Example #1
0
    public void patternExamples() {
      String urlOne = "http://localhost:3333/one";
      // #ws-composition
      final CompletionStage<WSResponse> responseThreePromise =
          ws.url(urlOne)
              .get()
              .thenCompose(responseOne -> ws.url(responseOne.getBody()).get())
              .thenCompose(responseTwo -> ws.url(responseTwo.getBody()).get());
      // #ws-composition

      // #ws-recover
      CompletionStage<WSResponse> responsePromise = ws.url("http://example.com").get();
      CompletionStage<WSResponse> recoverPromise =
          responsePromise
              .handle(
                  (result, error) -> {
                    if (error != null) {
                      return ws.url("http://backup.example.com").get();
                    } else {
                      return CompletableFuture.completedFuture(result);
                    }
                  })
              .thenCompose(Function.identity());
      // #ws-recover
    }
Example #2
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 // #composed-call
 public CompletionStage<Result> index() {
   return ws.url(feedUrl)
       .get()
       .thenCompose(response -> ws.url(response.asJson().findPath("commentsUrl").asText()).get())
       .thenApply(
           response -> ok("Number of comments: " + response.asJson().findPath("count").asInt()));
 }
Example #3
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    public void responseExamples() {

      String url = "http://example.com";

      // #ws-response-json
      CompletionStage<JsonNode> jsonPromise = ws.url(url).get().thenApply(WSResponse::asJson);
      // #ws-response-json

      // #ws-response-xml
      CompletionStage<Document> documentPromise = ws.url(url).get().thenApply(WSResponse::asXml);
      // #ws-response-xml
    }
Example #4
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 public void streamPut() {
   String url = "http://example.com";
   // #stream-put
   CompletionStage<StreamedResponse> futureResponse =
       ws.url(url).setMethod("PUT").setBody("some body").stream();
   // #stream-put
 }
Example #5
0
    public void clientExamples() {
      // #ws-client
      WSClient client = WS.client();
      // #ws-client

      // #ws-custom-client
      // Set up the client config (you can also use a parser here):
      scala.Option<String> noneString = scala.None$.empty();
      WSClientConfig wsClientConfig =
          new WSClientConfig(
              Duration.apply(120, TimeUnit.SECONDS), // connectionTimeout
              Duration.apply(120, TimeUnit.SECONDS), // idleTimeout
              Duration.apply(120, TimeUnit.SECONDS), // requestTimeout
              true, // followRedirects
              true, // useProxyProperties
              noneString, // userAgent
              true, // compressionEnabled / enforced
              SSLConfigFactory.defaultConfig());

      NingWSClientConfig clientConfig = NingWSClientConfigFactory.forClientConfig(wsClientConfig);

      // Build a secure config out of the client config:
      NingAsyncHttpClientConfigBuilder secureBuilder =
          new NingAsyncHttpClientConfigBuilder(clientConfig);
      AsyncHttpClientConfig secureDefaults = secureBuilder.build();

      // You can directly use the builder for specific options once you have secure TLS defaults...
      AsyncHttpClientConfig customConfig =
          new AsyncHttpClientConfig.Builder(secureDefaults)
              .setProxyServer(new org.asynchttpclient.proxy.ProxyServer("127.0.0.1", 38080))
              .setCompressionEnforced(true)
              .build();

      WSClient customClient = new play.libs.ws.ning.NingWSClient(customConfig, materializer);

      CompletionStage<WSResponse> responsePromise =
          customClient.url("http://example.com/feed").get();
      // #ws-custom-client

      // #ws-underlying-client
      org.asynchttpclient.AsyncHttpClient underlyingClient =
          (org.asynchttpclient.AsyncHttpClient) ws.getUnderlying();
      // #ws-underlying-client

    }
Example #6
0
    public void streamFile()
        throws IOException, FileNotFoundException, InterruptedException, ExecutionException {
      String url = "http://example.com";
      // #stream-to-file
      File file = File.createTempFile("stream-to-file-", ".txt");
      FileOutputStream outputStream = new FileOutputStream(file);

      // Make the request
      CompletionStage<StreamedResponse> futureResponse = ws.url(url).setMethod("GET").stream();

      CompletionStage<File> downloadedFile =
          futureResponse.thenCompose(
              res -> {
                Source<ByteString, ?> responseBody = res.getBody();

                // The sink that writes to the output stream
                Sink<ByteString, scala.concurrent.Future<scala.runtime.BoxedUnit>> outputWriter =
                    Sink.<ByteString>foreach(bytes -> outputStream.write(bytes.toArray()));

                // Converts the materialized Scala Future into a Java8 `CompletionStage`
                Sink<ByteString, CompletionStage<?>> convertedOutputWriter =
                    outputWriter.mapMaterializedValue(FutureConverters::toJava);

                // materialize and run the stream
                CompletionStage<File> result =
                    responseBody
                        .runWith(convertedOutputWriter, materializer)
                        .whenComplete(
                            (value, error) -> {
                              // Close the output stream whether there was an error or not
                              try {
                                outputStream.close();
                              } catch (IOException e) {
                              }
                            })
                        .thenApply(v -> file);
                return result;
              });
      // #stream-to-file
      downloadedFile.toCompletableFuture().get();
      file.delete();
    }
Example #7
0
    public void streamResponse() {
      String url = "http://example.com";
      // #stream-to-result
      // Make the request
      CompletionStage<StreamedResponse> futureResponse = ws.url(url).setMethod("GET").stream();

      CompletionStage<Result> result =
          futureResponse.thenApply(
              response -> {
                WSResponseHeaders responseHeaders = response.getHeaders();
                Source<ByteString, ?> body = response.getBody();
                // Check that the response was successful
                if (responseHeaders.getStatus() == 200) {
                  // Get the content type
                  String contentType =
                      Optional.ofNullable(responseHeaders.getHeaders().get("Content-Type"))
                          .map(contentTypes -> contentTypes.get(0))
                          .orElse("application/octet-stream");

                  // If there's a content length, send that, otherwise return the body chunked
                  Optional<String> contentLength =
                      Optional.ofNullable(responseHeaders.getHeaders().get("Content-Length"))
                          .map(contentLengths -> contentLengths.get(0));
                  if (contentLength.isPresent()) {
                    return ok().sendEntity(
                            new HttpEntity.Streamed(
                                body,
                                Optional.of(Long.parseLong(contentLength.get())),
                                Optional.of(contentType)));
                  } else {
                    return ok().chunked(body).as(contentType);
                  }
                } else {
                  return new Result(Status.BAD_GATEWAY);
                }
              });
      // #stream-to-result
    }
Example #8
0
    public void streamSimpleRequest() {
      String url = "http://example.com";
      // #stream-count-bytes
      // Make the request
      CompletionStage<StreamedResponse> futureResponse = ws.url(url).setMethod("GET").stream();

      CompletionStage<Long> bytesReturned =
          futureResponse.thenCompose(
              res -> {
                Source<ByteString, ?> responseBody = res.getBody();

                // Count the number of bytes returned
                Sink<ByteString, scala.concurrent.Future<Long>> bytesSum =
                    Sink.fold(0L, (total, bytes) -> total + bytes.length());

                // Converts the materialized Scala Future into a Java8 `CompletionStage`
                Sink<ByteString, CompletionStage<Long>> convertedBytesSum =
                    bytesSum.mapMaterializedValue(FutureConverters::toJava);

                return responseBody.runWith(convertedBytesSum, materializer);
              });
      // #stream-count-bytes
    }
Example #9
0
    public void requestExamples() {
      // #ws-holder
      WSRequest request = ws.url("http://example.com");
      // #ws-holder

      // #ws-complex-holder
      WSRequest complexRequest =
          request
              .setHeader("headerKey", "headerValue")
              .setRequestTimeout(1000)
              .setQueryParameter("paramKey", "paramValue");
      // #ws-complex-holder

      // #ws-get
      CompletionStage<WSResponse> responsePromise = complexRequest.get();
      // #ws-get

      String url = "http://example.com";
      // #ws-auth
      ws.url(url).setAuth("user", "password", WSAuthScheme.BASIC).get();
      // #ws-auth

      // #ws-follow-redirects
      ws.url(url).setFollowRedirects(true).get();
      // #ws-follow-redirects

      // #ws-query-parameter
      ws.url(url).setQueryParameter("paramKey", "paramValue");
      // #ws-query-parameter

      // #ws-header
      ws.url(url).setHeader("headerKey", "headerValue").get();
      // #ws-header

      String jsonString = "{\"key1\":\"value1\"}";
      // #ws-header-content-type
      ws.url(url).setHeader("Content-Type", "application/json").post(jsonString);
      // OR
      ws.url(url).setContentType("application/json").post(jsonString);
      // #ws-header-content-type

      // #ws-timeout
      ws.url(url).setRequestTimeout(1000).get();
      // #ws-timeout

      // #ws-post-form-data
      ws.url(url)
          .setContentType("application/x-www-form-urlencoded")
          .post("key1=value1&key2=value2");
      // #ws-post-form-data

      // #ws-post-json
      JsonNode json = Json.newObject().put("key1", "value1").put("key2", "value2");

      ws.url(url).post(json);
      // #ws-post-json

      String value =
          IntStream.range(0, 100).boxed().map(i -> "abcdefghij").reduce("", (a, b) -> a + b);
      ByteString seedValue = ByteString.fromString(value);
      Stream<ByteString> largeSource = IntStream.range(0, 10).boxed().map(i -> seedValue);
      Source<ByteString, ?> largeImage = Source.from(largeSource.collect(Collectors.toList()));
      // #ws-stream-request
      CompletionStage<WSResponse> wsResponse = ws.url(url).setBody(largeImage).execute("PUT");
      // #ws-stream-request
    }
Example #10
0
 // #ws-action
 public CompletionStage<Result> index() {
   return ws.url(feedUrl)
       .get()
       .thenApply(response -> ok("Feed title: " + response.asJson().findPath("title").asText()));
 }