Spring boot to Micronaut Framework Configuration

guides/spring-boot-vs-micronaut-configuration/src/main/java/example/micronaut/Droid.java

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+package example.micronaut;
+
+import io.micronaut.serde.annotation.Serdeable;
+
+@Serdeable
+public class Droid {
+
+    private String id;
+    private String description;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+}

guides/spring-boot-vs-micronaut-configuration/src/main/java/example/micronaut/DroidController.java

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+package example.micronaut;
+
+import io.micronaut.http.annotation.Controller;
+import io.micronaut.http.annotation.Get;
+
+@Controller("/droid")
+class DroidController {
+
+    private final Droid droid;
+
+    DroidController(Droid droid) {
+        this.droid = droid;
+    }
+
+    @Get
+    Droid getDroid() {
+        return droid;
+    }
+}

guides/spring-boot-vs-micronaut-configuration/src/main/java/example/micronaut/DroidFactory.java

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+package example.micronaut;
+
+import io.micronaut.context.annotation.ConfigurationProperties;
+import io.micronaut.context.annotation.Factory;
+
+@Factory
+public class DroidFactory {
+    @ConfigurationProperties("droid")
+    Droid create() {
+        return new Droid();
+    }
+}

guides/spring-boot-vs-micronaut-configuration/src/main/java/example/micronaut/Greeting.java

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+package example.micronaut;
+
+import io.micronaut.context.annotation.ConfigurationProperties;
+
+@ConfigurationProperties("greeting")
+public class Greeting {
+
+    private String name;
+    private String coffee;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getCoffee() {
+        return coffee;
+    }
+
+    public void setCoffee(String coffee) {
+        this.coffee = coffee;
+    }
+}

guides/spring-boot-vs-micronaut-configuration/src/main/java/example/micronaut/GreetingConfigurationPropertiesController.java

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+package example.micronaut;
+
+import io.micronaut.http.MediaType;
+import io.micronaut.http.annotation.Controller;
+import io.micronaut.http.annotation.Get;
+import io.micronaut.http.annotation.Produces;
+
+@Controller("/greet")
+class GreetingConfigurationPropertiesController {
+
+    private final Greeting greeting;
+
+    GreetingConfigurationPropertiesController(Greeting greeting) {
+        this.greeting = greeting;
+    }
+
+    @Produces(MediaType.TEXT_PLAIN)
+    @Get("/name")
+    String getGreeting() {
+        return greeting.getName();
+    }
+
+    @Produces(MediaType.TEXT_PLAIN)
+    @Get("/coffee")
+    String getCoffee() {
+        return greeting.getCoffee();
+    }
+
+
+
+}

guides/spring-boot-vs-micronaut-configuration/src/main/java/example/micronaut/GreetingController.java

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+package example.micronaut;
+
+import io.micronaut.context.annotation.Value;
+import io.micronaut.http.MediaType;
+import io.micronaut.http.annotation.Controller;
+import io.micronaut.http.annotation.Get;
+import io.micronaut.http.annotation.Produces;
+
+@Controller("/greeting")
+class GreetingController {
+
+    @Value("${greeting-name:Mirage}")
+    protected String name;
+
+    @Value("${greeting-coffee:${greeting-name} is drinking Café Ganador}")
+    protected String coffee;
+
+    @Produces(MediaType.TEXT_PLAIN)
+    @Get
+    String getGreeting() {
+        return name;
+    }
+
+    @Produces(MediaType.TEXT_PLAIN)
+    @Get("/coffee")
+    String getCoffee() {
+        return coffee;
+    }
+
+
+
+}

guides/spring-boot-vs-micronaut-configuration/src/test/java/example/micronaut/DroidControllerTest.java

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+package example.micronaut;
+
+import io.micronaut.context.annotation.Property;
+import io.micronaut.http.HttpRequest;
+import io.micronaut.http.client.BlockingHttpClient;
+import io.micronaut.http.client.HttpClient;
+import io.micronaut.http.client.annotation.Client;
+import io.micronaut.test.extensions.junit5.annotation.MicronautTest;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@Property(name = "droid.id", value = "BB-8")
+@Property(name = "droid.description", value = "Small, rolling android. Probably does not drink coffee")
+@MicronautTest
+class DroidControllerTest {
+
+    @Disabled
+    @Test
+    void droidViaFactory(@Client("/")HttpClient httpClient) {
+        BlockingHttpClient client = httpClient.toBlocking();
+        HttpRequest<?> request = HttpRequest.GET("/droid");
+        Droid droid = assertDoesNotThrow(() -> client.retrieve(request, Droid.class));
+        assertNotNull(droid);
+        assertEquals("BB-8", droid.getId());
+        assertEquals("Small, rolling android. Probably does not drink coffee", droid.getDescription());
+    }
+}

guides/spring-boot-vs-micronaut-configuration/src/test/java/example/micronaut/GreetingConfigurationPropertiesControllerTest.java

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+package example.micronaut;
+
+import io.micronaut.context.annotation.Property;
+import io.micronaut.http.HttpRequest;
+import io.micronaut.http.MediaType;
+import io.micronaut.http.client.BlockingHttpClient;
+import io.micronaut.http.client.HttpClient;
+import io.micronaut.http.client.annotation.Client;
+import io.micronaut.http.uri.UriBuilder;
+import io.micronaut.test.extensions.junit5.annotation.MicronautTest;
+import org.junit.jupiter.api.Test;
+
+import java.net.URI;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@Property(name = "greeting.name", value = "Dakota")
+@Property(name = "greeting.coffee", value = "Dakota is drinking Café Cereza")
+@MicronautTest
+class GreetingConfigurationPropertiesControllerTest {
+
+    @Test
+    void defaultValue(@Client("/") HttpClient httpClient) {
+        BlockingHttpClient client = httpClient.toBlocking();
+        URI uri = UriBuilder.of("/greet").path("name").build();
+
+        String txt = assertDoesNotThrow(() -> client.retrieve(HttpRequest.GET(uri).accept(MediaType.TEXT_PLAIN)));
+        assertEquals("Dakota", txt);
+    }
+
+    @Test
+    void derivedProperties(@Client("/") HttpClient httpClient) {
+        BlockingHttpClient client = httpClient.toBlocking();
+        URI uri = UriBuilder.of("/greet").path("coffee").build();
+        String txt = assertDoesNotThrow(() -> client.retrieve(HttpRequest.GET(uri).accept(MediaType.TEXT_PLAIN)));
+        assertEquals("Dakota is drinking Café Cereza", txt);
+    }
+}

guides/spring-boot-vs-micronaut-configuration/src/test/java/example/micronaut/GreetingControllerDefaultValueTest.java

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+package example.micronaut;
+
+import io.micronaut.http.HttpRequest;
+import io.micronaut.http.MediaType;
+import io.micronaut.http.client.BlockingHttpClient;
+import io.micronaut.http.client.HttpClient;
+import io.micronaut.http.client.annotation.Client;
+import io.micronaut.http.uri.UriBuilder;
+import io.micronaut.test.extensions.junit5.annotation.MicronautTest;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import java.net.URI;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@MicronautTest
+class GreetingControllerDefaultValueTest {
+
+    @Test
+    void defaultValue(@Client("/") HttpClient httpClient) {
+        BlockingHttpClient client = httpClient.toBlocking();
+        String txt = assertDoesNotThrow(() -> client.retrieve(HttpRequest.GET("/greeting").accept(MediaType.TEXT_PLAIN)));
+        assertEquals("Mirage", txt);
+    }
+
+    @Disabled
+    @Test
+    void derivedProperties(@Client("/") HttpClient httpClient) {
+        BlockingHttpClient client = httpClient.toBlocking();
+        URI uri = UriBuilder.of("/greeting").path("coffee").build();
+        String txt = assertDoesNotThrow(() -> client.retrieve(HttpRequest.GET(uri).accept(MediaType.TEXT_PLAIN)));
+        assertEquals("Mirage is drinking Café Ganador", txt);
+    }
+}

guides/spring-boot-vs-micronaut-configuration/src/test/java/example/micronaut/GreetingControllerTest.java

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+package example.micronaut;
+
+import io.micronaut.context.annotation.Property;
+import io.micronaut.http.HttpRequest;
+import io.micronaut.http.MediaType;
+import io.micronaut.http.client.BlockingHttpClient;
+import io.micronaut.http.client.HttpClient;
+import io.micronaut.http.client.annotation.Client;
+import io.micronaut.http.uri.UriBuilder;
+import io.micronaut.test.extensions.junit5.annotation.MicronautTest;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import java.net.URI;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@Property(name = "greeting-name", value = "Dakota")
+@Property(name = "greeting-coffee", value = "Dakota is drinking Café Cereza")
+@MicronautTest
+class GreetingControllerTest {
+
+    @Test
+    void defaultValue(@Client("/") HttpClient httpClient) {
+        BlockingHttpClient client = httpClient.toBlocking();
+        String txt = assertDoesNotThrow(() -> client.retrieve(HttpRequest.GET("/greeting").accept(MediaType.TEXT_PLAIN)));
+        assertEquals("Dakota", txt);
+    }
+
+    @Disabled
+    @Test
+    void derivedProperties(@Client("/") HttpClient httpClient) {
+        BlockingHttpClient client = httpClient.toBlocking();
+        URI uri = UriBuilder.of("/greeting").path("coffee").build();
+        String txt = assertDoesNotThrow(() -> client.retrieve(HttpRequest.GET(uri).accept(MediaType.TEXT_PLAIN)));
+        assertEquals("Dakota is drinking Café Cereza", txt);
+    }
+}