ratpack.handling.Chain Java Examples

The following examples show how to use ratpack.handling.Chain. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: NewsServiceApp.java    From Hands-On-Reactive-Programming-in-Spring-5 with MIT License 6 votes vote down vote up 
@Bean
public Action<Chain> home() {
    return chain -> chain.get(ctx -> {

        FindPublisher<News> databasePublisher =
                databaseNews().lookupNews();
        Observable<News> httpNewsObservable =
                externalNews().retrieveNews();
        TransformablePublisher<News> stream = Streams.merge(
                databasePublisher,
                RxReactiveStreams.toPublisher(httpNewsObservable)
        );

        ctx.render(
                stream.toList()
                      .map(Jackson::json)
        );
    });
}
Example #2
Source File: BulkheadChain.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
private ServerSentEvents serverSentEvents(Chain chain, Seq<Flux<BulkheadEvent>> eventStreams) {
    Function<BulkheadEvent, String> data = b -> Jackson.getObjectWriter(chain.getRegistry())
        .writeValueAsString(BulkheadEventDTOFactory.createBulkheadEventDTO(b));
    return ServerSentEvents.serverSentEvents(Flux.merge(eventStreams),
        e -> e.id(BulkheadEvent::getBulkheadName).event(c -> c.getEventType().name())
            .data(data));
}
Example #3
Source File: RatpackITest.java    From java-specialagent with Apache License 2.0 4 votes vote down vote up 
public static void main(final String[] args) throws Exception {
  final RatpackServer server = RatpackServer.start(new Action<RatpackServerSpec>() {
    @Override
    public void execute(final RatpackServerSpec ratpackServerSpec) {
      ratpackServerSpec.handlers(new Action<Chain>() {
        @Override
        public void execute(final Chain chain) {
          chain.get(new Handler() {
            @Override
            public void handle(final Context context) {
              TestUtil.checkActiveSpan();
              context.render("Test");
            }
          });
        }
      });
    }
  });

  final HttpClient client = HttpClient.of(new Action<HttpClientSpec>() {
    @Override
    public void execute(final HttpClientSpec httpClientSpec) {
      httpClientSpec
        .poolSize(10)
        .maxContentLength(ServerConfig.DEFAULT_MAX_CONTENT_LENGTH)
        .readTimeout(Duration.of(60, ChronoUnit.SECONDS))
        .byteBufAllocator(PooledByteBufAllocator.DEFAULT);
    }
  });

  try (final ExecHarness harness = ExecHarness.harness()) {
    final ExecResult<ReceivedResponse> result = harness.yield(new Function<Execution,Promise<ReceivedResponse>>() {
      @Override
      public Promise<ReceivedResponse> apply(final Execution execution) {
        return client.get(URI.create("http://localhost:5050"));
      }
    });

    final int statusCode = result.getValue().getStatusCode();
    if (200 != statusCode)
      throw new AssertionError("ERROR: response: " + statusCode);
  }

  server.stop();
  TestUtil.checkSpan(new ComponentSpanCount("netty", 2, true));
}
Example #4
Source File: EmbedRatpackApp.java    From tutorials with MIT License 4 votes vote down vote up 
@Bean
public Action<Chain> hello() {
    return chain -> chain.get("hello", ctx -> ctx.render(content.body()));
}
Example #5
Source File: EmbedRatpackApp.java    From tutorials with MIT License 4 votes vote down vote up 
@Bean
public Action<Chain> list() {
    return chain -> chain.get("list", ctx -> ctx.render(list
      .articles()
      .toString()));
}
Example #6
Source File: Application.java    From tutorials with MIT License 4 votes vote down vote up 
public static void main(String[] args) throws Exception {

        final Action<HikariConfig> hikariConfigAction = hikariConfig -> {
            hikariConfig.setDataSourceClassName("org.h2.jdbcx.JdbcDataSource");
            hikariConfig.addDataSourceProperty("URL", "jdbc:h2:mem:baeldung;INIT=RUNSCRIPT FROM 'classpath:/DDL.sql'");
        };

        final Action<BindingsSpec> bindingsSpecAction = bindings -> bindings.module(HikariModule.class, hikariConfigAction);
        final HttpClient httpClient = HttpClient.of(httpClientSpec -> {
            httpClientSpec.poolSize(10)
                .connectTimeout(Duration.of(60, ChronoUnit.SECONDS))
                .maxContentLength(ServerConfig.DEFAULT_MAX_CONTENT_LENGTH)
                .responseMaxChunkSize(16384)
                .readTimeout(Duration.of(60, ChronoUnit.SECONDS))
                .byteBufAllocator(PooledByteBufAllocator.DEFAULT);
        });
        final Function<Registry, Registry> registryFunction = Guice.registry(bindingsSpecAction);

        final Action<Chain> chainAction = chain -> chain.all(new RequestValidatorFilter())
            .get(ctx -> ctx.render("Welcome to baeldung ratpack!!!"))
            .get("data/employees", ctx -> ctx.render(Jackson.json(createEmpList())))
            .get(":name", ctx -> ctx.render("Hello " + ctx.getPathTokens()
                .get("name") + "!!!"))
            .post(":amount", ctx -> ctx.render(" Amount $" + ctx.getPathTokens()
                .get("amount") + " added successfully !!!"));

        final Action<Chain> routerChainAction = routerChain -> {
            routerChain.path("redirect", new RedirectHandler())
                .prefix("employee", empChain -> {
                    empChain.get(":id", new EmployeeHandler());
                });
        };
        final Action<RatpackServerSpec> ratpackServerSpecAction = serverSpec -> serverSpec.registry(registryFunction)
            .registryOf(registrySpec -> {
                registrySpec.add(EmployeeRepository.class, new EmployeeRepositoryImpl());
                registrySpec.add(HttpClient.class, httpClient);
            })
            .handlers(chain -> chain.insert(routerChainAction)
                .insert(chainAction));

        RatpackServer.start(ratpackServerSpecAction);
    }