@Override
	protected String getServiceName(final String methodName) {
		if (methodName != null) {
			int ndx = methodName.indexOf(this.separator);
			if (ndx > 0) {
				return methodName.substring(0, ndx);
			}
		}
		return methodName;
	}
@ Override protected String getServiceName ( final String methodName ) { if ( methodName != null ) { int ndx = methodName . indexOf ( this . separator ) ; if ( ndx > 0 ) { return methodName . substring ( 0 , ndx ) ; } } return methodName ; }
Get the service name from the methodNode.  JSON-RPC methods with the form
Service.method will result in "Service" being returned in this case.

@param methodName method name
@return the name of the service, or <code>null</code>