CAMEL-21913: jbang - make JPA easier to use and export

dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/ExportBaseCommand.java

@@ -705,6 +705,11 @@ protected Set<String> resolveDependencies(Path settings, Path profile) throws Ex
             }
         }
 
+        // automatic add hibernate as JPA provider when using camel-jpa
+        if (answer.stream().anyMatch(s -> s.contains("camel-jpa") || s.equals("camel:jpa"))) {
+            answer.add("mvn:org.hibernate.orm:hibernate-core");
+        }
+
         // remove duplicate versions (keep first)
         Map<String, String> versions = new HashMap<>();
         Set<String> toBeRemoved = new HashSet<>();

dsl/camel-jbang/camel-jbang-core/src/main/resources/quarkus-dependencies.properties

@@ -16,4 +16,5 @@
 ## ---------------------------------------------------------------------------
 
 org.messaginghub\:pooled-jms = io.quarkiverse.messaginghub:quarkus-pooled-jms
+org.hibernate.orm\:hibernate-core = io.quarkus:quarkus-hibernate-orm
 camel\:resilience4j = org.apache.camel.quarkus:camel-quarkus-microprofile-fault-tolerance

dsl/camel-jbang/camel-jbang-core/src/test/java/org/apache/camel/dsl/jbang/core/commands/ExportTest.java

@@ -188,6 +188,35 @@ private Export createCommand(RuntimeType rt, String[] files, String... args) {
         return command;
     }
 
+    @ParameterizedTest
+    @MethodSource("runtimeProvider")
+    public void shouldExportWithJpaAndHibernate(RuntimeType rt) throws Exception {
+        LOG.info("shouldExportWithJpaAndHibernate {}", rt);
+        Export command = new Export(new CamelJBangMain());
+        CommandLine.populateCommand(command, "--gav=examples:route:1.0.0", "--dir=" + workingDir,
+                "--runtime=%s".formatted(rt.runtime()), "--dep=camel:jpa", "target/test-classes/route.yaml");
+        int exit = command.doCall();
+
+        Assertions.assertEquals(0, exit);
+        Model model = readMavenModel();
+
+        if (rt == RuntimeType.main) {
+            Assertions.assertTrue(containsDependency(model.getDependencies(), "org.apache.camel", "camel-jpa", null));
+            Assertions.assertTrue(
+                    containsDependency(model.getDependencies(), "org.hibernate.orm", "hibernate-core", null));
+        } else if (rt == RuntimeType.springBoot) {
+            Assertions.assertTrue(
+                    containsDependency(model.getDependencies(), "org.apache.camel.springboot", "camel-jpa-starter", null));
+            Assertions.assertTrue(
+                    containsDependency(model.getDependencies(), "org.hibernate.orm", "hibernate-core", null));
+        } else if (rt == RuntimeType.quarkus) {
+            Assertions.assertTrue(
+                    containsDependency(model.getDependencies(), "org.apache.camel.quarkus", "camel-quarkus-jpa", null));
+            Assertions.assertTrue(
+                    containsDependency(model.getDependencies(), "io.quarkus", "quarkus-hibernate-orm", null));
+        }
+    }
+
     @ParameterizedTest
     @MethodSource("runtimeProvider")
     public void shouldExportLazyBean(RuntimeType rt) throws Exception {

dsl/camel-kamelet-main/src/main/java/org/apache/camel/main/download/DependencyDownloaderComponentResolver.java

@@ -108,6 +108,12 @@ public Component resolveComponent(String name, CamelContext context) {
                 downloadLoader(quartz.getGroupId(), quartz.getArtifactId(), quartz.getVersion());
             }
         }
+        if ("jpa".equals(name)) {
+            // include hibernate as JPA provider
+            if (!downloader.alreadyOnClasspath("org.hibernate.orm", "hibernate-core", null)) {
+                downloader.downloadDependency("org.hibernate.orm", "hibernate-core", "${hibernate-version}");
+            }
+        }
         if ("activemq".equals(name) || "activemq6".equals(name)) {
             // need to include JMS connection-pool (trigger class loader to download correct JAR)
             try {