NullPointerException when axis does not exist in CRS definition

[Dimitar Misev]

This case should return a proper exception. E.g. using x/y instead of Lat/Long in

for c in (mean_summer_airtemp)  return encode(crsTransform(c, { x:"http://www.opengis.net/def/crs/EPSG/0/54030", y:"http://www.opengis.net/def/crs/EPSG/0/54030"}, {}), "tiff")

results in

 TRACE [13:06:11] DimensionIntervalElement@74: axis
 TRACE [13:06:11] DynamicMetadataSource@104: Reading metadata for dynamic coverage: mean_summer_airtemp
 TRACE [13:06:11] DynamicMetadataSource@110: coverages: [rgb, mean_summer_airtemp, mr, irr_cube_1, eobstest]
 DEBUG [13:06:11] DbMetadataSource@851: Reading metadata for coverage 'mean_summer_airtemp'
 TRACE [13:06:11] DbMetadataSource@860: Returning cached coverage metadata.
 TRACE [13:06:11] AxisName@43: axis
 TRACE [13:06:11] AxisName@46:   axis name: x
 TRACE [13:06:11] Crs@60: srsName
 TRACE [13:06:11] Crs@68: Found CRS: http://www.opengis.net/def/crs/EPSG/0/54030
 TRACE [13:06:11] AxisName@43: axis
 TRACE [13:06:11] AxisName@46:   axis name: y
 TRACE [13:06:11] Crs@60: srsName
 TRACE [13:06:11] Crs@68: Found CRS: http://www.opengis.net/def/crs/EPSG/0/54030
 ERROR [13:06:44] WcpsServlet@263: WCPS: error
 ERROR [13:06:44] WcpsServlet@264: WCPS: setting response mimetype to text/html; charset=utf-8
 ERROR [13:06:44] WcpsServlet@266: WCPS: returning the following error message
java.lang.NullPointerException
	at petascope.wcps.server.core.DimensionIntervalElement.stars2bounds(DimensionIntervalElement.java:329)
	at petascope.wcps.server.core.DimensionIntervalElement.<init>(DimensionIntervalElement.java:164)
	at petascope.wcps.server.core.CrsTransformCoverageExpr.<init>(CrsTransformCoverageExpr.java:76)
	at petascope.wcps.server.core.CoverageExpr.<init>(CoverageExpr.java:90)
	at petascope.wcps.server.core.EncodeDataExpr.<init>(EncodeDataExpr.java:77)
	at petascope.wcps.server.core.XmlQuery.startParsing(XmlQuery.java:120)
	at petascope.wcps.server.core.ProcessCoveragesRequest.<init>(ProcessCoveragesRequest.java:102)
	at petascope.wcps.server.core.Wcps.pcPrepare(Wcps.java:118)
	at petascope.wcps.server.core.Wcps.pcPrepare(Wcps.java:112)
	at petascope.wcps.server.servlet.WcpsServlet.doPost(WcpsServlet.java:181)

[Dimitar Misev]

Actually it seems like ​http://www.opengis.net/def/crs/EPSG/0/54030 does not exist..

<ows:ExceptionReport version="2.0.0" xsd:schemaLocation="http://www.opengis.net/ows/2.0 http://schemas.opengis.net/ows/2.0/owsExceptionReport.xsd" xmlns:ows="http://www.opengis.net/ows/2.0" xmlns:xsd="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink">
  <ows:Exception exceptionCode="NoSuchDefinition">
    <ows:ExceptionText>Failed resolving http://www.opengis.net/def/crs/EPSG/0/54030</ows:ExceptionText>
  </ows:Exception>
</ows:ExceptionReport>

But it should exist: ​http://spatialreference.org/ref/esri/54030/gml/

[Piero Campalani]

Here I get:

WCPS Error: crsTransform expression not implemented.

which is the good answer.
Dimitar probably you you on r'e where the crsTransform operation is available: close this as invalid in that case, thx.

[Dimitar Misev]

Yeah I was thinking of a community equivalent query.. maybe scale instead of crsTransform?