/
ObserverCollection.cs
64 lines (53 loc) · 1.51 KB
/
ObserverCollection.cs
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using System;
using System.Collections.Generic;
namespace Reactive
{
public class ObserverCollection<T> : IObservable<T>
{
protected IList<IObserver<T>> _observers;
public ObserverCollection()
{
_observers = new List<IObserver<T>>();
}
public virtual IDisposable Subscribe(IObserver<T> observer)
{
_observers.Add(observer);
return new Disposer(() => Remove(observer));
}
public void NotifyNext(T t)
{
foreach (IObserver<T> observer in _observers)
observer.OnNext(t);
}
public void NotifyDone()
{
foreach (IObserver<T> observer in _observers)
observer.OnDone();
}
public void NotifyError(Exception e)
{
foreach (IObserver<T> observer in _observers)
observer.OnError(e);
}
protected virtual void Remove(IObserver<T> observer)
{
_observers.Remove(observer);
}
public void Clear()
{
_observers.Clear();
}
protected class Disposer : IDisposable
{
private readonly Action _disposeAction;
public Disposer(Action disposeAction)
{
_disposeAction = disposeAction;
}
public void Dispose()
{
_disposeAction();
}
}
}
}