xsd2inst incorrectly handling numeric precision
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Key: XMLBEANS-410
URL: https://issues.apache.org/jira/browse/XMLBEANS-410
Project: XMLBeans
Issue Type: Bug
Components: Tools
Affects Versions: Version 2.4.1
Environment: All OS, all hardware
Reporter: Mark D Henning
Fix For: TBD
as an example, a xs:decimal (totalDig:20, fracDig:0) was creating 1000.00 whic
of course, does not validate.
The problem is in the org.apache.xmlbeans.impl.xsd2inst.SampleXmlUtil.java
class.
Root cause of the problem is that the programmer was calling the setScale()
method on a BigDecimal, as though it modifies the existing BigDecimal object
(i.e. BigDecimal bd = new BigDecimal("1000.00"); bd.setScale(1)) setScale does
not modify the existing, but returns a new BigDecimal object. Therefore the
correct call would be (BigDecimal bd = new BigDecimal("1000.00"); bd =
bd.setScale(1)).
The lines included below represent the repair of the formatDecimal() method
which is the eronious function.
// We have the number
// Adjust the scale according to the totalDigits and fractionDigits
int digits = 0;
BigDecimal ONE = new BigDecimal(BigInteger.ONE);
for (BigDecimal n = result; n.abs().compareTo(ONE) >= 0; digits++)
n = n.movePointLeft(1);
if (fractionDigits > 0)
if (totalDigits >= 0)
result = result.setScale(Math.max(fractionDigits, totalDigits -
digits));
else
result = result.setScale(fractionDigits);
else if (fractionDigits == 0)
result = result.setScale(0);
return result.toString();
}
I would recommend that the code tree be searched for other setScale method
calls to see if others need to be fixed. I currently do not have write access
to the subversion repository, so I am unable to check this fix in myself.
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