Fw: Using Cocoon's SchematronValidator

[Martin Campbell]

Hi,   I'm new to the Apache "experience" so please excuse my ignorance.   I have been using the SchematronValidator portion of Cocoon for validation of XML docs. I noticed that there was a problem in specifying nested elements in the assert/report test statements - at least this is the case when validating a DOMDocument - not sure about JavaBeans. After a little inspection I found the fix for my problem (from email trail below):   >It turns out that within the SchematronValidator.evalRule method, if you change: > >JXPathContext localJxpContext = JXPathContex.newContext(jxpContext, ptr.getValue()); > >to: > >JXPPathConext localJxpContext = jxpContext.getRelativeContext(ptr); > >(Note: ptr is a Pointer from an Iterator obtained from the jxpContext) >Then everything works OK for DOM documents - butI haven't done any testing for JavaBeans....   I'm not sure how heavily this is exercised by Cocoon users and my testing has been for my own specific purpose but the SchematronValidator is certainly behaving as I require now for DOMDocuments. I hope this fix is useful to others as I greatly appreciate the software I have been able to obtain from Apache to date.   regards Martin   ----- Original Message ----- From: Ivelin Ivanov To: Martin Campbell Sent: Tuesday, June 24, 2003 1:08 PM Subject: Re: Using Cocoon's SchematronValidator   Martin,   Thank you very much for taking the time to investigate this issue. Lately, I have not been able to allocate as much time to Cocoon as I would like to. Please, forward this email to cocoon-dev and cocoon-user lists. I think it is worth promoting the fix at least to the level where other people might be interested verifying it.   Cheers.   -=Ivelin=- ----- Original Message ----- From: Martin Campbell To: Ivelin Ivanov Sent: Monday, June 23, 2003 8:25 AM Subject: Re: Using Cocoon's SchematronValidator Hi Ivelin,   I had another look at the code rather than posting of the question to the user lists.   It turns out that within the SchematronValidator.evalRule method, if you change:   JXPathContext localJxpContext = JXPathContex.newContext(jxpContext, ptr.getValue());   to:   JXPPathConext localJxpContext = jxpContext.getRelativeContext(ptr);   (Note: ptr is a Pointer from an Iterator obtained from the jxpContext)   Then everything works OK for DOM documents - butI haven't done any testing for JavaBeans. The ptr.getValue() funtion for a DOMNodePointer just returns the Node tree as a concatenated string value (as the symptom described in my initial eamil), while the change I have suggested returns a correct tree structured context.   Still very new to the whole Java/Apache experience, so I'll leave it up to you as to whether this fix should be promoted any further.   Thanks and regards Martin Campbell ----- Original Message ----- From: Ivelin Ivanov To: Martin Campbell Sent: Friday, June 20, 2003 3:01 PM Subject: Re: Using Cocoon's SchematronValidator Martin,   I don't see a problem with your tests. Please post your question to the JXPath (Jakarta Commons) users list. You may also consider posting on the Cocoon users in case somebody else had this problem recently.   Regards,     -=Ivelin=- ----- Original Message ----- From: Martin Campbell To: Ivelin Ivanov Sent: Thursday, June 19, 2003 11:48 PM Subject: Using Cocoon's SchematronValidator Hi Ivelin,   I hope you don't mindme directing this email personally I've had no response from the Schematron related mail lists.   I am interested/attempting to use the Java implementation of the Schematron contained in Cocoon for XML file semantic validation, as opposed to XML web page validtion. I am loading the XML file to be validated into a Dom object using DOMParser.parseXML()   I am able to get the tests to run OK and may own simple tests to run OK but there seems to be a problem when referring to child nodes within the test attribute of an assert or report rule. As a simple example, based on the following xml file:   <?xml version="1.0"?> <things>   <animals>     <animal>       <name version="1.1">cat</name>       <size>small</size>     </animal>   </animals>   <others>     <thing>       <name>car</name>       <size>medium</size>     </thing>   </others> </things>   The following assert statement is OK   <rule context="/things/animals/animal[name='cat']/name/@version">   <assert test="string(.) = '1.1'">Animal names should be at version 1.1</assert> </rule>   But the following (and anyother attemp to use a child node or attribute) fails   <rule context="/things/animals/animal[name='cat']">   <assert test="string(name/@version) = '1.1'">Animal names should be at version 1.1</assert> </rule>   Looking at the code in SchematronValidator.evalRule it would appear that the localJxpContext generated looses all track of child nodes and attributes. Looking with a debugger for the case above you would see a contextBean in the loclJxpContext with a value of "catsmall".   Please excuse my ignorance in regards to Java, still making the transition from C++.   Any assitance you could provide would be much appreciated.   regards Martin Campbell   By the way the following test works:   <rule context="/things/animals/animal[name='cat']">   <assert test="starts-with(., 'cat')">Animal names should start with cat!!</assert> </rule>