This tutorial illustrates is how to generate a stream of SAX events from a CSV stream and how that stream of SAX events feeds into Smooks to generate an XML model that can be transformed further (in this case it is not).

 

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To Build: "mvn clean install"

To Run: "mvn exec:java"

Transforming from CSV to XML

This is a very simple example that illustrates how Smooks to configure in a non-XML stream parser (CSV) into Smooks.

So here's the source csv file that is to be transformed:

Tom,Fennelly,Male,4,Ireland
Mike,Fennelly,Male,2,Ireland

And this is the expected result of our transformation (as generated by the CSVParser):

<csv-set>
	<csv-record>
		<firstname>Tom</firstname>
		<lastname>Fennelly</lastname>
		<gender>Male</gender>
		<age>4</age>
		<country>Ireland</country>
	</csv-record>
	<csv-record>
		<firstname>Mike</firstname>
		<lastname>Fennelly</lastname>
		<gender>Male</gender>
		<age>2</age>
		<country>Ireland</country>
	</csv-record>
</csv-set>

The Smooks Configuration

We simply specify the CSVParser as the stream parser. More transformation configurations could be added to transform this message further.

Here's the configuration ("smooks-config.xml"):

<?xml version="1.0"?>
<smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.0.xsd">

	<!--Configure the CSVParser to parse the message into a stream of SAX events. -->
	<resource-config selector="org.xml.sax.driver">
		<resource>org.milyn.csv.CSVParser</resource>
		<param name="fields" type="string-list">firstname,lastname,gender,age,country</param>
	</resource-config>

</smooks-resource-list>

Executing The Transformation

Again, it's exactly the same as with the java-basic tutorial:

Smooks smooks = new Smooks("smooks-config.xml");
StringResult result = new StringResult();

smooks.filter(new StreamSource(messageIn), result);

Of course, you'd typically cache the Smooks

 instance.

See the example/Main.java in the example source.