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Rename JacksonHelper to JacksonUtilsHelper

JacksonHelper -> JacksonUtilsHelper

Set up flat to show/hide milliseconds for dates

Add ability to read Set from json

java Set<T> unique = JacksonUtils.readSet(json, T);

Add PrettyPrint option

This time json write use only single string format. We have to implement option to use pretty print format.

How to use ObjectMapper to read a JSON file having the content map of maps?

I have a JSON file that has the following structure:

Map<Enum1, Map<Enum2, Map<Enum3, Map<Enum4, Map<Enum5, Map<String, String>>>>>>

How do I read the content of the file into the above map structure?

I have tried the following, but Eclipse gave an error The type Map is not generic; it cannot be parameterized with arguments <String, String>:

ObjectMapper mapper = new ObjectMapper();

TypeReference<Map<Enum1, Map<Enum2, Map<Enum3, Map<Enum4, Map<Enum5, Map<String, String>>>>>>>
        typeRef =
        new TypeReference<Map<Enum1, Map<Enum2, Map<Enum3, Map<Enum4, Map<Enum5, Map<String, String>>>>>>>() {
        };

mapper.readValue(file, typeRef);

The content of the file looks like this:

{
  "enum1": {
    "enum2": {
      "enum3": {
        "enum4-1": {
          "enum5-1": {
            "example1": "example1 string",
            "example2": "example2 string"
          },
          "enum5-2": {
            "example1": "example1 string",
            "example2": "example2 string"
          }
        },
        "enum4-2": {
          "enum5-1": {
            "example1": "example1 string",
            "example2": "example2 string"
          },
          "enum5-2": {
            "example1": "example1 string",
            "example2": "example2 string"
          }
        }
        ....
      }
      .....
    }
  }