[3262] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2010 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.Persistence.Default.CompositeSerializers.Storable;
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| 26 |
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| 27 | namespace HeuristicLab.Core {
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| 28 | [Item("Executable", "A base class for executables.")]
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| 29 | [StorableClass]
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| 30 | public abstract class Executable : Item, IExecutable {
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| 31 | public override Image ItemImage {
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| 32 | get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Event; }
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| 33 | }
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| 34 |
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| 35 | [Storable]
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| 36 | private ExecutionState executionState;
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| 37 | public ExecutionState ExecutionState {
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| 38 | get { return executionState; }
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| 39 | private set {
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| 40 | if (executionState != value) {
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| 41 | executionState = value;
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| 42 | OnExecutionStateChanged();
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| 43 | }
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| 44 | }
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| 45 | }
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| 46 |
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| 47 | [Storable]
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| 48 | private TimeSpan executionTime;
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| 49 | public TimeSpan ExecutionTime {
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| 50 | get { return executionTime; }
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| 51 | protected set {
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| 52 | executionTime = value;
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| 53 | OnExecutionTimeChanged();
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| 54 | }
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| 55 | }
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| 56 |
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| 57 | protected Executable() {
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| 58 | executionState = ExecutionState.Stopped;
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| 59 | executionTime = TimeSpan.Zero;
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| 60 | }
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| 61 |
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| 62 | public override IDeepCloneable Clone(Cloner cloner) {
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| 63 | Executable clone = (Executable)base.Clone(cloner);
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| 64 | clone.executionState = executionState;
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| 65 | clone.executionTime = executionTime;
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| 66 | return clone;
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| 67 | }
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| 68 |
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| 69 | public virtual void Prepare() {
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| 70 | if ((ExecutionState != ExecutionState.Prepared) && (ExecutionState != ExecutionState.Paused) && (ExecutionState != ExecutionState.Stopped))
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| 71 | throw new InvalidOperationException(string.Format("Prepare not allowed in execution state \"{0}\".", ExecutionState));
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| 72 | ExecutionTime = TimeSpan.Zero;
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| 73 | }
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| 74 | public virtual void Start() {
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| 75 | if ((ExecutionState != ExecutionState.Prepared) && (ExecutionState != ExecutionState.Paused))
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| 76 | throw new InvalidOperationException(string.Format("Start not allowed in execution state \"{0}\".", ExecutionState));
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| 77 | }
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| 78 | public virtual void Pause() {
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| 79 | if (ExecutionState != ExecutionState.Started)
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| 80 | throw new InvalidOperationException(string.Format("Pause not allowed in execution state \"{0}\".", ExecutionState));
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| 81 | }
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| 82 | public virtual void Stop() {
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| 83 | if ((ExecutionState != ExecutionState.Started) && (ExecutionState != ExecutionState.Paused))
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| 84 | throw new InvalidOperationException(string.Format("Stop not allowed in execution state \"{0}\".", ExecutionState));
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| 85 | }
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| 86 |
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| 87 | public event EventHandler ExecutionStateChanged;
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| 88 | protected virtual void OnExecutionStateChanged() {
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| 89 | EventHandler handler = ExecutionStateChanged;
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| 90 | if (handler != null) handler(this, EventArgs.Empty);
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| 91 | }
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| 92 | public event EventHandler ExecutionTimeChanged;
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| 93 | protected virtual void OnExecutionTimeChanged() {
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| 94 | EventHandler handler = ExecutionTimeChanged;
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| 95 | if (handler != null) handler(this, EventArgs.Empty);
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| 96 | }
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| 97 | public event EventHandler Prepared;
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| 98 | protected virtual void OnPrepared() {
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| 99 | ExecutionState = ExecutionState.Prepared;
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| 100 | EventHandler handler = Prepared;
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| 101 | if (handler != null) handler(this, EventArgs.Empty);
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| 102 | }
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| 103 | public event EventHandler Started;
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| 104 | protected virtual void OnStarted() {
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| 105 | ExecutionState = ExecutionState.Started;
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| 106 | EventHandler handler = Started;
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| 107 | if (handler != null) handler(this, EventArgs.Empty);
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| 108 | }
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| 109 | public event EventHandler Paused;
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| 110 | protected virtual void OnPaused() {
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| 111 | ExecutionState = ExecutionState.Paused;
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| 112 | EventHandler handler = Paused;
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| 113 | if (handler != null) handler(this, EventArgs.Empty);
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| 114 | }
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| 115 | public event EventHandler Stopped;
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| 116 | protected virtual void OnStopped() {
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| 117 | ExecutionState = ExecutionState.Stopped;
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| 118 | EventHandler handler = Stopped;
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| 119 | if (handler != null) handler(this, EventArgs.Empty);
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| 120 | }
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| 121 | public event EventHandler<EventArgs<Exception>> ExceptionOccurred;
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| 122 | protected virtual void OnExceptionOccurred(Exception exception) {
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| 123 | EventHandler<EventArgs<Exception>> handler = ExceptionOccurred;
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| 124 | if (handler != null) handler(this, new EventArgs<Exception>(exception));
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| 125 | }
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| 126 | }
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| 127 | }
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