Loading an existing XML Schema model is relatively simple if you use the default platform protocol resolver "platform:/resource". You may want to implement an org.eclipse.emf.ecore.resource.URIConverter to resolve resources that might not be found using the default platform protocol resolver. Some of these could include XML Schema files located in a plug-in directory or somewhere on the World Wide Web.

The following listing shows how to load any XML Schema file within the Eclipse workspace using the default platform protocol resolver.

public XSDSchema loadXSDSchema(IFile xsdFile)
{
  try
  {
    //Create a resource set to manage the resources
    ResourceSet resourceSet = new ResourceSetImpl();

    //Let the resource set load the resource from the given uri
    XSDResourceImpl xsdResource = (XSDResourceImpl) resourceSet.getResource(URI.
      createURI("platform:/resource" + xsdFile.getFullPath()), true);

    //The contents of the resource is the root XSDSchema object
    XSDSchema xsdSchema = xsdResource.getSchema();

    return xsdSchema;
  }
  catch (Exception e)
  {
    e.printStackTrace();
  }

  return null;
}