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Posted to commits@camel.apache.org by lb...@apache.org on 2020/01/28 11:22:37 UTC
[camel] branch master updated: Add a RouteBuilderLifecycleStrategy
to intercept RouteBuilder related events
This is an automated email from the ASF dual-hosted git repository.
lburgazzoli pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/camel.git
The following commit(s) were added to refs/heads/master by this push:
new 041ebb0 Add a RouteBuilderLifecycleStrategy to intercept RouteBuilder related events
041ebb0 is described below
commit 041ebb03ed508b7ff32e13ff4ef20f5241b4d00e
Author: lburgazzoli <lb...@gmail.com>
AuthorDate: Mon Jan 27 19:51:37 2020 +0100
Add a RouteBuilderLifecycleStrategy to intercept RouteBuilder related events
---
.../org/apache/camel/builder/RouteBuilder.java | 30 +++++++++++++++++--
.../builder/RouteBuilderLifecycleStrategy.java | 34 ++++++++++++++++++++++
.../org/apache/camel/builder/RouteBuilderTest.java | 29 ++++++++++++++++++
3 files changed, 90 insertions(+), 3 deletions(-)
diff --git a/core/camel-core-engine/src/main/java/org/apache/camel/builder/RouteBuilder.java b/core/camel-core-engine/src/main/java/org/apache/camel/builder/RouteBuilder.java
index 2d3e5d9..4fc6bef 100644
--- a/core/camel-core-engine/src/main/java/org/apache/camel/builder/RouteBuilder.java
+++ b/core/camel-core-engine/src/main/java/org/apache/camel/builder/RouteBuilder.java
@@ -71,6 +71,7 @@ public abstract class RouteBuilder extends BuilderSupport implements RoutesBuild
private List<TransformerBuilder> transformerBuilders = new ArrayList<>();
private List<ValidatorBuilder> validatorBuilders = new ArrayList<>();
private RoutesDefinition routeCollection = new RoutesDefinition();
+ private final List<RouteBuilderLifecycleStrategy> lifecycleInterceptors = new ArrayList<>();
public RouteBuilder() {
this(null);
@@ -96,7 +97,7 @@ public abstract class RouteBuilder extends BuilderSupport implements RoutesBuild
/**
* Add routes to a context using a lambda expression. It can be used as
* following:
- *
+ *
* <pre>
* RouteBuilder.addRoutes(context, rb ->
* rb.from("direct:inbound").bean(ProduceTemplateBean.class)));
@@ -209,7 +210,7 @@ public abstract class RouteBuilder extends BuilderSupport implements RoutesBuild
/**
* Create a new {@code TransformerBuilder}.
- *
+ *
* @return the builder
*/
public TransformerBuilder transformer() {
@@ -220,7 +221,7 @@ public abstract class RouteBuilder extends BuilderSupport implements RoutesBuild
/**
* Create a new {@code ValidatorBuilder}.
- *
+ *
* @return the builder
*/
public ValidatorBuilder validator() {
@@ -469,6 +470,20 @@ public abstract class RouteBuilder extends BuilderSupport implements RoutesBuild
getRouteCollection().setErrorHandlerFactory(getErrorHandlerBuilder());
}
+ /**
+ * Adds the given {@link RouteBuilderLifecycleStrategy} to be used.
+ */
+ public void addLifecycleInterceptor(RouteBuilderLifecycleStrategy interceptor) {
+ lifecycleInterceptors.add(interceptor);
+ }
+
+ /**
+ * Adds the given {@link RouteBuilderLifecycleStrategy}.
+ */
+ public void removeLifecycleInterceptor(RouteBuilderLifecycleStrategy interceptor) {
+ lifecycleInterceptors.remove(interceptor);
+ }
+
// Implementation methods
// -----------------------------------------------------------------------
protected void checkInitialized() throws Exception {
@@ -478,12 +493,21 @@ public abstract class RouteBuilder extends BuilderSupport implements RoutesBuild
if (camelContext.adapt(ExtendedCamelContext.class).getErrorHandlerFactory() instanceof ErrorHandlerBuilder) {
setErrorHandlerBuilder((ErrorHandlerBuilder)camelContext.adapt(ExtendedCamelContext.class).getErrorHandlerFactory());
}
+
+ for (RouteBuilderLifecycleStrategy interceptor : lifecycleInterceptors) {
+ interceptor.beforeConfigure(this);
+ }
+
configure();
// mark all route definitions as custom prepared because
// a route builder prepares the route definitions correctly already
for (RouteDefinition route : getRouteCollection().getRoutes()) {
route.markPrepared();
}
+
+ for (RouteBuilderLifecycleStrategy interceptor : lifecycleInterceptors) {
+ interceptor.afterConfigure(this);
+ }
}
}
diff --git a/core/camel-core-engine/src/main/java/org/apache/camel/builder/RouteBuilderLifecycleStrategy.java b/core/camel-core-engine/src/main/java/org/apache/camel/builder/RouteBuilderLifecycleStrategy.java
new file mode 100644
index 0000000..dc6b8d4
--- /dev/null
+++ b/core/camel-core-engine/src/main/java/org/apache/camel/builder/RouteBuilderLifecycleStrategy.java
@@ -0,0 +1,34 @@
+/*
+ * 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.builder;
+
+/**
+ * Strategy for {@link RouteBuilder} lifecycle notifications.
+ */
+public interface RouteBuilderLifecycleStrategy {
+ /**
+ * This method is invoked before the {@link RouteBuilder#configure()} method is invoked.
+ */
+ default void beforeConfigure(RouteBuilder builder) {
+ }
+
+ /**
+ * This method is invoked after the {@link RouteBuilder#configure()} method is invoked.
+ */
+ default void afterConfigure(RouteBuilder builder) {
+ }
+}
diff --git a/core/camel-core/src/test/java/org/apache/camel/builder/RouteBuilderTest.java b/core/camel-core/src/test/java/org/apache/camel/builder/RouteBuilderTest.java
index 39adcdb..e5d6063 100644
--- a/core/camel-core/src/test/java/org/apache/camel/builder/RouteBuilderTest.java
+++ b/core/camel-core/src/test/java/org/apache/camel/builder/RouteBuilderTest.java
@@ -19,6 +19,7 @@ package org.apache.camel.builder;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
import org.apache.camel.CamelContext;
import org.apache.camel.Channel;
@@ -542,4 +543,32 @@ public class RouteBuilderTest extends TestSupport {
assertEquals(2, routes.size());
}
+
+ @Test
+ public void testLifecycleInterceptor() throws Exception {
+ AtomicInteger before = new AtomicInteger();
+ AtomicInteger after = new AtomicInteger();
+
+ RouteBuilder builder = new RouteBuilder() {
+ public void configure() throws Exception {
+ }
+ };
+
+ builder.addLifecycleInterceptor(new RouteBuilderLifecycleStrategy() {
+ @Override
+ public void beforeConfigure(RouteBuilder builder) {
+ before.incrementAndGet();
+ }
+ @Override
+ public void afterConfigure(RouteBuilder builder) {
+ after.incrementAndGet();
+ }
+ });
+
+ DefaultCamelContext context = new DefaultCamelContext();
+ context.addRoutes(builder);
+
+ assertEquals(1, before.get());
+ assertEquals(1, after.get());
+ }
}