ElementTree serialized to ObjectProxy, not XML

[jhaislip]

I recently setup pyAMF with mod_python. I wrote test services that return the various datatypes of interest (DateTime, List, Bool, etc). I then accessed those services from a Flex application and saw that the serialization into Flex data types was working (Date, Array, Bool, etc). All of the data types I tested worked as they are supposed to except for one: ElementTree.

In my service, I have:

from pyamf.remoting.gateway.wsgi import WSGIGateway
import elementtree.ElementTree as ET

def getXML():
    root = Element("root")

    SubElement(root, "one")
    SubElement(root, "two")
    SubElement(root, "three")
    SubElement(root, "four")
    return root

# Expose our services:
services = {
    'service.getXML': getXML
}

GatewayController = WSGIGateway(services)

Here is the Flex:

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
                                horizontalAlign="center" verticalAlign="middle">
        
        <mx:RemoteObject id="remoteObj" endpoint="http://localhost:80/services" destination="service"
        result="displayResult(event)" fault="remoteFault(event)">
        </mx:RemoteObject>
        
        <mx:Button click="handleGetXML(event)" label="Get XML"/>
                
        
        <mx:Text id="result" width="100%" height="100%"/>

<mx:Script>
<![CDATA[
import mx.utils.ObjectUtil;
import mx.rpc.events.ResultEvent;
import mx.rpc.events.FaultEvent;


private function displayResult(re:ResultEvent): void {
    result.text = ObjectUtil.toString(re.result) + "\n";
}
private function remoteFault(fault:FaultEvent): void {
    result.text = ObjectUtil.toString(fault);
}
private function handleGetXML(evt:MouseEvent):void {
        remoteObj.getXML()
}
]]>
</mx:Script>

        
</mx:Application>

When I access the service from Flex, it returns an ObjectProxy and not an XML.

[thijs]

Moving to milestone 0.4.

[thijs]

It was confirmed (on IRC) that this is working with 0.3.1 and a 0.4/trunk issue only.

[nick]

Branching to source:pyamf/branches/etree-checking-426

[nick]

I amended the xml lib initialisation code to check in order for all libraries available and to check for each type when encoding xml elements.

When decoding PyAMF will use the first implementation is comes across.

This is the order:

1. xml.etree.cElementTree 2. cElementTree 3. xml.etree.ElementTree 4. elementtree.ElementTree

Tests have been added to ensure that all libs are compatible.

[thijs]

The new method needs @since: 0.4 markup.

[nick]

Done.

[thijs]

If it works with the latest EchoTest, and passes the tests on feisley's buildslaves, then it can be merged.

[nick]

Checked EchoTest and slaves - all good.

I have merged to trunk in r1992 and to source:pyamf/branches/release-0.4 in r1993.