This repo is no longer actively maintained. While it should continue to work and there are no major known bugs, we will not be improving ffwd or releasing new versions.

A java client for the native protobuf protocol of ffwd.

<dependency>
    <groupId>com.spotify.ffwd</groupId>
    <artifactId>ffwd-client</artifactId>
    <version>LATEST-VERSION</version>
</dependency>

public class Foo {
    private static final FastForward ffwd = FastForward.setup();
    private static final Metric metric = FastForward.metric("foo.metric").attribute("class", Foo.class.getCanonicalName());
    public void run() throws IOException {
        ffwd.send(metric.value(42));
    }
}

All registered OpenCensus Stats views will be exported to FFWD.

At this time histograms/distributions are not supported in Heroic until #476 is resolved.

<dependency>
    <groupId>com.spotify.ffwd</groupId>
    <artifactId>opencensus-exporter</artifactId>
    <version>LATEST-VERSION</version>
</dependency>

com.spotify.ffwd.FfwdStatsExporter.createAndRegister(
   com.spotify.ffwd.FfwdStatsConfiguration.builder().setExporterIntervalSeconds(30).build()
);

1. Fork ffwd-java-client from GitHub and clone your fork.
2. Hack.
3. Push the branch back to GitHub.
4. Send a pull request to our upstream repo.

Releasing is done via the maven-release-plugin and nexus-staging-plugin which are configured via the release profile. Deploys are staged in oss.sonatype.org before being deployed to Maven Central. Check out the maven-release-plugin docs and the nexus-staging-plugin docs for more information.

To release, first run:

mvn -P release release:prepare

You will be prompted for the release version and the next development version. On success, follow with:

mvn -P release release:perform