anthonyalford / rollout-java Goto Github PK

This project is a read-only client for rollout, except that it uses Zookeeper as the backend store instead of Redis. At Librato, we plan to use this along side of the rollout-zk plugin.

Note: This is using an old version of Curator as the backend for Zookeeper because we use Storm 0.8 in production and have inherited it. It should be simple to update this to a newer Curator should anyone require it. Patches are welcome.

Add the dependency to your pom.xml:

<dependency>
    <groupId>com.librato.rollout</groupId>
    <artifactId>rollout</artifactId>
    <version>0.3</version>
</dependency>

First create your CuratorFramework and pass that into a new ZookeeperAdapter along with the Zookeeper path used in rollout, then pass that along to a new RolloutClient:

CuratorFramework framework = CuratorFrameworkFactory.builder()
        .connectString("localhost:2181")
        .retryPolicy(new RetryNTimes(1, 100))
        .build();
framework.start();

ZookeeperAdapter adapter = new ZookeeperAdapter(framework, "/rollout/users");
adapter.start(); // You must call start for this to connect to Zookeeper and set watches
RolloutClient client = new RolloutClient(adapter);

Now you may use the client to confirm feature flags for any long ID and List<String> of groups for a given user:

if (client.userFeatureActive("some_feature", myUser.getId(), myUser.getGroups()) {
    /* do something */
}

First, you must have Zookeeper running locally on localhost:2181.

mvn test