parsing XML file

[Christine Mayer]

Hi,

I've got an XML file, containing key /value pairs. First of all, I
want to validate the XML file by a XSD
Schema file I have. Finally, I want to read all text nodes and put the
key /value pairs into a HashMap.

Questions:
1. Which parser do you recomend?
2. How can I validate the XML file with my XSD Schema?
3. How can I access the text nodes?

Thanks in advance,

Christine Mayer

 

[tony_se]

Hi,

I've got an XML file, containing key /value pairs. First of all, I
want to validate the XML file by a XSD
Schema file I have. Finally, I want to read all text nodes and put the
key /value pairs into a HashMap.

Questions:
1. Which parser do you recomend?
2. How can I validate the XML file with my XSD Schema?
3. How can I access the text nodes?

Thanks in advance,

Christine Mayer

Try JDOM

 

[bugbear]

Try JDOM

JDOM doesn't appear to be a parser

http://www.jdom.org/docs/faq.html#a0360

BugBear

 

[steph]

Hi,

I've got an XML file, containing key /value pairs. First of all, I
want to validate the XML file by a XSD
Schema file I have. Finally, I want to read all text nodes and put the
key /value pairs into a HashMap.

Questions:
1. Which parser do you recomend?
2. How can I validate the XML file with my XSD Schema?
3. How can I access the text nodes?

if you want to "browse" your xml document you need to use a DOM api.
you can find an implementation here http://xerces.apache.org/xerces-j/

the drawback of this method is that you load the whole document in
memory and that the initial parsing is (relativly) slow.

an other option is to parse the document as a stream; known as SAX.
there is a SAX parser (crimson) embedeed in the Sun JRE.

unsing SAX, if you want to validate before loading, you have to parse
twice (ugly!), if not, you can validate and load data at the same time
but your process could fail before the end of the file (maybe unsafe).
I advise you to do it in one pass with a same way to fail using a
temporary Map and not the main one.
<code>mainMap.putAll(tmpMap)</code>

 

[Roedy Green]

I've got an XML file, containing key /value pairs. First of all, I
want to validate the XML file by a XSD
Schema file I have. Finally, I want to read all text nodes and put the
key /value pairs into a HashMap.

see http://mindprod.com/jgloss/xml.html

The Java code to validate with an XSD schema is trivial.

 

[=?ISO-8859-1?Q?Arne_Vajh=F8j?=]

JDOM doesn't appear to be a parser

http://www.jdom.org/docs/faq.html#a0360

It wraps another parser.

But for the end user it does not matter much if the parser is
part of JDOM or external to JDOM.

Arne