On Mon, Mar 16, 2015 at 2:21 AM, 博凱 Kevin <kevin@anonymised.com> wrote:
Hello everyone,
I have a problem that I’m want to implement a capability of WFS-T, which
can let other sources(for instance, mobile apps) send image files back(in
base64 formate) to WFS server.
But, when GeoServer receives a XML request, normally it can find the
most appropriate XML reader to parse request content automatically,
however, I cant find an appropriate approach to parse my customize XML
schema(extend WFS and GML).
Is there any possibilities that I can *mount my XML reader* onto
GeoServer and use it, if so, how to do it? (In the Line 1247 of
Dispatcher.java, it find all readers like magic).
XML readers are not really meant to be replaced, and I don't think this was
done before, but there is something you might try:
* locate in the wfs applicationContex.xml the xml reader you want to replace
* if you are working in a fork, just remove it, and declare your
replacement xml reader in its place
* if you are trying to do this with a plugin instead, in your plugin
applicationContex.xml declare a black listing bean that would kill the
normal reader, and then declare your reader in the same app context file.
Here is an example I have in a geoserver customization, removing the normal
format options kvp parser by name:
<bean id="wmsFormatOptionsBlackLister"
class="org.geoserver.platform.NameExclusionFilter">
<property name="beanId" value="wmsFormatOptionsKvpParser"/>
</bean>
That said... if I were in your position, I'd try to send GeoServer an
normal WFS-T request, with the image base64 encoded as one of the feature
fields, and fix the gt-xsd-gml module that does the parsing to also parse
the base64 field (assuming this is the problem of course)
Hope this helps
Cheers
Andrea
--
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Ing. Andrea Aime
@geowolf
Technical Lead
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