@Override
  public int getClusterId() {
    return clusterId;
  }
Read the attribute identified by name from a remote resource identified by name. The intent of
this method is to return the value of an attribute on an MBean located in the remote
MBeanServer.

@param resourceName name/url of the remote resource from which to fetch the attribute value.
@param attributeName name of the attribute who's value will be fetched.
@return the value of the named attribute for the named resource (typically an MBean).
@throws MBeanAccessException if an MBean access error occurs.
geode-gfsh/src/main/java/org/apache/geode/management/internal/web/shell/HttpOperationInvoker.java