JBoss Community Archive (Read Only)

Teiid Examples

Import from XML over http

Import, model and test XML data source over HTTP connection

This article will guide you through an example of connecting to an XML document over HTTP as a relational source, using Teiid Designer.  It is assumed that you have already installed Teiid Designer version 7.6 or higher.  This article is part of a complete demo, but can be used as a stand-alone demo for setting up and testing your XML over HTTP sources.


Start your local teiid server instance

    NOTE: We will use the Data Preview capability to test our XML source which requires Teiid Designer to be connected to a running server containing Teiid submodule.

In Teiid Designer's Guides view select the Model Remote XML File Source action set

Define Teiid Model Project

  • Double-click Define Teiid Model Project action

  • Select New... button, enter project name (i.e. MyXmlSource) and click Finish

  • Click OK

Create XML URL Connection Profile

  • Double-click Create Teiid Remote XML connection action

  • On the New Connection Profile page, XML File URL Source should be selected.  Enter PlantCatalogXML for the profile name, then click Next

  • Enter the Connection URL:  *http://www.w3schools.com/xml/plant_catalog.xml*

  • Click Test Connection button to verify the URL is live then click Finish

Create Source Model Rrom XML Source

  • Double-click Create source model from remote XML file source action to launch the Import From XML File Source wizard

  • Click Next

    • XML Import mode should be set to XML file via remote URL

  • XML Data Files Source Selection page should be complete including selected PlantCatalogXML connection, temporary local XML file, project location set as well as a default source model name defined\

    • Keep source model name ( xml_plant_catalog4709489427151235248_Source) or simplify (i.e. xml_plant_catalog_Source)

  • Click Next

  • On the XML Data File Import Options page_, expand_ CATALOG schema and expand first PLANT element

  • Select PLANT element, right-click select Set as root path action.

  • Double-click COMMON, ZONE and PRICE to add as output columns for your result set.

    • The Generated SQL Statement panel contains the transformation of your XML data into relational column data via SELECT * FROM statement.

  • Click Next

    • On this page you can define the target view model where the generated view will be created.

    • You can simplify both the View Model name and generated view table name for this source

    • i.e. xml_plant_catalog_View model and plant_info view

  • Click Finish

    • You will see two additional Models in the Model Explorer view, PlantCatalogSource and PlantCatalogView.  The source model contains a single invokeHttp function, which retrieves the contents at the specified URL.  The PlantCatalogView model contains a single Plants view table, which exposes the data as a relational table.

  • Insure all models are saved.

Test Your Generated Procedure

  • Double-click Preview Data action

  • In the Preview Data dialog_, click_ browse (...) button and select your new virtual table (i.e. plant_info) in xml_plan_catalog_View model

  • Click OK

  • Query results will be shown in the SQL Results view

Defined Your VDB

  • Double-click Define VDB action to launch the Define VDB dialog

  • Click the New... button

  • The wizard should already be populated with the PlantCatalogView model.

  • Click OK

Test Your VDB

  • Double-click Execute VDB action

    • This action

      • Checks that a default server exists and is running

      • Deploys your VBD to the server and creates or locates required data sources

      • Creates a JDBC connection to the deployed VDB via the Eclipse Data Tools framework

      • Opens a SQL Editor window containing a simple query template

      • Enter your desired query statement, select the statement text and right-click select Execute Selected Text

      • Query results will also be displayed in the SQL Results view

Congratulations, you have successfully connected to XML over HTTP!

JBoss.org Content Archive (Read Only), exported from JBoss Community Documentation Editor at 2020-03-13 13:14:07 UTC, last content change 2014-03-07 19:12:04 UTC.