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commit b91d58609a4b94ffb87908c105429b26981d2469
Author: Nicola Ferraro <ni.ferr...@gmail.com>
AuthorDate: Mon Jan 13 10:11:10 2020 +0100
CAMEL-14385: support cron component in camel-spring
---
.../camel-cron/src/main/docs/cron-component.adoc | 3 +-
components/camel-spring/pom.xml | 5 ++
components/camel-spring/src/main/docs/spring.adoc | 26 +++++++++
.../component/cron/CamelSpringCronService.java | 62 ++++++++++++++++++++++
.../camel/component/cron/SpringCronConsumer.java | 36 +++++++++++++
.../camel/component/cron/SpringCronEndpoint.java | 42 +++++++++++++++
...pache.camel.component.cron.api.CamelCronService | 18 +++++++
.../camel/component/cron/SpringCronRouteTest.java | 41 ++++++++++++++
.../org/apache/camel/component/cron/cron.xml | 36 +++++++++++++
9 files changed, 268 insertions(+), 1 deletion(-)
diff --git a/components/camel-cron/src/main/docs/cron-component.adoc
b/components/camel-cron/src/main/docs/cron-component.adoc
index aa991e2..b4d2288 100644
--- a/components/camel-cron/src/main/docs/cron-component.adoc
+++ b/components/camel-cron/src/main/docs/cron-component.adoc
@@ -15,7 +15,8 @@ the implementation of their choice.
The following standard Camel components support the Cron endpoints:
-- Quartz
+- Camel-quartz
+- Camel-spring
The Cron component is also supported in **Camel K**, which can use the
Kubernetes scheduler to trigger the routes when required by the cron expression.
Camel K does not require additional libraries to be plugged when using cron
expressions compatible with Kubernetes cron syntax.
diff --git a/components/camel-spring/pom.xml b/components/camel-spring/pom.xml
index 75a83b3..a061848 100644
--- a/components/camel-spring/pom.xml
+++ b/components/camel-spring/pom.xml
@@ -54,6 +54,11 @@
<artifactId>camel-core-xml</artifactId>
</dependency>
<dependency>
+ <groupId>org.apache.camel</groupId>
+ <artifactId>camel-cron</artifactId>
+ <optional>true</optional>
+ </dependency>
+ <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
</dependency>
diff --git a/components/camel-spring/src/main/docs/spring.adoc
b/components/camel-spring/src/main/docs/spring.adoc
index b3c9a37..cb9dbc9 100644
--- a/components/camel-spring/src/main/docs/spring.adoc
+++ b/components/camel-spring/src/main/docs/spring.adoc
@@ -379,3 +379,29 @@ Integration] for further injections.
To avoid a hung route when testing using Spring Transactions see the
note about Spring Integration Testing under Transactional Client.
+== Cron Component Support
+
+Camel-spring can be used as implementation of the Camel Cron component.
+
+
+Maven users will need to add the following additional dependency to their
`pom.xml`:
+
+[source,xml]
+------------------------------------------------------------
+<dependency>
+ <groupId>org.apache.camel</groupId>
+ <artifactId>camel-cron</artifactId>
+ <version>x.x.x</version>
+ <!-- use the same version as your Camel core version -->
+</dependency>
+------------------------------------------------------------
+
+Users can then use the cron component inside routes of their Spring or
Spring-boot application:
+
+[source,xml]
+----
+<route>
+ <from uri="cron:tab?schedule=0/1+*+*+*+*+?"/>
+ <to uri="log:info"/>
+</route>
+----
diff --git
a/components/camel-spring/src/main/java/org/apache/camel/component/cron/CamelSpringCronService.java
b/components/camel-spring/src/main/java/org/apache/camel/component/cron/CamelSpringCronService.java
new file mode 100644
index 0000000..723fa1e
--- /dev/null
+++
b/components/camel-spring/src/main/java/org/apache/camel/component/cron/CamelSpringCronService.java
@@ -0,0 +1,62 @@
+/*
+ * 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.component.cron;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.camel.CamelContext;
+import org.apache.camel.CamelContextAware;
+import org.apache.camel.Endpoint;
+import org.apache.camel.component.cron.api.CamelCronConfiguration;
+import org.apache.camel.component.cron.api.CamelCronService;
+
+/**
+ * Allows camel-spring to be used as implementation for camel-cron endpoints.
+ */
+public class CamelSpringCronService implements CamelCronService,
CamelContextAware {
+
+ private CamelContext context;
+
+ @Override
+ public Endpoint createEndpoint(CamelCronConfiguration configuration)
throws Exception {
+ CronComponent cronComponent = context.getComponent("cron",
CronComponent.class);
+ String uri = "cron:" + configuration.getName();
+ SpringCronEndpoint cronEndpoint = new SpringCronEndpoint(uri,
cronComponent);
+ Map<String, Object> options = new HashMap<>();
+ options.put("scheduler", "spring");
+ options.put("scheduler.cron", configuration.getSchedule());
+ cronEndpoint.configureProperties(options);
+ return cronEndpoint;
+ }
+
+ @Override
+ public String getId() {
+ return "spring";
+ }
+
+ @Override
+ public void setCamelContext(CamelContext camelContext) {
+ this.context = camelContext;
+ }
+
+ @Override
+ public CamelContext getCamelContext() {
+ return this.context;
+ }
+
+}
diff --git
a/components/camel-spring/src/main/java/org/apache/camel/component/cron/SpringCronConsumer.java
b/components/camel-spring/src/main/java/org/apache/camel/component/cron/SpringCronConsumer.java
new file mode 100644
index 0000000..217d9e7
--- /dev/null
+++
b/components/camel-spring/src/main/java/org/apache/camel/component/cron/SpringCronConsumer.java
@@ -0,0 +1,36 @@
+/*
+ * 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.component.cron;
+
+import org.apache.camel.Endpoint;
+import org.apache.camel.Exchange;
+import org.apache.camel.Processor;
+import org.apache.camel.support.ScheduledPollConsumer;
+
+public class SpringCronConsumer extends ScheduledPollConsumer {
+
+ public SpringCronConsumer(Endpoint endpoint, Processor processor) {
+ super(endpoint, processor);
+ }
+
+ @Override
+ protected int poll() throws Exception {
+ Exchange exchange = getEndpoint().createExchange();
+ getProcessor().process(exchange);
+ return 1;
+ }
+}
diff --git
a/components/camel-spring/src/main/java/org/apache/camel/component/cron/SpringCronEndpoint.java
b/components/camel-spring/src/main/java/org/apache/camel/component/cron/SpringCronEndpoint.java
new file mode 100644
index 0000000..5a92687
--- /dev/null
+++
b/components/camel-spring/src/main/java/org/apache/camel/component/cron/SpringCronEndpoint.java
@@ -0,0 +1,42 @@
+/*
+ * 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.component.cron;
+
+import org.apache.camel.Component;
+import org.apache.camel.Consumer;
+import org.apache.camel.Processor;
+import org.apache.camel.Producer;
+import org.apache.camel.support.ScheduledPollEndpoint;
+
+public class SpringCronEndpoint extends ScheduledPollEndpoint {
+
+ public SpringCronEndpoint(String endpointUri, Component component) {
+ super(endpointUri, component);
+ }
+
+ @Override
+ public Producer createProducer() throws Exception {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public Consumer createConsumer(Processor processor) throws Exception {
+ SpringCronConsumer consumer = new SpringCronConsumer(this, processor);
+ configureConsumer(consumer);
+ return consumer;
+ }
+}
diff --git
a/components/camel-spring/src/main/resources/META-INF/services/org.apache.camel.component.cron.api.CamelCronService
b/components/camel-spring/src/main/resources/META-INF/services/org.apache.camel.component.cron.api.CamelCronService
new file mode 100644
index 0000000..b65cde4
--- /dev/null
+++
b/components/camel-spring/src/main/resources/META-INF/services/org.apache.camel.component.cron.api.CamelCronService
@@ -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.
+#
+
+org.apache.camel.component.cron.CamelSpringCronService
diff --git
a/components/camel-spring/src/test/java/org/apache/camel/component/cron/SpringCronRouteTest.java
b/components/camel-spring/src/test/java/org/apache/camel/component/cron/SpringCronRouteTest.java
new file mode 100644
index 0000000..2452fcd
--- /dev/null
+++
b/components/camel-spring/src/test/java/org/apache/camel/component/cron/SpringCronRouteTest.java
@@ -0,0 +1,41 @@
+/*
+ * 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.component.cron;
+
+import org.apache.camel.component.mock.MockEndpoint;
+import org.apache.camel.spring.SpringTestSupport;
+import org.junit.Test;
+import org.springframework.context.support.AbstractXmlApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+public class SpringCronRouteTest extends SpringTestSupport {
+ protected MockEndpoint resultEndpoint;
+
+ @Test
+ public void testCronSpringRoute() throws Exception {
+ resultEndpoint = getMockEndpoint("mock:result");
+ resultEndpoint.expectedMinimumMessageCount(1);
+
+ // lets test the receive worked
+ resultEndpoint.assertIsSatisfied();
+ }
+
+ @Override
+ protected AbstractXmlApplicationContext createApplicationContext() {
+ return new
ClassPathXmlApplicationContext("org/apache/camel/component/cron/cron.xml");
+ }
+}
diff --git
a/components/camel-spring/src/test/resources/org/apache/camel/component/cron/cron.xml
b/components/camel-spring/src/test/resources/org/apache/camel/component/cron/cron.xml
new file mode 100644
index 0000000..37fd5f2
--- /dev/null
+++
b/components/camel-spring/src/test/resources/org/apache/camel/component/cron/cron.xml
@@ -0,0 +1,36 @@
+<?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.
+
+-->
+<beans xmlns="http://www.springframework.org/schema/beans";
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+ xsi:schemaLocation="
+ http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
+ http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd
+ ">
+
+ <camelContext xmlns="http://camel.apache.org/schema/spring";>
+
+ <route>
+ <from uri="cron:tab?schedule=0/1+*+*+*+*+?"/>
+ <to uri="mock:result"/>
+ </route>
+
+ </camelContext>
+
+</beans>
