Automate File Classification with Apache Camel

We usually download several files to the Downloads folder, you might find various files in diverse formats like MP3, PDF, docs, srt , MP4 etc.Then you start moving the files from download folder to other folders, which can be very tiresome and monotonous task.

In this post i am gonna show how to shift all your files from Downloads folder to respective folder, by using a simple Apache Camel route.

Apache Camel is a rule-based routing and mediation engine that provides a Java object-based implementation of the Enterprise Integration Patterns using an API (or declarative Java Domain Specific Language) to configure routing and mediation rules.

Lets first create a simple Spring Boot maven project

Create a maven project and include spring Boot and Apache Camel dependencies.

	<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/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.file.organizer</groupId>
	<artifactId>file_organizer_camel</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>1.5.9.RELEASE</version>
	<relativePath/>
	</parent>
	<properties>
	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
	<java.version>1.8</java.version>
	</properties>
	<dependencies>
	<dependency>
	<groupId>org.apache.camel</groupId>
	<artifactId>camel-spring-boot-starter</artifactId>
	<version>2.19.2</version>
	</dependency>
	<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-test</artifactId>
	<scope>test</scope>
	</dependency>
	</dependencies>
	<build>
	<plugins>
	<plugin>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-maven-plugin</artifactId>
	</plugin>
	</plugins>
	</build>
	</project>

view raw pom.xml hosted with ❤ by GitHub

Now create the Spring Boot main file as

	package com.filetransfer;
	import org.springframework.boot.SpringApplication;
	import org.springframework.boot.autoconfigure.SpringBootApplication;
	@SpringBootApplication
	public class SpringBootMain {
	public static void main(String[] args) {
	SpringApplication.run(SpringBootMain.class, args);
	}
	}

view raw SpringBootMain.java hosted with ❤ by GitHub

Next, we add a class with the Camel routes.This routes will be started automatically.

	package com.filetransfer;
	import org.apache.camel.Predicate;
	import org.apache.camel.builder.PredicateBuilder;
	import org.apache.camel.builder.RouteBuilder;
	import org.springframework.stereotype.Component;
	@Component
	public class SimpleRouteBuilder extends RouteBuilder {
	@Override
	public void configure() throws Exception {
	Predicate predicate = PredicateBuilder.and(simple("${file:name.ext} == 'pdf'"));
	Predicate predicate1 = PredicateBuilder.and(simple("${file:name.ext} == 'txt'"));
	Predicate predicate2 = PredicateBuilder.and(simple("${file:name.ext} == 'mp4'"));
	Predicate predicate3 = PredicateBuilder.and(simple("${file:name.ext} == 'mp3'"));
	from("file:C://downloads?noop=true").choice()
	.when(predicate).to("file:D://Documents");
	.when(predicate1).to("file:D://Text_Files");
	.when(predicate2).to("file:D://Vidoes");
	.when(predicate3).to("file:D://Music");
	}
	}

view raw RouteBuilder.java hosted with ❤ by GitHub

To keep the main thread blocked so that Camel stays up, add camel.springboot.main-run-controller=true to the application.properties

camel.springboot.main-run-controller=true

view raw application.properties hosted with ❤ by GitHub

Run this Program in ide or in a console and you will see all your files are sorted.

Hope you liked the post!