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add: functional endpoint and annotated controller

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This commit is contained in:
Fabio Pereira 2018-03-22 01:25:15 -03:00
parent b3c7a690a2
commit 9f21415451
9 changed files with 202 additions and 48 deletions
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86
spring-webflux/pom.xml
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<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId> <groupId>com.baeldung</groupId>
<artifactId>spring-webflux</artifactId> <artifactId>spring-webflux</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging> <packaging>jar</packaging>
<name>spring-webflux</name> <name>spring-webflux</name>
<description>Spring Webflux sample project about filters</description> <description>Spring Webflux sample project about filters</description>
<parent> <parent>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId> <artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.RELEASE</version> <version>2.0.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository --> <relativePath/> <!-- lookup parent from repository -->
</parent> </parent>
<properties> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version> <java.version>1.8</java.version>
</properties> </properties>
<dependencies> <dependencies>
<dependency> <dependency>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId> <artifactId>spring-boot-starter-webflux</artifactId>
</dependency> </dependency>
<dependency> <dependency>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId> <artifactId>spring-boot-starter-test</artifactId>
<scope>runtime</scope> <scope>test</scope>
</dependency> </dependency>
<dependency> </dependencies>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build> <build>
<plugins> <plugins>
<plugin> <plugin>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId> <artifactId>spring-boot-maven-plugin</artifactId>
</plugin> </plugin>
</plugins> </plugins>
</build> </build>
</project> </project>

15
spring-webflux/src/main/java/com/baeldung/springwebflux/controller/UserController.java Normal file
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package com.baeldung.springwebflux.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@RestController
public class UserController {
@GetMapping(path = "/users/{name}")
public Mono<String> getName(@PathVariable String name) {
return Mono.just(name);
}
}

22
spring-webflux/src/main/java/com/baeldung/springwebflux/filter/ExampleHandlerFilterFunction.java Normal file
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package com.baeldung.springwebflux.filter;
import org.springframework.web.reactive.function.server.HandlerFilterFunction;
import org.springframework.web.reactive.function.server.HandlerFunction;
import org.springframework.web.reactive.function.server.ServerRequest;
import org.springframework.web.reactive.function.server.ServerResponse;
import reactor.core.publisher.Mono;
import static org.springframework.http.HttpStatus.FORBIDDEN;
public class ExampleHandlerFilterFunction implements HandlerFilterFunction {
@Override
public Mono filter(ServerRequest serverRequest, HandlerFunction handlerFunction) {
if (serverRequest.pathVariable("name").equalsIgnoreCase("test")) {
return ServerResponse.status(FORBIDDEN).build();
}
return handlerFunction.handle(serverRequest);
}
}

17
spring-webflux/src/main/java/com/baeldung/springwebflux/filter/ExampleWebFilter.java Normal file
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package com.baeldung.springwebflux.filter;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import reactor.core.publisher.Mono;
@Component
public class ExampleWebFilter implements WebFilter {
@Override
public Mono<Void> filter(ServerWebExchange serverWebExchange, WebFilterChain webFilterChain) {
serverWebExchange.getResponse().getHeaders().add("web-filter", "web-filter-test");
return webFilterChain.filter(serverWebExchange);
}
}

17
spring-webflux/src/main/java/com/baeldung/springwebflux/handler/PlayerHandler.java Normal file
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package com.baeldung.springwebflux.handler;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.server.ServerRequest;
import org.springframework.web.reactive.function.server.ServerResponse;
import reactor.core.publisher.Mono;
import static org.springframework.web.reactive.function.server.ServerResponse.ok;
@Component
public class PlayerHandler {
public Mono<ServerResponse> getName(ServerRequest request) {
Mono<String> name = Mono.just(request.pathVariable("name"));
return ok().body(name, String.class);
}
}

22
spring-webflux/src/main/java/com/baeldung/springwebflux/router/PlayerRouter.java Normal file
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package com.baeldung.springwebflux.router;
import com.baeldung.springwebflux.filter.ExampleHandlerFilterFunction;
import com.baeldung.springwebflux.handler.PlayerHandler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.reactive.function.server.RouterFunction;
import org.springframework.web.reactive.function.server.RouterFunctions;
import org.springframework.web.reactive.function.server.ServerResponse;
import static org.springframework.web.reactive.function.server.RequestPredicates.GET;
@Configuration
public class PlayerRouter {
@Bean
public RouterFunction<ServerResponse> route(PlayerHandler playerHandler) {
return RouterFunctions
.route(GET("/players/{name}"), playerHandler::getName)
.filter(new ExampleHandlerFilterFunction()::filter);
}
}

1
spring-webflux/src/main/resources/application.properties
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logging.level.org.springframework.web=DEBUG

31
spring-webflux/src/test/java/com/baeldung/springwebflux/controller/UserControllerTest.java Normal file
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package com.baeldung.springwebflux.controller;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.reactive.server.EntityExchangeResult;
import org.springframework.test.web.reactive.server.WebTestClient;
import static org.junit.Assert.assertEquals;
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class UserControllerTest {
@Autowired
private WebTestClient webTestClient;
@Test
public void getUserName() {
EntityExchangeResult<String> result = webTestClient.get().uri("/users/fabio")
.exchange()
.expectStatus().isOk()
.expectBody(String.class)
.returnResult();
assertEquals(result.getResponseBody(), "fabio");
assertEquals(result.getResponseHeaders().getFirst("web-filter"), "web-filter-test");
}
}

39
spring-webflux/src/test/java/com/baeldung/springwebflux/handler/PlayerHandlerTest.java Normal file
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package com.baeldung.springwebflux.handler;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.reactive.server.EntityExchangeResult;
import org.springframework.test.web.reactive.server.WebTestClient;
import static org.junit.Assert.assertEquals;
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class PlayerHandlerTest {
@Autowired
private WebTestClient webTestClient;
@Test
public void getPlayerName() {
EntityExchangeResult<String> result = webTestClient.get().uri("/players/fabio")
.exchange()
.expectStatus().isOk()
.expectBody(String.class)
.returnResult();
assertEquals(result.getResponseBody(), "fabio");
assertEquals(result.getResponseHeaders().getFirst("web-filter"), "web-filter-test");
}
@Test
public void getForbiddenIfPlayerNameIsTest() {
webTestClient.get().uri("/players/test")
.exchange()
.expectStatus().isForbidden();
}
}