Hi Candide,
I suspect that you have installed your own scraper, which means that its
metadata (including the regular expression) is now in the My Piggy Bank
database. Have you tried the following?
- browse to the My Piggy Bank database (Tools -> Piggy Bank -> Browser
My Piggy Bank)
- click on JavascriptScreenScraper in the list on the right
- find your own screen scraper and delete it.
We haven't had time to write a tutorial for Solvent, but there is a
screen cast for it on its site. Solvent, once you get it, should make
writing screen scrapers quite a bit easier.
Best,
David
Candide Kemmler wrote:
>OK great now everything build ok.
>
>Next step: write a screen scraper. First I wanted to use Solvent, but
>IMO it lacks a good tutorial, so I started to follow the directions
>given at:
>
>http://simile.mit.edu/piggy-bank/screen-scrapers-howto.html
>
>But then apparently I did something wrong:
>
>10:57:31.211 [...RDFUtilities] Query took 0ms:
> SELECT DISTINCT o FROM
>{<http://www.foo.com/my-scrapers.n3#CraigslistApartmentListingScraper>}
><http://simile.mit.edu/2005/04/piggy-bank#urlPattern> {o} (0ms)
>java.security.PrivilegedActionException:
>java.lang.reflect.InvocationTargetException
> at java.security.AccessController.doPrivileged(Native Method)
> at sun.plugin.liveconnect.SecureInvocation$2.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at sun.plugin.liveconnect.SecureInvocation.CallMethod(Unknown Source)
> at sun.plugin.liveconnect.SecureInvocation.access$300(Unknown Source)
> at sun.plugin.liveconnect.SecureInvocation$CallMethodThread.run(Unknown Source)
>Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at sun.plugin.javascript.invoke.JSInvoke.invoke(Unknown Source)
> at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at sun.plugin.javascript.JSClassLoader.invoke(Unknown Source)
> at sun.plugin.liveconnect.PrivilegedCallMethodAction.run(Unknown Source)
> ... 6 more
>Caused by: java.util.regex.PatternSyntaxException: Dangling meta
>character '*' near index 45
>^http://www\.cinenews\.be/Movies.ByPlace.cfm?*
>
>Yes, apparently I messed up the regexp syntax a bit. Now the problem
>is that I'm now completely stuck with this error: reloading the .n3
>file has no effect (it keeps throwing the exception). Even
>de-installing and re-installing Piggy Bank doesn't clear the corrupted
>file. And I've checked in the Application Data's extension directory
>for a "scrapers" folder, but I didn't find such a thing.
>
>Please, how do I get rid of this error?
>
>On 4/20/06, Ryan Lee <ryanlee_at_w3.org> wrote:
>
>
>>Candide Kemmler wrote:
>>
>>
>>>Hi,
>>>
>>>I'm very impressed by the piggy bank extension. I would like to test
>>>one or two ideas of my own using this plaform, essentially by
>>>focussing on the potentially funnier aspects related to "socializing
>>>triples".
>>>
>>>Anyway, thus far I didn't manage to build anything. According to what
>>>I read, it seems that longwell is the first project to make. Please
>>>note that there are currently 3 branches of the software on the svn:
>>>
>>> - 1.x
>>> - 1.x-ajax
>>> - dfhuynh
>>>
>>>
>>Please use longwell/stable, not longwell/branches/*
>>
>>Let us know how it goes.
>>
>>--
>>Ryan Lee ryanlee_at_w3.org
>>W3C Research Engineer +1.617.253.5327
>>http://simile.mit.edu/
>>
>>
>>
>
>
>--
>Candide Kemmler
>3 rue du Bailli - 1000 Bruxelles
>mobile:+32485067980
>
>
Received on Tue Apr 25 2006 - 12:19:35 EDT