Apache Camel Simple Routing Example

Apache Camel

Apache Camel is a simple routing engine which provides the implementation of Enterprise Integration Pattern using Java or other Domain specific language. See more about  Apache Camel  and Enterprise Integration Patterns. In this example we are going to create a simple Router to copy files from one directory to another directory upon starting Camel Context.

Environment Setup

Create a maven project and add below dependency

<dependency>
            <groupId>org.apache.camel</groupId>
            <artifactId>camel-core</artifactId>
            <version>2.12.1</version>
        </dependency>

Create a Java class to implement Router and start Camel

package com.vinod.test;

import java.io.File;

import org.apache.camel.CamelContext;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.impl.DefaultCamelContext;

public class CamelSimpleRouteExample {

    public static void main(String[] args) {
        try {
            CamelContext context = new DefaultCamelContext();
            context.addRoutes(new RouteBuilder() {
                public void configure() {
                    from("file://source").to("file://destination");
                }
            });
            context.start();
            File ff = new File("source//Temp.txt");
            ff.createNewFile();
            Thread.sleep(1000);
            context.stop();
            System.out.println("Done");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

Run it...
After running this program we can see the default source and destination directories are created and transferring the Temp.txt in to destination folder.

Download example
https://github.com/kkvinodkumaran/camel

Reference

Apache Camel