fix IO closing

Author: AndreiKingsley

dataframe-geo/src/main/kotlin/org/jetbrains/kotlinx/dataframe/geo/io/read.kt

@@ -12,16 +12,25 @@ import java.net.URL
 fun GeoDataFrame.Companion.readGeoJson(path: String): GeoDataFrame<*> = readGeoJson(asURL(path))
 
 fun GeoDataFrame.Companion.readGeoJson(url: URL): GeoDataFrame<*> =
-    (FeatureJSON().readFeatureCollection(url.openStream()) as SimpleFeatureCollection).toGeoDataFrame()
+    url.openStream().use { inputStream ->
+        val featureCollection = FeatureJSON().readFeatureCollection(inputStream) as SimpleFeatureCollection
+        featureCollection.toGeoDataFrame()
+    }
 
 fun DataFrame.Companion.readGeoJson(path: String): GeoDataFrame<*> = GeoDataFrame.readGeoJson(path)
 
 fun DataFrame.Companion.readGeoJson(url: URL): GeoDataFrame<*> = GeoDataFrame.readGeoJson(url)
 
 fun GeoDataFrame.Companion.readShapefile(path: String): GeoDataFrame<*> = readShapefile(asURL(path))
 
-fun GeoDataFrame.Companion.readShapefile(url: URL): GeoDataFrame<*> =
-    ShapefileDataStoreFactory().createDataStore(url).featureSource.features.toGeoDataFrame()
+fun GeoDataFrame.Companion.readShapefile(url: URL): GeoDataFrame<*> {
+    val dataStore = ShapefileDataStoreFactory().createDataStore(url)
+    try {
+        return dataStore.featureSource.features.toGeoDataFrame()
+    } finally {
+        dataStore.dispose()
+    }
+}
 
 fun DataFrame.Companion.readShapefile(path: String): GeoDataFrame<*> = GeoDataFrame.readShapefile(path)
 

dataframe-geo/src/main/kotlin/org/jetbrains/kotlinx/dataframe/geo/io/write.kt

@@ -52,6 +52,7 @@ fun GeoDataFrame<*>.writeShapefile(directory: File) {
         e.printStackTrace()
         transaction.rollback()
     } finally {
+        dataStore.dispose()
         transaction.close()
     }
 }