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Re: Logging Question

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On Tue, 3 Jan 2012, Jeff Higgins wrote:

> On 01/03/2012 10:33 AM, Tom Anderson wrote:
>> On Sun, 1 Jan 2012, Arved Sandstrom wrote:
>> 
>>>> On 01/01/2012 06:33 AM, Stefan Ram wrote:
>>>>
>>>>> But an XML file needs to have one single root element that has an 
>>>>> end tag at its end. A process that is being terminated abnormally 
>>>>> might not write such an end tag.
>>> 
>>> And let's face it, the <log> document element in this case is useless. 
>>> It conveys zero information. It would better to regard each record as 
>>> a separate well-formed XML document, and the file is merely physical 
>>> storage for a bunch of log records.
>> 
>> What happens if you throw such a file into a normal XML parser?
>> 
>> I would imagine that if you're using StAX, you can stop parsing when 
>> you hit the end of a root element, and then either carry on to the next 
>> one, or perhaps wrap a fresh parser round the underlying input stream.
>> 
>> I have no idea what a SAX parser would do; i don't know how much 
>> well-formedness checking they do.
>> 
>> What would a DOM parser do?
>> 
>> You might need to interpolate a layer between the parser and the 
>> FileInputStream to notionally split the file into substreams, one per 
>> document. That would require some sort of framing format for the file, 
>> i think.
>
> The java.util.logging.XMLFormatter follows the DTD described in the 
> Appendix.* You are free to write a formatter that follows your own DTD.

No, i was talking about Arved's idea of putting multiple XML documents in 
a single file. Did you read and understand Arved's post?

tom

-- 
Passersby were amazed by the unusually large amounts of blood.

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Logging Question Novice <novice@example..com> - 2011-12-31 21:27 +0000
  Re: Logging Question Jeff Higgins <jeff@invalid.invalid> - 2011-12-31 17:25 -0500
    Re: Logging Question Novice <novice@example..com> - 2012-01-01 01:46 +0000
  Re: Logging Question Lew <lewbloch@gmail.com> - 2011-12-31 14:53 -0800
    Re: Logging Question Novice <novice@example..com> - 2012-01-01 01:59 +0000
      Re: Logging Question Jeff Higgins <jeff@invalid.invalid> - 2011-12-31 22:14 -0500
        Re: Logging Question Novice <novice@example..com> - 2012-01-01 05:44 +0000
          Re: Logging Question Jeff Higgins <jeff@invalid.invalid> - 2012-01-01 07:59 -0500
            Re: Logging Question Jeff Higgins <jeff@invalid.invalid> - 2012-01-01 08:14 -0500
            Re: Logging Question Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-01-01 19:06 -0400
              Re: Logging Question Jeff Higgins <jeff@invalid.invalid> - 2012-01-01 18:24 -0500
              Re: Logging Question Tom Anderson <twic@urchin.earth.li> - 2012-01-03 15:33 +0000
                Re: Logging Question Jeff Higgins <jeff@invalid.invalid> - 2012-01-03 11:21 -0500
                Re: Logging Question Jeff Higgins <jeff@invalid.invalid> - 2012-01-03 11:35 -0500
                Re: Logging Question Tom Anderson <twic@urchin.earth.li> - 2012-01-04 14:42 +0000
                Re: Logging Question Jeff Higgins <jeff@invalid.invalid> - 2012-01-04 11:43 -0500
                Re: Logging Question Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-01-04 20:28 -0400
                Re: Logging Question Donkey Hottie <donkey@fredriksson.dy.fi> - 2012-01-05 11:28 +0200
                Re: Logging Question Tom Anderson <twic@urchin.earth.li> - 2012-01-08 14:08 +0000
                Re: Logging Question Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-01-09 19:47 -0400

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