Proper way to register a custom type converter

[Cliff Meyers]

Hi All,

I was wondering what is the proper way to register a custom type
converter.  We've created one so that we can handle
System.Collections.Generic.IList appropriately and it works fine with
RPC / RemoteObject calls.  However it doesn't appear to be getting
picked up when we push messages over RTMP; any instances of IList come
back to the client as null.  Right now we use the following code in
Global.asax:

void Application_Start(object sender, EventArgs e) {
        System.ComponentModel.TypeDescriptor.AddAttributes(
            typeof(FluorineFx.AMF3.ArrayCollection),
            new Attribute[] {
                new
System.ComponentModel.TypeConverterAttribute(typeof(NCash.GenericCollectionTypeConverter))
            }
        );
    }

It seems like there should be another place to do this, perhaps in
Web.config in the Fluorine sections?

Thanks,

-Cliff

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[Cliff Meyers]

Hi All,

Update on this issue.  I was headed in the wrong direction with the
TypeConverter but here is what I have discovered:

If I try to send an object as the body of an AsyncMessage over RTMP,
all collection types in this object are sent as Array rather than
ArrayCollection.  Basically I am seeing the same behavior as if I were
to set "legacy-collection=true" on an AMFChannel.  Is there a way to
support sending of ArrayCollection over an RTMPChannel?  From what I
can tell there is no such "legacy-collection" property on RtmpChannel
or RtmpEndpoint and the logic to apply "legacy-collection" behavior
via filters only exists in AMFEndpoint.

Thanks,

-Cliff


On Sat, Apr 4, 2009 at 10:23 PM, Cliff Meyers <cliff.meyers@...> wrote:

> Hi All,
>
> I was wondering what is the proper way to register a custom type
> converter.  We've created one so that we can handle
> System.Collections.Generic.IList appropriately and it works fine with
> RPC / RemoteObject calls.  However it doesn't appear to be getting
> picked up when we push messages over RTMP; any instances of IList come
> back to the client as null.  Right now we use the following code in
> Global.asax:
>
> void Application_Start(object sender, EventArgs e) {
>        System.ComponentModel.TypeDescriptor.AddAttributes(
>            typeof(FluorineFx.AMF3.ArrayCollection),
>            new Attribute[] {
>                new
> System.ComponentModel.TypeConverterAttribute(typeof(NCash.GenericCollectionTypeConverter))
>            }
>        );
>    }
>
> It seems like there should be another place to do this, perhaps in
> Web.config in the Fluorine sections?
>
> Thanks,
>
> -Cliff
>

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[Support-179]

Hi Cliff,

This issue was fixed in the SVN version (RtmptProtocolEncoder.cs).
You can get the modified sources and the binaries too from the SVN and
replace in your FluorineFx installation (it will show up as v1.0.0.16).

There is also a breaking change I wrote about: "legacy-collection" element
must be moved under <properties><serialization>.
  <channels>
    <channel-definition id="my-amf"
class="mx.messaging.channels.AMFChannel">
      <endpoint
uri="http://{server.name}:{server.port}/{context.root}/Gateway.aspx"
class="flex.messaging.endpoints.AMFEndpoint"/>
      <properties>
        <serialization>
          <!--<legacy-collection>false</legacy-collection>-->
          <!--<legacy-throwable>true</legacy-throwable>-->
        </serialization>
      </properties>
    </channel-definition>
  </channels>

Zoli

-----Original Message-----
From: fluorine-bounces@...
[mailto:fluorine-bounces@...] On Behalf Of Cliff
Meyers
Sent: Tuesday, April 07, 2009 4:03 AM
To: fluorine@...
Subject: Re: [Fluorine] Proper way to register a custom type converter

Hi All,

Update on this issue.  I was headed in the wrong direction with the
TypeConverter but here is what I have discovered:

If I try to send an object as the body of an AsyncMessage over RTMP, all
collection types in this object are sent as Array rather than
ArrayCollection.  Basically I am seeing the same behavior as if I were to
set "legacy-collection=true" on an AMFChannel.  Is there a way to support
sending of ArrayCollection over an RTMPChannel?  From what I can tell there
is no such "legacy-collection" property on RtmpChannel or RtmpEndpoint and
the logic to apply "legacy-collection" behavior via filters only exists in
AMFEndpoint.

Thanks,

-Cliff


On Sat, Apr 4, 2009 at 10:23 PM, Cliff Meyers <cliff.meyers@...>
wrote:

> Hi All,
>
> I was wondering what is the proper way to register a custom type
> converter.  We've created one so that we can handle
> System.Collections.Generic.IList appropriately and it works fine with
> RPC / RemoteObject calls.  However it doesn't appear to be getting
> picked up when we push messages over RTMP; any instances of IList come
> back to the client as null.  Right now we use the following code in
> Global.asax:
>
> void Application_Start(object sender, EventArgs e) {
>        System.ComponentModel.TypeDescriptor.AddAttributes(
>            typeof(FluorineFx.AMF3.ArrayCollection),
>            new Attribute[] {
>                new
> System.ComponentModel.TypeConverterAttribute(typeof(NCash.GenericColle
> ctionTypeConverter))
>            }
>        );
>    }
>
> It seems like there should be another place to do this, perhaps in
> Web.config in the Fluorine sections?
>
> Thanks,
>
> -Cliff
>

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entgroup.com


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