code: private EventChannelStruct getEventChannelStruct(String channelName) {
          if (channel_map.containsKey(channelName)) {
              return channel_map.get(channelName);
          }
          //  Check with other TangoHosts using possibleTangoHosts as header
          int index = channelName.indexOf("//");
          if (index>0) {
              index = channelName.indexOf('/', index+2); //  "//".length()
              for (String possibleTangoHost : possibleTangoHosts) {
                  String key = possibleTangoHost + channelName.substring(index);
                  if (channel_map.containsKey(key))
                      return channel_map.get(key);
              }
          }
          return null;
      }
docs: ===============================================================