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The following commit(s) were added to refs/heads/main by this push:
new fbd5513 CAMEL-22214: camel-groovy - Allow to pre-load groovy source
files for shared functions and DTOs
fbd5513 is described below
commit fbd551353e74e56acf85c617d636dc930c545a63
Author: Claus Ibsen <[email protected]>
AuthorDate: Tue Jul 15 13:31:30 2025 +0200
CAMEL-22214: camel-groovy - Allow to pre-load groovy source files for
shared functions and DTOs
---
README.adoc | 11 +-
groovy/README.adoc | 37 +++++++
groovy/data/order.json | 4 +
groovy/pom.xml | 117 +++++++++++++++++++++
.../src/main/java/sample/camel/MyApplication.java | 35 ++++++
groovy/src/main/resources/application.properties | 22 ++++
.../main/resources/camel-groovy/OrderDTO.groovy | 10 ++
.../resources/camel-groovy/OrderService.groovy | 5 +
.../src/main/resources/camel/my-route.camel.yaml | 24 +++++
groovy/src/main/resources/log4j2.properties | 23 ++++
pom.xml | 1 +
11 files changed, 286 insertions(+), 3 deletions(-)
diff --git a/README.adoc b/README.adoc
index eacf1fa..bf279ec 100644
--- a/README.adoc
+++ b/README.adoc
@@ -27,7 +27,7 @@ readme's instructions.
=== Examples
// examples: START
-Number of Examples: 63 (0 deprecated)
+Number of Examples: 64 (0 deprecated)
[width="100%",cols="4,2,4",options="header"]
|===
@@ -37,6 +37,8 @@ Number of Examples: 63 (0 deprecated)
| link:endpointdsl/readme.adoc[Endpointdsl] (endpointdsl) | Beginner | Using
type-safe Endpoint DSL
+| link:groovy/README.adoc[Groovy] (groovy) | Beginner | An example for showing
Camel Spring Boot using YAML with Groovy scripts
+
| link:kamelet-chucknorris/readme.adoc[Kamelet Chucknorris]
(kamelet-chucknorris) | Beginner | How easy it is to create your own Kamelets
| link:pojo/README.adoc[Pojo] (pojo) | Beginner | An example showing how to
work with Camel POJO routing with Spring Boot
@@ -96,6 +98,7 @@ Number of Examples: 63 (0 deprecated)
| link:fhir/readme.adoc[Fhir] (fhir) | Health Care | An example showing how to
work with Camel, FHIR and Spring Boot
| link:fhir-auth-tx/readme.adoc[Fhir Auth Tx] (fhir-auth-tx) | Health Care |
An example showing how to work with Camel, FHIR Authorization, FHIR Transaction
and Spring Boot
+
| link:validator/readme.adoc[Validator Spring Boot] (validator) | Input/Output
Type Contract | An example showing how to work with declarative validation and
Spring Boot
@@ -111,6 +114,7 @@ Number of Examples: 63 (0 deprecated)
| link:metrics/README.adoc[Metrics] (metrics) | Management and Monitoring | An
example showing how to work with Camel and Spring Boot and report metrics to
Graphite
| link:observation/README.adoc[Micrometer Observation] (observation) |
Management and Monitoring | An example showing how to trace incoming and
outgoing messages from Camel with Micrometer Observation
+
| link:opentelemetry/README.adoc[OpenTelemetry] (opentelemetry) | Management
and Monitoring | An example showing how to use Camel with OpenTelemetry
@@ -137,15 +141,16 @@ Number of Examples: 63 (0 deprecated)
| link:widget-gadget/README.adoc[Widget Gadget] (widget-gadget) | Messaging |
The widget and gadget example from EIP book, running on Spring Boot
| link:reactive-streams/readme.adoc[Reactive Streams] (reactive-streams) |
Reactive | An example that shows how Camel can exchange data using reactive
streams with Spring Boot reactor
+
| link:http-ssl/README.adoc[Http Ssl] (http-ssl) | Rest | An example showing
the Camel HTTP component with Spring Boot and SSL
+| link:http-streaming/README.adoc[Http Streaming] (http-streaming) | Rest | An
example showing large data stream scenario using Camel Platform HTTP component
+
| link:openapi-contract-first/readme.adoc[Openapi Contract First]
(openapi-contract-first) | Rest | Contract First OpenAPI example
| link:platform-http/README.adoc[Platform Http] (platform-http) | Rest | An
example showing Camel REST DSL with platform HTTP
-| link:http-streaming/README.adoc[Http Streaming] (http-streaming) | Rest |
This example shows how to stream large files using platform HTTP component
-
| link:rest-cxf/README.adoc[Rest Cxf] (rest-cxf) | Rest | An example showing
Camel REST using CXF with Spring Boot
| link:rest-openapi/README.adoc[Rest Openapi] (rest-openapi) | Rest | An
example showing Camel REST DSL and OpenApi with Spring Boot
diff --git a/groovy/README.adoc b/groovy/README.adoc
new file mode 100644
index 0000000..ded73db
--- /dev/null
+++ b/groovy/README.adoc
@@ -0,0 +1,37 @@
+== Spring Boot Example with Yaml DSL and Groovy
+
+=== Introduction
+
+This example shows how to run Camel Spring Boot (YAML routes) with Groovy
scripts
+for small functions and DTO classes.
+
+The Groovy source is located in `src/main/resources/camel-groovy`, which
+are pre-compiled on startup.
+
+This allows Camel routes to use the Groovy classes (as if they were Java
classes).
+The route will then transform a JSon file into a DTO class using Jackson, and
then
+enrich the DTO based on some business logic that are inlined Groovy script in
the Camel route.
+
+=== Build
+
+You can build this example using:
+
+ $ mvn package
+
+=== Run
+
+You can run this example using:
+
+ $ mvn spring-boot:run
+
+And you should see output in the console.
+
+=== Help and contributions
+
+If you hit any problem using Camel or have some feedback, then please
+https://camel.apache.org/community/support/[let us know].
+
+We also love contributors, so
+https://camel.apache.org/community/contributing/[get involved] :-)
+
+The Camel riders!
diff --git a/groovy/data/order.json b/groovy/data/order.json
new file mode 100644
index 0000000..c66544b
--- /dev/null
+++ b/groovy/data/order.json
@@ -0,0 +1,4 @@
+{
+ "id": 432,
+ "name": "Acme"
+}
\ No newline at end of file
diff --git a/groovy/pom.xml b/groovy/pom.xml
new file mode 100644
index 0000000..7028f68
--- /dev/null
+++ b/groovy/pom.xml
@@ -0,0 +1,117 @@
+<?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/maven-v4_0_0.xsd";>
+
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.apache.camel.springboot.example</groupId>
+ <artifactId>examples</artifactId>
+ <version>4.14.0-SNAPSHOT</version>
+ </parent>
+
+ <artifactId>camel-example-spring-boot-groovy</artifactId>
+ <name>Camel SB Examples :: Groovy</name>
+ <description>An example for showing Camel Spring Boot using YAML with
Groovy scripts</description>
+
+ <properties>
+ <category>Beginner</category>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+ </properties>
+
+ <dependencyManagement>
+ <dependencies>
+ <!-- Camel BOM -->
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-spring-boot-bom</artifactId>
+ <version>${project.version}</version>
+ <type>pom</type>
+ <scope>import</scope>
+ </dependency>
+ <!-- Spring Boot BOM -->
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-dependencies</artifactId>
+ <version>${spring-boot-version}</version>
+ <type>pom</type>
+ <scope>import</scope>
+ </dependency>
+ </dependencies>
+ </dependencyManagement>
+
+ <dependencies>
+
+ <!-- Spring Boot -->
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter</artifactId>
+ </dependency>
+
+ <!-- Camel -->
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-spring-boot-starter</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-yaml-dsl-starter</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-groovy-starter</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-file-starter</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-jackson-starter</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-log-starter</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-timer-starter</artifactId>
+ </dependency>
+
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-maven-plugin</artifactId>
+ <version>${spring-boot-version}</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>repackage</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+</project>
diff --git a/groovy/src/main/java/sample/camel/MyApplication.java
b/groovy/src/main/java/sample/camel/MyApplication.java
new file mode 100644
index 0000000..eacdf24
--- /dev/null
+++ b/groovy/src/main/java/sample/camel/MyApplication.java
@@ -0,0 +1,35 @@
+/*
+ * 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 sample.camel;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * A sample Spring Boot application that starts the Camel routes.
+ */
+@SpringBootApplication
+public class MyApplication {
+
+ /**
+ * A main method to start this application.
+ */
+ public static void main(String[] args) {
+ SpringApplication.run(MyApplication.class, args);
+ }
+
+}
diff --git a/groovy/src/main/resources/application.properties
b/groovy/src/main/resources/application.properties
new file mode 100644
index 0000000..4483727
--- /dev/null
+++ b/groovy/src/main/resources/application.properties
@@ -0,0 +1,22 @@
+## ---------------------------------------------------------------------------
+## 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.
+## ---------------------------------------------------------------------------
+
+# give Camel a name
+camel.main.name = GroovyExample
+
+# keep camel running
+camel.main.run-controller = true
diff --git a/groovy/src/main/resources/camel-groovy/OrderDTO.groovy
b/groovy/src/main/resources/camel-groovy/OrderDTO.groovy
new file mode 100644
index 0000000..a3a371e
--- /dev/null
+++ b/groovy/src/main/resources/camel-groovy/OrderDTO.groovy
@@ -0,0 +1,10 @@
+class OrderDTO {
+
+ int id
+ String name
+ String level;
+
+ String toString() {
+ return "Order " + id + " from " + name + " (" + level + ")"
+ }
+}
diff --git a/groovy/src/main/resources/camel-groovy/OrderService.groovy
b/groovy/src/main/resources/camel-groovy/OrderService.groovy
new file mode 100644
index 0000000..7eed31a
--- /dev/null
+++ b/groovy/src/main/resources/camel-groovy/OrderService.groovy
@@ -0,0 +1,5 @@
+class OrderService {
+ static boolean isGold(dto) {
+ return dto.id > 1000
+ }
+}
diff --git a/groovy/src/main/resources/camel/my-route.camel.yaml
b/groovy/src/main/resources/camel/my-route.camel.yaml
new file mode 100644
index 0000000..42d7a91
--- /dev/null
+++ b/groovy/src/main/resources/camel/my-route.camel.yaml
@@ -0,0 +1,24 @@
+- route:
+ from:
+ uri: file
+ parameters:
+ directoryName: data
+ noop: true
+ steps:
+ - unmarshal:
+ json:
+ library: Jackson
+ unmarshalType: OrderDTO
+ - setVariable:
+ name: level
+ expression:
+ groovy:
+ expression: |-
+ gold = OrderService.isGold(body)
+ return gold ? "Gold" : "Silver"
+ - script:
+ expression:
+ groovy:
+ expression: body.level = variable.level
+ - log:
+ message: ${body}
diff --git a/groovy/src/main/resources/log4j2.properties
b/groovy/src/main/resources/log4j2.properties
new file mode 100644
index 0000000..d9f0508
--- /dev/null
+++ b/groovy/src/main/resources/log4j2.properties
@@ -0,0 +1,23 @@
+## ---------------------------------------------------------------------------
+## 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.
+## ---------------------------------------------------------------------------
+
+appender.out.type = Console
+appender.out.name = out
+appender.out.layout.type = PatternLayout
+appender.out.layout.pattern = [%30.30t] %-30.30c{1} %-5p %m%n
+rootLogger.level = INFO
+rootLogger.appenderRef.out.ref = out
diff --git a/pom.xml b/pom.xml
index 1329ee9..a209f56 100644
--- a/pom.xml
+++ b/pom.xml
@@ -45,6 +45,7 @@
<module>aws-secrets-manager</module>
<module>aws2-s3</module>
<module>endpointdsl</module>
+ <module>groovy</module>
<module>fhir</module>
<module>fhir-auth-tx</module>
<module>health-checks</module>
