Support more than one custom annotation which registers MP REST Client provider

extensions/rest-client/deployment/src/main/java/io/quarkus/restclient/deployment/RestClientAnnotationProviderBuildItem.java

@@ -2,12 +2,12 @@
 
 import org.jboss.jandex.DotName;
 
-import io.quarkus.builder.item.SimpleBuildItem;
+import io.quarkus.builder.item.MultiBuildItem;
 
 /**
  * Used to mark a custom annotation and its associated JAX-RS client provider
  */
-public final class RestClientAnnotationProviderBuildItem extends SimpleBuildItem {
+public final class RestClientAnnotationProviderBuildItem extends MultiBuildItem {
 
     private final DotName annotationName;
     private final Class<?> providerClass;
@@ -17,6 +17,11 @@ public RestClientAnnotationProviderBuildItem(DotName annotationName, Class<?> pr
         this.providerClass = providerClass;
     }
 
+    public RestClientAnnotationProviderBuildItem(String annotationName, Class<?> providerClass) {
+        this.annotationName = DotName.createSimple(annotationName);
+        this.providerClass = providerClass;
+    }
+
     public DotName getAnnotationName() {
         return annotationName;
     }

extensions/rest-client/deployment/src/main/java/io/quarkus/restclient/deployment/RestClientProcessor.java

@@ -170,7 +170,7 @@ void processInterfaces(
             BeanArchiveIndexBuildItem beanArchiveIndexBuildItem,
             Capabilities capabilities,
             PackageConfig packageConfig,
-            Optional<RestClientAnnotationProviderBuildItem> restClientAnnotationProvider,
+            List<RestClientAnnotationProviderBuildItem> restClientAnnotationProviders,
             BuildProducer<NativeImageProxyDefinitionBuildItem> proxyDefinition,
             BuildProducer<ReflectiveClassBuildItem> reflectiveClass,
             BuildProducer<ReflectiveHierarchyBuildItem> reflectiveHierarchy,
@@ -237,20 +237,28 @@ public void register(RegistrationContext registrationContext) {
                     configurator.addQualifier(REST_CLIENT);
                     final String configPrefix = computeConfigPrefix(restClientName.toString(), entry.getValue());
                     final ScopeInfo scope = computeDefaultScope(capabilities, config, entry, configPrefix);
-                    final Class<?> annotationProvider = checkAnnotationProviders(entry.getValue(),
-                            restClientAnnotationProvider.orElse(null));
+                    final List<Class<?>> annotationProviders = checkAnnotationProviders(entry.getValue(),
+                            restClientAnnotationProviders);
                     configurator.scope(scope);
                     configurator.creator(m -> {
                         // return new RestClientBase(proxyType, baseUri).create();
                         ResultHandle interfaceHandle = m.loadClass(restClientName.toString());
                         ResultHandle baseUriHandle = m.load(getAnnotationParameter(entry.getValue(), "baseUri"));
                         ResultHandle configPrefixHandle = m.load(configPrefix);
-                        ResultHandle annotationProviderHandle = annotationProvider == null ? m.loadNull()
-                                : m.loadClass(annotationProvider);
+                        ResultHandle annotationProvidersHandle = null;
+                        if (!annotationProviders.isEmpty()) {
+                            annotationProvidersHandle = m.newArray(Class.class, annotationProviders.size());
+                            for (int i = 0; i < annotationProviders.size(); i++) {
+                                m.writeArrayValue(annotationProvidersHandle, i, m.loadClass(annotationProviders.get(i)));
+                            }
+                        } else {
+                            annotationProvidersHandle = m.loadNull();
+                        }
                         ResultHandle baseHandle = m.newInstance(
-                                MethodDescriptor.ofConstructor(RestClientBase.class, Class.class, String.class, String.class,
-                                        Class.class),
-                                interfaceHandle, baseUriHandle, configPrefixHandle, annotationProviderHandle);
+                                MethodDescriptor.ofConstructor(RestClientBase.class, Class.class, String.class,
+                                        String.class,
+                                        Class[].class),
+                                interfaceHandle, baseUriHandle, configPrefixHandle, annotationProvidersHandle);
                         ResultHandle ret = m.invokeVirtualMethod(
                                 MethodDescriptor.ofMethod(RestClientBase.class, "create", Object.class), baseHandle);
                         m.returnValue(ret);
@@ -262,13 +270,10 @@ public void register(RegistrationContext registrationContext) {
         }));
     }
 
-    private static Class<?> checkAnnotationProviders(ClassInfo classInfo,
-            RestClientAnnotationProviderBuildItem restClientAnnotationProvider) {
-        if (restClientAnnotationProvider != null
-                && classInfo.classAnnotation(restClientAnnotationProvider.getAnnotationName()) != null) {
-            return restClientAnnotationProvider.getProviderClass();
-        }
-        return null;
+    private static List<Class<?>> checkAnnotationProviders(ClassInfo classInfo,
+            List<RestClientAnnotationProviderBuildItem> restClientAnnotationProviders) {
+        return restClientAnnotationProviders.stream().filter(p -> (classInfo.classAnnotation(p.getAnnotationName()) != null))
+                .map(p -> p.getProviderClass()).collect(Collectors.toList());
     }
 
     @BuildStep

extensions/rest-client/runtime/src/main/java/io/quarkus/restclient/runtime/RestClientBase.java

@@ -49,14 +49,14 @@ public class RestClientBase {
     private final Class<?> proxyType;
     private final String baseUriFromAnnotation;
     private final String propertyPrefix;
-    private final Class<?> annotationProvider;
+    private final Class<?>[] annotationProviders;
 
     public RestClientBase(Class<?> proxyType, String baseUriFromAnnotation, String propertyPrefix,
-            Class<?> annotationProvider) {
+            Class<?>[] annotationProviders) {
         this.proxyType = proxyType;
         this.baseUriFromAnnotation = baseUriFromAnnotation;
         this.propertyPrefix = propertyPrefix;
-        this.annotationProvider = annotationProvider;
+        this.annotationProviders = annotationProviders;
     }
 
     public Object create() {
@@ -202,8 +202,10 @@ private void configureProviders(RestClientBuilder builder) {
         if (maybeProviders.isPresent()) {
             registerProviders(builder, maybeProviders.get());
         }
-        if (annotationProvider != null) {
-            builder.register(annotationProvider);
+        if (annotationProviders != null) {
+            for (Class<?> annotationProvider : annotationProviders) {
+                builder.register(annotationProvider);
+            }
         }
     }
 

integration-tests/maven/src/test/java/io/quarkus/maven/it/DevMojoIT.java

@@ -401,6 +401,24 @@ public void testProjectWithExtension() throws MavenInvocationException, IOExcept
         assertEquals(3, extDepWarnings.size());
     }
 
+    @Test
+    public void testRestClientCustomHeadersExtension() throws MavenInvocationException, IOException {
+        testDir = getTargetDir("projects/rest-client-custom-headers-extension");
+        runAndCheck();
+
+        final List<String> extDepWarnings = Files
+                .readAllLines(testDir.toPath().resolve("build-rest-client-custom-headers-extension.log"))
+                .stream()
+                .filter(s -> s.startsWith(
+                        "[WARNING] [io.quarkus.bootstrap.devmode.DependenciesFilter] Local Quarkus extension dependency "))
+                .collect(Collectors.toList());
+        assertTrue(extDepWarnings
+                .contains(
+                        "[WARNING] [io.quarkus.bootstrap.devmode.DependenciesFilter] Local Quarkus extension dependency org.acme:rest-client-custom-headers will not be hot-reloadable"));
+
+        assertThat(DevModeTestUtils.getHttpResponse("/app/frontend")).isEqualTo("CustomValue1 CustomValue2");
+    }
+
     @Test
     public void testThatTheApplicationIsReloadedMultiModule() throws MavenInvocationException, IOException {
         testDir = initProject("projects/multimodule", "projects/multimodule-with-deps");

integration-tests/maven/src/test/resources/projects/rest-client-custom-headers-extension/pom.xml

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.acme</groupId>
+    <artifactId>quarkus-extensions-parent</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>pom</packaging>
+
+    <properties>
+        <quarkus.platform.group-id>io.quarkus</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>@project.version@</quarkus.platform.version>
+        <quarkus-plugin.version>@project.version@</quarkus-plugin.version>
+        <surefire-plugin.version>3.0.0-M5</surefire-plugin.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+    <modules>
+        <module>rest-client-custom-headers</module>
+        <module>runner</module>
+    </modules>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+                <version>\${quarkus-plugin.version}</version>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.acme</groupId>
+                <artifactId>rest-client-custom-headers</artifactId>
+                <version>1.0-SNAPSHOT</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+</project>

integration-tests/maven/src/test/resources/projects/rest-client-custom-headers-extension/rest-client-custom-headers/deployment/pom.xml

@@ -0,0 +1,52 @@
+<?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"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.acme</groupId>
+        <artifactId>rest-client-custom-headers-parent</artifactId>
+        <version>1.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>rest-client-custom-headers-deployment</artifactId>
+    <name>Rest Client Custom Headers - Deployment</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc-deployment</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-core-deployment</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-rest-client-deployment</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.acme</groupId>
+            <artifactId>rest-client-custom-headers</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <annotationProcessorPaths>
+                        <path>
+                            <groupId>io.quarkus</groupId>
+                            <artifactId>quarkus-extension-processor</artifactId>
+                            <version>\${quarkus.version}</version>
+                        </path>
+                    </annotationProcessorPaths>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

integration-tests/maven/src/test/resources/projects/rest-client-custom-headers-extension/rest-client-custom-headers/deployment/src/main/java/org/acme/deployment/ExtensionBuildStep.java

@@ -0,0 +1,24 @@
+package org.acme.deployment;
+
+import io.quarkus.arc.deployment.AdditionalBeanBuildItem;
+import io.quarkus.deployment.annotations.BuildProducer;
+import io.quarkus.deployment.annotations.BuildStep;
+import io.quarkus.restclient.deployment.RestClientAnnotationProviderBuildItem;
+import org.acme.CustomHeader1Filter;
+import org.acme.CustomHeader2Filter;
+
+
+public class ExtensionBuildStep {
+
+    @BuildStep
+    void registerProvider(BuildProducer<AdditionalBeanBuildItem> additionalBeans,
+            BuildProducer<RestClientAnnotationProviderBuildItem> restAnnotationProvider) {
+        additionalBeans.produce(AdditionalBeanBuildItem.unremovableOf(CustomHeader1Filter.class));
+        additionalBeans.produce(AdditionalBeanBuildItem.unremovableOf(CustomHeader2Filter.class));
+
+        restAnnotationProvider.produce(new RestClientAnnotationProviderBuildItem("org.acme.CustomHeader1",
+                CustomHeader1Filter.class));
+        restAnnotationProvider.produce(new RestClientAnnotationProviderBuildItem("org.acme.CustomHeader2",
+                CustomHeader2Filter.class));
+    }
+}

integration-tests/maven/src/test/resources/projects/rest-client-custom-headers-extension/rest-client-custom-headers/pom.xml

@@ -0,0 +1,43 @@
+<?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"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.acme</groupId>
+        <artifactId>quarkus-extensions-parent</artifactId>
+        <version>1.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>rest-client-custom-headers-parent</artifactId>
+    <name>Rest Client Custom Headers - Parent</name>
+
+    <packaging>pom</packaging>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.parameters>true</maven.compiler.parameters>
+        <quarkus.version>@project.version@</quarkus.version>
+        <compiler-plugin.version>3.8.1</compiler-plugin.version>
+    </properties>
+
+    <modules>
+        <module>runtime</module>
+        <module>deployment</module>
+    </modules>
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <version>\${compiler-plugin.version}</version>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+</project>

integration-tests/maven/src/test/resources/projects/rest-client-custom-headers-extension/rest-client-custom-headers/runtime/pom.xml

@@ -0,0 +1,64 @@
+<?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"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.acme</groupId>
+        <artifactId>rest-client-custom-headers-parent</artifactId>
+        <version>1.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>rest-client-custom-headers</artifactId>
+    <name>Rest Client Custom Headers - Runtime</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-rest-client</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-bootstrap-maven-plugin</artifactId>
+                <version>\${quarkus.version}</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>extension-descriptor</goal>
+                        </goals>
+                        <phase>compile</phase>
+                        <configuration>
+                            <deployment>org.acme:rest-client-custom-headers-deployment:1.0-SNAPSHOT</deployment>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <annotationProcessorPaths>
+                        <path>
+                            <groupId>io.quarkus</groupId>
+                            <artifactId>quarkus-extension-processor</artifactId>
+                            <version>\${quarkus.version}</version>
+                        </path>
+                    </annotationProcessorPaths>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

integration-tests/maven/src/test/resources/projects/rest-client-custom-headers-extension/rest-client-custom-headers/runtime/src/main/java/org/acme/CustomHeader1.java

@@ -0,0 +1,13 @@
+package org.acme;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target({ ElementType.TYPE })
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+public @interface CustomHeader1 {
+}