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From "Ajith Harshana Ranabahu (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (AXIS2-818) org.apache.axis2.util.StreamWraper may produce START_DOCUMENT events twice
Date Tue, 18 Jul 2006 12:22:14 GMT
     [ http://issues.apache.org/jira/browse/AXIS2-818?page=all ]

Ajith Harshana Ranabahu resolved AXIS2-818.
-------------------------------------------

    Resolution: Fixed

Changed the implementation of the wrapper to fix this issue. Basically the intention of the
wrapper is to produce a fake START_DOCUMENT event if the real parser rests at the START_ELEMENT
event. Now the parser returns the START_DOCUMENT if the state of the internal parser has not
been touched but never throws the START_DOCUMENT from the next method.

> org.apache.axis2.util.StreamWraper may produce START_DOCUMENT events twice
> --------------------------------------------------------------------------
>
>                 Key: AXIS2-818
>                 URL: http://issues.apache.org/jira/browse/AXIS2-818
>             Project: Apache Axis 2.0 (Axis2)
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.0
>            Reporter: Raymond Feng
>         Assigned To: Ajith Harshana Ranabahu
>
> If  StreamWrapper is used to wrap a XMLStreamReader positioned at START_ELEMENT, then
it will produce START_DOCUMENT events twice.
> Assuming StreamWrapper wrapper = new StreamingWrapper(realReader);
> 1) wrapper.getEventType() returns START_DOCUMENT
> 2) wrapper.next() still returns START_DOCUMENT by the logic in code below. (in this case,
state==STATE_INIT && realReader.getEventType() == START_ELEMENT)
> public int next() throws XMLStreamException {
>         prevState = state;
>         int returnEvent = -1;
>         switch (state) {
>             case STATE_INIT:
>                 if (realReader.getEventType() == START_DOCUMENT) {
>                     state = STATE_SWITCHED;
>                     returnEvent = realReader.getEventType();
>                 } else {
>                     state = STATE_SWITCH_AT_NEXT;
>                     returnEvent = START_DOCUMENT;
>                 }
>                 break;
> ...
>     }

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