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From "Philippe Mouawad (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AXIS2-3760) CLONE -XMLBeans DataBinding generates too many namespaces PERFORMANCE ISSUE
Date Tue, 09 Dec 2008 17:00:51 GMT

    [ https://issues.apache.org/jira/browse/AXIS2-3760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12654847#action_12654847
] 

Philippe Mouawad commented on AXIS2-3760:
-----------------------------------------

Hello,

I got an answer on issue:
https://issues.apache.org/jira/browse/WSCOMMONS-327

I submit a patch that changes the way serialization occurs in the generated Stubs/Skeleton.
Patch is on AXIS2 XMLBeans module:
\modules\xmlbeans\src\org\apache\axis2\xmlbeans\template\XmlbeansDatabindingTemplate.xsl

The patch requires an upgrade to XMLBeans 2.4.0 otherwise an exception will occur (java.lang.IllegalArgumentException:
Local name may not be null or empty) due to a Bug in XMLBeans:
http://forum.springframework.org/showthread.php?t=43958

Using this patch you will notice that namespaces are written at the beginning and that prefixes
are used in all the document, I chose to set the following options on XMLBeans to reduce at
max the message size:
xmlOptions.setSaveNoXmlDecl();
xmlOptions.setSaveAggressiveNamespaces();
xmlOptions.setSaveNamespacesFirst();

Hope you can take this patch into account soon because it is rather critical in terms of network
traffic.
Philippe
www.ubik-ingenierie.com

> CLONE -XMLBeans DataBinding generates too many namespaces PERFORMANCE ISSUE
> ---------------------------------------------------------------------------
>
>                 Key: AXIS2-3760
>                 URL: https://issues.apache.org/jira/browse/AXIS2-3760
>             Project: Axis 2.0 (Axis2)
>          Issue Type: Bug
>          Components: databinding
>    Affects Versions: 1.4, 1.3, nightly
>         Environment: ALL
>            Reporter: Philippe Mouawad
>            Assignee: Amila Chinthaka Suriarachchi
>            Priority: Critical
>         Attachments: axiom-api-fix.jar, NamespaceBug.zip
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> When using XMLBeans as databinding layer.
> XML Requests and responses are very verbose due to same Namespaces being declared and
redeclared.
> Example:
> <?xml version='1.0' encoding='UTF-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><v1:getLocatedProducts
xmlns:v1="http://v1.product.ws.store.kingfisher.com"><v1:param0><xsd:callType
xmlns:xsd="http://data.v1.product.ws.store.kingfisher.com/xsd">1</xsd:callType><xsd:familyCode
xmlns:xsd="http://data.v1.product.ws.store.kingfisher.com/xsd">1</xsd:familyCode><xsd:moduleCode
xmlns:xsd="http://data.v1.product.ws.store.kingfisher.com/xsd">1</xsd:moduleCode><xsd:subFamilyCode
xmlns:xsd="http://data.v1.product.ws.store.kingfisher.com/xsd">1</xsd:subFamilyCode></v1:param0></v1:getLocatedProducts></soapenv:Body></soapenv:Envelope>
> You see that http://data.v1.product.ws.store.kingfisher.com/xsd is declared 4 times instead
of one.
> Philippe Mouawad
> www.ubik-ingenierie.com

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