Server-side caching filter for Dropwizard/Jersey.

Licence: Apache 2.0

How to use:

In main application: Register the cache

@Override
public void run(final MainConfiguration configuration, final Environment environment) {
 environment.jersey().register(
    new CachingFilterFeature(
        Arrays.asList("Accept"), // list of HTTP request headers to use for key in addition to the method (e.g. GET) and URL
        CacheBuilder.newBuilder().softValues().build()
    ));
	...
}

---

In resource: Instruct caching filter to cache operations per method

@GET
@Produces(MediaType.APPLICATION_JSON)
@Path("/cached")
@ResponseCachedByFilter(10000)
public Object getCached() {
	return dao.get();
}

---

Parameter -- TTL of the cache entry in milliseconds.

Principal diagram