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Implement Resource.FallBackResource

master
Harald Wolff 2019-09-02 09:59:09 +02:00
parent 943e889cf9
commit cef4e263b5
4 changed files with 24 additions and 15 deletions
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9
BaseResource.cs
View File

@ -40,7 +40,10 @@ namespace ln.http.resources
public override Resource GetResource(string name) public override Resource GetResource(string name)
{ {
return this.resources[name]; if (this.resources.ContainsKey(name))
return this.resources[name];
return GetFallBackResource();
} }
public override IEnumerable<Resource> GetResources() public override IEnumerable<Resource> GetResources()
@ -54,10 +57,6 @@ namespace ln.http.resources
} }
public virtual Resource CreateResource(string name) public virtual Resource CreateResource(string name)
{ {
throw new NotImplementedException(); throw new NotImplementedException();

2
DirectoryResource.cs
View File

@ -126,7 +126,7 @@ namespace ln.http.resources
return resource; return resource;
} }
throw new KeyNotFoundException(); return GetFallBackResource();
} }
public override IEnumerable<Resource> GetResources() public override IEnumerable<Resource> GetResources()

16
Resource.cs
View File

@ -10,6 +10,8 @@ namespace ln.http.resources
public Resource Container { get; protected set; } public Resource Container { get; protected set; }
public Resource DefaultResource { get; set; } public Resource DefaultResource { get; set; }
public Resource FallBackResource { get; set; }
public virtual bool HandlesDispatching => false; public virtual bool HandlesDispatching => false;
public Resource(String name) public Resource(String name)
@ -66,7 +68,8 @@ namespace ln.http.resources
foreach (Resource r in GetResources()) foreach (Resource r in GetResources())
if (r.Name.Equals(name)) if (r.Name.Equals(name))
return r; return r;
throw new KeyNotFoundException();
return GetFallBackResource();
} }
public abstract IEnumerable<Resource> GetResources(); public abstract IEnumerable<Resource> GetResources();
@ -75,6 +78,17 @@ namespace ln.http.resources
return this.GetResources().Where((x) => resourceType.IsInstanceOfType(x)); return this.GetResources().Where((x) => resourceType.IsInstanceOfType(x));
} }
public virtual Resource GetFallBackResource()
{
if (FallBackResource != null)
return FallBackResource;
if (Container != null)
return Container.GetFallBackResource();
throw new KeyNotFoundException();
}
public virtual HttpResponse GetResponse(HttpRequest httpRequest, Queue<string> pathStack) public virtual HttpResponse GetResponse(HttpRequest httpRequest, Queue<string> pathStack)
{ {
return GetResponse(httpRequest); return GetResponse(httpRequest);

12
ResourceApplication.cs
View File

@ -14,22 +14,18 @@ namespace ln.http.resources
public override HttpResponse GetResponse(HttpRequest httpRequest) public override HttpResponse GetResponse(HttpRequest httpRequest)
{ {
/* TODO: Implement Authentication here... */
Resource currentResource = RootResource; Resource currentResource = RootResource;
Queue<String> pathStack = new Queue<String>(httpRequest.URI.AbsolutePath.Split(new String[] { "/" }, StringSplitOptions.RemoveEmptyEntries)); Queue<String> pathStack = new Queue<String>(httpRequest.URI.AbsolutePath.Split(new String[] { "/" }, StringSplitOptions.RemoveEmptyEntries));
while ((pathStack.Count > 0) && (!currentResource.HandlesDispatching)) while ((pathStack.Count > 0) && (!currentResource.HandlesDispatching))
{ {
String next = pathStack.Dequeue(); String next = pathStack.Dequeue();
if (!currentResource.Contains(next)) if (!currentResource.Contains(next))
throw new KeyNotFoundException(); {
currentResource = currentResource.GetFallBackResource();
break;
}
currentResource = currentResource.GetResource(next); currentResource = currentResource.GetResource(next);
/* TODO: Implement Authorization hook here... */
} }
return currentResource.GetResponse(httpRequest,pathStack); return currentResource.GetResponse(httpRequest,pathStack);