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Point在 geomesa 中使用几何类型来获取特征类型中的强经纬度细节。在存储新功能的用例中,我没有 lat-long 的价值,所以我尝试null为函数发送对象createPoint,但库“jts”在处理空几何类型时抛出异常。是源代码。通过查看jts库的实现,在geomesa Point中存储null似乎很困难。我可以尝试哪些可能性?这是我的代码的快照:

sf.setAttribute(Attributes.GEOMETRY.getValue(), JTSFactoryFinder.getGeometryFactory().createPoint((Coordinate)null/*new Coordinate(event.lat, event.lng)*/));

附加异常日志:

java.lang.IllegalStateException: getX called on empty Point
    at com.vividsolutions.jts.geom.Point.getX(Point.java:124)
    at org.locationtech.geomesa.utils.uuid.Z3UuidGenerator$.createUuid(Z3FeatureIdGenerator.scala:93)
    at org.locationtech.geomesa.utils.uuid.Z3UuidGenerator$.createUuid(Z3FeatureIdGenerator.scala:70)
    at org.locationtech.geomesa.utils.uuid.Z3FeatureIdGenerator.createId(Z3FeatureIdGenerator.scala:32)
    at org.locationtech.geomesa.index.geotools.GeoMesaFeatureWriter$.featureWithFid(GeoMesaFeatureWriter.scala:64)
    at org.locationtech.geomesa.index.geotools.GeoMesaFeatureWriter.writeFeature(GeoMesaFeatureWriter.scala:128)
    at org.locationtech.geomesa.index.geotools.GeoMesaAppendFeatureWriter$class.write(GeoMesaFeatureWriter.scala:194)
    at org.locationtech.geomesa.accumulo.data.AccumuloAppendFeatureWriter.write(AccumuloFeatureWriter.scala:19)
    at com.hps.GeomesaClient.insert(GeomesaClient.java:129)
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1 回答 1

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GeoMesa 是一个空间/时空数据库系统。因此,存储没有几何图形的数据不是主要用例。GeoMesa 中的许多索引都假定有效的经纬度点。

于 2017-05-16T15:07:19.633 回答