Fix #170: add support for webhook endpoints

camel-k-runtime-core/src/main/java/org/apache/camel/k/support/RuntimeSupport.java

@@ -207,4 +207,5 @@ public static RoutesLoader lookupLoaderFromResource(CamelContext context, String
 
         return loader;
     }
+
 }

camel-k-runtime-main/src/main/java/org/apache/camel/k/main/Application.java

@@ -36,7 +36,7 @@ public final class Application {
 
     private Application() {
     }
-    
+
     public static void main(String[] args) throws Exception {
         ApplicationRuntime runtime = new ApplicationRuntime();
         runtime.setProperties(PropertiesSupport.loadProperties());

camel-k-runtime-main/src/test/java/org/apache/camel/k/main/RuntimeTest.java

@@ -116,4 +116,5 @@ public void testLoadJavaSourceWithBeans() throws Exception {
             assertThat(b).hasFieldOrPropertyWithValue("name", "my-bean-name");
         });
     }
+
 }

camel-k-runtime-webhook/pom.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You 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.
+
+-->
+<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">
+    <parent>
+        <groupId>org.apache.camel.k</groupId>
+        <artifactId>camel-k-runtime-parent</artifactId>
+        <version>1.0.6-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>camel-k-runtime-webhook</artifactId>
+
+    <dependencies>
+
+        <!-- ****************************** -->
+        <!--                                -->
+        <!-- RUNTIME                        -->
+        <!--                                -->
+        <!-- ****************************** -->
+
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-core-engine</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-webhook</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel.k</groupId>
+            <artifactId>camel-k-runtime-core</artifactId>
+        </dependency>
+
+        <!-- ****************************** -->
+        <!--                                -->
+        <!-- TESTS                          -->
+        <!--                                -->
+        <!-- ****************************** -->
+
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-endpointdsl</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-properties</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-log</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-timer</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-undertow</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-rest</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-properties</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-main</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel.k</groupId>
+            <artifactId>camel-k-loader-js</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel.k</groupId>
+            <artifactId>camel-k-runtime-main</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>${log4j2.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>${log4j2.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.jboss.jandex</groupId>
+                <artifactId>jandex-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>make-index</id>
+                        <goals>
+                            <goal>jandex</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

camel-k-runtime-webhook/src/main/java/org/apache/camel/k/webhook/WebhookAction.java

@@ -0,0 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.camel.k.webhook;
+
+public enum WebhookAction {
+    REGISTER, UNREGISTER
+}

camel-k-runtime-webhook/src/main/java/org/apache/camel/k/webhook/WebhookContextCustomizer.java

@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.camel.k.webhook;
+
+import org.apache.camel.CamelContext;
+import org.apache.camel.k.ContextCustomizer;
+
+public class WebhookContextCustomizer implements ContextCustomizer {
+
+    private WebhookAction action;
+
+    public WebhookContextCustomizer() {
+    }
+
+    public WebhookAction getAction() {
+        return action;
+    }
+
+    public void setAction(WebhookAction action) {
+        this.action = action;
+    }
+
+    @Override
+    public void apply(CamelContext camelContext) {
+        if (action != null) {
+            camelContext.addRoutePolicyFactory(new WebhookRoutePolicyFactory(action));
+        }
+    }
+}

camel-k-runtime-webhook/src/main/java/org/apache/camel/k/webhook/WebhookRoutePolicyFactory.java

@@ -0,0 +1,100 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.camel.k.webhook;
+
+import org.apache.camel.CamelContext;
+import org.apache.camel.NamedNode;
+import org.apache.camel.Route;
+import org.apache.camel.RuntimeCamelException;
+import org.apache.camel.component.webhook.WebhookCapableEndpoint;
+import org.apache.camel.component.webhook.WebhookEndpoint;
+import org.apache.camel.spi.RoutePolicy;
+import org.apache.camel.spi.RoutePolicyFactory;
+import org.apache.camel.support.RoutePolicySupport;
+
+/**
+ * A RoutePolicyFactory that does not start any route but only registers/unregisters the webhook endpoints when enabled.
+ */
+public class WebhookRoutePolicyFactory implements RoutePolicyFactory {
+
+    private final WebhookAction action;
+
+    public WebhookRoutePolicyFactory(WebhookAction action) {
+        this.action = action;
+    }
+
+    @Override
+    public RoutePolicy createRoutePolicy(CamelContext camelContext, String routeId, NamedNode route) {
+        if (action != null) {
+            return new WebhookRoutePolicy(camelContext, action);
+        }
+        return null;
+    }
+
+    private class WebhookRoutePolicy extends RoutePolicySupport {
+
+        private final CamelContext context;
+
+        private final WebhookAction action;
+
+        public WebhookRoutePolicy(CamelContext context, WebhookAction action) {
+            this.context = context;
+            this.action = action;
+        }
+
+        @Override
+        public void onInit(Route route) {
+            super.onInit(route);
+            route.getRouteContext().setAutoStartup(false);
+
+            if (route.getEndpoint() instanceof WebhookEndpoint) {
+                WebhookEndpoint webhook = (WebhookEndpoint) route.getEndpoint();
+                if (webhook.getConfiguration() != null && webhook.getConfiguration().isWebhookAutoRegister()) {
+                    throw new IllegalStateException("Webhook auto-register is enabled on endpoint " + webhook + ": it must be disabled when the WebhookRoutePolicy is active");
+                }
+                executeWebhookAction(webhook.getEndpoint());
+            }
+        }
+
+        @Override
+        protected void doStart() throws Exception {
+            super.doStart();
+            context.getExecutorServiceManager().newThread("terminator", context::stop).start();
+        }
+
+        private void executeWebhookAction(WebhookCapableEndpoint endpoint) {
+            switch (this.action) {
+                case REGISTER:
+                    try {
+                        endpoint.registerWebhook();
+                    } catch (Exception ex) {
+                        throw new RuntimeCamelException("Unable to register webhook for endpoint " + endpoint, ex);
+                    }
+                    return;
+                case UNREGISTER:
+                    try {
+                        endpoint.unregisterWebhook();
+                    } catch (Exception ex) {
+                        throw new RuntimeCamelException("Unable to unregister webhook for endpoint " + endpoint, ex);
+                    }
+                    return;
+                default:
+                    throw new UnsupportedOperationException("Unsupported webhook action type: " + this.action);
+            }
+        }
+    }
+}

camel-k-runtime-webhook/src/main/resources/META-INF/services/org/apache/camel/k/customizer/webhook

@@ -0,0 +1,18 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+class=org.apache.camel.k.webhook.WebhookContextCustomizer