Mike Roberts created OLINGO-1290:
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Summary: Numeric values with more than 17 digits of precision
cause error
Key: OLINGO-1290
URL: https://issues.apache.org/jira/browse/OLINGO-1290
Project: Olingo
Issue Type: Bug
Components: odata4-client, odata4-commons
Affects Versions: (Java) V4 4.5.0
Reporter: Mike Roberts
The IBM Cognos TM1 (OData compliant) REST API can return values such as this ...
"@odata.context": "../$metadata#Cellsets('l8-ZO2wMAIABAAAg')/Cells(Value)",
"value": [{
"Value": 70
},
{
"Value": -0.043099999999995475
}]
This causes the following error ...
2018-09-08 07:41:30,214 ERROR o.a.o.c.a.d.ClientEntitySetIterator [main] Error
retrieving entities from EntitySet
...
Caused by: org.apache.olingo.commons.api.edm.EdmPrimitiveTypeException: The
literal '-0.043099999999995475' has illegal content.
at
org.apache.olingo.commons.core.edm.primitivetype.EdmDouble.internalValueOfString(EdmDouble.java:80)
~[org.apache.olingo-odata-commons-core-4.5.0.jar:?]
I investigated further and noted that the code uses a pattern ...
private static final Pattern PATTERN = Pattern.compile(
"(?:\\+|-)?\\p\{Digit}{1,17}(?:\\.\\p\{Digit}{1,17})?(?:(?:E|e)(?:\\+|-)?\\p\{Digit}{1,3})?");
.. which is the cause of this error because we have 18 digits after the decimal
point.
The TM1 architect contacted [~RalfHandl] who said ...
"Olingo is too restrictive here, OData does not add any restrictions on
representation of numbers on top of the JSON RFC."
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