public static IObservable<string> Search_DefferedConcatingTasks(string term)
{
var searchEngineA = new SearchEngineA();
var searchEngineB = new SearchEngineB();
var resultsA = Observable.Defer(() => searchEngineA.SearchAsync(term).ToObservable());
var resultsB = Observable.Defer(() => searchEngineB.SearchAsync(term).ToObservable());
return resultsA
.Concat(resultsB)
.SelectMany(x => x);
}
public static IObservable<string> Search_ConcatingTasks(string term)
{
var searchEngineA = new SearchEngineA();
var searchEngineB = new SearchEngineB();
IObservable<IEnumerable<string>> resultsA = searchEngineA.SearchAsync(term).ToObservable();
IObservable<IEnumerable<string>> resultsB = searchEngineB.SearchAsync(term).ToObservable();
return resultsA
.Concat(resultsB)
.SelectMany(x => x);
}
public static IObservable <string> Search_DefferedConcatingTasks(string term)
{
var searchEngineA = new SearchEngineA();
var searchEngineB = new SearchEngineB();
var resultsA = Observable.Defer(() => searchEngineA.SearchAsync(term).ToObservable());
var resultsB = Observable.Defer(() => searchEngineB.SearchAsync(term).ToObservable());
return(resultsA
.Concat(resultsB)
.SelectMany(x => x));
}
public static IObservable <string> Search_ConcatingTasks(string term)
{
var searchEngineA = new SearchEngineA();
var searchEngineB = new SearchEngineB();
IObservable <IEnumerable <string> > resultsA = searchEngineA.SearchAsync(term).ToObservable();
IObservable <IEnumerable <string> > resultsB = searchEngineB.SearchAsync(term).ToObservable();
return(resultsA
.Concat(resultsB)
.SelectMany(x => x));
}
public static IObservable <string> Search_WithAsyncAwait(string term)
{
return(Observable.Create <string>(async o =>
{
var searchEngineA = new SearchEngineA();
var searchEngineB = new SearchEngineB();
var resultsA = await searchEngineA.SearchAsync(term);
foreach (var result in resultsA)
{
o.OnNext(result);
}
var resultsB = await searchEngineB.SearchAsync(term);
foreach (var result in resultsB)
{
o.OnNext(result);
}
o.OnCompleted();
}));
}
public static IObservable<string> Search_WithAsyncAwait(string term)
{
return Observable.Create<string>(async o =>
{
var searchEngineA = new SearchEngineA();
var searchEngineB = new SearchEngineB();
var resultsA = await searchEngineA.SearchAsync(term);
foreach (var result in resultsA)
{
o.OnNext(result);
}
var resultsB = await searchEngineB.SearchAsync(term);
foreach (var result in resultsB)
{
o.OnNext(result);
}
o.OnCompleted();
});
}
public static IObservable <string> Search_WithCancellation(string term)
{
return(Observable.Create <string>(async(o, cancellationToken) =>
{
var searchEngineA = new SearchEngineA();
var searchEngineB = new SearchEngineB();
var resultsA = await searchEngineA.SearchAsync(term);
foreach (var result in resultsA)
{
cancellationToken.ThrowIfCancellationRequested();
o.OnNext(result);
}
cancellationToken.ThrowIfCancellationRequested();
var resultsB = await searchEngineB.SearchAsync(term);
foreach (var result in resultsB)
{
cancellationToken.ThrowIfCancellationRequested();
o.OnNext(result);
}
o.OnCompleted();
}));
}
public static IObservable<string> Search_WithCancellation(string term)
{
return Observable.Create<string>(async (o, cancellationToken) =>
{
var searchEngineA = new SearchEngineA();
var searchEngineB = new SearchEngineB();
var resultsA = await searchEngineA.SearchAsync(term);
foreach (var result in resultsA)
{
cancellationToken.ThrowIfCancellationRequested();
o.OnNext(result);
}
cancellationToken.ThrowIfCancellationRequested();
var resultsB = await searchEngineB.SearchAsync(term);
foreach (var result in resultsB)
{
cancellationToken.ThrowIfCancellationRequested();
o.OnNext(result);
}
o.OnCompleted();
});
}