private UrlSegment MatchUrlSegment(PomonaRequest request)
{
var match = new PomonaRouteResolver(Routes).Resolve(this, request.RelativePath);
if (match == null)
{
throw new ResourceNotFoundException("Resource not found.");
}
var finalSegmentMatch = match.Root.SelectedFinalMatch;
if (finalSegmentMatch == null)
{
// Route conflict resolution:
var node = match.Root.NextConflict;
while (node != null)
{
var actualResultType = node.ActualResultType;
// Reduce using input type difference
var validSelection = node.Children
.Where(x => x.Route.InputType.IsAssignableFrom(actualResultType))
.SingleOrDefaultIfMultiple();
if (validSelection == null)
{
throw new ResourceNotFoundException("No route alternative found due to conflict.");
}
node.SelectedChild = validSelection;
node = node.NextConflict;
}
finalSegmentMatch = match.Root.SelectedFinalMatch;
}
return(finalSegmentMatch);
}
public PomonaContext(UrlSegment node,
PomonaRequest request = null,
string expandedPaths = null,
bool executeQueryable = false,
bool handleException = true,
Type acceptType = null)
{
if (node == null)
throw new ArgumentNullException(nameof(node));
Node = node;
Request = request ?? new PomonaRequest(node.RelativePath, node.RelativePath);
ExpandedPaths = expandedPaths ?? GetExpandedPathsFromRequest(Request.Headers, Query);
ExecuteQueryable = executeQueryable;
HandleException = handleException;
AcceptType = acceptType;
}
public static PomonaResponse Get(this IPomonaSession session, string url)
{
// TODO: Move this to some other class.
string urlWithoutQueryPart = url;
DynamicDictionary query = null;
var queryStart = url.IndexOf('?');
if (queryStart != -1)
{
urlWithoutQueryPart = url.Substring(0, queryStart);
query = url.Substring(queryStart + 1).AsQueryDictionary();
}
var relativePath = session.GetInstance<IUriResolver>().ToRelativePath(urlWithoutQueryPart);
var req = new PomonaRequest(url, relativePath, query : query);
return session.Dispatch(req);
}
public PomonaContext(UrlSegment node,
PomonaRequest request = null,
string expandedPaths = null,
bool executeQueryable = false,
bool handleException = true,
Type acceptType = null)
{
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
Node = node;
Request = request ?? new PomonaRequest(node.RelativePath, node.RelativePath);
ExpandedPaths = expandedPaths ?? GetExpandedPathsFromRequest(Request.Headers, Query);
ExecuteQueryable = executeQueryable;
HandleException = handleException;
AcceptType = acceptType;
}
public static PomonaResponse Get(this IPomonaSession session, string url)
{
// TODO: Move this to some other class.
string urlWithoutQueryPart = url;
DynamicDictionary query = null;
var queryStart = url.IndexOf('?');
if (queryStart != -1)
{
urlWithoutQueryPart = url.Substring(0, queryStart);
query = url.Substring(queryStart + 1).AsQueryDictionary();
}
var relativePath = session.GetInstance <IUriResolver>().ToRelativePath(urlWithoutQueryPart);
var req = new PomonaRequest(url, relativePath, query: query);
return(session.Dispatch(req));
}
public virtual PomonaResponse Dispatch(PomonaRequest request)
{
var finalSegmentMatch = MatchUrlSegment(request);
return(Dispatch(new PomonaContext(finalSegmentMatch, request, executeQueryable: true)));
}
private PomonaResponse GetResource()
{
var pathNodes = GetPathNodes();
var rootNode = new DataSourceRootNode(TypeMapper, this.dataSource);
PathNode node = rootNode;
foreach (var pathPart in pathNodes.WalkTree(x => x.Next).Skip(1).Select(x => x.Value))
node = node.GetChildNode(pathPart);
var pomonaRequest = new PomonaRequest(node,
Context,
new PomonaJsonSerializerFactory(Context.GetSerializationContextProvider()));
if (!node.AllowedMethods.HasFlag(pomonaRequest.Method))
ThrowMethodNotAllowedForType(node.AllowedMethods);
var response = new DefaultRequestProcessorPipeline().Process(pomonaRequest);
if (response == null)
throw new PomonaException("Unable to find RequestProcessor able to handle request.");
return response;
}
protected virtual IPomonaRequestProcessor OnGetRequestProcessor(PomonaRequest request)
{
return null;
}
public IEnumerable<IPomonaRequestProcessor> GetRequestProcessors(PomonaRequest request)
{
var nodeProcessor = OnGetRequestProcessor(request);
var head = nodeProcessor != null
? nodeProcessor.WrapAsEnumerable()
: Enumerable.Empty<IPomonaRequestProcessor>();
return Parent != null ? head.Concat(Parent.GetRequestProcessors(request)) : head;
}
protected override IPomonaRequestProcessor OnGetRequestProcessor(PomonaRequest request)
{
return new DataSourceRequestProcessor(this.dataSource);
}
