Github user afs commented on a diff in the pull request:
https://github.com/apache/jena/pull/148#discussion_r66244682
--- Diff:
jena-arq/src/main/java/org/apache/jena/sparql/expr/nodevalue/XSDFuncOp.java ---
@@ -1554,4 +1551,55 @@ private static Duration
valueCanonicalDuration(NodeValue nv) {
// dur = ...
return dur ;
}
+
+ public static NodeValue adjustDatetimeToTimezone(NodeValue
nv1,NodeValue nv2){
+ if(nv1 == null)
+ return null;
+
+ if(!nv1.isDateTime() && !nv1.isDate() && !nv1.isTime()){
+ throw new ExprEvalException("Not a valid date, datetime or
time:"+nv1);
+ }
+
+ XMLGregorianCalendar calValue = nv1.getDateTime();
+ Boolean hasTz = calValue.getTimezone() !=
DatatypeConstants.FIELD_UNDEFINED;
+ int inputOffset = 0;
+ if(hasTz){
+ inputOffset = calValue.getTimezone();
+ }
+
+ int tzOffset = TimeZone.getDefault().getRawOffset() / (1000*60);
+ if(nv2 != null){
+ if(!nv2.isDuration()) {
+ String nv2StrValue = nv2.getString();
+ if(nv2StrValue.equals("")){
+
calValue.setTimezone(DatatypeConstants.FIELD_UNDEFINED);
+ if(nv1.isDateTime())
+ return NodeValue.makeDateTime(calValue);
+ else if(nv1.isTime())
+ return
NodeValue.makeNode(calValue.toXMLFormat(),XSDDatatype.XSDtime);
+ else
+ return NodeValue.makeDate(calValue);
+ }
+ throw new ExprEvalException("Not a valid duration:" + nv2);
+ }
+ Duration tzDuration = nv2.getDuration();
--- End diff --
```} else {
tzOffset = TimeZone.getDefault().getOffset(new
Date().getTime())/(1000*60) ;
}
```
so `new Date` is only called if needed.
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