Halarious

halarious is a simple framework for serializing and deserializing Java-Classes to JSON following the HAL-specification.

• HAL is a simple format that gives a consistent and easy way to hyperlink between resources in your API.
• halarious is based on GSON, a lightweight library by Google.
• References and embedded fields can simply be marked with annotations. No further configuration nedded.

Check out our Website for more informations!

POJO with HAL-annotations:

public class ProductResource implements HalResource {
    @HalLink
    private String self;
    private String name;
    private int weight;
    private String description;
    @HalEmbedded
    private ManufacturerResource manufacturer;
 
    /** Getter/Setter... */
}
 
public class ManufacturerResource implements HalResource {
    @HalLink
    private String self;
    @HalLink
    private String homepage;
    private String name;
 
    /** Getter/Setter... */
}

This generates the following json:

{
    "name": "A product",
    "weight": 400,
    "description": "A great product",
    "_links": {
        "self": {
            "href": "/product/987"
        }
    },
    "_embedded": {
        "manufacturer": {
            "name": "http://hoverdonkey.com",
            "_links": {
                "self": {
                    "href": "/manufacturers/328764"
                },
                "homepage": {
                    "href": "Manufacturer Inc."
                }
            }
        }
    }
}

Licence

halarious is available under the Apache 2.0 Licence.