[Xena-devel] [ xena-Bugs-3515030 ] NPE when normalises the zip file with custom FileNamer

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Bugs item #3515030, was opened at 2012-04-04 18:11
Message generated for change (Tracker Item Submitted) made by wisanupp
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Category: Normaliser
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Wisanu Promthong (wisanupp)
Assigned to: Nobody/Anonymous (nobody)
Summary: NPE when normalises the zip file with custom FileNamer

Initial Comment:
When we specify the ActiveFileNamer, it will cause NPE when trying to normalise the zip file. 

//-----Code snippet------
xena = new Xena();
//load the plugins
xena.loadPlugins(new File(config.getPlugin_path()));
//specify the custom FileNamer
xena.setActiveFileNamer(new DAFileNamer());

// initialize inputFile and destinationDir here

//must use zip file as an input to produce the error
NormaliserResults res = xena.normalise(new XenaInputSource(inputFile), new File(destinationDir), true);


//------End Code snippet ----
Result:
java.lang.NullPointerException
	at au.gov.naa.digipres.xena.kernel.filenamer.AbstractFileNamer.makeNewOpenFile(AbstractFileNamer.java:110)
	at au.gov.naa.digipres.xena.plugin.archive.ArchiveNormaliser.parse(ArchiveNormaliser.java:113)
	at au.gov.naa.digipres.xena.kernel.normalise.NormaliserManager.parse(NormaliserManager.java:877)
	at au.gov.naa.digipres.xena.kernel.normalise.NormaliserManager.normalise(NormaliserManager.java:1255)
	at au.gov.naa.digipres.xena.core.Xena.normalise(Xena.java:742)
	at au.gov.naa.digipres.xena.core.Xena.normalise(Xena.java:610)


Per my rough investigation, the root cause is the foreign FileNamer that XENA accept through setActiveFileNamer isn't get the FileNamerManger assigned (in FileNamerManager class) and subsequently case NPE when try to process the zip file.



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