[
Lists Home |
Date Index |
Thread Index
]
What does your EntityResolver actually do?
Michael Kay
http://www.saxonica.com/
> -----Original Message-----
> From: Midsummer Sun [mailto:midsummer.sun@gmail.com]
> Sent: 31 March 2005 11:25
> To: xml-dev@lists.xml.org
> Subject: Re: [xml-dev] Problem parsing XML file with Xerces-J
>
> Thanks a lot for your advice. I would like to implement the
> EntityResolver solution.. It seems cleaner object oriented wise ;) Is
> it? or is editing the file using java.io classes(i.e. removing the DTD
> reference) before parsing would be appropriate? Please give your
> advice..
>
> To my understanding I made the following changes to my program (for
> EntityResolver solution).
>
> public class XYZ extends DefaultHandler {
>
> public static void main(String[] args)
> {
> XYZ obj = new XYZ();
>
> try {
> //XML parser declarations
> DocumentBuilderFactoryImpl factory = new
> DocumentBuilderFactoryImpl();
> DocumentBuilder builder = factory.newDocumentBuilder();
> builder.setEntityResolver(obj);
>
> Document document = builder.parse(new InputSource(new
> StringReader(rsp)));
>
> ...... other code
>
> The program compiles fine. But I am still getting the same error
> (connection timed out)
>
> Hoping for your further help.
>
> Best regards,
>
>
> On Thu, 31 Mar 2005 10:42:38 +0100, Michael Kay
> <mike@saxonica.com> wrote:
> > The XML parser is trying to access the document at
> http://host/x.dtd (using
> > the java.net library) and gets a timeout because it isn't
> accessible.
> >
> > The fact that you didn't request validation is irrelevant.
> It's a common,
> > and erroneous, belief that if you don't request validation
> then the parser
> > won't try to read the external DTD. It needs it to expand
> entity references.
> >
> > Try either editing the DTD reference out of the file before
> parsing it, or
> > using an EntityResolver to satisfy the reference from
> somewhere else.
> >
> > Michael Kay
> > http://www.saxonica.com/
> >
> >
> > > -----Original Message-----
> > > From: Midsummer Sun [mailto:midsummer.sun@gmail.com]
> > > Sent: 31 March 2005 10:33
> > > To: xml-dev@lists.xml.org
> > > Subject: [xml-dev] Problem parsing XML file with Xerces-J
> > >
> > > Hi Friends,
> > > I am parsing a XML file using Xerces-J 2.6.2 using the
> DOM API. I
> > > am facing some problem. The XML document is available in
> my program in
> > > Java string form.
> > >
> > > Here is relevant portion of code (with line numbers for
> > > readibility) ..
> > >
> > > 1) DocumentBuilderFactoryImpl factory = new
> > > DocumentBuilderFactoryImpl();
> > > 2) DocumentBuilder builder = factory.newDocumentBuilder();
> > > 3) String rsp = "xmlstring";
> > > 4) Document document = builder.parse(new InputSource(new
> > > StringReader(rsp)));
> > >
> > > A sample xmlstring is (for line 3) -
> > > <?xml version='1.0' encoding='ISO-8859-1'?><!DOCTYPE
> MESSAGING SYSTEM
> > > 'http://host/x.dtd'><MESSAGING></MESSAGING>
> > >
> > > (I am not using the validating mode. This XML is sent to
> my program by
> > > a remote process and DTD reference is redundant to me).
> > >
> > > Line 4 is giving error (I am pasting full stack trace for
> > > your reference) -
> > > java.net.ConnectException: Connection timed out: connect
> > > at java.net.PlainSocketImpl.socketConnect(Native Method)
> > > at java.net.PlainSocketImpl.doConnect(Unknown Source)
> > > at
> java.net.PlainSocketImpl.connectToAddress(Unknown Source)
> > > at java.net.PlainSocketImpl.connect(Unknown Source)
> > > at java.net.Socket.connect(Unknown Source)
> > > at java.net.Socket.connect(Unknown Source)
> > > at sun.net.NetworkClient.doConnect(Unknown Source)
> > > at sun.net.www.http.HttpClient.openServer(Unknown Source)
> > > at sun.net.www.http.HttpClient.openServer(Unknown Source)
> > > at sun.net.www.http.HttpClient.<init>(Unknown Source)
> > > at sun.net.www.http.HttpClient.<init>(Unknown Source)
> > > at sun.net.www.http.HttpClient.New(Unknown Source)
> > > at sun.net.www.http.HttpClient.New(Unknown Source)
> > > at sun.net.www.http.HttpClient.New(Unknown Source)
> > > at
> > >
> sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Sour
> > > ce)
> > > at
> > >
> sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
> > > at
> > >
> sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown So
> > > urce)
> > > at
> > >
> org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown So
> > > urce)
> > > 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 Sourc
> > > e)
> > > at
> > >
> org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(
> > > Unknown Source)
> > > at
> > >
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Un
> > > known Source)
> > > at
> > > org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> > > at
> > > org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> > > at
> org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> > > at
> org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
> > > at
> > > org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
> > > at XYZ.main(XYZ.java:47)
> > >
> > > I don't know what this call has to do with java.net package !
> > >
> > > I'll appreciate help in understanding what is going wrong,
> > > and how to solve it..
> > >
> > > Best regards,
> > >
> > > -----------------------------------------------------------------
> > > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an
> > > initiative of OASIS <http://www.oasis-open.org>
> > >
> > > The list archives are at http://lists.xml.org/archives/xml-dev/
> > >
> > > To subscribe or unsubscribe from this list use the subscription
> > > manager: <http://www.oasis-open.org/mlmanage/index.php>
> > >
> > >
> >
> >
>
> -----------------------------------------------------------------
> The xml-dev list is sponsored by XML.org <http://www.xml.org>, an
> initiative of OASIS <http://www.oasis-open.org>
>
> The list archives are at http://lists.xml.org/archives/xml-dev/
>
> To subscribe or unsubscribe from this list use the subscription
> manager: <http://www.oasis-open.org/mlmanage/index.php>
>
>
|
