ThrowIfCancellationRequested();
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221 |
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222 | // upload plugins
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223 | refreshableHiveExperiment.HiveExperiment.Progress.Status = "Uploading plugins...";
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224 | this.OnlinePlugins = ServiceLocator.Instance.CallHiveService((s) => s.GetPlugins());
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225 | this.AlreadyUploadedPlugins = new List<Plugin>();
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226 | Plugin configFilePlugin = ServiceLocator.Instance.CallHiveService((s) => UploadConfigurationFile(s, onlinePlugins));
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227 | this.alreadyUploadedPlugins.Add(configFilePlugin);
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228 | cancellationToken.ThrowIfCancellationRequested();
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229 |
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230 | if (refreshableHiveExperiment.RefreshAutomatically) refreshableHiveExperiment.StartResultPolling();
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231 |
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232 | // upload jobs
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233 | refreshableHiveExperiment.HiveExperiment.Progress.Status = "Uploading jobs...";
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234 |
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235 | var tasks = new List<Task>();
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236 | foreach (HiveJob hiveJob in refreshableHiveExperiment.HiveExperiment.HiveJobs) {
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237 | tasks.Add(Task.Factory.StartNew((hj) => {
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238 | UploadJobWithChildren(refreshableHiveExperiment.HiveExperiment.Progress, (HiveJob)hj, null, resourceIds, jobCount, totalJobCount, configFilePlugin.Id, refreshableHiveExperiment.HiveExperiment.Id, refreshableHiveExperiment.Log, refreshableHiveExperiment.HiveExperiment.IsPrivileged, cancellationToken);
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239 | }, hiveJob)
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240 | .ContinueWith((x) => refreshableHiveExperiment.Log.LogException(x.Exception), TaskContinuationOptions.OnlyOnFaulted));
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241 | }
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242 | Task.WaitAll(tasks.ToArray());
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243 | }
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244 | finally {
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245 | refreshableHiveExperiment.HiveExperiment.IsProgressing = false;
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246 | }
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247 | }
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248 |
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249 | /// <summary>
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250 | /// Uploads the local configuration file as plugin
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251 | /// </summary>
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252 | private static Plugin UploadConfigurationFile(IHiveService service, List<Plugin> onlinePlugins) {
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253 | string exeFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "HeuristicLab 3.3.exe");
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254 | string configFileName = Path.GetFileName(ConfigurationManager.OpenExeConfiguration(exeFilePath).FilePath);
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255 | string configFilePath = ConfigurationManager.OpenExeConfiguration(exeFilePath).FilePath;
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256 | byte[] hash;
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257 |
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258 | byte[] data = File.ReadAllBytes(configFilePath);
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259 | using (SHA1 sha1 = SHA1.Create()) {
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260 | hash = sha1.ComputeHash(data);
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261 | }
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262 |
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263 | Plugin configPlugin = new Plugin() { Name = "Configuration", Version = new Version(), Hash = hash };
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264 | PluginData configFile = new PluginData() { FileName = configFileName, Data = data };
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265 |
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266 | IEnumerable<Plugin> onlineConfig = onlinePlugins.Where(p => p.Hash.SequenceEqual(hash));
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267 |
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268 | if (onlineConfig.Count() > 0) {
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269 | return onlineConfig.First();
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270 | } else {
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271 | configPlugin.Id = service.AddPlugin(configPlugin, new List<PluginData> { configFile });
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272 | return configPlugin;
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273 | }
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274 | }
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275 |
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276 | /// <summary>
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277 | /// Uploads the given job and all its child-jobs while setting the proper parentJobId values for the childs
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278 | /// </summary>
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279 | /// <param name="parentHiveJob">shall be null if its the root job</param>
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280 | private void UploadJobWithChildren(IProgress progress, HiveJob hiveJob, HiveJob parentHiveJob, IEnumerable<Guid> groups, int[] jobCount, int totalJobCount, Guid configPluginId, Guid hiveExperimentId, ILog log, bool isPrivileged, CancellationToken cancellationToken) {
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281 | jobUploadSemaphore.WaitOne();
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282 | try {
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283 | cancellationToken.ThrowIfCancellationRequested();
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284 | lock (jobCountLocker) {
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285 | jobCount[0]++;
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286 | }
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287 | JobData jobData = null;
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288 | List<IPluginDescription> plugins = null;
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289 |
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290 | TryAndRepeat(() => { // workaround for persistence bug (thread-safe access to bitmaps) - remove later
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291 | if (hiveJob.ItemJob.ComputeInParallel && (hiveJob.ItemJob.Item is Optimization.Experiment || hiveJob.ItemJob.Item is Optimization.BatchRun)) {
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292 | hiveJob.Job.IsParentJob = true;
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293 | hiveJob.Job.FinishWhenChildJobsFinished = true;
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294 | jobData = hiveJob.GetAsJobData(true, out plugins);
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295 | } else {
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296 | hiveJob.Job.IsParentJob = false;
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297 | hiveJob.Job.FinishWhenChildJobsFinished = false;
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298 | jobData = hiveJob.GetAsJobData(false, out plugins);
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299 | }
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300 | }, 30, "Could not serialize job");
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301 | cancellationToken.ThrowIfCancellationRequested();
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302 |
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303 | TryAndRepeat(() => {
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304 | if (!cancellationToken.IsCancellationRequested) {
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305 | ServiceLocator.Instance.CallHiveService((s) => hiveJob.Job.PluginsNeededIds = PluginUtil.GetPluginDependencies(s, this.onlinePlugins, this.alreadyUploadedPlugins, plugins));
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306 | }
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307 | }, -1, "Failed to upload plugins");
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308 | cancellationToken.ThrowIfCancellationRequested();
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309 | hiveJob.Job.PluginsNeededIds.Add(configPluginId);
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310 | hiveJob.Job.HiveExperimentId = hiveExperimentId;
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311 | hiveJob.Job.IsPrivileged = isPrivileged;
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312 |
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313 | log.LogMessage(string.Format("Uploading job ({0} kb, {1} objects)", jobData.Data.Count() / 1024, hiveJob.ItemJob.GetObjectGraphObjects().Count()));
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314 | TryAndRepeat(() => {
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315 | if (!cancellationToken.IsCancellationRequested) {
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316 | if (parentHiveJob != null) {
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317 | hiveJob.Job.Id = ServiceLocator.Instance.CallHiveService((s) => s.AddChildJob(parentHiveJob.Job.Id, hiveJob.Job, jobData));
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318 | } else {
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319 | hiveJob.Job.Id = ServiceLocator.Instance.CallHiveService((s) => s.AddJob(hiveJob.Job, jobData, groups.ToList()));
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320 | }
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321 | }
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322 | }, 50, "Failed to add job", log);
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323 | cancellationToken.ThrowIfCancellationRequested();
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324 |
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325 | lock (jobCountLocker) {
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326 | progress.ProgressValue = (double)jobCount[0] / totalJobCount;
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327 | progress.Status = string.Format("Uploaded job ({0} of {1})", jobCount[0], totalJobCount);
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328 | }
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329 |
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330 | var tasks = new List<Task>();
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331 | foreach (HiveJob child in hiveJob.ChildHiveJobs) {
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332 | tasks.Add(Task.Factory.StartNew((tuple) => {
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333 | var arguments = (Tuple<HiveJob, HiveJob>)tuple;
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334 | UploadJobWithChildren(progress, arguments.Item1, arguments.Item2, groups, jobCount, totalJobCount, configPluginId, hiveExperimentId, log, isPrivileged, cancellationToken);
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335 | }, new Tuple<HiveJob, HiveJob>(child, hiveJob ))
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336 | .ContinueWith((x) => log.LogException(x.Exception), TaskContinuationOptions.OnlyOnFaulted));
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337 | }
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338 | Task.WaitAll(tasks.ToArray());
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339 | }
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340 | finally {
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341 | jobUploadSemaphore.Release();
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342 | }
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343 | }
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344 | #endregion
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345 |
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346 | #region Download Experiment
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347 | public static void LoadExperiment(HiveExperiment hiveExperiment) {
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348 | hiveExperiment.Progress = new Progress();
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349 | try {
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350 | hiveExperiment.IsProgressing = true;
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351 | int totalJobCount = 0;
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352 | IEnumerable<LightweightJob> allJobs;
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353 |
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354 | hiveExperiment.Progress.Status = "Connecting to Server...";
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355 | // fetch all Job objects to create the full tree of tree of HiveJob objects
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356 | hiveExperiment.Progress.Status = "Downloading list of jobs...";
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357 | allJobs = ServiceLocator.Instance.CallHiveService(s => s.GetLightweightExperimentJobs(hiveExperiment.Id));
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358 | totalJobCount = allJobs.Count();
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359 |
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360 | HiveJobDownloader downloader = new HiveJobDownloader(allJobs.Select(x => x.Id));
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361 | downloader.StartAsync();
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362 |
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363 | while (!downloader.IsFinished) {
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364 | hiveExperiment.Progress.ProgressValue = downloader.FinishedCount / (double)totalJobCount;
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365 | hiveExperiment.Progress.Status = string.Format("Downloading/deserializing jobs... ({0}/{1} finished)", downloader.FinishedCount, totalJobCount);
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366 | Thread.Sleep(500);
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367 |
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368 | if (downloader.IsFaulted) {
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369 | throw downloader.Exception;
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370 | }
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371 | }
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372 | IDictionary<Guid, HiveJob> allHiveJobs = downloader.Results;
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373 |
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374 | hiveExperiment.HiveJobs = new ItemCollection<HiveJob>(allHiveJobs.Values.Where(x => !x.Job.ParentJobId.HasValue));
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375 |
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376 | if (hiveExperiment.IsFinished()) {
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377 | hiveExperiment.ExecutionState = Core.ExecutionState.Stopped;
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378 | } else {
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379 | hiveExperiment.ExecutionState = Core.ExecutionState.Started;
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380 | }
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381 |
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382 | // build child-job tree
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383 | foreach (HiveJob hiveJob in hiveExperiment.HiveJobs) {
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384 | BuildHiveJobTree(hiveJob, allJobs, allHiveJobs);
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385 | }
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386 |
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387 | hiveExperiment.OnLoaded();
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388 | }
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389 | finally {
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390 | hiveExperiment.IsProgressing = false;
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391 | }
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392 | }
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393 |
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394 | private static void BuildHiveJobTree(HiveJob parentHiveJob, IEnumerable<LightweightJob> allJobs, IDictionary<Guid, HiveJob> allHiveJobs) {
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395 | IEnumerable<LightweightJob> childJobs = from job in allJobs
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396 | where job.ParentJobId.HasValue && job.ParentJobId.Value == parentHiveJob.Job.Id
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397 | orderby job.DateCreated ascending
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398 | select job;
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399 | foreach (LightweightJob job in childJobs) {
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400 | HiveJob childHiveJob = allHiveJobs[job.Id];
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401 | parentHiveJob.AddChildHiveJob(childHiveJob);
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402 | BuildHiveJobTree(childHiveJob, allJobs, allHiveJobs);
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403 | }
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404 | }
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405 | #endregion
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406 |
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407 | /// <summary>
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408 | /// Converts a string which can contain Ids separated by ';' to a enumerable
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409 | /// </summary>
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410 | private static IEnumerable<string> ToResourceNameList(string resourceNames) {
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411 | if (!string.IsNullOrEmpty(resourceNames)) {
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412 | return resourceNames.Split(';');
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413 | } else {
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414 | return new List<string>();
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415 | }
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416 | }
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417 |
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418 | public static ItemJob LoadItemJob(Guid jobId) {
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419 | JobData jobData = ServiceLocator.Instance.CallHiveService(s => s.GetJobData(jobId));
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420 | try {
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421 | return PersistenceUtil.Deserialize<ItemJob>(jobData.Data);
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422 | }
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423 | catch {
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424 | return null;
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425 | }
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426 | }
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427 |
|
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428 | /// <summary>
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429 | /// Executes the action. If it throws an exception it is repeated until repetition-count is reached.
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430 | /// If repetitions is -1, it is repeated infinitely.
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431 | /// </summary>
|
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432 | public static void TryAndRepeat(Action action, int repetitions, string errorMessage, ILog log = null) {
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433 | while (true) {
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434 | try { action(); return; }
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435 | catch (Exception e) {
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436 | if (repetitions == 0) throw new HiveException(errorMessage, e);
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437 | if (log != null) log.LogMessage(string.Format("{0}: {1} - will try again!", errorMessage, e.ToString()));
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438 | repetitions--;
|
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439 | }
|
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440 | }
|
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441 | }
|
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442 | }
|
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443 | }
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