christophercurrie / dropwizard-java8

Addon bundle for Dropwizard to support Java 8 features

Dropwizard Java 8 Bundle

An addon bundle and a set of classes for using Java 8 features like Optional<T> and the new Date/Time API (JSR-310) in a Dropwizard application.

Currently it supports Java 8 versions of dropwizard-auth and dropwizard-jdbi.

Usage

Just add Java8Bundle to your Application class as described in the manual in the Bundles paragraph.

This will add support for Optional<T> to Jersey and support for JSR-310 and Optional<T> to Jackson.

public class DemoApplication extends Application<DemoConfiguration> {
    // [...]
    @Override
    public void initialize(Bootstrap<HelloWorldConfiguration> bootstrap) {
        bootstrap.addBundle(new Java8Bundle());
        // [...]
    }
}

When using ResourceTestRule in unit tests, Java8 providers need to registered to ensure correct behaviour:

public static final ResourceTestRule resources = ResourceTestRule.builder()
    .addResource(new HelloWorldResource())
    .addProvider(OptionalMessageBodyWriter.class)
    .addProvider(OptionalParamFeature.class)
    .build();

Maven Artifacts

This project is available on Maven Central. To add it to your project simply add the following dependencies to your pom.xml:

<dependency>
  <groupId>io.dropwizard.modules</groupId>
  <artifactId>dropwizard-java8</artifactId>
  <version>0.8.0-1</version>
</dependency>

<dependency>
  <groupId>io.dropwizard.modules</groupId>
  <artifactId>dropwizard-java8-auth</artifactId>
  <version>0.8.0-1</version>
</dependency>

<dependency>
  <groupId>io.dropwizard.modules</groupId>
  <artifactId>dropwizard-java8-jdbi</artifactId>
  <version>0.8.0-1</version>
</dependency>

When using JSR-310 Dates with Hibernate, Jadira UserType Extend needs to be added:

<dependency>
    <groupId>org.jadira.usertype</groupId>
    <artifactId>usertype.extended</artifactId>
    <version>3.2.0.GA</version>
</dependency>

Dropwizard will auto register this in SessionFactoryFactory.

Support

Please file bug reports and feature requests in GitHub issues.

License

Copyright (c) 2014 Jochen Schalanda

This library is licensed under the Apache License, Version 2.0.

See http://www.apache.org/licenses/LICENSE-2.0.html or the LICENSE file in this repository for the full license text.