By Anirban Sen Chowdhary

Have you wondered that your Mule application can be run from a Java class ?

Yes, it’s true .. You can run your entire Mule flow from a small java class

So, how can we run a Mule application from Java ????

To start you Mule flow or app from Java, you need to refer Mule Context.

To know more about MuleContext, please visit :-https://www.mulesoft.org/docs/site/current3/apidocs/org/mule/api/MuleEventContext.html

Just like Spring Context, Mule will combine all resource files into a single ApplicationContext, whether they are "pure" Spring files or Mule configuration files.

So let us consider, we have our Mule config file named as MuleTest.xml :-

Here you can see set payload component is followed after http inbound endpoint which will send the payload and will be displayed in the browser, which is followed by a logger to log message into console

Now, let’s create a Java class that will run our Mule application as follows :-

.

As you can see that in the Java class, we are using MuleContext for starting our application.Here using the following line in the code :-

SpringXmlConfigurationBuilder configBuilder = new SpringXmlConfigurationBuilder("MuleTest.xml");

We are loading our MuleTest.xml file.

Now, if there would have multiple XML file in our application, we would have used a comma-separated list or an array of configuration files the following :-

SpringXmlConfigurationBuilder configBuilder = new SpringXmlConfigurationBuilder(new String[] { "mule-config.xml", "another-config.xml" });

That’s it .. Now let us run our Java class to start our Mule application as follows :-

Now, we find that the Mule application is getting deployed in Mule server and running :-

So we will be testing our flow by hitting the url :-http://localhost:8060/startfromjava in browser and will get the following result :

Also in the console we will get the following log by the logger :-

That’s it … Now you can try this example by your own and can run your single or multiple Mule XML from you Java code..Hope you enjoyed this little trick …I have also posted this on my blog :-http://anirbansenchowdhary.com/blog/?p=201

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