@Override
  protected String getPromptText() {
    String defaultPrompt = gfshConfig.getDefaultPrompt();
    String contextPath = "";
    String clusterString = "";

    if (getOperationInvoker() != null && isConnectedAndReady()) {
      int clusterId = getOperationInvoker().getClusterId();
      if (clusterId != OperationInvoker.CLUSTER_ID_WHEN_NOT_CONNECTED) {
        clusterString = "Cluster-" + clusterId + " ";
      }
    }

    defaultPrompt = MessageFormat.format(defaultPrompt, clusterString, contextPath);

    return ansiHandler.decorateString(defaultPrompt, ANSIStyle.YELLOW);
  }
@param operationInvoker the operationInvoker to set
geode-gfsh/src/main/java/org/apache/geode/management/internal/cli/shell/Gfsh.java