I have been having a similar problem but with the actual xml in the
body
of the SOAP message. I am trying to stream xml from a database to the
service output but am getting out of memory errors because
something in
Axis2 is buffering the data. The soap xml I am sending back is very
large (>100 MB). Here is some code that illustrates what I am
trying to do:
package org.regenstrief.query_tests;
import java.io.InputStream;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import org.apache.axiom.om.OMDocument;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.impl.builder.StAXOMBuilder;
import org.apache.axiom.om.impl.dom.DocumentImpl;
import org.apache.axiom.om.impl.dom.factory.OMDOMFactory;
import org.w3c.dom.Element;
public class TestCase
{
//service method that would get called by axis2
public OMElement processBody() throws Exception
{
DocumentImpl responseDoc = new DocumentImpl(new
OMDOMFactory());
Element resultXML =
responseDoc.createElement("queryDatasetReturnResponse");
OMElement rawdataNode = readDataSetXMLToDom();
((OMElement) resultXML).addChild(rawdataNode);
return (OMElement) resultXML;
}
private static OMElement readDataSetXMLToDom() throws Exception
{
OMElement resultElement = null;
OMDocument datasetDoc = null;
InputStream inputStream = null; //input stream pulled from
database
if (inputStream != null)
{
XMLStreamReader parser =
XMLInputFactory.newInstance().createXMLStreamReader(inputStream);
StAXOMBuilder builder = new StAXOMBuilder(parser);
datasetDoc = builder.getDocument();
resultElement = datasetDoc.getOMDocumentElement();
}
return resultElement;
}
}
Does axis2 support unlimited xml in the soap body?
Tammy
Davanum Srinivas wrote:
> Jochen,
>
> we are not taking about the SAAJ API, check the Attachments class in
> axiom. There is a method called getIncomingAttachmentStreams(). Also
> check the axiom test harness it shows how to use that API. this will
> give you direct access to the streams and you can do whatever you
want
> by yourself. Note that this API has not been thoroughly
exercised, so
> you may need to experiment/fix-stuff and help us make it better.
>
> thanks,
> dims
>
> On 5/23/07, Jochen Zink <[EMAIL PROTECTED]> wrote:
>> Sorry, I did not want to affront you. A big sorry for that!
>>
>> I know it is difficult to handle large attachments without
caching it
>> in files.
>>
>> With caching attachments in files, there can(!) be some problems
with
>> security configurations on some applicationservers. It can be
>> forbidden for webapplications to write any files to harddisc. This
>> could run in problems, if some people want to use axis2 in high
>> security environments, this could be a problem. A direct
streaming of
>> the attachments to the Service Implementation would be solve the
>> problem... After taking a look to SAAJ I'm nearly sure, that a
direct
>> streaming is imposible with this API.
>>
>> Regards!
>> Jochen
>>
>>
>> > -----Ursprüngliche Nachricht-----
>> > Von: [email protected]
>> > Gesendet: 23.05.07 10:15:30
>> > An: [email protected]
>> > Betreff: Re: MTOM error "java.lang.OutOfMemoryError: Java heap
space"
>>
>>
>> >
>> > On 5/23/07, Jochen Zink <[EMAIL PROTECTED]> wrote:
>> > >
>> > > This is the only way to handle large attachments int axis2,
*sadly*.
>> > Feel free to contribute or implement if you have ideas for better
>> > mechanisms for handling large attachments... There was an earlier
>> > effort to port the attachment streaming mechanisms from
Axis1.. But it
>> > was never completed..
>> >
>> > Thanks,
>> > Thilina
>> >
>> > >
>> > >
>> > > > -----Ursprüngliche Nachricht-----
>> > > > Von: [email protected]
>> > > > Gesendet: 23.05.07 07:23:12
>> > > > An: "axis user" <[email protected]>
>> > > > Betreff: MTOM error "java.lang.OutOfMemoryError: Java heap
space"
>> > >
>> > >
>> > > > Hi friends,
>> > > >
>> > > >
>> > > >
>> > > > I am running sample application "mtom" from standard
axis2
>> samples [axis2-1.1.1\samples\mtom]. This sample is working for
>> sending attachment of size 2-3 MB, but giving error for more
than 3MB
>> size of files.
>> > > >
>> > > >
>> > > >
>> > > > I want to send file of size 50-100 MB.
>> > > >
>> > > >
>> > > >
>> > > > error is as follows
>> > > >
>> > > > [java] Exception in thread "main"
>> org.apache.axis2.AxisFault: java.lang.Out
>> > > > OfMemoryError: Java heap space
>> > > > [java] at
>> org.apache.axis2.description.OutInAxisOperationClient.send(Ou
>> > > > tInAxisOperation.java:271)
>> > > > [java] at
>> org.apache.axis2.description.OutInAxisOperationClient.execute
>> > > > (OutInAxisOperation.java:202)
>> > > > [java] at
>> sample.mtom.service.MTOMSampleStub.attachment(Unknown Source)
>> > > >
>> > > >
>> > > >
>> > > > [java] at
>> sample.mtom.client.Client.transferFile(Unknown Source)
>> > > > [java] at sample.mtom.client.Client.main(Unknown
Source)
>> > > > [java] Java Result: 1
>> > > >
>> > > >
>> > > >
>> > > > I have enabled "MTOM" & "filecaching" both in the client
side,
>> but not server side caching means in "axis2.xml".
>> > > >
>> > > > 1) Can some one figureout solution?
>> > > >
>> > > > 2) Can we send file as attachment of size 50MB - 1GB?
>> > > >
>> > > >
>> > > >
>> > > > With best regards
>> > > >
>> > > > From
>> > > > Vikas R. Khengare
>> > > >
>> > >
>> > >
>> > > _______________________________________________________________
>> > > SMS schreiben mit WEB.DE FreeMail - einfach, schnell und
>> > > kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192
>> > >
>> > >
>> > >
>>
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>> > >
>> > >
>> >
>> >
>> > --
>> > Thilina Gunarathne - http://www.wso2.com -
>> http://thilinag.blogspot.com
>> >
>> >
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>> >
>>
>>
>> _______________________________________________________________
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>>
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>
>
--
Tammy Dugan
Computer Programmer
Regenstrief Institute, Inc.
Medical Informatics
Health Information and Translational Sciences (HITS) Building
410 West 10th Street, Suite 2000
Indianapolis, IN 46202
Main: 317.423.5500
Fax: 317.423.5695
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