Emitter support and reactive dependency updates

bom/pom.xml

@@ -53,7 +53,7 @@
         <smallrye-jwt.version>1.1.1</smallrye-jwt.version>
         <smallrye-reactive-streams-operators.version>1.0.3</smallrye-reactive-streams-operators.version>
         <smallrye-converter-api.version>1.0.3</smallrye-converter-api.version>
-        <smallrye-reactive-messaging.version>0.0.5</smallrye-reactive-messaging.version>
+        <smallrye-reactive-messaging.version>0.0.7</smallrye-reactive-messaging.version>
         <smallrye-rest-client.version>1.2.2</smallrye-rest-client.version>
         <swagger-ui.version>3.20.9</swagger-ui.version>
         <javax.activation.version>1.1.1</javax.activation.version>
@@ -129,7 +129,7 @@
         <reactive-streams.version>1.0.2</reactive-streams.version>
         <test-containers.version>1.10.7</test-containers.version>
         <jboss-logging.version>3.3.2.Final</jboss-logging.version>
-        <axle-client.version>0.0.3</axle-client.version>
+        <axle-client.version>0.0.4</axle-client.version>
         <kafka-clients.version>1.1.0</kafka-clients.version>
         <kafka2.version>1.1.0</kafka2.version>
         <debezium.version>0.9.2.Final</debezium.version>

build-parent/pom.xml

@@ -41,7 +41,7 @@
            what we work with by self downloading it: -->
         <graal-sdk.version-for-documentation>1.0.0-rc14</graal-sdk.version-for-documentation>
         <rest-assured.version>3.3.0</rest-assured.version>
-        <axle-client.version>0.0.2</axle-client.version>
+        <axle-client.version>0.0.4</axle-client.version>
         <vertx.version>3.6.3</vertx.version>
 
         <!-- Enable APT by default for Eclipse -->

docs/src/main/asciidoc/async-message-passing.adoc

@@ -69,8 +69,19 @@ public class GreetingService {
 <1> If not set, the address is the fully qualified name of the bean, for instance, in this snippet it's `org.acme.vertx.GreetingService`.
 <2> The method parameter is the message body. If the method returns _something_ it's the message response.
 
-// TODO Revisit this once the blocking PR is integrated - https://github.com/quarkusio/quarkus/pull/1646
-IMPORTANT: The code consuming the event must be _non-blocking_, as it's called on the Vert.x event loop.
+[IMPORTANT]
+====
+By default, the code consuming the event must be _non-blocking_, as it's called on the Vert.x event loop.
+If your processing is blocking, use the `blocking` arttribute:
+
+[source, java]
+----
+@ConsumeEvent(value = "blocking-consumer", blocking = true)
+void consumeBlocking(String message) {
+    // Something blocking
+}
+----
+====
 
 === Configuring the address
 

docs/src/main/asciidoc/using-vertx.adoc

@@ -217,7 +217,7 @@ The first approach can be implemented as follows:
 @Produces(MediaType.SERVER_SENT_EVENTS)
 @Path("{name}/streaming")
 public Publisher<String> greeting(@PathParam("name") String name) {
-    return ReactiveStreams.fromPublisher(vertx.periodicStream(2000).toPublisher())
+    return vertx.periodicStream(2000).toPublisherBuilder()
             .map(l -> String.format("Hello %s! (%s)%n", name, new Date()))
             .buildRs();
 }

extensions/smallrye-reactive-messaging/deployment/src/main/java/io/quarkus/smallrye/reactivemessaging/deployment/EmitterBuildItem.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2019 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.quarkus.smallrye.reactivemessaging.deployment;
+
+import org.jboss.builder.item.MultiBuildItem;
+import org.jboss.jandex.FieldInfo;
+import org.jboss.jandex.MethodInfo;
+
+import io.quarkus.arc.processor.BeanInfo;
+
+public final class EmitterBuildItem extends MultiBuildItem {
+
+    /**
+     * The name of the stream the emitter is connected to.
+     */
+    private final String name;
+
+    public EmitterBuildItem(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+}

extensions/smallrye-reactive-messaging/deployment/src/main/java/io/quarkus/smallrye/reactivemessaging/deployment/SmallRyeReactiveMessagingProcessor.java

@@ -17,14 +17,15 @@
 
 import static io.quarkus.deployment.annotations.ExecutionTime.STATIC_INIT;
 
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 import org.eclipse.microprofile.reactive.messaging.Incoming;
 import org.eclipse.microprofile.reactive.messaging.Outgoing;
+import org.jboss.jandex.AnnotationInstance;
 import org.jboss.jandex.DotName;
 import org.jboss.jandex.MethodInfo;
 import org.jboss.logging.Logger;
@@ -37,13 +38,16 @@
 import io.quarkus.arc.processor.AnnotationStore;
 import io.quarkus.arc.processor.BeanDeploymentValidator;
 import io.quarkus.arc.processor.BeanInfo;
+import io.quarkus.arc.processor.InjectionPointInfo;
 import io.quarkus.deployment.annotations.BuildProducer;
 import io.quarkus.deployment.annotations.BuildStep;
 import io.quarkus.deployment.annotations.Record;
 import io.quarkus.deployment.builditem.FeatureBuildItem;
 import io.quarkus.deployment.builditem.substrate.ReflectiveClassBuildItem;
 import io.quarkus.smallrye.reactivemessaging.runtime.SmallRyeReactiveMessagingLifecycle;
 import io.quarkus.smallrye.reactivemessaging.runtime.SmallRyeReactiveMessagingTemplate;
+import io.smallrye.reactive.messaging.annotations.Emitter;
+import io.smallrye.reactive.messaging.annotations.Stream;
 
 /**
  *
@@ -55,6 +59,8 @@ public class SmallRyeReactiveMessagingProcessor {
 
     static final DotName NAME_INCOMING = DotName.createSimple(Incoming.class.getName());
     static final DotName NAME_OUTGOING = DotName.createSimple(Outgoing.class.getName());
+    static final DotName NAME_STREAM = DotName.createSimple(Stream.class.getName());
+    static final DotName NAME_EMITTER = DotName.createSimple(Emitter.class.getName());
 
     @BuildStep
     AdditionalBeanBuildItem beans() {
@@ -63,6 +69,7 @@ AdditionalBeanBuildItem beans() {
 
     @BuildStep
     BeanDeploymentValidatorBuildItem beanDeploymentValidator(BuildProducer<MediatorBuildItem> mediatorMethods,
+            BuildProducer<EmitterBuildItem> emitters,
             BuildProducer<FeatureBuildItem> feature) {
 
         feature.produce(new FeatureBuildItem(FeatureBuildItem.SMALLRYE_REACTIVE_MESSAGING));
@@ -78,10 +85,7 @@ public void validate(ValidationContext validationContext) {
                 for (BeanInfo bean : validationContext.get(Key.BEANS)) {
                     if (bean.isClassBean()) {
                         // TODO: add support for inherited business methods
-                        for (MethodInfo method : bean.getTarget()
-                                .get()
-                                .asClass()
-                                .methods()) {
+                        for (MethodInfo method : bean.getTarget().get().asClass().methods()) {
                             if (annotationStore.hasAnnotation(method, NAME_INCOMING)
                                     || annotationStore.hasAnnotation(method, NAME_OUTGOING)) {
                                 // TODO: validate method params and return type?
@@ -91,6 +95,19 @@ public void validate(ValidationContext validationContext) {
                         }
                     }
                 }
+
+                for (InjectionPointInfo injectionPoint : validationContext.get(Key.INJECTION_POINTS)) {
+                    if (injectionPoint.getRequiredType().name().equals(NAME_EMITTER)) {
+                        AnnotationInstance stream = injectionPoint.getRequiredQualifier(NAME_STREAM);
+                        if (stream != null) {
+                            // Stream.value() is mandatory
+                            String name = stream.value().asString();
+                            LOGGER.debugf("Emitter injection point '%s' detected, stream name: '%s'",
+                                    injectionPoint.getTargetInfo(), name);
+                            emitters.produce(new EmitterBuildItem(name));
+                        }
+                    }
+                }
             }
         });
     }
@@ -105,6 +122,7 @@ public List<UnremovableBeanBuildItem> removalExclusions() {
     @Record(STATIC_INIT)
     public void build(SmallRyeReactiveMessagingTemplate template, BeanContainerBuildItem beanContainer,
             List<MediatorBuildItem> mediatorMethods,
+            List<EmitterBuildItem> emitterFields,
             BuildProducer<ReflectiveClassBuildItem> reflectiveClass) {
         /*
          * IMPLEMENTATION NOTE/FUTURE IMPROVEMENTS: It would be possible to replace the reflection completely and use Jandex and
@@ -124,7 +142,8 @@ public void build(SmallRyeReactiveMessagingTemplate template, BeanContainerBuild
                         .getIdentifier());
             }
         }
-        template.registerMediators(beanClassToBeanId, beanContainer.getValue());
+        template.registerMediators(beanClassToBeanId, beanContainer.getValue(),
+                emitterFields.stream().map(EmitterBuildItem::getName).collect(Collectors.toList()));
     }
 
 }

extensions/smallrye-reactive-messaging/deployment/src/test/java/io/quarkus/smallrye/reactivemessaging/SimpleBean.java

@@ -3,7 +3,6 @@
 import java.util.List;
 import java.util.concurrent.CopyOnWriteArrayList;
 
-import javax.annotation.PostConstruct;
 import javax.enterprise.context.ApplicationScoped;
 
 import org.eclipse.microprofile.reactive.messaging.Incoming;

extensions/smallrye-reactive-messaging/runtime/src/main/java/io/quarkus/smallrye/reactivemessaging/runtime/SmallRyeReactiveMessagingTemplate.java

@@ -1,5 +1,6 @@
 package io.quarkus.smallrye.reactivemessaging.runtime;
 
+import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
@@ -15,9 +16,10 @@
 @Template
 public class SmallRyeReactiveMessagingTemplate {
 
-    public void registerMediators(Map<String, String> beanClassToBeanId, BeanContainer container) {
+    public void registerMediators(Map<String, String> beanClassToBeanId, BeanContainer container, List<String> emitters) {
         // Extract the configuration and register mediators
         MediatorManager mediatorManager = container.instance(MediatorManager.class);
+        mediatorManager.initializeEmitters(emitters);
         for (Entry<String, String> entry : beanClassToBeanId.entrySet()) {
             try {
                 Class<?> beanClass = Thread.currentThread()

independent-projects/arc/processor/src/main/java/io/quarkus/arc/processor/InjectionPointInfo.java

@@ -26,6 +26,8 @@
 import java.util.function.Predicate;
 import org.jboss.jandex.AnnotationInstance;
 import org.jboss.jandex.AnnotationTarget;
+import org.jboss.jandex.AnnotationTarget.Kind;
+import org.jboss.jandex.DotName;
 import org.jboss.jandex.FieldInfo;
 import org.jboss.jandex.MethodInfo;
 import org.jboss.jandex.Type;
@@ -126,6 +128,15 @@ public Set<AnnotationInstance> getRequiredQualifiers() {
         return typeAndQualifiers.qualifiers;
     }
 
+    public AnnotationInstance getRequiredQualifier(DotName name) {
+        for (AnnotationInstance qualifier : typeAndQualifiers.qualifiers) {
+            if (qualifier.name().equals(name)) {
+                return qualifier;
+            }
+        }
+        return null;
+    }
+
     public boolean hasDefaultedQualifier() {
         return hasDefaultedQualifier;
     }