Jakub Wach created JENA-2345:
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Summary: DatatypeConstraint could produce missleading message
Key: JENA-2345
URL: https://issues.apache.org/jira/browse/JENA-2345
Project: Apache Jena
Issue Type: Bug
Components: SHACL, ShEx
Affects Versions: Jena 4.5.0
Reporter: Jakub Wach
Attachments: DatatypeConstraint.patch
Description:
* SHACL implementation class DatatypeConstraint could return misleading
message when datatype of the literal node does violates the shape. e.g:
** `{color:#6a8759}Got datatype xs:int : Node
{color}{color:#cc7832}\"{color}{color:#6a8759}strValue2{color}{color:#cc7832}\"{color}`
** Current implementation does either quote expected datatype or actual
datatype of the node. It all depends on prefix mapping!
* Shape/constraint: https://www.w3.org/TR/shacl/#DatatypeConstraintComponent
Possible solutions:
* Always use expected data type:
** Possible messages:
*** {color:#6a8759}`Expected datatype xs:int : Node
{color}{color:#cc7832}\"{color}{color:#6a8759}strValue2{color}{color:#cc7832}\"{color}`,
*** {color:#6a8759}`Expected datatype <http://......./....> : Node
{color}{color:#cc7832}\"{color}{color:#6a8759}strValue2{color}{color:#cc7832}\"{color}`
** Keeps possibility to use prefix
** Somewhat consistent with ClassConstraint
** Possible patch in attachments (not tested!).
* Alternatively message could be similar to SHEX equivalent.
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