public string Localize(DekiResources resources) {
var _builder = new StringBuilder();
foreach(var item in _resourceChain) {
var resource = item as DekiResource;
if(resource == null) {
_builder.Append(item);
} else {
_builder.Append(resources.Localize(resource));
}
}
return _builder.ToString();
}
//--- Class Methods ---
// TODO: if we need more arguments, need to make the dispatcher smarter to pass in the desired arguments, so that the other handler
// signatures don't have to change
public static DreamMessage Map(Exception exception, DekiResources resources) {
var exceptionType = exception.GetType();
MethodInfo handler;
lock(_handlers) {
if(!_handlers.TryGetValue(exceptionType, out handler)) {
handler = (from method in typeof(DekiExceptionMapper).GetMethods(BindingFlags.NonPublic | BindingFlags.Static)
let parameters = method.GetParameters()
where parameters.Length == 2 && parameters[0].ParameterType.IsAssignableFrom(exceptionType)
let depth = GetInheritanceChain(parameters[0].ParameterType, 0)
orderby depth descending
select method).FirstOrDefault();
if(handler == null) {
return null;
}
_handlers[exceptionType] = handler;
}
}
return (DreamMessage)handler.Invoke(null, new object[] { exception, resources });
}
private static DreamMessage Map(MindTouchConflictException e, DekiResources resources) {
return DreamMessage.Conflict(resources.Localize(e.Resource));
}
private static DreamMessage Map(MindTouchFatalCallException e, DekiResources resources) {
return DreamMessage.InternalError(resources.Localize(e.Resource));
}
//--- generic ResourcedMindTouchException handlers ---
private static DreamMessage Map(MindTouchInvalidCallException e, DekiResources resources) {
return DreamMessage.BadRequest(resources.Localize(e.Resource));
}
private static DreamMessage Map(AttachmentPreviewBadImageFatalException e, DekiResources resources) {
return new DreamMessage(DreamStatus.InternalError, null, e.PreviewMimeType, e.PreviewImage);
}
//--- DekiDataException handlers ---
private static DreamMessage Map(ResourceExpectedHeadException e, DekiResources resources) {
return DreamMessage.Conflict(resources.Localize(DekiResources.RESOURCE_EXPECTED_HEAD_REVISION(e.HeadRevision, e.Revision)));
}
private static DreamMessage Map(MindTouchNotImplementedException e, DekiResources resources) {
return DreamMessage.NotImplemented(resources.Localize(e.Resource));
}
private static DreamMessage Map(TooManyResultsException e, DekiResources resources) {
return DreamMessage.Forbidden(resources.Localize(DekiResources.SITE_TOO_BIG_TO_GENERATE_SITEMAP()));
}
private static DreamMessage Map(HomePageNotFoundException e, DekiResources resources) {
return DreamMessage.InternalError(resources.Localize(DekiResources.UNABLE_TO_FIND_HOME_PAGE()));
}
private static DreamMessage Map(PageIdNotFoundException e, DekiResources resources) {
return DreamMessage.InternalError(resources.Localize(DekiResources.UNABLE_TO_RETRIEVE_PAGE_FOR_ID(e.PageId)));
}
private static DreamMessage Map(OldIdNotFoundException e, DekiResources resources) {
return DreamMessage.InternalError(resources.Localize(DekiResources.UNABLE_TO_FIND_OLD_PAGE_FOR_ID(e.OldId, e.TimeStamp)));
}
private static DreamMessage Map(CommentConcurrencyException e, DekiResources resources) {
return DreamMessage.Conflict(resources.Localize(DekiResources.COMMENT_CONCURRENCY_ERROR(e.PageId)));
}
private static DreamMessage Map(ResourceConcurrencyException e, DekiResources resources) {
return DreamMessage.Conflict(resources.Localize(DekiResources.PROPERTY_CONCURRENCY_ERROR(e.ResourceId)));
}
private static DreamMessage Map(ResourceRevisionOutOfRangeException e, DekiResources resources) {
return DreamMessage.Conflict(resources.Localize(DekiResources.RESOURCE_REVISION_OUT_OF_RANGE(e.Resource)));
}
private static DreamMessage Map(MindTouchForbiddenException e, DekiResources resources) {
return DreamMessage.Forbidden(resources.Localize(e.Resource));
}
private static DreamMessage Map(MindTouchAccessDeniedException e, DekiResources resources) {
return DreamMessage.AccessDenied(e.AuthRealm, resources.Localize(e.Resource));
}
//--- Misc exception handlers ---
private static DreamMessage Map(MindTouchInvalidOperationException e, DekiResources resources) {
return DreamMessage.BadRequest(e.Message);
}
private static DreamMessage Map(ExternalServiceResponseException e, DekiResources resources) {
// Note (arnec): the attached resource is just silently dropped here... doesn't seem right.
// also e.Resource in this case can be null, so beware.
return e.ExternalServiceResponse;
}
private static DreamMessage Map(DekiLicenseException e, DekiResources resources) {
return DreamMessage.BadRequest(e.Message);
}