code: private String httpQuery() {
  
  		String response = null;
  		try {
  			URL restUrl = new URL( this.url );
  			HttpURLConnection conn = (HttpURLConnection) restUrl.openConnection();
  			response = query( conn );
  
  		} catch( Exception e ) {
  			this.logger.severe( "Cannot issue GET on URL " + this.url + ". Monitoring notification is discarded." );
  			Utils.logException(this.logger, e);
  		}
  
  		return response;
  	}
docs: Query a http URL.
  @return The query response