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|
Token
Attributes
| URI: | http://www.xml.org/pipe/xpe/filter/token |
| Type: | filter |
| Namespace: | http://www.xml.org/xpe/token |
| Owner: | http://www.xmlpipe.org/xpe |
Description
This filter generates unique token(s). The filter reacts to the following XML fragment:
<t:token xmlns:t="http://www.xml.org/xpe/token" />
The entire element is replaced by a unique token by the filter.
Example usage
The following example illustrates how the Token filter could be used within an XPE pipeline definition (xpipedef.xml) file:
<xpipeDef xmlns="http://www.xml.org/xml/pipe" >
<register uri="xslt/tokengen" >
<xslt href="ROOT/test/xslt/tokengen.xsl" />
</register>
<register uri="token" >
<xpipe>
<xnode type="http://www.xml.org/pipe/xpe/source/http" />
<xnode type="xslt/tokengen" />
<xnode type="http://www.xml.org/pipe/xpe/filter/token" />
<xsink type="http://www.xml.org/pipe/xpe/sink/http" >
<property name="method" value="xml" />
</xsink>
</xpipe>
</register>
</xpipeDef>
If tokengen.xsl contains the following:
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" >
<xsl:import href="copy.xsl" />
<xsl:output method="xml" />
<xsl:template match="http:httpRequest" >
<result xmlns="" >
<id>
<t:token xmlns:t="http://www.xml.org/xpe/token" />
</id>
</result>
</xsl:template>
</xsl:stylesheet>
Then executing the pipeline (via a HTTP GET) will produce XML similar to:
<result xmlns="" >
<id>
69f8dbaf:a
</id>
</result>