I've been asked off-list how to create a simple XSLT transformation in OXF with XPL. Here is how you could go about this, assuming you want to see the result either as a file on disk or as XML in your Web browser:
1) Create a new entry in config/controller.xml for your test page, for example:
<page id="simple" path-info="/simple" model="oxf:/simple/model.xpl"/>
2) Create a new file, simple/model.xpl, containing your transformation, for example:
<p:config xmlns:p="http://www.orbeon.com/oxf/pipeline";>
<p:processor uri="oxf/processor/xslt">
<p:input name="data" href="foo.xml"/>
<p:input name="config" href="foo.xsl"/>
<p:output name="data" id="result"/>
</p:processor> <p:processor uri="oxf/processor/file-serializer">
<p:input name="data" href="#result"/>
<p:input name="config">
<config>
<file>c:/test.xml</file>
</config>
</p:input>
</p:processor></p:config>
3) Create your two input files, simple/foo.xml, and simple/foo.xsl.
4) Hit /oxf/simple with your Web browser, and the result will be output to c:/test.xml.
If you want to output the result as XML to your Web browser, you can change simple.xpl as follows:
<p:config xmlns:p="http://www.orbeon.com/oxf/pipeline";>
<p:processor uri="oxf/processor/xslt">
<p:input name="data" href="foo.xml"/>
<p:input name="config" href="foo.xsl"/>
<p:output name="data" id="result"/>
</p:processor> <p:processor uri="oxf/processor/xml-serializer">
<p:input name="data" href="#result"/>
<p:input name="config">
<config/>
</p:input>
</p:processor></p:config>
You can even embed your stylesheet and source data in your XPL file, as follows:
<p:config xmlns:p="http://www.orbeon.com/oxf/pipeline";>
<p:processor uri="oxf/processor/xslt">
<p:input name="data">
<list>
<item>1</item>
<item>2</item>
<item>3</item>
</list>
</p:input>
<p:input name="config">
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:template match="/">
<xsl:copy-of select="*"/>
</xsl:template>
</xsl:stylesheet>
</p:input>
<p:output name="data" id="result"/>
</p:processor>
<p:processor uri="oxf/processor/xml-serializer">
<p:input name="data" href="#result"/>
<p:input name="config">
<config/>
</p:input>
</p:processor></p:config>
This is particularly useful if your transformations and XML documents are short.
-Erik
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