= xml-jaxp: Upload and Parse an XML File Using DOM or SAX
:author: Bartosz Baranowski
:productName: WildFly
:productNameFull: WildFly Application Server
:jbossHomeName: WILDFLY_HOME
:productVersion: 12
:buildRequirements: Java 8.0 (Java SDK 1.8) or later and Maven 3.3.1 or later
include::../shared-doc/attributes.adoc[]

:level: Intermediate
:technologies: JAXP, SAX, DOM, Servlet
:source: {githubRepoUrl}

[abstract]
The `xml-jaxp` quickstart demonstrates how to use Servlet and JSF to upload an XML file to {productName} and validate and parse it using DOM or SAX.

:standalone-server-type: default
:archiveType: war

== What is it?

The `xml-jaxp` quickstart is a simple Java EE JAXP example that demonstrates how to use Servlet 3.0 and JSF to upload an XML file to _{productNameFull}_ and parse it using DOM or SAX, both of which are built into Java. It also shows how to use modules available in {productName}.

This quickstart provides an example XML schema and document file to use when testing this quickstart.

* The XML schema is located here: `__QUICKSTART_HOME__/src/main/resources/catalog.xsd`
* The XML document is located here: `__QUICKSTART_HOME__/src/main/resources/catalog.xml`

//*************************************************
// Add System Requirements
//*************************************************
// == System Requirements
include::../shared-doc/system-requirements.adoc[leveloffset=+1]

//*************************************************
// Add Use of JBoss Home Name
//*************************************************
// == Use of {jbossHomeName}
include::../shared-doc/use-of-jboss-home-name.adoc[leveloffset=+1]

//*************************************************
// Start the server with the default profile
//*************************************************
// == Start the {productName} Standalone Server
include::../shared-doc/start-the-standalone-server.adoc[leveloffset=+1]

//*************************************************
// Build and deploy the quickstart WAR
//*************************************************
// == Build and Deploy the Quickstart
include::../shared-doc/build-and-deploy-the-quickstart.adoc[leveloffset=+1]


== Access the Application

The application will be running at the following URL: http://localhost:8080/{artifactId}/.

To test the quickstart, follow these steps.

. Click the *Browse* button and navigate to the `__QUICKSTART_HOME__/src/main/resources/catalog.xml` file.
. Click the *Upload* button. The XML file content is parsed and displayed on the page.
. You should see the following output in the server console that shows the DOMXMLParser was used:
+
[source,options="nowrap"]
----
INFO  [stdout] (http-/127.0.0.1:8080-1) Parsing the document using the DOMXMLParser!
----

To enable the alternative SAXXMLParser parser:

. Remove the comments that surround the alternate parser element in the `WEB-INF/beans.xml` file.
. Redeploy the application using the instructions above and access the application in a browser at the following URL: http://localhost:8080/{artifactId}/.
. Click the *Browse* button and navigate to the `__QUICKSTART_HOME__/src/main/resources/catalog.xml` file.
. Click the *Upload* button. The XML file content is parsed and displayed on the page.
. You should now see following output in the server console:
+
[source,options="nowrap"]
----
INFO  [stdout] (http-/127.0.0.1:8080-1) Parsing the document using the SAXXMLParser!
----


//*************************************************
// Undeploy the quickstart archive
//*************************************************
// == Undeploy the Quickstart
include::../shared-doc/undeploy-the-quickstart.adoc[leveloffset=+1]


//*************************************************
// Add JBoss Developer Studio instructions
//*************************************************
// == Run the Quickstart in Red Hat JBoss Developer Studio or Eclipse
include::../shared-doc/run-the-quickstart-in-jboss-developer-studio.adoc[leveloffset=+1]

//*************************************************
// Deploy the quickstart to OpenShift
//*************************************************
// == Deploy the Quickstart to OpenShift Online
include::../shared-doc/deploy-to-openshift-online.adoc[leveloffset=+1]

//*************************************************
// Add info to debug the application
//*************************************************
// == Debug the Application
include::../shared-doc/debug-the-application.adoc[leveloffset=+1]
