[ http://issues.apache.org/jira/browse/WSCOMMONS-76?page=all ]
Takahide Nogayama updated WSCOMMONS-76:
---------------------------------------
Attachment:
ver2_patch_to_axis2_modules_kernel_src_org_apache_axis2_transport.txt
I changed about insertion point in AXIS2.
> StAX Filter [ Data conversion, extraction, or do something between
> XMLStreamReader and StAXBuilder]
> ---------------------------------------------------------------------------------------------------
>
> Key: WSCOMMONS-76
> URL: http://issues.apache.org/jira/browse/WSCOMMONS-76
> Project: WS-Commons
> Issue Type: New Feature
> Components: AXIOM
> Environment: windows
> Reporter: Takahide Nogayama
> Attachments: patchAXIOM_to_moduleaxiom-apisrcmainjava.txt,
> patchAXIS2_to_moduleskernelsrc.txt, src_demo.zip,
> StAX_filter_architecture.ppt,
> ver2_patch_to_axiom_modules_axiom-api_src_main_java_org_apache_axiom_om_impl_builder.txt,
> ver2_patch_to_axis2_modules_kernel_src_org_apache_axis2_transport.txt
>
>
> Filter is interface and extends XMLStreamReader. Filter wraps
> XMLStreamReader. And XMLStreamReader of StAXBuilder is replaced by Filter.
> In building phase, next() method must be invoked on each event. filter get
> result of next() from XMLStreamReader, and do some process, then return the
> result to StAXBuilder.
> We can set Object on filter. Filter get some information from it and set
> result on it to transfer the result.
> We can set StAXBuilder on filter. Filter get OMDocument from the builder. If
> filter want to know past information, the OMDocument has it.
> If StAXBuilder has lastNode() method, Filter can make reference list to
> OMNode. this is commneted in
> http://issues.apache.org/jira/browse/WSCOMMONS-75 .
> Example1)
> SOAP header has some child elements. and they has actor Attribute. it
> indicates which intermediary should process the element.
> ExtractMyActorSOAPHeaderFilter.java is implementation of Filter for this
> example. The filter monitors locaName at first,
> If START_ELEMENT whose actor does not equals myactor is found, The filter
> invokes next() until the element's END_ELEMENT.
> Thus, The soap header elements which has other's actor are not transfered to
> StAXBuilder. We can ommit creating fruitness OM.
> Example2)
> If StAXBuilder has lastNode() method, Filter can make reference list. The
> list has OMNode whose actor indicates myactor.
> After building, If we want to access Security header elements which has
> myactor, we can access the element directry by using the reference list.
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