[

  {
    "paramName": "fu",
    "paramLongName" : "fileURL",
    "paramDescription" : "the url of the file to download",
    "paramRequired" : true
  },
  {
    "paramName": "hp",
    "paramLongName" : "hdfsPath",
    "paramDescription" : "where to save the file",
    "paramRequired" : true
  },
  {
    "paramName": "hnn",
    "paramLongName" : "hdfsNameNode",
    "paramDescription" : "the name node",
    "paramRequired" : true
  }
]