public void Register(IDocumentService service)
{
if (service == null)
{
throw new ArgumentNullException(nameof(service));
}
if (service.SupportedSchemes == null || service.SupportedSchemes.Length == 0)
{
throw new ArgumentException("service", "one or more supported schemes required");
}
foreach (var scheme in service.SupportedSchemes)
{
var normalizedScheme = DocumentServiceManager.NormalizeScheme(scheme);
this.LogInfo("registering DocumentService for scheme '{0}'", normalizedScheme);
IDocumentService existedService;
if (_services.TryGetValue(normalizedScheme, out existedService))
{
this.LogWarning("a DocumentService of file type '{0}' is already existed, it will be replaced",
normalizedScheme);
}
_services[normalizedScheme] = service;
}
}
public IDocumentService GetDocumentService(string scheme)
{
scheme = DocumentServiceManager.NormalizeScheme(scheme);
IDocumentService service;
if (_services.TryGetValue(scheme, out service))
{
return(service);
}
return(null);
}
static DocumentServiceManager()
{
DocumentServiceManager.Instance = new DocumentServiceManager();
DocumentServiceManager.Instance.Register(InternalDocumentService.Instance);
}