/// <summary>
/// Registers a writer as the default RDF Dataset Writer for all the given MIME types and updates relevant definitions to include the MIME types and file extensions
/// </summary>
/// <param name="writer">RDF Dataset Writer</param>
/// <param name="mimeTypes">MIME Types</param>
/// <param name="fileExtensions">File Extensions</param>
public static void RegisterWriter(IStoreWriter writer, IEnumerable<String> mimeTypes, IEnumerable<String> fileExtensions)
{
if (!_init) Init();
if (!mimeTypes.Any()) throw new RdfException("Cannot register a writer without specifying at least 1 MIME Type");
//Get any existing defintions that are to be altered
IEnumerable<MimeTypeDefinition> existing = GetDefinitions(mimeTypes);
foreach (MimeTypeDefinition def in existing)
{
foreach (String type in mimeTypes)
{
def.AddMimeType(type);
}
foreach (String ext in fileExtensions)
{
def.AddFileExtension(ext);
}
def.RdfDatasetWriterType = writer.GetType();
}
//Create any new defintions
IEnumerable<String> newTypes = mimeTypes.Where(t => !GetDefinitions(t).Any());
if (newTypes.Any())
{
MimeTypeDefinition newDef = new MimeTypeDefinition(String.Empty, newTypes, fileExtensions);
newDef.RdfDatasetWriterType = writer.GetType();
AddDefinition(newDef);
}
}
/// <summary>
/// Selects the appropriate File Extension for the given Store Writer
/// </summary>
/// <param name="writer">Store Writer</param>
/// <returns></returns>
public static String GetFileExtension(IStoreWriter writer)
{
if (!_init) Init();
Type requiredType = writer.GetType();
foreach (MimeTypeDefinition definition in MimeTypesHelper.Definitions)
{
if (requiredType.Equals(definition.RdfDatasetWriterType))
{
return definition.CanonicalFileExtension;
}
}
throw new RdfException("Unable to determine the appropriate File Extension for the Store Writer '" + writer.GetType().ToString() + "'");
}
