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Posted to commits@camel.apache.org by da...@apache.org on 2019/03/05 06:25:03 UTC

[camel] 06/07: CAMEL-13283: Add example

This is an automated email from the ASF dual-hosted git repository.

davsclaus pushed a commit to branch bind
in repository https://gitbox.apache.org/repos/asf/camel.git

commit e23466692d005a456fc12f81a62e8a3e9d4fa371
Author: Claus Ibsen <cl...@gmail.com>
AuthorDate: Tue Mar 5 05:51:21 2019 +0100

     CAMEL-13283: Add example
---
 examples/camel-example-main/pom.xml                | 85 ++++++++++++++++++++++
 examples/camel-example-main/readme.adoc            | 13 ++++
 .../org/apache/camel/example/MyApplication.java    | 80 ++++++++++++++++++++
 .../src/main/resources/log4j2.properties           | 23 ++++++
 examples/pom.xml                                   |  1 +
 5 files changed, 202 insertions(+)

diff --git a/examples/camel-example-main/pom.xml b/examples/camel-example-main/pom.xml
new file mode 100644
index 0000000..f2c9489
--- /dev/null
+++ b/examples/camel-example-main/pom.xml
@@ -0,0 +1,85 @@
+<?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.example</groupId>
+    <artifactId>examples</artifactId>
+    <version>3.0.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>camel-example-main</artifactId>
+  <packaging>jar</packaging>
+  <name>Camel :: Example :: Main</name>
+  <description>An example for showing standalone Camel</description>
+
+  <properties>
+    <category>Beginner</category>
+  </properties>
+
+  <dependencies>
+
+    <dependency>
+      <groupId>org.apache.camel</groupId>
+      <artifactId>camel-core</artifactId>
+    </dependency>
+
+    <!-- logging -->
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-api</artifactId>
+      <scope>runtime</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-core</artifactId>
+      <scope>runtime</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-slf4j-impl</artifactId>
+      <scope>runtime</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-jul</artifactId>
+      <scope>runtime</scope>
+    </dependency>
+
+  </dependencies>
+
+  <build>
+    <plugins>
+      <!-- Allows the example to be run via 'mvn camel:run' -->
+      <plugin>
+        <groupId>org.apache.camel</groupId>
+        <artifactId>camel-maven-plugin</artifactId>
+        <version>${project.version}</version>
+        <configuration>
+          <mainClass>org.apache.camel.example.MyApplication</mainClass>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>
diff --git a/examples/camel-example-main/readme.adoc b/examples/camel-example-main/readme.adoc
new file mode 100644
index 0000000..18aef79
--- /dev/null
+++ b/examples/camel-example-main/readme.adoc
@@ -0,0 +1,13 @@
+# Camel Example Main
+
+This example shows how to run Camel standalone via the built-in Main class.
+
+## How to run
+
+You can run this example using
+
+    mvn camel:run   
+
+## More information
+
+You can find more information about Apache Camel at the website: http://camel.apache.org/
diff --git a/examples/camel-example-main/src/main/java/org/apache/camel/example/MyApplication.java b/examples/camel-example-main/src/main/java/org/apache/camel/example/MyApplication.java
new file mode 100644
index 0000000..e60df81
--- /dev/null
+++ b/examples/camel-example-main/src/main/java/org/apache/camel/example/MyApplication.java
@@ -0,0 +1,80 @@
+/**
+ * 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.example;
+
+import java.util.Date;
+import java.util.Objects;
+
+import org.apache.camel.Exchange;
+import org.apache.camel.Message;
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.main.Main;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class MyApplication {
+    private static final Logger LOGGER = LoggerFactory.getLogger(MyApplication.class);
+
+    private MyApplication() {
+    }
+
+    public static void main(String[] args) throws Exception {
+        Main main = new Main();
+        main.addRouteBuilder(new MyRouteBuilder());
+        main.run(args);
+    }
+
+    private static class MyRouteBuilder extends RouteBuilder {
+        @Override
+        public void configure() throws Exception {
+            from("timer:simple?period=503")
+                .id("simple-route")
+                .transform()
+                    .exchange(this::dateToTime)
+                .process()
+                    .message(this::log)
+                .process()
+                    .body(this::log)
+                .choice()
+                    .when()
+                        .body(Integer.class, b -> (b & 1) == 0)
+                        .log("Received even number")
+                    .when()
+                        .body(Integer.class, (b, h) -> h.containsKey("skip") ? false : (b & 1) == 0)
+                        .log("Received odd number")
+                    .when()
+                        .body(Objects::isNull)
+                        .log("Received null body")
+                    .when()
+                        .body(Integer.class, b -> (b & 1) != 0)
+                        .log("Received odd number")
+                .endChoice();
+        }
+
+        private Long dateToTime(Exchange e) {
+            return e.getProperty(Exchange.TIMER_FIRED_TIME, Date.class).getTime();
+        }
+
+        private void log(Object b) {
+            LOGGER.info("body is: {}", b);
+        }
+
+        private void log(Message m) {
+            LOGGER.info("message is: {}", m);
+        }
+    }
+}
diff --git a/examples/camel-example-main/src/main/resources/log4j2.properties b/examples/camel-example-main/src/main/resources/log4j2.properties
new file mode 100644
index 0000000..d406a9f
--- /dev/null
+++ b/examples/camel-example-main/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 = %d [%-15.15t] %-5p %-30.30c{1} - %m%n
+rootLogger.level = INFO
+rootLogger.appenderRef.out.ref = out
diff --git a/examples/pom.xml b/examples/pom.xml
index ab39b58..a5c5d8b 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -77,6 +77,7 @@
     <module>camel-example-loadbalancing</module>
     <module>camel-example-loan-broker-cxf</module>
     <module>camel-example-loan-broker-jms</module>
+    <module>camel-example-main</module>
     <module>camel-example-management</module>
     <module>camel-example-micrometer</module>	
     <module>camel-example-mybatis</module>