getEncoding
public java.lang.String getEncoding(org.eclipse.emf.common.util.URI uri)
Returns the encoding that should be used to read a resource
 from the given uri.
 If the uri is null, the default encoding for the language
 is returned.
 
 At runtime, the default encoding was either configured externally or
 it is obtained from the class Charset.
 In the UI environment, the encoding should usually be read from the workspace
 metadata.
- Specified by:
 
getEncoding in interface IEncodingProvider 
- Parameters:
 uri - the uri of the specific resource or null to obtain the default encoding.