1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2013 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.Drawing;
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24 | using HeuristicLab.Common;
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25 | using HeuristicLab.Core;
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26 | using HeuristicLab.Hive;
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27 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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28 |
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29 | namespace HeuristicLab.Clients.Hive {
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30 | [Item("Item Task", "Represents a executable hive task which contains a HeuristicLab Item.")]
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31 | [StorableClass]
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32 | public abstract class ItemTask : NamedItem, ITask {
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33 | public virtual bool IsParallelizable {
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34 | get { return true; }
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35 | }
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36 |
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37 | [Storable]
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38 | protected IItem item;
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39 | public IItem Item {
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40 | get { return item; }
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41 | set {
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42 | if (value != item) {
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43 | if (item != null) DeregisterItemEvents();
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44 | item = value;
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45 | if (item != null) RegisterItemEvents();
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46 | OnItemChanged();
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47 | }
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48 | }
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49 | }
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50 |
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51 | [Storable]
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52 | protected bool computeInParallel;
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53 | public bool ComputeInParallel {
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54 | get { return computeInParallel; }
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55 | set {
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56 | if (computeInParallel != value) {
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57 | computeInParallel = value;
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58 | OnComputeInParallelChanged();
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59 | }
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60 | }
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61 | }
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62 |
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63 | #region Constructors and Cloning
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64 | public ItemTask() { }
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65 |
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66 | [StorableConstructor]
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67 | protected ItemTask(bool deserializing) { }
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68 | protected ItemTask(ItemTask original, Cloner cloner)
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69 | : base(original, cloner) {
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70 | this.ComputeInParallel = original.ComputeInParallel;
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71 | this.Item = cloner.Clone(original.Item);
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72 | }
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73 |
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74 | [StorableHook(HookType.AfterDeserialization)]
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75 | protected virtual void AfterDeserialization() {
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76 | RegisterItemEvents();
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77 | }
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78 | #endregion
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79 |
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80 | #region Item Events
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81 | protected virtual void RegisterItemEvents() {
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82 | item.ItemImageChanged += new EventHandler(item_ItemImageChanged);
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83 | item.ToStringChanged += new EventHandler(item_ToStringChanged);
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84 | }
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85 |
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86 | protected virtual void DeregisterItemEvents() {
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87 | item.ItemImageChanged -= new EventHandler(item_ItemImageChanged);
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88 | item.ToStringChanged -= new EventHandler(item_ToStringChanged);
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89 | }
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90 |
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91 | protected void item_ToStringChanged(object sender, EventArgs e) {
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92 | this.OnToStringChanged();
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93 | }
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94 | protected void item_ItemImageChanged(object sender, EventArgs e) {
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95 | this.OnItemImageChanged();
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96 | }
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97 | #endregion
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98 |
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99 | #region ITask Members
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100 | public abstract ExecutionState ExecutionState { get; }
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101 |
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102 | public abstract TimeSpan ExecutionTime { get; }
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103 |
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104 | public abstract void Prepare();
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105 |
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106 | public abstract void Start();
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107 |
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108 | public abstract void Pause();
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109 |
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110 | public abstract void Stop();
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111 |
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112 | public event EventHandler TaskStarted;
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113 | protected virtual void OnTaskStarted() {
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114 | EventHandler handler = TaskStarted;
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115 | if (handler != null) handler(this, EventArgs.Empty);
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116 | }
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117 |
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118 | public event EventHandler TaskStopped;
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119 | protected virtual void OnTaskStopped() {
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120 | EventHandler handler = TaskStopped;
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121 | if (handler != null) handler(this, EventArgs.Empty);
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122 | }
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123 |
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124 | public event EventHandler TaskPaused;
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125 | protected virtual void OnTaskPaused() {
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126 | EventHandler handler = TaskPaused;
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127 | if (handler != null) handler(this, EventArgs.Empty);
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128 | }
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129 |
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130 | public event EventHandler TaskFailed;
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131 | protected virtual void OnTaskFailed(EventArgs<Exception> e) {
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132 | EventHandler handler = TaskFailed;
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133 | if (handler != null) handler(this, e);
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134 | }
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135 |
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136 | public event EventHandler ComputeInParallelChanged;
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137 | protected virtual void OnComputeInParallelChanged() {
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138 | EventHandler handler = ComputeInParallelChanged;
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139 | if (handler != null) handler(this, EventArgs.Empty);
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140 | }
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141 |
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142 | public event EventHandler ItemChanged;
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143 | protected virtual void OnItemChanged() {
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144 | EventHandler handler = ItemChanged;
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145 | if (handler != null) handler(this, EventArgs.Empty);
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146 | }
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147 | #endregion
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148 |
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149 | #region INamedItem Members
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150 | public abstract new bool CanChangeDescription { get; }
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151 |
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152 | public abstract new bool CanChangeName { get; }
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153 |
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154 | public abstract new string Description { get; set; }
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155 |
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156 | public abstract new string Name { get; set; }
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157 | #endregion
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158 |
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159 | #region Events
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160 | public event EventHandler ExecutionTimeChanged;
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161 | protected virtual void OnExecutionTimeChanged() {
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162 | EventHandler handler = ExecutionTimeChanged;
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163 | if (handler != null) handler(this, EventArgs.Empty);
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164 | }
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165 | public event EventHandler ExecutionStateChanged;
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166 | protected virtual void OnExecutionStateChanged() {
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167 | EventHandler handler = ExecutionStateChanged;
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168 | if (handler != null) handler(this, EventArgs.Empty);
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169 | }
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170 | #endregion
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171 |
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172 | #region IItem Members
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173 | public override string ItemDescription {
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174 | get {
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175 | if (item == null)
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176 | return string.Empty;
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177 | else
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178 | return item.ItemDescription;
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179 | }
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180 | }
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181 |
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182 | public override Image ItemImage {
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183 | get {
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184 | if (item == null)
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185 | return HeuristicLab.Common.Resources.VSImageLibrary.Class;
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186 | else
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187 | return item.ItemImage;
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188 | }
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189 | }
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190 |
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191 | public override string ItemName {
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192 | get {
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193 | if (item == null)
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194 | return string.Empty;
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195 | else
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196 | return item.ItemName;
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197 | }
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198 | }
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199 |
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200 | public virtual new Version ItemVersion {
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201 | get {
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202 | if (item == null)
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203 | return ItemAttribute.GetVersion(this.GetType());
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204 | else
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205 | return item.ItemVersion;
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206 | }
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207 | }
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208 | #endregion
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209 |
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210 | public override string ToString() {
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211 | return Name;
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212 | }
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213 | }
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214 | }
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