public Command createCommand(HttpServletRequest request,
Workspace workspace) {
String sourceNodeId =request.getParameter(Arguments.sourceNodeId.name());
String targetNodeId =request.getParameter(Arguments.targetNodeId.name());
String alignmentId =request.getParameter(Arguments.alignmentId.name());
ALTERNATIVE_LINKS_RANGE linksRange = ALTERNATIVE_LINKS_RANGE.valueOf(
request.getParameter(Arguments.linksRange.name()));
return new GetAlternativeLinksCommand(getNewId(workspace), sourceNodeId,
targetNodeId, alignmentId, linksRange);
}