2020/07/20 01:53:55 - GIS File input.0 - ERROR (version 8.3.0.0-371, build 8.3.0.0-371 from 2019-06-11 11.09.08 by buildguy) : Unexpected error
2020/07/20 01:53:55 - GIS File input.0 - ERROR (version 8.3.0.0-371, build 8.3.0.0-371 from 2019-06-11 11.09.08 by buildguy) : org.pentaho.di.core.exception.KettleValueException:
2020/07/20 01:53:55 - GIS File input.0 - Unexpected conversion error while converting value [property Number] to a Number
2020/07/20 01:53:55 - GIS File input.0 - java.lang.Integer cannot be cast to java.lang.Double
2020/07/20 01:53:55 - GIS File input.0 -
2020/07/20 01:53:55 - GIS File input.0 - at org.pentaho.di.core.row.value.ValueMetaBase.getNumber(ValueMetaBase.java:2035)
2020/07/20 01:53:55 - GIS File input.0 - at com.atolcd.pentaho.di.gis.io.features.FeatureConverter.getRow(FeatureConverter.java:217)
2020/07/20 01:53:55 - GIS File input.0 - at com.atolcd.pentaho.di.trans.steps.gisfileinput.GisFileInput.processRow(GisFileInput.java:106)
2020/07/20 01:53:55 - GIS File input.0 - at org.pentaho.di.trans.step.RunThread.run(RunThread.java:62)
2020/07/20 01:53:55 - GIS File input.0 - at java.lang.Thread.run(Thread.java:748)
I believe the cause of this error is the assumption in the GeoJSONReader constructor (line 68):
org.wololo.geojson.Feature geoJsonfeature = ((FeatureCollection) json).getFeatures()[0];
which determines the structure of GeoJSON properties by looking at only the first feature. This will also cause any property that does not appear in the first record (or has a null value ) to be ignored. (see #22 for an issue handling null property values)
If different instance of a property have different numeric types (integer, decimal) then a type conversion error results:
For instance:
causes
I believe the cause of this error is the assumption in the GeoJSONReader constructor (line 68):
org.wololo.geojson.Feature geoJsonfeature = ((FeatureCollection) json).getFeatures()[0];
which determines the structure of GeoJSON properties by looking at only the first feature. This will also cause any property that does not appear in the first record (or has a null value ) to be ignored. (see #22 for an issue handling null property values)
Using Kettle 8.3.0.0-371 and GIS Plugin V1.3.0