Dear geomesa developers,
First of all many thanks
for the Geomesa project: I am an happy user, and it is
very useful.
I am trying to use the TubeSelectProcess, but I am getting the following error:
16/07/25 17:20:24 ERROR
tube.NoGapFill: Unable to retrieve date field from input
tubeFeatures...ensure there a field named dtg
java.lang.IllegalArgumentException:
Unable to retrieve date field from input
tubeFeatures...ensure there a field named "dtg"
at
org.locationtech.geomesa.accumulo.process.tube.TubeBuilder$$anonfun$transform$1.apply(TubeBuilder.scala:94)
at
org.locationtech.geomesa.accumulo.process.tube.TubeBuilder$$anonfun$transform$1.apply(TubeBuilder.scala:86)
at
scala.collection.Iterator$$anon$11.next(Iterator.scala:370)
at
scala.collection.Iterator$$anon$11.next(Iterator.scala:370)
at
scala.collection.Iterator$class.toStream(Iterator.scala:1180)
at
scala.collection.AbstractIterator.toStream(Iterator.scala:1194)
at
scala.collection.TraversableOnce$class.toSeq(TraversableOnce.scala:296)
at
scala.collection.AbstractIterator.toSeq(Iterator.scala:1194)
at
org.locationtech.geomesa.accumulo.process.tube.NoGapFill.createTube(TubeBuilder.scala:141)
at
org.locationtech.geomesa.accumulo.process.tube.TubeVisitor.tubeSelect(TubeSelectProcess.scala:161)
at
org.locationtech.geomesa.accumulo.data.AccumuloFeatureCollection.accepts(AccumuloFeatureSource.scala:135)
at
org.locationtech.geomesa.accumulo.process.tube.TubeSelectProcess.execute(TubeSelectProcess.scala:109)
It seems that it is looking
in my catalog for a default field that has to be called
to “dtg”.
My catalog has his own data
field with a different name (TS instead of dtg), and
scanning the metadata table I can see that there is a link
between the dtgfield and my own field
<snip>
~METADATA_positional dtgfield:
[] TS
</snip>
Further debugging bring me
to a piece of code that I suppose could be my problem
def extractDtgField(sft: SimpleFeatureType) =
sft.getAttributeDescriptors
.filter { _.getUserData.contains(Constants.SF_PROPERTY_START_TIME) }
.headOption
.map { _.getName.toString }
.getOrElse(DEFAULT_DTG_FIELD)
This is seems to be always
the default_dfg_field value.
The process that I am doing
is to query with different filters my catalog, creating 2
different datasets: the input collection, and the dataset
where to check matching features, and then run the
TubeSelectionProcess over the two datasets.
For the context: I tried to
run the same code on a catalog that contained the “dtg”
field as the Date field, and the process was fine and I
was getting the results that I wanted/expected.
The stack that I am using
is Accumulo 1.7.0, Geomesa 1.2.1
GeoMesa Version 1.2.1 built on
2016-03-25 16:17.
Commit ID:
e577807844341849afeab04f5d034c6ca1b663c4
Branch: geomesa-1.2.1
Any advice would be very
much appreciate.
Many thanks,
Federica
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