java - 在Java中将带有数组的json字符串转换为平面键的最佳方法

Question

我有一个具有以下结构的 JSON 文件。

    [
   {
      "type":[
         "blog",
         "article",
         "pressrelease"
      ],
      "states":[
         "scheduled",
         "published"
      ],
      "roles":[
         "editor",
         "admin"
      ],
      "actions":[
         "review",
         "delete"
      ]
   },
   {
      "type":[
         "blog",
         "article",
         "pressrelease"
      ],
      "states":[
         "draft",
         "review"
      ],
      "roles":[
         "editor",
         "admin"
      ],
      "actions":[
         "submit",
         "delete"
      ]
   },
   {
      "type":[
         "blog",
         "article"
      ],
      "states":[
         "draft",
         "review"
      ],
      "roles":[
         "author"
      ],
      "actions":[
         "submit"
      ]
   },
   {
      "type":[
         "pressrelease"
      ],
      "states":[
         "draft",
         "review"
      ],
      "roles":[
         "pr",
         "prm"
      ],
      "actions":[
         "submit"
      ]
   },
   {
      "type":[
         "pressrelease"
      ],
      "states":[
         "scheduled",
         "published"
      ],
      "roles":[
         "prm"
      ],
      "actions":[
         "review",
         "delete"
      ]
   }
]

我需要编写一个方法，对于给定的场景，该方法将根据上面的 json 返回操作。

getActions(type, state, role){
}

我计划使用 GSON 将 json 转换为 Action 类对象列表，然后通过使用很少的 for 循环处理 json 来构建一个静态映射，其中键为 type.state.role，值作为操作列表。我的 map 将有

"blog.scheduled.editor" : ["review", "delete"]
"blog.scheduled.admin" : ["review", "delete"]
"blog.published.editor" : ["review", "delete"]

......

"pressrelease.draft.pr" : ["submit"]

因此，在 getActionas 方法中，我可以通过从输入值创建键来轻松返回操作。

我不确定这是否是正确的实现，或者是否有实用程序可以完成这项工作。

Answer 1

您的方向是正确的，但我建议使用树而不是 map ，因为它是此类数据的更自然的表示。

像这样构建你的树:

* [Root]
|___ blog
|   |___ published
|   |   |___ editor
|   |   |   |___ review
|   |   |   |___ delete
|   |   |
|   |   |___ admin
|   |   |   |___ review
|   |   |   |___ delete
|   |   |
|   |
|   |___ scheduled
|   |   |___ admin
|   |   |   |___ delete
|   |   |   |___ review
|   |   |
|   |   |___ editor
|   |   |   |___ review
|   |   |   |___ delete
|   |   |
|   |
|
|___ pressrelease
|   |___ scheduled
|   |   |___ admin
|   |   |   |___ delete
|   |   |   |___ review
(I spend far too much time on that ASCII tree ...)

然后，您可以从一个节点“向下”走三个节点并检查子节点。

这样，您还可以检查博客条目上可能存在哪些状态，并且(如果您以不同的方式重新排序或创建树)您可以检查管理员可以对文章执行哪些操作。