'RE: xerces does not validate dtd even though it is set to true'

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List:       xerces-j-user
Subject:    RE: xerces does not validate dtd even though it is set to true
From:       "Huynh, Lynn T." <lynn.huynh () unisys ! com>
Date:       2008-04-17 14:02:40
Message-ID: CE091CB077F4A74A9CBA33A4E4A8A3BF0E76AD8A () USEA-EXCH4 ! na ! uis ! unisys ! com
[Download RAW message or body]

Mike,
Got it.  Many Thanks again. 
Lynn


-----Original Message-----
From: Michael Glavassevich [mailto:mrglavas@ca.ibm.com] 
Sent: Thursday, April 17, 2008 9:29 AM
To: j-users@xerces.apache.org
Subject: RE: xerces does not validate dtd even though it is set to true

Hi Lynn,

Register an ErrorHandler [1] with the parser and throw an exception from
the error() method if that's the behaviour you want.

Thanks.

[1]
http://xerces.apache.org/xerces2-j/javadocs/api/org/xml/sax/ErrorHandler
.html

Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrglavas@ca.ibm.com
E-mail: mrglavas@apache.org

"Huynh, Lynn T." <lynn.huynh@unisys.com> wrote on 04/17/2008 09:10:26
AM:

> Mike,
> Yes, I saw the problem.
> I do get the error, but the problem is the parser.parse does not throw

> any error, so I could not catch the exception.  I need to be able to 
> catch this error.  Is there anyway I get get the actual error message 
> instead of just printing it out to the console?
>
>
> -----Original Message-----
> From: Michael Glavassevich [mailto:mrglavas@ca.ibm.com]
> Sent: Wednesday, April 16, 2008 3:41 PM
> To: j-users@xerces.apache.org
> Subject: RE: xerces does not validate dtd even though it is set to 
> true
>
> Hi Lynn,
>
> The document you attached is different than the one you originally 
> posted to the list.
>
> Specifically, <LABEL A3=""> --> <LABEL A1="Attribute Text" A3=""> 
> which contains the required attribute. You also changed the DTD, so no

> wonder you're not getting any errors.
>
> Thanks.
>
> Michael Glavassevich
> XML Parser Development
> IBM Toronto Lab
> E-mail: mrglavas@ca.ibm.com
> E-mail: mrglavas@apache.org
>
> "Huynh, Lynn T." <lynn.huynh@unisys.com> wrote on 04/16/2008 02:30:56
> PM:
>
> > Mike,
> > Attached the Counter sample, where I modified the DEFAULT_VALIDATION

> > =
>
> > true, so I didn't have to pass in the options.  And I ran it with 
> > the attached xml file and the label.dtd.
> > Plus, I am using xerces 2_9_1 package.
> > Just with these three files, I get back the result of:
> >
> > Temp.xml: 63 ms (3 elems, 3 attrs, 0 spaces, 232 chars) And no error

> > caught.
> >
> >
> > -----Original Message-----
> > From: Michael Glavassevich [mailto:mrglavas@ca.ibm.com]
> > Sent: Wednesday, April 16, 2008 2:22 PM
> > To: j-users@xerces.apache.org
> > Subject: RE: xerces does not validate dtd even though it is set to 
> > true
> >
> > Hi Lynn,
> >
> > Likely there's something else going on here which you haven't
> mentioned.
> > Not sure what to suggest since I can't reproduce it with what you 
> > posted.
> >
> > Thanks.
> >
> > Michael Glavassevich
> > XML Parser Development
> > IBM Toronto Lab
> > E-mail: mrglavas@ca.ibm.com
> > E-mail: mrglavas@apache.org
> >
> > "Huynh, Lynn T." <lynn.huynh@unisys.com> wrote on 04/16/2008 
> > 01:55:12
> > PM:
> >
> > > Hi Mike,
> > > I thought so too.  It is hard to believe that this is happening.
> > > And thought that I could have done something wrong.
> > >
> > > I'm testing with sax.Counter sample and not able to see the error 
> > > message either.
> > > I turned on the validation in the Counter sample as well.
> > >
> > >
> > > -----Original Message-----
> > > From: Michael Glavassevich [mailto:mrglavas@ca.ibm.com]
> > > Sent: Wednesday, April 16, 2008 11:22 AM
> > > To: j-users@xerces.apache.org
> > > Subject: Re: xerces does not validate dtd even though it is set to

> > > true
> > >
> > > Hi Lynn,
> > >
> > > Hard to believe that Xerces isn't reporting this error. When I try

> > > your example with the sax.Counter sample I get:
> > >
> > > [Error] label.xml:4:14: Attribute "A1" is required and must be 
> > > specified for element type "LABEL".
> > >
> > > Validation errors are non-fatal. Are you sure that you're 
> > > registering an ErrorHandler and not ignoring the errors reported 
> > > to
> it?
> > >
> > > Thanks.
> > >
> > > Michael Glavassevich
> > > XML Parser Development
> > > IBM Toronto Lab
> > > E-mail: mrglavas@ca.ibm.com
> > > E-mail: mrglavas@apache.org
> > >
> > > "Huynh, Lynn T." <lynn.huynh@unisys.com> wrote on 04/16/2008
> > > 10:13:32
> > > AM:
> > >
> > > > Hi,
> > > > In my DTD, I have one of the attribute name as a required
> attribute.
> > > > However,  when I used it and do not have it in the xml, Xerces 
> > > > does not return any error.
> > > > I have factory.setValidating(true) and 
> > > > xmlReader.setFeature("http://xml.org/sax/features/validation",
> > true).
> > > >
> > > > Here is the sample DTD:
> > > > <!ELEMENT LABEL ANY>
> > > > <!ATTLIST LABEL A1 CDATA #REQUIRED> <!ATTLIST LABEL A3 CDATA "">

> > > > <!ENTITY title "The title"> <!ELEMENT FIRST (#PCDATA)> <!ATTLIST

> > > > FIRST A2 CDATA ""> <!ENTITY subtitle "my subtitle"> <!ELEMENT 
> > > > SECOND (#PCDATA)> <!ELEMENT THIRD (#PCDATA)>
> > > >
> > > > Sample XML, please note LABEL does not have the required A1
> > attribute:
> > > > <!DOCTYPE LABEL SYSTEM "label.dtd">
> > > > <!-- This is a comment -->
> > > > <?xml-stylesheet type="text/xml"?> <LABEL A3="">
> > > >   $3.99
> > > >   <!-- This is another comment -->
> > > >   <![CDATA[ << CDATA >> ]]>
> > > >   &title;
> > > >   <FIRST A2="Or &subtitle;"/>
> > > >   <SECOND/>
> > > > </LABEL>
> > > >
> > > > Thanks in advance for any input.
> > > > Lynn
> > > >
> > > >
> > > > THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE 
> > > > PROPRIETARY MATERIAL and is thus for use only by the intended 
> > > > recipient. If you received this in error, please contact the 
> > > > sender and delete the e-mail and its attachments from all 
> > > > computers
> > > >
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> >
> > [attachment "label.dtd" deleted by Michael Glavassevich/Toronto/IBM]

> > [attachment "Temp.xml" deleted by Michael Glavassevich/Toronto/IBM] 
> > [attachment "Counter.java" deleted by Michael 
> > Glavassevich/Toronto/IBM]
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