1186 lines
40 KiB
C#
1186 lines
40 KiB
C#
using AyCode.Core.Enums;
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using AyCode.Core.Extensions;
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using AyCode.Core.Helpers;
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using AyCode.Core.Interfaces;
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using AyCode.Services.SignalRs;
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using System.Collections;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using System.Diagnostics.CodeAnalysis;
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namespace AyCode.Services.Server.SignalRs
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{
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//public class TrackingItemGuid<TDataItem>(TrackingState trackingState, TDataItem currentValue, TDataItem? originalValue = null) : TrackingItem<TDataItem, Guid>(trackingState, currentValue, originalValue)
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// where TDataItem : class, IId<Guid> { }
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//public class TrackingItemInt<TDataItem>(TrackingState trackingState, TDataItem currentValue, TDataItem? originalValue = null) : TrackingItem<TDataItem, int>(trackingState, currentValue, originalValue)
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// where TDataItem : class, IId<int> {}
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public abstract class TrackingItem<TDataItem, TId>(TrackingState trackingState, TDataItem currentValue, TDataItem? originalValue = null) where TDataItem : class, IId<TId> where TId : struct
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{
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public TrackingState TrackingState { get; internal set; } = trackingState;
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public TDataItem CurrentValue { get; internal set; } = currentValue;
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public TDataItem? OriginalValue { get; init; } = originalValue;
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internal TrackingItem<TDataItem, TId> UpdateItem(TrackingState trackingState, TDataItem newValue) //where TTrackingItem : TrackingItem<TDataItem, TId>
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{
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CurrentValue = newValue;
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if (TrackingState != TrackingState.Add)
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TrackingState = trackingState;
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return (TrackingItem<TDataItem, TId>)this;
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}
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}
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//public class ChangeTrackingGuid<TDataItem> : ChangeTracking<TDataItem, Guid> /*: IEnumerable<TrackingItem<T>>*/ where TDataItem : class, IId<Guid>
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//{
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// protected override bool HasIdValue(TDataItem dataItem) => !dataItem.Id.IsNullOrEmpty();
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// protected override int FindIndex(TDataItem newValue) => TrackingItems.FindIndex(x => x.CurrentValue.Id == newValue.Id);
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// public override bool TryGetTrackingItem(Guid id, [NotNullWhen(true)] out TrackingItem<TDataItem, Guid>? trackingItem)
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// {
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// trackingItem = TrackingItems.FirstOrDefault(x => x.CurrentValue.Id == id);
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// return trackingItem != null;
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// }
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//}
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//public class ChangeTrackingInt<TDataItem> : ChangeTracking<TDataItem, int> /*: IEnumerable<TrackingItem<T>>*/ where TDataItem : class, IId<int>
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//{
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// protected override bool HasIdValue(TDataItem dataItem) => true;//dataItem.Id.IsNullOrEmpty();
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// protected override int FindIndex(TDataItem newValue) => TrackingItems.FindIndex(x => x.CurrentValue.Id == newValue.Id);
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// public override bool TryGetTrackingItem(int id, [NotNullWhen(true)] out TrackingItem<TDataItem, int>? trackingItem)
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// {
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// trackingItem = TrackingItems.FirstOrDefault(x => x.CurrentValue.Id == id);
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// return trackingItem != null;
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// }
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//}
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public class ChangeTracking<TDataItem, TId> /*: IEnumerable<TrackingItem<T>>*/where TDataItem : class, IId<TId> where TId : struct
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{
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private readonly EqualityComparer<TId> _equalityComparer = EqualityComparer<TId>.Default;
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private readonly List<TrackingItem<TDataItem, TId>> _trackingItems = []; //TODO: Dictionary... - J.
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//protected abstract bool HasIdValue(TDataItem dataItem);
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//protected abstract int FindIndex(TDataItem newValue);
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//public abstract bool TryGetTrackingItem(TId id, [NotNullWhen(true)] out TrackingItem<TDataItem, TId>? trackingItem);
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private bool HasIdValue(TDataItem dataItem) => _equalityComparer.Equals(dataItem.Id, default);//dataItem.Id.IsNullOrEmpty();
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public int FindIndex(TDataItem newValue) => _trackingItems.FindIndex(x => _equalityComparer.Equals(x.CurrentValue.Id, newValue.Id));
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public bool TryGetTrackingItem(TId id, [NotNullWhen(true)] out TrackingItem<TDataItem, TId>? trackingItem)
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{
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trackingItem = _trackingItems.FirstOrDefault(x => _equalityComparer.Equals(x.CurrentValue.Id, id));
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return trackingItem != null;
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}
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internal TrackingItem<TDataItem, TId>? AddTrackingItem(TrackingState trackingState, TDataItem newValue, TDataItem? originalValue = null)
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{
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if (!HasIdValue(newValue)) throw new ArgumentNullException(nameof(newValue), $@"currentValue.Id.IsNullOrEmpty()");
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var itemIndex = FindIndex(newValue); //_trackingItems.FindIndex(x => x.CurrentValue.Id == newValue.Id);
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TrackingItem<TDataItem, TId>? trackingItem = null;
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if (itemIndex > -1)
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{
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trackingItem = _trackingItems[itemIndex];
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if (trackingState == TrackingState.Remove && trackingItem.TrackingState == TrackingState.Add)
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{
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_trackingItems.RemoveAt(itemIndex);
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return null;
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}
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return trackingItem.UpdateItem(trackingState, newValue);
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}
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if (originalValue != null && Equals(newValue, originalValue))
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originalValue = TrackingItemHelpers.JsonClone(originalValue);
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//trackingItem = new TrackingItem<TDataItem>(trackingState, newValue, originalValue);
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trackingItem = (TrackingItem<TDataItem, TId>)Activator.CreateInstance(typeof(TrackingItem<TDataItem, TId>), trackingState, newValue, originalValue)!;
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_trackingItems.Add(trackingItem);
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return trackingItem;
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}
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public int Count => _trackingItems.Count;
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internal void Clear() => _trackingItems.Clear();
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public List<TrackingItem<TDataItem, TId>> ToList() => _trackingItems.ToList();
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internal void Remove(TrackingItem<TDataItem, TId> trackingItem) => _trackingItems.Remove(trackingItem);
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//public IEnumerator<TrackingItem<T>> GetEnumerator()
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//{
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// return _trackingItems.GetEnumerator();
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//}
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//IEnumerator IEnumerable.GetEnumerator()
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//{
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// return GetEnumerator();
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//}
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}
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//[Serializable]
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//[DebuggerDisplay("Count = {Count}")]
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//public abstract class AcSignalRDataSourceGuid<TDataItem, TIList> : AcSignalRDataSource<TDataItem, Guid, TIList>
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// where TDataItem : class, IId<Guid> where TIList : class, IList<TDataItem>
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//{
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// public AcSignalRDataSourceGuid(AcSignalRClientBase signalRClient, SignalRCrudTags signalRCrudTags, object[]? contextIds = null)
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// : base(signalRClient, signalRCrudTags, contextIds)
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// {
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// }
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// protected override bool HasIdValue(TDataItem dataItem) => !dataItem.Id.IsNullOrEmpty();
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// protected override bool IdEquals(Guid id1, Guid id2) => id1 == id2;
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// protected override int FindIndexInnerList(Guid id) => InnerList.FindIndex(x => x.Id == id);
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// protected override TDataItem? FirstOrDefaultInnerList(Guid id) => InnerList.FirstOrDefault(x => x.Id == id);
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//}
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//[Serializable]
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//[DebuggerDisplay("Count = {Count}")]
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//public abstract class AcSignalRDataSourceInt<TDataItem, TIList> : AcSignalRDataSource<TDataItem, int, TIList>
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// where TDataItem : class, IId<int> where TIList : class, IList<TDataItem>
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//{
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// public AcSignalRDataSourceInt(AcSignalRClientBase signalRClient, SignalRCrudTags signalRCrudTags, object[]? contextIds = null)
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// : base(signalRClient, signalRCrudTags, contextIds)
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// {
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// }
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// protected override bool HasIdValue(TDataItem dataItem) => true;
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// protected override bool IdEquals(int id1, int id2) => id1 == id2;
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// protected override int FindIndexInnerList(int id) => InnerList.FindIndex(x => x.Id == id);
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// protected override TDataItem? FirstOrDefaultInnerList(int id) => InnerList.FirstOrDefault(x => x.Id == id);
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//}
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[Serializable]
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[DebuggerDisplay("Count = {Count}")]
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public abstract class AcSignalRDataSource<TDataItem, TId, TIList> : IList<TDataItem>, IList, IReadOnlyList<TDataItem>
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where TDataItem : class, IId<TId> where TId : struct
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where TIList : class, IList<TDataItem>
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{
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private readonly object _syncRoot = new();
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private readonly EqualityComparer<TId> _equalityComparer = EqualityComparer<TId>.Default;
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protected TIList InnerList = Activator.CreateInstance<TIList>();// []; //TODO: Dictionary??? - J.
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protected readonly ChangeTracking<TDataItem, TId> TrackingItems = Activator.CreateInstance<ChangeTracking<TDataItem, TId>>();
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public object[]? ContextIds;
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public string? FilterText { get; set; }
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public AcSignalRClientBase SignalRClient;
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protected readonly SignalRCrudTags SignalRCrudTags;
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public Func<ItemChangedEventArgs<TDataItem>, Task>? OnDataSourceItemChanged;
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public Func<Task>? OnDataSourceLoaded;
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//protected abstract bool HasIdValue(TDataItem dataItem);
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//protected abstract bool IdEquals(TId id1, TId id2);
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//protected abstract int FindIndexInnerList(TId id);
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//protected abstract TDataItem? FirstOrDefaultInnerList(TId id);
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protected bool HasIdValue(TDataItem dataItem) => _equalityComparer.Equals(dataItem.Id, default);//dataItem.Id.IsNullOrEmpty();
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protected bool IdEquals(TId id1, TId id2) => _equalityComparer.Equals(id1, id2);
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protected int FindIndexInnerList(TId id) => InnerList.FindIndex(x => IdEquals(x.Id, id));
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protected TDataItem? FirstOrDefaultInnerList(TId id) => InnerList.FirstOrDefault(x => IdEquals(x.Id, id));
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public AcSignalRDataSource(AcSignalRClientBase signalRClient, SignalRCrudTags signalRCrudTags, object[]? contextIds = null)
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{
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//if (contextIds != null) (ContextIds = new List<object>()).AddRange(contextIds);
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ContextIds = contextIds;
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SignalRCrudTags = signalRCrudTags;
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SignalRClient = signalRClient;
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}
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public bool IsSynchronized => true;
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public object SyncRoot => _syncRoot;
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public bool IsFixedSize => false;
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public bool HasWorkingReferenceList { get; private set; }
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public void SetWorkingReferenceList(TIList workingIList)
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{
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if (workingIList == null!) return; //throw new ArgumentNullException(nameof(workingList));
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Monitor.Enter(_syncRoot);
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try
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{
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HasWorkingReferenceList = true;
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if (ReferenceEquals(InnerList, workingIList)) return;
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if (workingIList.Count == 0) AddRange(InnerList, workingIList);
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Clear(true);
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InnerList = workingIList;
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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}
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private object[]? GetContextParams()
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{
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var parameters = new List<object>();
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if (ContextIds != null) parameters.AddRange(ContextIds);
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if (FilterText != null) parameters.Add(FilterText); //Az empty string-et beletesszük, h legyen paraméter! - J.
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if (parameters.Count == 0) parameters = null;
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return parameters?.ToArray();
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}
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/// <summary>
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/// GetAllMessageTag
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/// </summary>
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/// <exception cref="ArgumentException"></exception>
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/// <exception cref="NullReferenceException"></exception>
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public async Task LoadDataSource(bool clearChangeTracking = true)
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{
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if (SignalRCrudTags.GetAllMessageTag == AcSignalRTags.None) throw new ArgumentException($"SignalRCrudTags.GetAllMessageTag == SignalRTags.None");
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var responseData = (await SignalRClient.GetAllAsync<TIList>(SignalRCrudTags.GetAllMessageTag, GetContextParams())) ?? throw new NullReferenceException();
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await LoadDataSource(responseData, false, false, clearChangeTracking);
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}
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public Task LoadDataSourceAsync(bool clearChangeTracking = true)
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{
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if (SignalRCrudTags.GetAllMessageTag == AcSignalRTags.None) throw new ArgumentException($"SignalRCrudTags.GetAllMessageTag == SignalRTags.None");
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return SignalRClient.GetAllAsync<TIList>(SignalRCrudTags.GetAllMessageTag, result=>
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{
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if (result.Status != SignalResponseStatus.Success || result.ResponseData == null)
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throw new NullReferenceException($"LoadDataSourceAsync; result.Status != SignalResponseStatus.Success || result.ResponseData == null; Status: {SignalResponseStatus.Success}");
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return LoadDataSource(result.ResponseData, false, false, clearChangeTracking);
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}, GetContextParams());
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}
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protected void AddRange(IEnumerable<TDataItem> source, TIList destination)
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{
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if (destination is List<TDataItem> dest) dest.AddRange(source);
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else
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{
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foreach (var dataItem in source)
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destination.Add(dataItem);
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}
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}
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public void AddRange(IEnumerable<TDataItem> source) => AddRange(source, InnerList);
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public async Task LoadDataSource(TIList fromSource, bool refreshDataFromDbAsync = false, bool setSourceToWorkingReferenceList = false, bool clearChangeTracking = true)
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{
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Monitor.Enter(_syncRoot);
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try
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{
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if (!ReferenceEquals(InnerList, fromSource))
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{
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Clear(clearChangeTracking);
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if (setSourceToWorkingReferenceList) SetWorkingReferenceList(fromSource);
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else AddRange(fromSource);
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}
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else if (clearChangeTracking) TrackingItems.Clear();
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if (refreshDataFromDbAsync) LoadDataSourceAsync(false).Forget();
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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if (OnDataSourceLoaded != null) await OnDataSourceLoaded.Invoke();
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}
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public async Task<TDataItem?> LoadItem(TId id)
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{
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if (SignalRCrudTags.GetItemMessageTag == AcSignalRTags.None) throw new ArgumentException($"SignalRCrudTags.GetItemMessageTag == SignalRTags.None");
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TDataItem? resultitem = null;
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Monitor.Enter(_syncRoot);
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try
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{
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resultitem = await SignalRClient.GetByIdAsync<TDataItem>(SignalRCrudTags.GetItemMessageTag, id);
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if (resultitem == null) return null;
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if (TryGetIndex(id, out var index)) InnerList[index] = resultitem;
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else InnerList.Add(resultitem);
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var eventArgs = new ItemChangedEventArgs<TDataItem>(resultitem, TrackingState.Get);
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if (OnDataSourceItemChanged != null) await OnDataSourceItemChanged.Invoke(eventArgs);
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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return resultitem;
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}
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/// <summary>
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/// set: UpdateMessageTag
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/// </summary>
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/// <param name="index"></param>
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/// <returns></returns>
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/// <exception cref="ArgumentOutOfRangeException"></exception>
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public TDataItem this[int index]
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{
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get
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{
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if ((uint)index >= (uint)Count) throw new ArgumentOutOfRangeException(nameof(index));
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Monitor.Enter(_syncRoot);
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try
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{
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return InnerList[index];
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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}
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set
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{
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Monitor.Enter(_syncRoot);
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try
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{
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UpdateUnsafe(index, value);
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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}
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}
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public void Add(TDataItem newValue)
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{
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if (!HasIdValue(newValue)) throw new ArgumentNullException(nameof(newValue), @"Add->newValue.Id.IsNullOrEmpty()");
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Monitor.Enter(_syncRoot);
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try
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{
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if (Contains(newValue))
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throw new ArgumentException($@"It already contains this Id! {newValue}", nameof(newValue));
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UnsafeAdd(newValue);
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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}
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/// <summary>
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/// AddMessageTag
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/// </summary>
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/// <param name="newValue"></param>
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/// <param name="autoSave"></param>
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/// <exception cref="ArgumentException"></exception>
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public async Task<TDataItem> Add(TDataItem newValue, bool autoSave)
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{
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Monitor.Enter(_syncRoot);
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try
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{
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Add(newValue);
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return autoSave ? await SaveItem(newValue, TrackingState.Add) : newValue;
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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}
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/// <summary>
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/// AddMessageTag or UpdateMessageTag
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/// </summary>
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/// <param name="newValue"></param>
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/// <param name="autoSave"></param>
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/// <returns></returns>
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public async Task<TDataItem> AddOrUpdate(TDataItem newValue, bool autoSave)
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{
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if (!HasIdValue(newValue)) throw new ArgumentNullException(nameof(newValue), @"AddOrUpdate->newValue.Id.IsNullOrEmpty()");
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Monitor.Enter(_syncRoot);
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try
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{
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var index = IndexOf(newValue);
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return index > -1 ? await Update(index, newValue, autoSave) : await Add(newValue, autoSave);
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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}
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//public void AddRange(IEnumerable<T> collection)
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//{
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// lock (_syncRoot)
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// {
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// }
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//}
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protected void UnsafeAdd(TDataItem newValue)
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{
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TrackingItems.AddTrackingItem(TrackingState.Add, newValue);
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InnerList.Add(newValue);
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}
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/// <summary>
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/// AddMessageTag
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/// </summary>
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/// <param name="index"></param>
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/// <param name="newValue"></param>
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/// <param name="autoSave"></param>
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/// <exception cref="ArgumentException"></exception>
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/// <exception cref="NullReferenceException"></exception>
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public void Insert(int index, TDataItem newValue)
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{
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if (!HasIdValue(newValue)) throw new ArgumentNullException(nameof(newValue), @"Insert->newValue.Id.IsNullOrEmpty()");
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Monitor.Enter(_syncRoot);
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try
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{
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if (Contains(newValue))
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throw new ArgumentException($@"Insert; It already contains this Id! {newValue}", nameof(newValue));
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TrackingItems.AddTrackingItem(TrackingState.Add, newValue);
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InnerList.Insert(index, newValue);
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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}
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public async Task<TDataItem> Insert(int index, TDataItem newValue, bool autoSave)
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{
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Monitor.Enter(_syncRoot);
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try
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{
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Insert(index, newValue);
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return autoSave ? await SaveItem(newValue, TrackingState.Add) : newValue;
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}
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finally
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{
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Monitor.Exit(_syncRoot);
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}
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}
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/// <summary>
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/// UpdateMessageTag
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/// </summary>
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/// <param name="newItem"></param>
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/// <param name="autoSave"></param>
|
|
public Task<TDataItem> Update(TDataItem newItem, bool autoSave) => Update(IndexOf(newItem), newItem, autoSave);
|
|
|
|
/// <summary>
|
|
/// UpdateMessageTag
|
|
/// </summary>
|
|
/// <param name="index"></param>
|
|
/// <param name="newValue"></param>
|
|
/// <param name="autoSave"></param>
|
|
/// /// <exception cref="ArgumentException"></exception>
|
|
/// /// <exception cref="NullReferenceException"></exception>
|
|
/// <exception cref="ArgumentNullException"></exception>
|
|
/// <exception cref="ArgumentOutOfRangeException"></exception>
|
|
public async Task<TDataItem> Update(int index, TDataItem newValue, bool autoSave)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
UpdateUnsafe(index, newValue);
|
|
|
|
return autoSave ? await SaveItem(newValue, TrackingState.Update) : newValue;
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
private void UpdateUnsafe(int index, TDataItem newValue)
|
|
{
|
|
if (default(TDataItem) != null && newValue == null) throw new NullReferenceException(nameof(newValue));
|
|
if (!HasIdValue(newValue)) throw new ArgumentNullException(nameof(newValue), @"UpdateUnsafe->newValue.Id.IsNullOrEmpty()");
|
|
if ((uint)index >= (uint)Count) throw new ArgumentOutOfRangeException(nameof(index));
|
|
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
var currentItem = InnerList[index];
|
|
|
|
if (!IdEquals(currentItem.Id, newValue.Id))
|
|
throw new ArgumentException($@"UpdateUnsafe; currentItem.Id != item.Id! {newValue}", nameof(newValue));
|
|
|
|
TrackingItems.AddTrackingItem(TrackingState.Update, newValue, currentItem);
|
|
InnerList[index] = newValue;
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// RemoveMessageTag
|
|
/// </summary>
|
|
/// <param name="item"></param>
|
|
/// <returns></returns>
|
|
public bool Remove(TDataItem item)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
var index = IndexOf(item);
|
|
|
|
if (index < 0) return false;
|
|
|
|
RemoveAt(index);
|
|
return true;
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public async Task<bool> Remove(TId id, bool autoSave)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
var item = FirstOrDefaultInnerList(id);
|
|
return item == null || await Remove(item, autoSave);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public async Task<bool> Remove(TDataItem item, bool autoSave)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
var result = Remove(item);
|
|
|
|
if (!autoSave || !result) return result;
|
|
|
|
await SaveItem(item, TrackingState.Remove);
|
|
return true;
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
/// <summary>
|
|
///
|
|
/// </summary>
|
|
/// <param name="id"></param>
|
|
/// <param name="item"></param>
|
|
/// <returns></returns>
|
|
public bool TryRemove(TId id, out TDataItem? item)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
return TryGetValue(id, out item) && Remove(item);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// RemoveMessageTag
|
|
/// </summary>
|
|
/// <param name="index"></param>
|
|
/// <exception cref="ArgumentException"></exception>
|
|
/// /// <exception cref="ArgumentNullException"></exception>
|
|
/// <exception cref="NullReferenceException"></exception>
|
|
public void RemoveAt(int index)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
var currentItem = InnerList[index];
|
|
if (!HasIdValue(currentItem)) throw new ArgumentNullException(nameof(currentItem), $@"RemoveAt->item.Id.IsNullOrEmpty(); index: {index}");
|
|
|
|
TrackingItems.AddTrackingItem(TrackingState.Remove, currentItem, currentItem);
|
|
InnerList.RemoveAt(index);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public async Task RemoveAt(int index, bool autoSave)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
var currentItem = InnerList[index];
|
|
RemoveAt(index);
|
|
|
|
if (autoSave)
|
|
{
|
|
await SaveItem(currentItem, TrackingState.Remove);
|
|
}
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
/// <summary>
|
|
///
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public List<TrackingItem<TDataItem, TId>> GetTrackingItems()
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
return TrackingItems.ToList();
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public void SetTrackingStateToUpdate(TDataItem item)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
if (TrackingItems.TryGetTrackingItem(item.Id, out var trackingItem))
|
|
{
|
|
if (trackingItem.TrackingState != TrackingState.Add)
|
|
trackingItem.TrackingState = TrackingState.Update;
|
|
|
|
return;
|
|
}
|
|
|
|
if (!TryGetValue(item.Id, out var originalItem)) return;
|
|
TrackingItems.AddTrackingItem(TrackingState.Update, item, originalItem);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
///
|
|
/// </summary>
|
|
/// <param name="id"></param>
|
|
/// <param name="trackingItem"></param>
|
|
/// <returns></returns>
|
|
public bool TryGetTrackingItem(TId id, [NotNullWhen(true)] out TrackingItem<TDataItem, TId>? trackingItem)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
return TrackingItems.TryGetTrackingItem(id, out trackingItem);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
|
|
}
|
|
|
|
/// <summary>
|
|
///
|
|
/// </summary>
|
|
/// <returns>Unsaved items</returns>
|
|
public async Task<List<TrackingItem<TDataItem, TId>>> SaveChanges()
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
foreach (var trackingItem in TrackingItems.ToList())
|
|
{
|
|
try
|
|
{
|
|
await SaveTrackingItemUnsafe(trackingItem);
|
|
}
|
|
catch(Exception ex)
|
|
{
|
|
TryRollbackItem(trackingItem.CurrentValue.Id, out _);
|
|
}
|
|
}
|
|
|
|
return TrackingItems.ToList();
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public async Task SaveChangesAsync()
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
foreach (var trackingItem in TrackingItems.ToList())
|
|
{
|
|
try
|
|
{
|
|
await SaveTrackingItemUnsafeAsync(trackingItem);
|
|
}
|
|
catch(Exception ex)
|
|
{
|
|
TryRollbackItem(trackingItem.CurrentValue.Id, out _);
|
|
}
|
|
}
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
///
|
|
/// </summary>
|
|
/// <param name="id"></param>
|
|
/// <returns></returns>
|
|
public async Task<TDataItem> SaveItem(TId id)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
TDataItem resultItem = null!;
|
|
|
|
if (TryGetTrackingItem(id, out var trackingItem))
|
|
resultItem = await SaveTrackingItemUnsafe(trackingItem);
|
|
|
|
if (resultItem == null) throw new NullReferenceException($"SaveItem; resultItem == null");
|
|
return resultItem;
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public async Task<TDataItem> SaveItem(TId id, TrackingState trackingState)
|
|
{
|
|
//Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
TDataItem resultItem = null!;
|
|
|
|
if (TryGetValue(id, out var item))
|
|
resultItem = await SaveItem(item, trackingState);
|
|
|
|
if (resultItem == null) throw new NullReferenceException($"SaveItem; resultItem == null");
|
|
return resultItem;
|
|
}
|
|
finally
|
|
{
|
|
//Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public Task<TDataItem> SaveItem(TDataItem item, TrackingState trackingState) => SaveItemUnsafe(item, trackingState);
|
|
|
|
protected Task<TDataItem> SaveTrackingItemUnsafe(TrackingItem<TDataItem, TId> trackingItem)
|
|
=> SaveItemUnsafe(trackingItem.CurrentValue, trackingItem.TrackingState);
|
|
|
|
protected Task SaveTrackingItemUnsafeAsync(TrackingItem<TDataItem, TId> trackingItem)
|
|
=> SaveItemUnsafeAsync(trackingItem.CurrentValue, trackingItem.TrackingState);
|
|
|
|
protected Task<TDataItem> SaveItemUnsafe(TDataItem item, TrackingState trackingState)
|
|
{
|
|
var messageTag = SignalRCrudTags.GetMessageTagByTrackingState(trackingState);
|
|
if (messageTag == AcSignalRTags.None) throw new ArgumentException($"SaveItemUnsafe; messageTag == SignalRTags.None");
|
|
|
|
return SignalRClient.PostDataAsync(messageTag, item).ContinueWith(x =>
|
|
{
|
|
if (x.Result == null)
|
|
{
|
|
if (TryRollbackItem(item.Id, out _)) return item;
|
|
|
|
throw new NullReferenceException($"SaveItemUnsafe; result == null");
|
|
}
|
|
|
|
ProcessSavedResponseItem(x.Result, trackingState);
|
|
return x.Result;
|
|
});
|
|
}
|
|
|
|
protected Task SaveItemUnsafeAsync(TDataItem item, TrackingState trackingState)
|
|
{
|
|
var messageTag = SignalRCrudTags.GetMessageTagByTrackingState(trackingState);
|
|
if (messageTag == AcSignalRTags.None) return Task.CompletedTask;
|
|
|
|
return SignalRClient.PostDataAsync(messageTag, item, response =>
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
|
|
try
|
|
{
|
|
if (response.Status != SignalResponseStatus.Success || response.ResponseData == null)
|
|
{
|
|
if (TryRollbackItem(item.Id, out _)) return Task.CompletedTask;
|
|
|
|
throw new NullReferenceException($"SaveItemUnsafeAsync; result.Status != SignalResponseStatus.Success || result.ResponseData == null; Status: {SignalResponseStatus.Success}");
|
|
}
|
|
|
|
return ProcessSavedResponseItem(response.ResponseData, trackingState);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
});
|
|
}
|
|
|
|
private Task ProcessSavedResponseItem(TDataItem? resultItem, TrackingState trackingState)
|
|
{
|
|
if (resultItem == null) return Task.CompletedTask;
|
|
|
|
if (TryGetTrackingItem(resultItem.Id, out var trackingItem))
|
|
TrackingItems.Remove(trackingItem);
|
|
|
|
if (TryGetIndex(resultItem.Id, out var index))
|
|
InnerList[index] = resultItem;
|
|
|
|
var eventArgs = new ItemChangedEventArgs<TDataItem>(resultItem, trackingState);
|
|
if (OnDataSourceItemChanged != null) return OnDataSourceItemChanged.Invoke(eventArgs);
|
|
|
|
return Task.CompletedTask;
|
|
}
|
|
|
|
protected void RollbackItemUnsafe(TrackingItem<TDataItem, TId> trackingItem)
|
|
{
|
|
if (TryGetIndex(trackingItem.CurrentValue.Id, out var index))
|
|
{
|
|
if (trackingItem.TrackingState == TrackingState.Add) InnerList.RemoveAt(index);
|
|
else InnerList[index] = trackingItem.OriginalValue!;
|
|
}
|
|
else if (trackingItem.TrackingState != TrackingState.Add)
|
|
InnerList.Add(trackingItem.OriginalValue!);
|
|
|
|
TrackingItems.Remove(trackingItem);
|
|
}
|
|
|
|
public bool TryRollbackItem(TId id, out TDataItem? originalValue)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
if (TryGetTrackingItem(id, out var trackingItem))
|
|
{
|
|
originalValue = trackingItem.OriginalValue;
|
|
|
|
RollbackItemUnsafe(trackingItem);
|
|
return true;
|
|
}
|
|
|
|
originalValue = null;
|
|
return false;
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public void Rollback()
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
foreach (var trackingItem in TrackingItems.ToList())
|
|
RollbackItemUnsafe(trackingItem);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public int Count
|
|
{
|
|
get
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
return InnerList.Count;
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
public void Clear() => Clear(true);
|
|
|
|
public void Clear(bool clearChangeTracking)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
if (clearChangeTracking) TrackingItems.Clear();
|
|
InnerList.Clear();
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public int IndexOf(TId id)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
return FindIndexInnerList(id);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
|
|
}
|
|
|
|
public int IndexOf(TDataItem item) => IndexOf(item.Id);
|
|
public bool TryGetIndex(TId id, out int index) => (index = IndexOf(id)) > -1;
|
|
|
|
public bool Contains(TDataItem item) => IndexOf(item) > -1;
|
|
|
|
public bool TryGetValue(TId id, [NotNullWhen(true)] out TDataItem? item)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
item = FirstOrDefaultInnerList(id);//InnerList.FirstOrDefault(x => x.Id == id);
|
|
return item != null;
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
}
|
|
|
|
public void CopyTo(TDataItem[] array) => CopyTo(array, 0);
|
|
|
|
public void CopyTo(TDataItem[] array, int arrayIndex)
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
InnerList.CopyTo(array, arrayIndex);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
|
|
}
|
|
|
|
public int BinarySearch(int index, int count, TDataItem item, IComparer<TDataItem>? comparer)
|
|
{
|
|
throw new NotImplementedException($"BinarySearch");
|
|
if (index < 0)
|
|
throw new ArgumentOutOfRangeException(nameof(index));
|
|
if (count < 0)
|
|
throw new ArgumentOutOfRangeException(nameof(count));
|
|
if (Count - index < count)
|
|
throw new ArgumentException("Invalid length");
|
|
|
|
//Monitor.Enter(_syncRoot);
|
|
//try
|
|
//{
|
|
// return InnerList.BinarySearch(index, count, item, comparer);
|
|
//}
|
|
//finally
|
|
//{
|
|
// Monitor.Exit(_syncRoot);
|
|
//}
|
|
}
|
|
|
|
public int BinarySearch(TDataItem item) => BinarySearch(0, Count, item, null);
|
|
public int BinarySearch(TDataItem item, IComparer<TDataItem>? comparer) => BinarySearch(0, Count, item, comparer);
|
|
|
|
public IEnumerator<TDataItem> GetEnumerator()
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
//return InnerList.ToList().GetEnumerator();
|
|
return InnerList.GetEnumerator();
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
|
|
}
|
|
|
|
public ReadOnlyCollection<TDataItem> AsReadOnly() => new(this);
|
|
private static bool IsCompatibleObject(object? value) => (value is TDataItem) || (value == null && default(TDataItem) == null);
|
|
|
|
|
|
#region IList, ICollection
|
|
|
|
bool IList.IsReadOnly => false;
|
|
|
|
object? IList.this[int index]
|
|
{
|
|
get => this[index];
|
|
set
|
|
{
|
|
if (default(TDataItem) != null && value == null) throw new NullReferenceException(nameof(value));
|
|
|
|
try
|
|
{
|
|
this[index] = (TDataItem)value!;
|
|
}
|
|
catch (InvalidCastException)
|
|
{
|
|
throw new InvalidCastException(nameof(value));
|
|
}
|
|
}
|
|
}
|
|
|
|
int IList.Add(object? item)
|
|
{
|
|
if (default(TDataItem) != null && item == null) throw new NullReferenceException(nameof(item));
|
|
|
|
try
|
|
{
|
|
Add((TDataItem)item!);
|
|
}
|
|
catch (InvalidCastException)
|
|
{
|
|
throw new InvalidCastException(nameof(item));
|
|
}
|
|
|
|
return Count - 1;
|
|
}
|
|
|
|
void IList.Clear() => Clear(true);
|
|
IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
|
|
bool IList.Contains(object? item) => IsCompatibleObject(item) && Contains((TDataItem)item!);
|
|
int IList.IndexOf(object? item) => (IsCompatibleObject(item)) ? IndexOf((TDataItem)item!) : -1;
|
|
|
|
void IList.Insert(int index, object? item)
|
|
{
|
|
if (default(TDataItem) != null && item == null) throw new NullReferenceException(nameof(item));
|
|
|
|
try
|
|
{
|
|
Insert(index, (TDataItem)item!);
|
|
}
|
|
catch (InvalidCastException)
|
|
{
|
|
throw new InvalidCastException(nameof(item));
|
|
}
|
|
}
|
|
|
|
void IList.Remove(object? item)
|
|
{
|
|
if (IsCompatibleObject(item)) Remove((TDataItem)item!);
|
|
}
|
|
|
|
void ICollection<TDataItem>.Clear() => Clear(true);
|
|
|
|
void ICollection.CopyTo(Array array, int arrayIndex)
|
|
{
|
|
if ((array != null) && (array.Rank != 1))
|
|
{
|
|
throw new ArgumentException();
|
|
}
|
|
|
|
try
|
|
{
|
|
Monitor.Enter(_syncRoot);
|
|
try
|
|
{
|
|
//TODO: _list.ToArray() - ez nem az igazi... - J.
|
|
Array.Copy(InnerList.ToArray(), 0, array!, arrayIndex, InnerList.Count);
|
|
}
|
|
finally
|
|
{
|
|
Monitor.Exit(_syncRoot);
|
|
}
|
|
|
|
}
|
|
catch (ArrayTypeMismatchException)
|
|
{
|
|
throw new ArrayTypeMismatchException();
|
|
}
|
|
}
|
|
|
|
int ICollection.Count => Count;
|
|
int ICollection<TDataItem>.Count => Count;
|
|
bool ICollection<TDataItem>.IsReadOnly => false;
|
|
void IList<TDataItem>.RemoveAt(int index) => RemoveAt(index);
|
|
int IReadOnlyCollection<TDataItem>.Count => Count;
|
|
|
|
#endregion IList, ICollection
|
|
}
|
|
|
|
public class ItemChangedEventArgs<T> where T : class
|
|
{
|
|
internal ItemChangedEventArgs(T item, TrackingState trackingState)
|
|
{
|
|
Item = item;
|
|
TrackingState = trackingState;
|
|
}
|
|
|
|
public T Item { get; }
|
|
public TrackingState TrackingState { get; }
|
|
}
|
|
}
|