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Cc: "java-dev@axis.apache.org" <java-dev@axis.apache.org>
From: Anil Atyam <aanilkumar@gmail.com>
Subject: Re: getDataHandler returns Null.. AXIS2 1.2.11-- Smart Programming?
Date: Fri, 20 May 2011 16:32:31 -0400
To: "java-dev@axis.apache.org" <java-dev@axis.apache.org>

My apologies. I didn't mean to question the ability of the programmers. Ther=
e could be a compelling reason to do so which I don't follow. Otherwise, I h=
ave highest respect to these programmers and open source contributors.=20


Thanks
Anil Atyam
Ph: 703 473 0039


On May 20, 2011, at 3:48 PM, Andreas Veithen <andreas.veithen@gmail.com> wro=
te:

> You should be very, very careful before posting comments suggesting
> that the developers in this project are not doing "smart programming",
> especially if these comments tend to show your own inexperience in
> Java programming.
>=20
> I recommend reading the following article to learn about the do's and
> don'ts for a public mailing list:
>=20
> http://www.catb.org/~esr/faqs/smart-questions.html
>=20
>=20
> On Fri, May 20, 2011 at 19:40, Anil Atyam <aanilkumar@gmail.com> wrote:
>> Folks
>>=20
>>=20
>> getDataHandler method of org.apache.axiom.attachments.Attachments returns=

>> NULL when it can't find the content part it is looking based on the conte=
nt
>> id. Shouldn't it return something else? I  mean, if you return null its v=
ery
>> obvious that you get null pointer exception from this call is originiated=
,
>> in my case, org.apache.axiom.attachments.Attachments.getSOAPPartContentTy=
pe.
>>=20
>> I am not really sure why would you want to return null. Instead, You can
>> handle the null case and throw an exception stating, required content bas=
ed
>> on content id not found in message etc.
>>=20
>>=20
>>=20
>>=20
>>=20
>> I have copied my response MIME encoded message and please let me know if i=
ts
>> missing any MIME parts. My response schema has NO element of type
>> base64Binary, howerver, the response is MIME encoded.
>>=20
>>=20
>>=20
>>=20
>>=20
>> Checks whether the MIME part is already parsed by checking the attachment=
s
>> HashMap. If it is not parsed yet then call the getNextPart() till the
>> required part is found.
>>=20
>> Parameters: blobContentID (without the surrounding angle brackets and "ci=
d:"
>> prefix) Returns: The DataHandler of the mime part referred by the Content=
-Id
>> or *null* if the mime part referred by the content-id does not exist
>> Checks whether the MIME part is already parsed by checking the attachment=
s
>> HashMap. If it is not parsed yet then call the getNextPart() till the
>> required part is found.
>>=20
>> Parameters: blobContentID (without the surrounding angle brackets and "ci=
d:"
>> prefix) Returns: The DataHandler of the mime part referred by the Content=
-Id
>> or *null* if the mime part referred by the content-id does not exist
>>=20
>>=20
>>=20
>> 342    public DataHandler getDataHandler(String blobContentID) {
>> 343        DataHandler dataHandler;
>> 344        if (attachmentsMap.containsKey(blobContentID)) {
>> 345            dataHandler =3D (DataHandler)
>> attachmentsMap.get(blobContentID);
>> 346            return dataHandler;
>> 347        } else if (!noStreams) {
>> 348            //This loop will be terminated by the Exceptions thrown if=

>> the Mime
>> 349            // part searching was not found
>> 350            while ((dataHandler =3D this.getNextPartDataHandler()) !=3D=
 null)
>> {
>> 351                if (attachmentsMap.containsKey(blobContentID)) {
>> 352                    dataHandler =3D (DataHandler)
>> attachmentsMap.get(blobContentID);
>> 353                    return dataHandler;
>> 354                }
>> 355            }
>> 356        }
>> 357        return null;
>> 358    }
>>=20
>>=20
>>=20
>>=20
>> MIME encoded response from the server side.
>>=20
>>=20
>> HTTP/1.1 200 OK
>> Connection: close
>> Date: Thu, 12 May 2011 14:42:15 GMT
>> Server: Microsoft-IIS/6.0
>> X-Powered-By: ASP.NET
>> X-AspNet-Version: 2.0.50727
>> Cache-Control: private, max-age=3D0
>> Content-Type: multipart/related; type=3D"application/xop+xml";
>> boundary=3D--MIMEBoundary634407937359568655;
>> start=3D"<0.634407937359568655@example.org>"; start-info=3D"text/xml;
>> charset=3Dutf-8"
>> Content-Length: 890
>>=20
>> ----MIMEBoundary634407937359568655
>> content-id: <0.634407937359568655@example.org>
>> content-type: application/xop+xml; charset=3Dutf-8; type=3D"text/xml;
>> charset=3Dutf-8"
>> content-transfer-encoding: binary
>>=20
>> <soap:Envelope xmlns:xop=3D"http://www.w3.org/2004/08/xop/include"
>> xmlns:soap=3D"http://schemas.xmlsoap.org/soap/envelope/"
>> xmlns:xsi=3D"http://www.w3.org/2001/XMLSchema-instance"
>> xmlns:xsd=3D"http://www.w3.org/2001/XMLSchema"
>> xmlns:wsa=3D"http://schemas.xmlsoap.org/ws/2004/08/addressing"
>> xmlns:wsse=3D"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wss=
ecurity-secext-1.0.xsd"
>> xmlns:wsu=3D"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wsse=
curity-utility-1.0.xsd"><soap:Body><TravelDocumentNotificationRS
>> Version=3D"1.000" xmlns=3D"http://www.amtrak.com/schema/2010/01/01"><Succ=
ess
>> /></TravelDocumentNotificationRS></soap:Body></soap:Envelope>
>> ----MIMEBoundary634407937359568655--
>=20
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>=20

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