Re: [Repast-developer] Xerces versions and problems.

[Mark R. D. <mdi...@la...>]

I've identified the following Classes that are the only ones dependent 
on Xerces (by removing Xerces from my build path).

ChartArchiver.java    repast/src/uchicago/src/sim/analysis    line 76
CompUnitParser.java    repast/src/uchicago/src/codegen    line 12
FrameFactory.java    repast/src/uchicago/src/sim/gui    line 120
XMLParameterReader.java    repast/src/uchicago/src/sim/parameter    line 21

I went throught these files and adjusted the code to use JAXP. This is 
untested. Your current copy of xerces.jar has the JAXP dom and sax 
parsers api's present in it, so it should still be safe on pre 1.3.

-Mark


Mark R. Diggory wrote:

> Well, the good news is that using JAXP "frees up" the determination of 
> which XML parser to the point that you could easily package a pre 1.4 
> "Mac"able version of your packages that has the JAXP and your favorite 
> parser included and a "post 1.4" version that finds the JAXP in the 
> J2sdk.
>
> -M.
>
> Nick Collier wrote:
>
>> I agree. The reason we were using Xerces is for pre 1.4. support for the
>> Mac. However, I think Tom and I have decided to standardize on 1.4
>>
>> Nick
>>
>> On Wed, 2003-06-11 at 09:55, thowe wrote:
>>  
>>
>>> I agree, I like abstracting the parser implementation out like this.  I
>>> also like not having to include the xerces jar file.  If there is 
>>> anyone
>>> who is interested in working on this, that would be great.  I'll do it,
>>> if not, but I'm not sure when I can get to it.
>>>
>>> Thanks,
>>> Tom
>>>
>>> On Wed, 2003-06-11 at 08:49, Mark R. Diggory wrote:
>>>   
>>>
>>>> We keep encountering the following problem with RePast and trying 
>>>> to use Charts, I've been using a newer version of Xerces, I don't 
>>>> know if this is to blame. There appear to be issues with Xerces DTD 
>>>> validation feature attempting to resolve external ftp url's for 
>>>> some reason.
>>>>
>>>> I personally would recommend using the JAXP interface over Xerces 
>>>> directly, the default configuration and validation behavior is more 
>>>> predictable through the JAXP interface with something like:
>>>>
>>>> DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
>>>> DocumentBuilder docBuilder = factory.newDocumentBuilder();
>>>> Document doc = docBuilder.parse(new File(file));
>>>>
>>>> this frees you from the particular Xerces Implementation too. You 
>>>> can rely on the default parser implmentation included with the 
>>>> latest J2SDK (which I believe is actually Xerces right now) and not 
>>>> have to provide a copy of Xerces directly within your distribution.
>>>>
>>>> -Mark
>>>>
>>>> The exception:
>>>>         [java] Error loading persistent chart sizes and positions
>>>>         [java] java.net.UnknownHostException: C
>>>>         [java]     at 
>>>> java.net.InetAddress.getAllByName0(InetAddress.java:571)
>>>>         [java]     at 
>>>> java.net.InetAddress.getAllByName0(InetAddress.java:540)
>>>>         [java]     at 
>>>> java.net.InetAddress.getByName(InetAddress.java:449)
>>>>         [java]     at java.net.Socket.<init>(Socket.java:100)
>>>>         [java]     at 
>>>> sun.net.NetworkClient.doConnect(NetworkClient.java:50)
>>>>         [java]     at 
>>>> sun.net.NetworkClient.openServer(NetworkClient.java:38)
>>>>         [java]     at 
>>>> sun.net.ftp.FtpClient.openServer(FtpClient.java:267)
>>>>         [java]     at sun.net.ftp.FtpClient.<init>(FtpClient.java:381)
>>>>         [java]     at 
>>>> sun.net.www.protocol.ftp.FtpURLConnection.connect
>>>> (FtpURLConnection.java:77)
>>>>         [java]     at 
>>>> sun.net.www.protocol.ftp.FtpURLConnection.getInputStream
>>>> (FtpURLConnection.java:96)
>>>>         [java]     at java.net.URL.openStream(URL.java:798)
>>>>         [java]     at 
>>>> org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown
>>>> Source)
>>>>         [java]     at 
>>>> org.apache.xerces.impl.XMLEntityManager.startDocumentEntity
>>>> (Unknown Source)
>>>>         [java]     at 
>>>> org.apache.xerces.impl.XMLDocumentScannerImpl.setInputSource
>>>> (Unknown Source)
>>>>         [java]     at 
>>>> org.apache.xerces.parsers.DTDConfiguration.parse(Unknown
>>>> Source)
>>>>         [java]     at 
>>>> org.apache.xerces.parsers.DTDConfiguration.parse(Unknown
>>>> Source)
>>>>         [java]     at 
>>>> org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>>>>         [java]     at 
>>>> org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
>>>>         [java]     at uchicago.src.sim.analysis.ChartArchiver.loadXML
>>>> (ChartArchiver.java:77)
>>>>         [java]     at 
>>>> uchicago.src.sim.analysis.ChartArchiver.loadCharts
>>>> (ChartArchiver.java:67)
>>>>         [java]     at 
>>>> uchicago.src.sim.engine.AbstractGUIController.setModel
>>>> (AbstractGUIController.java:165)
>>>>         [java]     at uchicago.src.sim.engine.Controller.setModel
>>>> (Controller.java:146)
>>>