Re: [jnc-users] [javaCompiler-users] compiles and executes but throws java exception --help

[Marco T. <mt...@gm...>]

Steven Blade wrote:
>  >package ch.mtSystems.jnc.model.utilities;
> *and the package declaration should be the same as you gave me right ?i 
> just create this class in my project in this package after adding the 
> gnu jar and that's it.*
> *but no support for writing xml yet , oh well.*

The bug why your XML writing failed was fixed in GNU classpath and I 
imported it into GCJ. So it will work with the next version of JNC...


Marco

> *Maroc thanks alot for your time man, if you have any other suggestions 
> please tell me .*
> *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