First off, when you use a StringReader (or any Reader) with an XML parser,
its got no way of knowing where to look for related files like DTDs or XSDs.
However if you were to write this file to disk somewhere then parse it via a
URL then it'd find your DTD.
Having said all that - if what you want to do is validate an XML document
against a DTD, even though the DOCTYPE might not be in the XML document, you
can use the JARV API and Sun's MSV library to do this.
There's an example of doing that here...
dom4j/src/samples/validate/
JARVDemo.java
James
-------
http://radio.weblogs.com/0112098/
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Dom4j-User" <[EMAIL PROTECTED]>
Sent: Wednesday, February 19, 2003 2:14 PM
Subject: Re: [dom4j-user] Validating XML with DTD
>
> Hi. Clarification on what I am trying to do is this:
>
> I have a Document, but I need to validate it against a DTD.
> So, I convert it into a String and feed the String into a StringReader.
> The StringReader is passed in as the parameter for creating a SaxReader.
>
> // convert dom4j Document to String
> StringReader docIn = null;
> docIn = new StringReader(exportDocumentToString(doc));
>
> // read stringified document with validation turned on for
SaxReader
> instance
> boolean validateXML = true;
> SAXReader saxReader = new SAXReader(validateXML);
> try{
> saxReader.read(docIn);
> }
> catch(DocumentException ex){
> ex.printStackTrace();
> }
>
> The Document's looks like this:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE doc PUBLIC "-//MiniEmily//DTD Standing XML Article V1.0//EN"
> "StandingXML.dtd"><doc><processinfo><timestamp>Wed Feb 19 14:09:00 GMT
> 2003</timestamp>
> -
> -
>
> org.dom4j.DocumentException: null Nested exception: null
> at org.dom4j.io.SAXReader.read(SAXReader.java:342)
> Nested exception:
> java.net.MalformedURLException
> at java.net.URL.<init>(URL.java:613)
> at java.net.URL.<init>(URL.java:476)
>
> I've put the StandingXML.dtd where the calling class gets compiled to, but
> to no avail. Any ideas?
>
> Thanks,
> Portia
>
>
>
>
>
> |---------+---------------------------->
> | | "James Strachan" |
> | | <james_strachan@y|
> | | ahoo.co.uk> |
> | | |
> | | 19/02/2003 07:56 |
> | | |
> |---------+---------------------------->
>
>---------------------------------------------------------------------------
------------------------------------|
> |
|
> | To: "Dom4j-User" <[EMAIL PROTECTED]>,
<[EMAIL PROTECTED]> |
> | cc:
|
> | Subject: Re: [dom4j-user] Validating XML with DTD
|
>
>---------------------------------------------------------------------------
------------------------------------|
>
>
>
>
> From: <[EMAIL PROTECTED]>
> > (BTW, I've already looked at the following mail:
> >
http://www.mail-archive.com/dom4j-dev@lists.sourceforge.net/msg00493.html
> > and it didn't provide sufficient information for what I need.)
> >
> > Hi. I am currently doing the following:
> >
> > Document standingXML =
> > transformer.parseToStandingXML(generator.getDocument());
> > standingXML.addDocType("doc", "", "StandingXML.dtd");
> >
> > and then:
>
> BTW if you look at your document via
>
> standingXML.asXML()
>
> does it look right?
>
>
> > boolean validateXML = true;
> > SAXReader saxReader = new SAXReader(validateXML);
> > saxReader.setIncludeInternalDTDDeclarations(true);
> > saxReader.read(docIn);
>
>
> > where "docIn" is "standingXML".
>
> So is there a file called "standingXML" on your file system somewhere? Is
> it
> in the current directory, along with the DTD?
>
>
> > However, I get the following exception:
> >
> > org.dom4j.DocumentException: null Nested exception: null
> > at org.dom4j.io.SAXReader.read(SAXReader.java:342)
> > at org.dom4j.io.SAXReader.read(SAXReader.java:256)
> > Nested exception:
> > java.net.MalformedURLException
> > at java.net.URL.<init>(URL.java:613)
> > at java.net.URL.<init>(URL.java:476)
> > at java.net.URL.<init>(URL.java:425)
> >
> > I've already put "StandingXML.dtd" into the location where I am
compiling
> > my class "X" so that it will be picked up, but this does not work.
> > Any ideas? I am don't think I need to use the EntityResolver interface.
>
> XML doesn't use the classpath by default to load XML files. If you want to
> use the classpath or class loader mechanism then you need to pass in a URL
> yourself.
>
> e.g.
>
> URL url = getClass().getClassLoader().getResource("standingXML.xml");
> SAXReader reader = new SAXReader();
> Document doc = reader.read( url );
>
>
>
> James
> -------
> http://radio.weblogs.com/0112098/
>
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