hi! What should I use instead of StringBuffer ?
Any example or tutorial ? thanks Patrick On 28 March 2011 16:53, Simone Tripodi <[email protected]> wrote: > Hi Patrick, > nice to know you quickly fixed the issue before anybody could have > provided his help! :) > > As a side note, I would suggest you taking in consideration a > different solution for the XML generation rather the StringBuffer, > since you're parsing large dataset, streaming data while parsing > would improve the performances and reduce the consumed memory. > > Just my 2 cents, have a nice day, > Simo > > http://people.apache.org/~simonetripodi/ > http://www.99soft.org/ > > > > On Mon, Mar 28, 2011 at 2:28 PM, Patrick Diviacco > <[email protected]> wrote: > > I've solved. the issue was a row in train.xml file. To solve the issue > I've > > printed the source file rows while processing. However it has been > possible > > only because the parsing takes 4 minutes. > > > > I'm wondering how to debug such issues with a much bigger text file. > > > > thanks > > > > On 28 March 2011 14:14, Patrick Diviacco <[email protected]> > wrote: > > > >> And these are the files: > >> > >> http://dl.dropbox.com/u/72686/test.xml > >> > >> http://dl.dropbox.com/u/72686/train.xml > >> > >> thanks > >> > >> > >> On 28 March 2011 14:13, Patrick Diviacco <[email protected] > >wrote: > >> > >>> Hi, > >>> > >>> I've a 74MB xml document and I've split it into 2 docs:52MB and 22MB > >>> respectively. > >>> > >>> I'm parsing the file using common Digester library, and everything > works > >>> perfectly for the small file, but I get a NullPointerExceptio with the > big > >>> one. > >>> > >>> I don't think the issue is the code because it works for the small > file... > >>> I guess the problem is with the file itself. > >>> > >>> I've parsed the files with the same parser, so I don't think the files > >>> have issues either. > >>> > >>> In conclusion I dunno where the issue is. This is the code: > >>> http://pastie.org/1726063 > >>> > >>> This is the exception > >>> SEVERE: End event threw exception > >>> java.lang.reflect.InvocationTargetException > >>> at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source) > >>> at > >>> > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > >>> at java.lang.reflect.Method.invoke(Method.java:597) > >>> at > >>> > org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:216) > >>> at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:220) > >>> at org.apache.commons.digester.Rule.end(Rule.java:257) > >>> at org.apache.commons.digester.Digester.endElement(Digester.java:1345) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601) > >>> at > >>> > com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782) > >>> at > >>> > com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2938) > >>> at > >>> > com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648) > >>> at > >>> > com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205) > >>> at > >>> > com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522) > >>> at org.apache.commons.digester.Digester.parse(Digester.java:1871) > >>> at CentroidGenerator.main(CentroidGenerator.java:137) > >>> Caused by: java.lang.NullPointerException > >>> at CentroidGenerator.nextItem(CentroidGenerator.java:62) > >>> ... 19 more > >>> Exception in thread "main" java.lang.NullPointerException > >>> at > >>> > org.apache.commons.digester.Digester.createSAXException(Digester.java:3363) > >>> at > >>> > org.apache.commons.digester.Digester.createSAXException(Digester.java:3389) > >>> at org.apache.commons.digester.Digester.endElement(Digester.java:1348) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601) > >>> at > >>> > com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782) > >>> at > >>> > com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2938) > >>> at > >>> > com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648) > >>> at > >>> > com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119) > >>> at > >>> > com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205) > >>> at > >>> > com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522) > >>> at org.apache.commons.digester.Digester.parse(Digester.java:1871) > >>> at CentroidGenerator.main(CentroidGenerator.java:137) > >>> Caused by: java.lang.NullPointerException > >>> at CentroidGenerator.nextItem(CentroidGenerator.java:62) > >>> at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source) > >>> at > >>> > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > >>> at java.lang.reflect.Method.invoke(Method.java:597) > >>> at > >>> > org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:216) > >>> at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:220) > >>> at org.apache.commons.digester.Rule.end(Rule.java:257) > >>> at org.apache.commons.digester.Digester.endElement(Digester.java:1345) > >>> ... 12 more > >>> > >>> thanks > >>> > >> > >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
