rodrigopr / jerkson

Jerkson fork powered by scala 2.10 reflection API

Scala 2.10 Compatible

This is a fork of Jerkson library compatible with Scala 2.10. Initial upgrade has been done by Piotr Gabryanczyk. The change to use scala 2.10 reflection api has been done by Rodrigo Ribeiro

Jerkson

Because I think you should use JSON.

Jerkson is a Scala wrapper for Jackson which brings Scala's ease-of-use to Jackson's features.

Requirements

• Scala 2.10
• Jackson 1.9.x

Setting Up Your Project

Go ahead and add Jerkson as a dependency:

<repositories>
  <repository>
    <id>repo.piotrga.com</id>
    <url>https://github.com/piotrga/piotrga.github.com/tree/master/maven-repo</url>
  </repository>
</repositories>

<dependencies>
  <dependency>
    <groupId>com.codahale</groupId>
    <artifactId>jerkson_2.10</artifactId>
    <version>0.7.0</version>
  </dependency>
</dependencies>

Parsing JSON

import com.codahale.jerkson.Json._

// Parse JSON arrays
parse[List[Int]]("[1,2,3]") //=> List(1,2,3)

// Parse JSON objects
parse[Map[String, Int]]("""{"one":1,"two":2}""") //=> Map("one"->1,"two"->2)

// Parse JSON objects as case classes
// (Parsing case classes isn't supported in the REPL.)
case class Person(id: Long, name: String)
parse[Person]("""{"id":1,"name":"Coda"}""") //=> Person(1,"Coda")

// Parse streaming arrays of things
for (person <- stream[Person](inputStream)) {
  println("New person: " + person)
}

For more examples, check out the specs.

Generating JSON

// Generate JSON arrays
generate(List(1, 2, 3)) //=> [1,2,3]

// Generate JSON objects
generate(Map("one"->1, "two"->"dos")) //=> {"one":1,"two":"dos"}

For more examples, check out the specs.

Handling snake_case Field Names

case class Person(firstName: String, lastName: String)

@JsonSnakeCase
case class Snake(firstName: String, lastName: String)

generate(Person("Coda", "Hale"))   //=> {"firstName": "Coda","lastName":"Hale"}
generate(Snake("Windey", "Mover")) //=> {"first_name": "Windey","last_name":"Mover"}

License

Copyright (c) 2010-2011 Coda Hale

Published under The MIT License, see LICENSE