#region License Information /* HeuristicLab * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.Drawing; using HeuristicLab.Common; using HeuristicLab.Core; using HeuristicLab.Hive; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; namespace HeuristicLab.Clients.Hive { [Item("Item Task", "Represents a executable hive task which contains a HeuristicLab Item.")] [StorableClass] public abstract class ItemTask : NamedItem, ITask { public virtual bool IsParallelizable { get { return true; } } [Storable] protected IItem item; public IItem Item { get { return item; } set { if (value != item) { if (item != null) DeregisterItemEvents(); item = value; if (item != null) RegisterItemEvents(); OnItemChanged(); } } } [Storable] protected bool computeInParallel; public bool ComputeInParallel { get { return computeInParallel; } set { if (computeInParallel != value) { computeInParallel = value; OnComputeInParallelChanged(); } } } #region Constructors and Cloning public ItemTask() { } [StorableConstructor] protected ItemTask(bool deserializing) { } protected ItemTask(ItemTask original, Cloner cloner) : base(original, cloner) { this.ComputeInParallel = original.ComputeInParallel; this.Item = cloner.Clone(original.Item); } [StorableHook(HookType.AfterDeserialization)] protected virtual void AfterDeserialization() { RegisterItemEvents(); } #endregion #region Item Events protected virtual void RegisterItemEvents() { item.ItemImageChanged += new EventHandler(item_ItemImageChanged); item.ToStringChanged += new EventHandler(item_ToStringChanged); } protected virtual void DeregisterItemEvents() { item.ItemImageChanged -= new EventHandler(item_ItemImageChanged); item.ToStringChanged -= new EventHandler(item_ToStringChanged); } protected void item_ToStringChanged(object sender, EventArgs e) { this.OnToStringChanged(); } protected void item_ItemImageChanged(object sender, EventArgs e) { this.OnItemImageChanged(); } #endregion #region ITask Members public abstract ExecutionState ExecutionState { get; } public abstract TimeSpan ExecutionTime { get; } public abstract void Prepare(); public abstract void Start(); public abstract void Pause(); public abstract void Stop(); public event EventHandler TaskStarted; protected virtual void OnTaskStarted() { EventHandler handler = TaskStarted; if (handler != null) handler(this, EventArgs.Empty); } public event EventHandler TaskStopped; protected virtual void OnTaskStopped() { EventHandler handler = TaskStopped; if (handler != null) handler(this, EventArgs.Empty); } public event EventHandler TaskPaused; protected virtual void OnTaskPaused() { EventHandler handler = TaskPaused; if (handler != null) handler(this, EventArgs.Empty); } public event EventHandler TaskFailed; protected virtual void OnTaskFailed(EventArgs e) { EventHandler handler = TaskFailed; if (handler != null) handler(this, e); } public event EventHandler ComputeInParallelChanged; protected virtual void OnComputeInParallelChanged() { EventHandler handler = ComputeInParallelChanged; if (handler != null) handler(this, EventArgs.Empty); } public event EventHandler ItemChanged; protected virtual void OnItemChanged() { EventHandler handler = ItemChanged; if (handler != null) handler(this, EventArgs.Empty); } #endregion #region INamedItem Members public abstract new bool CanChangeDescription { get; } public abstract new bool CanChangeName { get; } public abstract new string Description { get; set; } public abstract new string Name { get; set; } #endregion #region Events public event EventHandler ExecutionTimeChanged; protected virtual void OnExecutionTimeChanged() { EventHandler handler = ExecutionTimeChanged; if (handler != null) handler(this, EventArgs.Empty); } public event EventHandler ExecutionStateChanged; protected virtual void OnExecutionStateChanged() { EventHandler handler = ExecutionStateChanged; if (handler != null) handler(this, EventArgs.Empty); } #endregion #region IItem Members public virtual new string ItemDescription { get { return item.ItemDescription; } } public virtual new Image ItemImage { get { return item.ItemImage; } } public virtual new string ItemName { get { return item.ItemName; } } public virtual new Version ItemVersion { get { return item.ItemVersion; } } #endregion public override string ToString() { return Name; } } }