code: private synchronized void setChannelState(String channelName, RuntimeState state) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "setChannelState channelName=" + channelName + ", state=" + state.ordinal);
          }
          if (null != channelName) {
              ChannelContainer channelContainer = this.channelRunningMap.get(channelName);
              if (null != channelContainer) {
                  channelContainer.setState(state);
              }
          }
      }
docs: Set the channel state of a given channel.
  
  @param channelName
  @param state