[SoapRMI] About-XmlPullParserFactory

[Aleksander Slominski]

nodep_at_libero.it wrote:

>I'm trying (again...) to write a (de)serializer and
>in readObject() method I use this piece of code:
>
>public Object readObject(
>        DeserializeContext dctx,
>        EncodingStyle enc,
>        Class expectedClass,
>        XmlJavaTypeMap map,
>        XmlPullParser pp,
>        XmlStartTag stag)
>        throws DeserializeException, XmlPullParserException, IOException
>    {
>    	byte b=pp.next();
>	XmlPullParserFactory ppf=XmlPullParserFactory.newInstance();
>    	XmlNode nodeTree=null;
>        try {
>            nodeTree = ppf.newNode(pp);
>        } catch(Exception ex) {
>            throw new DeserializeException(
>                "can't deserialize input into XML node tree"
>                    +pp.getPosDesc(), ex);
>        }
>        StringWriter sw=new StringWriter();
>        ppf.writeNode(nodeTree, sw, true);
>...
>
hi,

this code looks OK.

>  (*)<java.lang.String alias-ID="2" obj-name="state" valueOf="&lt;work alias-ID=&quot;0&quot; s=&quot;23.6&quot;&gt; 
>

>but the output of "ppf.writeNode(nodeTree, sw, true)" is:
>
>(*)<java.lang.String alias-ID='2' obj-name='state' valueOf='&lt;work alias-ID="0" s="23.6"> &lt;/work>'/>
>  
>
they are equivalent as from XML point of view whetehr attribute has 
apostrophe (') or quotation mark (") used for enclosing of attribute 
value is irrelevant. inside attribute value only <,>,& and " must be 
escaped if attrubute value is enclosed in apostrophes (see 
http://www.w3.org/TR/REC-xml#NT-AttValue and look that |AttValue 
requires escaping only of ||[^<&"] or ||[^<&'])|

>The problem is that "writeNode" has translated the value of attribute
>"valueOf", in the row (*), in a legible form, but it souldn't... I think.
>
this is required to escape attribute value ot make into valid XML - 
translatin back is done automatically by parser and when you  read 
String vcalue of attribute  "valueOf" it will be back the same as you 
have put it.

>What's wrong?
>
as far as i can tell by looking on XML outout all shoul dbe just fine 
and XSOAP/XPP combo does good job if generaating corect and as small as 
possible XML serialization of XmlNode escaping only _required_ 
characters. do you get any parsing error?

thanks,

alek

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