Re: [jnc-users] [javaCompiler-users] compiles and executes but throws java exception --help
Status: Beta
Brought to you by:
soapy
Menu
▾
▴
Re: [jnc-users] [javaCompiler-users] compiles and executes but throws java exception --help
|
From: Marco T. <mt...@gm...> - 2007-02-15 13:01:51
|
Steven Blade wrote:
> >package ch.mtSystems.jnc.model.utilities;
> *and the package declaration should be the same as you gave me right ?
No. It doesn't matter in which class or package it is. The only thing
that matters is that the compiler runs into statements like:
gnu.xml.dom.ls.SAXEventSink.class.getName();
So that he knows to include gnu.xml.dom.ls.SAXEventSink because you need
it. Did you read the manual part about that I told you? It's all
explained in there...
> i
> just create this class in my project in this package after adding the
> gnu jar and that's it.*
You don't have to do that. Just put the class I gave you or one that you
made yourself somewhere on your drive and add it only to the
compilation. Don't add a jar to the project or that file to the project
when you're developing. It's not necessary and not needed. It's only
needed for native compilation and only a hint to the compiler. You won't
need it ever...
> *but no support for writing xml yet , oh well.*
Definitely not the way you did in your sample applications. There
probably are hundreds of other ways that will work...
> *Maroc thanks alot for your time man, if you have any other suggestions
> please tell me .*
You could always hire me to fix it or find another solution. Of course
that would cost something... Contact me in private if you're interested...
Marco
> *Thanks*
>
> On 2/15/07, *Marco Trudel* <mt...@gm... <mailto:mt...@gm...>> wrote:
>
> Please always do "reply all", else we loose the mailinglist...
>
>
> Steven Blade wrote:
> > ok sure thing but please show me where to use the static block of
> code ok.
>
> Thanks for the sample. Just put that code in an own class (as the
> attached XmlLoader.java) and add this class to the JNC compilation
> source. This will ensure that the needed objects are pulled into the
> binary.
> You do not have to change your source.
>
>
> > did it work both ways with you reading and transforming xml ?
>
> Reading works, writing (transforming) fails. I'll create a bugreport
> (it's probably a GNU classpath bug) and hope that the fix will be in JNC
> 1.2.
>
> > one more thing does that mean i have to use gnu's jar instead of
> java's ?
>
> No, you only have to ensure that your binary contains the xml stuff.
> This is done with the static initializer since it references the xml
> stuff and thus ld - the linker - will add them.
>
>
> Marco
>
>
> > import java.io.BufferedReader;
> > import java.io.File;
> > import java.io.InputStreamReader;
> >
> > import javax.xml.parsers.SAXParser;
> > import javax.xml.parsers.SAXParserFactory;
> > import javax.xml.transform.OutputKeys;
> > import javax.xml.transform.Transformer ;
> > import javax.xml.transform.sax.SAXTransformerFactory;
> > import javax.xml.transform.sax.TransformerHandler;
> > import javax.xml.transform.stream.StreamResult;
> >
> > import org.xml.sax.Attributes ;
> > import org.xml.sax.SAXException;
> > import org.xml.sax.helpers.AttributesImpl;
> > import org.xml.sax.helpers.DefaultHandler;
> >
> >
> > public class Foo extends DefaultHandler{
> >
> > /**
> > * @param args
> > */
> > private static File file;
> > private static String contents;
> > private static Foo f=new Foo();
> > public static void main(String[] args) {
> > // TODO Auto-generated method stub
> > System.out.print("enter location of xml file to
> read ");
> > BufferedReader input=new BufferedReader(new
> InputStreamReader( System.in <http://System.in>));
> > try
> > {
> > String sfile=input.readLine();
> > file=new File(sfile);
> > readXml();
> > System.out.print(contents);
> > writeXml();
> > }catch(Exception _){_.printStackTrace();}
> > }
> > private static void writeXml()
> > {
> > SAXTransformerFactory
> factory=(SAXTransformerFactory)SAXTransformerFactory.newInstance();
> > try{
> > StreamResult stream=new StreamResult(System.out);
> > TransformerHandler handler=
> factory.newTransformerHandler();
> > Transformer trans=handler.getTransformer();
> > trans.setOutputProperty (OutputKeys.ENCODING,"ISO-8859-1");
> > trans.setOutputProperty (OutputKeys.INDENT,"yes");
> > handler.setResult(stream);
> > handler.startDocument();
> > AttributesImpl atts=new AttributesImpl();
> > handler.startElement("", "", "test", atts);
> > atts.clear();
> > handler.startElement("", "", "foo", atts);
> > handler.characters(new char[]{'a','b','c'}, 0, 3);
> > handler.endElement("", "", "foo");
> > handler.endElement("", "", "test");
> > handler.endDocument();
> > }catch(Exception _){_.printStackTrace();}
> > }
> >
> > private static void readXml()
> > {
> > System.out.println("reading xml...");
> > try{
> > SAXParserFactory factory=
> SAXParserFactory.newInstance(); // the exception points to this line
> > factory.setValidating(false);
> > SAXParser parser=factory.newSAXParser();
> > parser.parse (file, f.new OwnHandler());
> > }
> > catch(Exception _){_.printStackTrace();}
> > }
> >
> > private class OwnHandler extends DefaultHandler{
> >
> > public void startElement(String namespaceURI,
> > String sName,
> > String qName,
> > Attributes attrs) throws SAXException{
> > contents+="<"+qName+">";
> > }
> > public void endElement(String uri, String localName,
> String qName) throws SAXException{
> > contents+="<"+qName+"/>";
> > }
> > public void characters(char[] buf,int offset,int
> length)throws SAXException{
> > contents+=new String(buf,offset,length);
> > }
> > }
> > }
> >
> >
> >
> >
> >
> ------------------------------------------------------------------------
> >
> > <?xml version=1.0 encoding=UTF-8?>
> > <test>
> > <line>testing java native compiler</line>
> > </test>
>
>
> package ch.mtSystems.jnc.model.utilities;
>
> public class XmlLoader
> {
> static
> {
> gnu.xml.dom.ls.SAXEventSink.class.getName();
> gnu.xml.transform.TransformerFactoryImpl.class.getName();
> gnu.xml.xpath.XPathFactoryImpl.class.getName();
> org.xml.sax.ContentHandler.class.getName();
> gnu.xml.stream.SAXParserFactory.class.getName ();
> }
> }
>
>
>
>
> --
> kc
|
