Steve Lawrence created DAFFODIL-3003:
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Summary: Unparsing streamed data without --stream causes
NullPointerException
Key: DAFFODIL-3003
URL: https://issues.apache.org/jira/browse/DAFFODIL-3003
Project: Daffodil
Issue Type: Bug
Components: Back End, CLI
Affects Versions: 3.10.0
Reporter: Steve Lawrence
If you parse data using the --stream option, e.g.
{code:xml}
daffodil parse -s foo.dfdl.xsd --stream data.bin > data.xml
{code}
Then the resulting XML is a bunch of XML infosets separated by a NUL character.
This NUL character is used by the CLI to delimit infosets when unparsing with
something like
{code:xml}
daffodil unparse -s foo.dfdl.xsd --stream data.xml
{code}
But if you try to unaprse that file without the --stream option, e.g.
{code:xml}
daffodil unparse -s foo.dfdl.xsd data.xml
{code}
Then you get the following null pointer exception:
{code}
java.lang.NullPointerException
at
com.ctc.wstx.sr.InputElementStack.getCurrentNsCount(InputElementStack.java:1029)
at
com.ctc.wstx.sr.BasicStreamReader.getNamespaceCount(BasicStreamReader.java:807)
at
org.codehaus.stax2.ri.evt.EndElementEventImpl.<init>(EndElementEventImpl.java:35)
at
com.ctc.wstx.evt.DefaultEventAllocator.allocate(DefaultEventAllocator.java:159)
at
org.apache.daffodil.runtime1.infoset.XMLTextInfosetInputter.liftedTree2$1(XMLTextInfosetInputter.scala:406)
at
org.apache.daffodil.runtime1.infoset.XMLTextInfosetInputter.nextTagOrEndDocument(XMLTextInfosetInputter.scala:400)
at
org.apache.daffodil.runtime1.infoset.XMLTextInfosetInputter.next(XMLTextInfosetInputter.scala:381)
at
org.apache.daffodil.runtime1.infoset.InfosetInputter.reallyFill(InfosetInputter.scala:302)
at
org.apache.daffodil.runtime1.infoset.InfosetInputter.fill(InfosetInputter.scala:291)
at
org.apache.daffodil.lib.util.CursorImplMixin.doAdvance(Cursor.scala:198)
at
org.apache.daffodil.lib.util.CursorImplMixin.advance(Cursor.scala:158)
at
org.apache.daffodil.lib.util.CursorImplMixin.advance$(Cursor.scala:155)
at
org.apache.daffodil.runtime1.infoset.InfosetInputter.advance(InfosetInputter.scala:82)
at
org.apache.daffodil.runtime1.processors.unparsers.UStateMain.advance(UState.scala:606)
at org.apache.daffodil.lib.util.Cursor.advanceMaybe(Cursor.scala:107)
at org.apache.daffodil.lib.util.Cursor.advanceMaybe$(Cursor.scala:106)
at
org.apache.daffodil.runtime1.processors.unparsers.UState.advanceMaybe(UState.scala:72)
at
org.apache.daffodil.runtime1.processors.DataProcessor.doUnparse(DataProcessor.scala:669)
at
org.apache.daffodil.runtime1.processors.DataProcessor.unparse(DataProcessor.scala:557)
at
org.apache.daffodil.runtime1.processors.DataProcessor.unparse(DataProcessor.scala:541)
at
org.apache.daffodil.cli.InfosetHandler.unparseWithInfosetInputter(InfosetTypes.scala:219)
at
org.apache.daffodil.cli.InfosetHandler.unparseWithInfosetInputter$(InfosetTypes.scala:215)
at
org.apache.daffodil.cli.XMLTextInfosetHandler.unparseWithInfosetInputter(InfosetTypes.scala:286)
at
org.apache.daffodil.cli.XMLTextInfosetHandler.unparse(InfosetTypes.scala:300)
at
org.apache.daffodil.cli.Main.$anonfun$runIgnoreExceptions$31(Main.scala:1609)
at org.apache.daffodil.lib.util.Timer$.getTimeResult(Timer.scala:78)
at org.apache.daffodil.lib.util.Timer$.getResult(Timer.scala:37)
at org.apache.daffodil.cli.Main.runIgnoreExceptions(Main.scala:1609)
at org.apache.daffodil.cli.Main.run(Main.scala:2001)
at org.apache.daffodil.cli.Main$.main(Main.scala:916)
at org.apache.daffodil.cli.Main.main(Main.scala)
{code}
An error is correct since this infoset is invalid, but we should get a better
diagnostics that says the input XML is invalid, and not an exception
The XMLTextInfosetInputter shoudl be able to detect this i
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