String features in out-of-typesystem data not normalized on service replies
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Key: UIMA-1707
URL: https://issues.apache.org/jira/browse/UIMA-1707
Project: UIMA
Issue Type: Bug
Components: C++ Framework
Affects Versions: 2.2.2
Reporter: Eddie Epstein
Assignee: Eddie Epstein
Fix For: 2.3C
Christoph Büscher to uima-user
I currently encountered a problem with the XMI deserialization of a feature
structure after calling a remote C++ AS annotator from a CPE. The szenario is
the following:
1. I add a custom feature structure "DocumentData" containing an String Feature
(the document URL) to the CAS in my CPE. The exact URL causing the problem is:
documentURL="http://www.gesundheitsnachrichten.net/live/navigation/live.php?navigation_id=11&_psmand=1";
2. The CAS get's serialized to XMI before sending it to a remote C++ TAE. I
added a breakpoint to UimaSerializer.serializeCasToXmi() and get the following
part in the XMI string:
documentURL="http://www.gesundheitsnachrichten.net/live/navigation/live.php?navigation_id=11&_psmand=1";
So here the "&" character seems to be excaped correctly.
3. When the document comes back, the same feature in the XMI string received in
UimaSerializer.deserializeCasFromXmi() reads:
documentURL="http://www.gesundheitsnachrichten.net/live/navigation/live.php?navigation_id=11&_psmand=1";
an now the SAXParser throws the following exception:
org.xml.sax.SAXParseException: The reference to entity "_psmand" must end with
the ';' delimiter.
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at
org.apache.uima.aae.UimaSerializer.deserializeCasFromXmi(UimaSerializer.java:170)
at ...
because the "&" comes back unescaped.
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Christoph Büscher to uima-user
I did some further testing and the problem seems to happen when the FS is not
declared in the remote C++ TAE but declared and set in an AE in the (lokal) main
application (in out case a CPE running various Java AEs).
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Nice work Christoph!
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