code: public static void executeAzkabanProject(String sessionId, String azkabanProjectId,
        AzkabanProjectConfig azkabanProjectConfig)
        throws IOException {
      Map<String, String> params = Maps.newHashMap();
      params.put("ajax", "executeFlow");
      params.put("project", azkabanProjectConfig.getAzkabanProjectName());
      params.put("flow", azkabanProjectConfig.getAzkabanProjectFlowName());
  
      executePostRequest(preparePostRequest(azkabanProjectConfig.getAzkabanServerUrl() + "/executor", sessionId, params));
    }
docs: *
  Execute an existing Azkaban project.
  @param sessionId Session Id.
  @param azkabanProjectId Project Id.
  @param azkabanProjectConfig Azkaban Project Config.
  @throws IOException