Focus on Your Features - Dropwizard takes care of the REST

Focus on your Features - Dropwizard takes care of the
REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 1 von 47 29.10.2015 20:35

pom.xml 1. MyApplication.java 2. MyConfiguration.java & config.yml 3. MyResource.java 4.
Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 13 von 47 29.10.2015 20:35

<project> <groupId>com.acrolinx.demo</groupId> <artifactId>hipster-o-mat</artifactId> <version>0.1-SNAPSHOT</version> <dependencies> <dependency> <groupId>io.dropwizard</groupId> <artifactId>dropwizard-core</artifactId> <version>0.9.0-rc5</version> </dependency>
</dependencies> ... </project> Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 14 von 47 29.10.2015 20:35

public class HipsterApplication extends Application<HipsterConfiguration> { public static void main(final
String[] args) { new HipsterApplication().run(args); } @Override public void run(final HipsterConfiguration conf, final Environment env) throws Exception { env.jersey().register(new HipsterResource()); } } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 15 von 47 29.10.2015 20:35

@Path("/hipsters") public class HipsterResource { @GET @Path("ping") public Pong foobar()
{ return new Pong(); } } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 16 von 47 29.10.2015 20:35

conferenceName: JUGF 2016 server: type: simple applicationContextPath: / adminContextPath: /admin
connector: type: http port: 12345 public class HipsterConfiguration extends Configuration { private String conferenceName; public String getConferenceName() { return conferenceName; } } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 17 von 47 29.10.2015 20:35

java -jar hipster-o-mat-0.1-SNAPSHOT.jar server hipster.yml Hello JUGF 2016 INFO [15:52:13,998]
io.d.s.ServerFactory: Starting HipsterApplication INFO [15:52:14,058] org.e.j.SetUIDListener: Opened HipsterApplication@200234 INFO [15:52:14,728] io.d.j.DropwizardResourceConfig: The following paths wer GET /hipsters/ping (com.ax.demo.resource.HipsterResource) INFO [15:52:14,828] o.e.jetty.s.Server: Started @1734ms >curl "http://localhost:12345/hipsters/ping" {"msg":"Pong"} Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 18 von 47 29.10.2015 20:35

public class HipsterServiceHealthCheck extends HealthCheck protected Result check() { if
(store.isRunning()) { return Result.healthy("I'm fine. Store is running."); } else { return Result.unhealthy("Oho, no storage for hipsters." } } } public void run(final HipsterConfiguration conf, final Environment environment) throws Exception { environment.healthChecks().register("hipsterHealth", new HipsterServiceHealthCheck(store)); ... Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 20 von 47 29.10.2015 20:35

@Timed @GET @Path("ping") public Pong foobar() { return new Pong();
} Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 21 von 47 29.10.2015 20:35

bootstrap.addBundle(new ViewBundle<HipsterConfiguration>(){...} public class HipsterView extends View { public HipsterView(Hipster
hipster) { super("hipster.mustache"); this.hipster = hipster; } public Hipster getHipster() { return hipster; }} @GET @Path("{name}/view") @Produces({ MediaType.TEXT_HTML, MediaType.APPLICATION_JSON }) public HipsterView getHipsterView(@PathParam("name") String name) return new HipsterView(getHipster(name)); } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 23 von 47 29.10.2015 20:35

<body> {{#hipster}} <div id="layout" class="pure-g"> <div class="sidebar pure-u-1 pure-u-med-1-4"> <div
class="header"> <hgroup> <h1 class="brand-title">Sample Hipster #{{id}}</h1> <h2 class="brand-tagline">All about '{{name}}'</h2> </hgroup> </div> </div> </div> {{/hipster}} ... Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 24 von 47 29.10.2015 20:35

curl -X GET -H "Accept: application/json" http://localhost:12345/hipsters/Foo/view STATUS 200 OK
{"hipster": {"id":0, "name":"Foo", "jeans":"SKINNY", "hornRimmedGlasses":true, "imagePath":null} } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 26 von 47 29.10.2015 20:35

@ClassRule DropwizardAppRule<HipsterConfiguration> RULE = new DropwizardAppRule<HipsterConfiguration>( HipsterApplication.class, resourceFilePath("hipster.yml")); @Test public
void testHipsterGetCreateRoundtrip() { Client client = ClientBuilder.newClient(); Response response = client.target("http://localhost:" + RULE.getLocalPort()) .path("hipsters").request(APPLICATION_JSON) .post(Entity.json(getHipster("foo"))); assertEquals(201, response.getStatus()); Hipster hipReceived = client.target(String.format( "http://localhost:%d/hipsters/foo", RULE.getLocalPort())) .request(MediaType.APPLICATION_JSON).get(Hipster.class); assertEquals(getHipster("foo"), hipReceived); } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 27 von 47 29.10.2015 20:35

environment.lifecycle().manage(store); public class HipsterStore implements Managed { @Override public void
start() throws Exception {...} @Override public void stop() throws Exception {...} } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 29 von 47 29.10.2015 20:35

public class Hipster { @Min(value = 0, message = "Id
must be positive") private int id; ... } @POST public Response addHipster(@Valid final Hipster hipster){ ... Status 422 - {"errors":["id Id must be positive (was -2)"]} Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 30 von 47 29.10.2015 20:35

public void initialize(Bootstrap<SampleConfiguration> bs) bootstrap.addBundle(new AssetsBundle( "/imgFolder", "/hipster-images", "index.html", "images"
bootstrap.addBundle(new AssetsBundle( "/apidocs", "/doc", "service.json", "js")); } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 34 von 47 29.10.2015 20:35

discovery: serviceName: hello-world public void initialize(Bootstrap<HipsterConfiguration> bootstrap) bootstrap.addBundle(dBundle); } private
final DiscoveryBundle<Conf> dBundle = new DiscoveryBundle<Conf>(){ @Override public DiscoveryFactory getDiscoveryFactory(Conf conf) return conf.getDiscovery(); } }); Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 35 von 47 29.10.2015 20:35

final DiscoveryClient client = discoveryBundle.newDiscoveryClient("other-service"); environment.lifecycle().manage( new DiscoveryClientManager(client)); Focus on
your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 36 von 47 29.10.2015 20:35

environment.admin().addTask(new HelloTask("Hello")); curl -X POST -H "Content-Type: application/x-www-form-urlencoded" -d 'logger=org.eclipse.jetty.server.Server&level=DEBUG'
http://localhost:56789/admin/tasks/log-level Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 44 von 47 29.10.2015 20:35

@GET @Timed(name = "get-requests") @CacheControl(maxAge = 1, maxAgeUnit = TimeUnit.DAYS)
public Saying hello(@QueryParam("name") Optional<String> nm) return new Saying(counter.incrementAndGet() , template.render(nm)); } Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 45 von 47 29.10.2015 20:35

@GET public SecretPlan getSecretPlan(@Auth User user) { return dao.findPlanForUser(user); }
public class SimpleAuthenticator implements Authenticator< @Override public Optional<user> authenticate(BasicCredentials credentials if ("secret".equals(credentials.getPassword())) { return Optional.of(new User(credentials.getUsername())) } return Optional.absent(); } }</user></basiccredentials,> @Override public void run(ExampleConfiguration configuration, Environment environment) { environment.jersey().register(AuthFactory.binder( new OAuthFactory<User>(new ExampleAuthenticator(), Focus on your Features - Dropwizard takes care of the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 46 von 47 29.10.2015 20:35

} Focus on your Features - Dropwizard takes care of
the REST file:///C:/Users/Felix.Braun/Google Drive/Dropwizard-Javaland-Talk/dw-short-version-codecentric.h... 47 von 47 29.10.2015 20:35

Focus on Your Features - Dropwizard takes care of the REST

Focus on Your Features - Dropwizard takes care of the REST

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