Java Mash

Mash is a wrapper for a deeply nested map of maps. It simplifies navigating json structures, providing property like access to the data.

Building using maven

git clone http://github.com/coder36/mash.git
cd mash
mvn clean install

The mash-1.0.jar file will be built into the target folder.

Example

The url: http://pure-savannah-9942.herokuapp.com/bill.json serves up

    {
      "statement": {
        "generated": "2015-01-11",
        "period": {
          "from": "2015-01-26",
          "to": "2015-02-25"
        }
      },
      "total": 136.03
    }

Read in the json, then wrap in Mash:

    Mash json = new Mash( (Map) new RestTemplate().getForObject( "http://pure-savannah-9942.herokuapp.com/bill.json", Map.class ));

Accessing properties is as simple as:

    double total = (Double) json.get( "total" );
    String period_from = json.get_s( "statement.period.from" );
    String period_to = json.get_s( "statement.period.to" );

    //or

    Mash period = (Mash) json.get( "statement.period" );
    period_to = (String) period.get("to");

• A missing property will yield an empty string.

Credit

The idea for Mash came from Hashie - a ruby gem.