Re: [xml-dev] I processed a 3GB XML file ... using XSLT streaming
Both streaming and projection are automatically deployed by the processor when possible.
<schools>{
for $node in doc('massachusetts.osm')/osm/node
where $node/tag/@k = 'amenity' and $node/tag/@v = 'school'
return
<school>{$node/tag[@k eq 'name']/@v}</school>
}</schools>
Ivan
On Fri, Sep 13, 2013 at 12:03 PM, Costello, Roger L. <[email protected]> wrote:
Martin Honnen wrote:Oops! I guess that I sent an old version of my program. Sorry about that. Thanks for catching this Martin!
> Where do you generate that list? The streaming version of
> your program seems to just output a 'count' element but
> not 'Schools' nor 'school' elements.
Here is the correct version:
<Schools>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
exclude-result-prefixes="#all"
version="3.0">
<xsl:output method="xml" />
<xsl:template match="/">
<xsl:stream href="../huge-file/massachusetts.xml">
<xsl:for-each select="osm">
<xsl:iterate select="node">
<xsl:param name="count" select="1" as="xs:decimal"/><xsl:variable name="thisNode" select="copy-of(.)"/>
<xsl:choose>
<xsl:when test="$thisNode/tag[(@k eq 'amenity') and (@v eq 'school')]">
<school>
<xsl:value-of select="$count" /><xsl:text>. </xsl:text>
<xsl:value-of select="$thisNode/tag[@k eq 'name']/@v" />
</school>
<xsl:next-iteration></xsl:when>
<xsl:with-param name="count" select="$count+1"/>
</xsl:next-iteration>
<xsl:otherwise>
<xsl:next-iteration>
<xsl:with-param name="count" select="$count"/>
</xsl:next-iteration>
</xsl:otherwise>
</xsl:choose>
</xsl:iterate>
</xsl:for-each>
</Schools>
</xsl:stream>
</xsl:template>
</xsl:stylesheet>
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