XOM API for Processing XML with Java

[François Beausoleil <fbos AT users.sourceforge.net>]

Hello Patrick,

The problem is that your document references a relative resource, but 
the resource is not accessible.  You have three ways in which you can 
solve that:

1.  Put the SchadeAttest.dtd file at the root of your classpath, or in 
the same package where the Load4XML.java file is.  I don't know how the 
default EntityResolver works, but it might be able to resolve the reference.

2.  Use an absolute URL to the SchadeAttest.dtd file.  Something like 
file:///path/to/file/SchadeAttest.dtd.  Or use the http protocol, as 
appropriate.

3.  Implement an EntityResolver and pass that to XOM.  Implementors of 
EntityResolver are responsible for resolving resources and returning 
them to the caller.  In you case, when the systemID contains 
"SchadeAttest.dtd", you would build a URL to the file, and return that.

Hope that helps !
François

MULS PATRICK wrote:
> Hello Eliotte and Francois,
>
> Here is the stack-trace and for Francois also the source and xml-file used.
> The problem is indeed that the DTD is not found when not completely specified.
> The package dbaccess is not yet necessary, as I'm not yet accessing my db, so 
> you can leave it out.
>
> Thanks for your assistance,
>
> Patrick Muls
> Datassur ESV
> 00 32 2 547 58 59
>
>
> -----Original Message-----
> From: Francois Beausoleil [mailto:fbos AT users.sourceforge.net] 
> Sent: 19 August 2003 20:29
> To: Elliotte Rusty Harold; MULS PATRICK
> Cc: xom-interest AT lists.ibiblio.org
> Subject: Re: [XOM-interest] XML-heading causes IOException[Scanned]
>
> I agree with Eliotte that without seeing the document it is hard to guess
> what's wrong.  But I would think that an IOException is possible, if the
> DOCTYPE refers to a DTD that is unavailable somehow.
>
> Hope that helps,
> François
>
> On Tue, 19 Aug 2003 06:52:53 -0400, "Elliotte Rusty Harold"
> <elharo AT metalab.unc.edu> said:
>
> > > Hello,
> > >
> > > I'm trying out XOM for an upcoming project. I created an XML-file
> > > containing <?xml version ...> and <!DOCTYPE ...> tags and a comment-tag.
> > > When I try to build the document in my application using:
> > >                                    Builder builder = new Builder();
> > >                                    Document doc = builder.build(flXml);
> > > I get an IOException on the file. Removing those 3 tags from the file
> > > solves this problem. But will they not always be present in an XML-file?
> > > And having to remove them first seems a timewaisting operation. Any
> > > suggestions?
> >
> > You have not provided enough information to diagnose the problem. 
> > Seeing the actual XML document and code would be required to tell 
> > what's going on here. probably your document is malformed and you're 
> > getting an XMLException, not an IOException, but that's just a guess 
> > without seeing the code.
> > --
> >
> >   Elliotte Rusty Harold
> >   elharo AT metalab.unc.edu
> >   Processing XML with Java (Addison-Wesley, 2002)
> >   http://www.cafeconleche.org/books/xmljava
> >   http://www.amazon.com/exec/obidos/ISBN%3D0201771861/cafeaulaitA
> > _______________________________________________
> > XOM-interest mailing list
> > XOM-interest AT lists.ibiblio.org
> > http://lists.ibiblio.org/mailman/listinfo/xom-interest
>
> Developer of Java Gui Builder
> http://jgb.sourceforge.net/
>
>
> ------------------------------------------------------------------------
>
> --------------------Configuration: SchadeAttest - JDK version 1.3.1 <Default> - 
> <Default>--------------------
> Command   : "C:\jdk1.3.1\bin\java.exe" -classpath 
> "D:\SchadeAttest\classes\;C:\oracle\ora81\jdbc\lib\classes12.zip;C:\DTS\Batch\classes;D:\XML\XOM\xom-1.0d12.jar;D:\XML\XOM\lib\xercesImpl.jar;D:\XML\XOM\lib\xmlParserAPIs.jar;C:\jdk1.3.1\jre\lib\rt.jar;C:\jdk1.3.1\jre\lib\i18n.jar;C:\jdk1.3.1\lib\dt.jar;C:\jdk1.3.1\lib\tools.jar;C:\jdk1.3.1\jre\lib\ext\cryptix32.jar;C:\jdk1.3.1\jre\lib\ext\OpenBaseJDBC.jar"
>  be.datassur.schadeattest.Load4XML
> Directory : D:\SchadeAttest\classes
> Starting Load4XML...
> Load4XML filedialog starts
> Load4XML file chosen: D:\SchadeAttest\SchadeAttest.xml
> lezenXML start
> builder
> lezenXML() IOException file : D:\SchadeAttest\SchadeAttest.xml
> java.net.UnknownHostException: file
>         at java.net.InetAddress.getAllByName0(InetAddress.java:571)
>         at java.net.InetAddress.getAllByName0(InetAddress.java:540)
>         at java.net.InetAddress.getByName(InetAddress.java:449)
>         at java.net.Socket.<init>(Socket.java:100)
>         at sun.net.NetworkClient.doConnect(NetworkClient.java:50)
>         at sun.net.NetworkClient.openServer(NetworkClient.java:38)
>         at sun.net.ftp.FtpClient.openServer(FtpClient.java:267)
>         at sun.net.ftp.FtpClient.<init>(FtpClient.java:381)
>         at 
> sun.net.www.protocol.ftp.FtpURLConnection.connect(FtpURLConnection.java:77)
>         at 
> sun.net.www.protocol.ftp.FtpURLConnection.getInputStream(FtpURLConnection.java:96)
>         at java.net.URL.openStream(URL.java:798)
>         at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown 
> Source)
>         at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown Source)
>         at org.apache.xerces.impl.XMLEntityManager.startDTDEntity(Unknown 
> Source)
>         at org.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(Unknown 
> Source)
>         at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(Unknown 
> Source)
>         at 
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown 
> Source)
>         at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
>         at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
>         at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>         at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>         at nu.xom.Builder.build(Builder.java:553)
>         at nu.xom.Builder.build(Builder.java:404)
>         at nu.xom.Builder.build(Builder.java:441)
>         at be.datassur.schadeattest.Load4XML.lezenXML(Load4XML.java:151)
>         at be.datassur.schadeattest.Load4XML.verwerken(Load4XML.java:119)
>         at be.datassur.schadeattest.Load4XML.starten(Load4XML.java:112)
>         at be.datassur.schadeattest.Load4XML.access$300(Load4XML.java:22)
>         at 
> be.datassur.schadeattest.Load4XML$3.actionPerformed(Load4XML.java:78)
>         at 
> javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1450)
>         at 
> javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1504)
>         at 
> javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:378)
>         at 
> javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:250)
>         at 
> javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:216)
>         at java.awt.Component.processMouseEvent(Component.java:3715)
>         at java.awt.Component.processEvent(Component.java:3544)
>         at java.awt.Container.processEvent(Container.java:1164)
>         at java.awt.Component.dispatchEventImpl(Component.java:2593)
>         at java.awt.Container.dispatchEventImpl(Container.java:1213)
>         at java.awt.Component.dispatchEvent(Component.java:2497)
>         at 
> java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2451)
>         at 
> java.awt.LightweightDispatcher.processMouseEvent(Container.java:2216)
>         at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2125)
>         at java.awt.Container.dispatchEventImpl(Container.java:1200)
>         at java.awt.Window.dispatchEventImpl(Window.java:914)
>         at java.awt.Component.dispatchEvent(Component.java:2497)
>         at java.awt.EventQueue.dispatchEvent(EventQueue.java:339)
>         at 
> java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:131)
>         at 
> java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:98)
>         at 
> java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
>         at java.awt.EventDispatchThread.run(EventDispatchThread.java:85)
> lezenXML einde
>
> Process completed.
>
>
>
> ------------------------------------------------------------------------
>
> <?xml version="1.0" standalone="no"?>
> <!DOCTYPE Attesten SYSTEM "SchadeAttest.dtd">
> <!-- Dit document beschrijft het schadeverleden van een persoon bij een 
> maatschappij -->
> <Attesten xmlns="http://www.datassur.com/";>
>         <Attest>
>                 <Definitief>Voorlopige of definitieve versie attest <!-- XXX (C50: 
> voorlopig, C51: definitief) --></Definitief>
>                 <PolisNr>Polisnummer<!-- X(25) --></PolisNr>
>                 <PlaatNr>Plaatnummer<!-- X(06) --></PlaatNr>
>                 <VervalDt>Jaarlijkse vervaldatum polis <!-- DDMM 
> --></VervalDt>
>                 <InwerkingDt>Datum inwerkingtreding BA-waarborg polis <!-- DDMMYYYY 
> --></InwerkingDt>
>                 <EindDt>Einddatum polis <!-- DDMMYYYY --></EindDt>
>                 <VoertuigCategorie>Voertuig categorie <!-- X(2) --> 
> </VoertuigCategorie>
>                 <Gebruik>Voertuig gebruik <!-- 9 (1: privé, 2: beroep, 3: gemengd) 
> --></Gebruik>
>                 <VerzekerdeNAW>
>                         <VerzekerdeNaam>Naam verzekerde <!-- X(30) 
> --></VerzekerdeNaam>
>                         <VerzekerdeVoornaam>Voornaam verzekerde <!-- X(30) 
> --></VerzekerdeVoornaam>
>                         <VerzekerdeStraat>Straat, nr verzekerde <!-- X(30) 
> --></VerzekerdeStraat>
>                         <VerzekerdeZIP>Postcode verzekerde <!-- X(10)? 
> --></VerzekerdeZIP>
>                         <VerzekerdeLoc>Localiteit verzekerde <!-- X(30) 
> --></VerzekerdeLoc>
>                         <VerzekerdeLand>ISO Landcode verzekerde <!-- X(2) 
> --></VerzekerdeLand>
>                 </VerzekerdeNAW>
>                 <Graad>Graad van personalisatie a postiori <!-- X(3)? 
> --></Graad>
>                 <Cie>
>                         <CieCDV>CDVnummer van de maatschappij die het attest 
> uitgeeft<!-- 99999-99 --></CieCDV>
>                         <CieNaam>Naam van de verzekeringsonderneming <!-- X(30) 
> --></CieNaam>
>                 </Cie>
>                 <AttestDt>Datum attest uitgereikt <!-- DDMMYYYY --></AttestDt>
>                 <Handtekening>Naam van de ondertekenaar <!-- X(15) 
> --></Handtekening>
>                 <Schadegevallen><!-- lijst alle schadegevallen voorgevallen in 
> de laatste 5 jaar binnen het aangeduide contract (zowel in fout als in recht) -->
>                         <Schadegeval>
>                                 <SchadeDt>Datum schadegeval <!-- DDMMYYYY 
> --></SchadeDt>
>                                 <SchadeCat>Categorie schade (facultatief) <!-- X(10)? 
> --></SchadeCat>
>                                 <Bestuurder>
>                                         <BestuurderNaam>Naam bestuurder <!-- X(30) 
> --></BestuurderNaam>
>                                         <BestuurderVoornaam>Voornaam bestuurder <!-- 
> X(30) --></BestuurderVoornaam>
>                                         <BestuurderGebDt>Geboortedatum bestuurder <!-- 
> DDMMYYYY --></BestuurderGebDt>
>                                 </Bestuurder>
>                                 <BedragArt29b curr="EUR">Op grond van artikel 29bis 
> betaalde bedragen <!-- 999.999.999,99 --></BedragArt29b>
>                                 <BedragVerg curr="EUR">Werkelijk betaalde bedragen 
> vergoedingen (incl art29bis) <!-- 999.999.999,99 --></BedragVerg>
>                                 <Afgesloten>Dossier afgesloten <!-- 9 (1: ja, 2: nee) 
> --></Afgesloten>
>                                 <Aansprakelijk>Aansprakelijkheid bestuurder <!-- 9 (1: 
> aangetoond, 2: verdeeld, 3: niet aangetoond, 4: nog niet bepaald) --></Aansprakelijk>
>                                 <Beschouwd>Schadegeval reeds in aanmerking genomen voor bepaling 
> "personalisatiegraad a posteriori" <!-- 9 (1: ja, 2: nee) --></Beschouwd>
>                         </Schadegeval>
>                 </Schadegevallen>
>         </Attest>
> </Attesten>