Orbeon Forms community mailing list

Re: Decoding base64Binary

Posted by Erik Bruchez on
URL: https://discuss.orbeon.com/Decoding-base64Binary-tp25132p25137.html

Right now, you have processors that convert:

o Base64 or text to HTTP stream (HTTP serializer)

o Base64 or text to file (File serializer)

o XML to XML, XHTML, HTML to text serialization

There was no processor taking Base64 and converting that to parsed XML,
but since that was easy to implement this is now fixed: there is a new
To-XML Converter which does this job. This is an example of use:

<p:config xmlns:p="http://www.orbeon.com/oxf/pipeline"
xmlns:oxf="http://www.orbeon.com/oxf/processors">

<p:param type="output" name="data"/>

<p:processor name="oxf:url-generator">
<p:input name="config">
<config>
<url>parsing-view.xsl</url>
<content-type>binary/octet-stream</content-type>
<force-content-type>true</force-content-type>
</config>
</p:input>
<p:output name="data" id="xml-file-as-binary"/>
</p:processor>

<p:processor name="oxf:to-xml-converter">
<p:input name="data" href="#xml-file-as-binary"/>
<p:input name="config">
<config/>
</p:input>
<p:output name="data" ref="data"/>
</p:processor>

</p:config>

If you are receiving the Base64 code from a web service, you will have
first to extract the Base64 data and encapsulated it into a <document>
element such as this one:

<document xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:type="xs:base64Binary" content-type="binary/octet-stream">
... Base64 ...
</document>

This will be available in the next build:

http://forge.objectweb.org/nightlybuilds/ops/ops/

-Erik

Taras Bahnyuk wrote:

> You are not alone,
>
> just see my posts and post from Boon Low.
> We don't know how to do anything else with the imported data but stream
> it.
> And we need help on that.
> Welcome to the club.
>
> Cheers,
> Taras
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]]
> Sent: woensdag 31 augustus 2005 13:44
> To: [hidden email]
> Subject: [ops-users] Decoding base64Binary
>
> I'm calling a web service (SOAP), and the results are returned as
> base64Binary.
>
> The results are actually an XML document (this is being encoded by the
> web service and returned as a base64Binary stream).
>
> I want to decode the base64Binary data back into an XML document so I
> can process it.
>
> I've tried using the oxf:xml-converter, but with no joy.
>
> For example:
> ==========
> <p:processor name="oxf:xml-converter">
> <p:input name="config">
> <config>
> <content-type>application/xml</content-type>
> <encoding>utf-8</encoding>
> <version>1.0</version>
> </config>
> </p:input>
> <p:input name="data">
> <document
> xsi:type="xs:base64Binary">PGRhdGE+ZXhhbXBsZTwvZGF0YT4=</document>
> </p:input>
> <p:output name="data" ref="data"/>
> </p:processor>
> ==========
>
> In this case, the decoded data is actually:
> <data>example</data>
>
> The results of the above are the whole of the data input, as-is,
> embedded within <document></document> tags.
>
> I can use the oxf:http-serializer processor to stream the base64 data
> straight to the browser and view the XML that way; but I can't figure
> out a way of converting it into an XML output that can be consumed by
> other processors.
>
>
>
>
>
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>
>
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