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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| // Copyright (c) 2018-2021 by Rob Norris | ||
| // This software is licensed under the MIT License (MIT). | ||
| // For more information see LICENSE or https://opensource.org/licenses/MIT | ||
|
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| package skunk.postgis | ||
| package ewkb | ||
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| import scodec.Attempt | ||
| import scodec.{Codec => Scodec} | ||
| import scodec.bits.BitVector | ||
| import scodec.bits.ByteOrdering | ||
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| trait EWKBCodecPlatform extends EWKBPrimitives { | ||
| def ewkbEncode(ewkb: EWKBType, geometry: Geometry, geoEncoder: Scodec[Geometry])(implicit bo: ByteOrdering): Attempt[BitVector] = { | ||
| val encoder = byteOrdering :: ewkbType :: geoEncoder | ||
| encoder.encode(bo :: ewkb :: geometry :: shapeless.HNil) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| // Copyright (c) 2018-2021 by Rob Norris | ||
| // This software is licensed under the MIT License (MIT). | ||
| // For more information see LICENSE or https://opensource.org/licenses/MIT | ||
|
|
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| package skunk.postgis | ||
| package ewkb | ||
|
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| import scodec.Attempt | ||
| import scodec.{Codec => Scodec} | ||
| import scodec.bits.BitVector | ||
| import scodec.bits.ByteOrdering | ||
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| trait EWKBCodecPlatform extends EWKBPrimitives { | ||
| def ewkbEncode(ewkb: EWKBType, geometry: Geometry, geoEncoder: Scodec[Geometry])(using bo: ByteOrdering): Attempt[BitVector] = { | ||
| val encoder = byteOrdering :: ewkbType :: geoEncoder | ||
| encoder.encode((bo, ewkb, geometry)) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| // Copyright (c) 2018-2021 by Rob Norris | ||
| // This software is licensed under the MIT License (MIT). | ||
| // For more information see LICENSE or https://opensource.org/licenses/MIT | ||
|
|
||
| package skunk | ||
| package postgis | ||
| package codecs | ||
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| import scala.reflect.ClassTag | ||
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| import cats.syntax.all._ | ||
| import scodec.bits.ByteVector | ||
| import skunk.data.Type | ||
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| trait PostGISGeometryCodecs { | ||
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| val geometry: Codec[Geometry] = Codec.simple[Geometry]( | ||
| geometry => ewkb.codecs.geometry.encode(geometry).require.toHex, | ||
| str => { | ||
| ByteVector.fromHex(str).fold(s"[postgis] Bad EWKB Hex: $str".asLeft[Geometry]) { byteVector => | ||
| ewkb.codecs.geometry.decodeValue(byteVector.toBitVector).toEither.leftMap(_.message) | ||
| } | ||
| }, | ||
| Type("geometry") | ||
| ) | ||
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| val point: Codec[Point] = geometryCodec[Point] | ||
| val lineString: Codec[LineString] = geometryCodec[LineString] | ||
| val polygon: Codec[Polygon] = geometryCodec[Polygon] | ||
| val multiPoint: Codec[MultiPoint] = geometryCodec[MultiPoint] | ||
| val multiLineString: Codec[MultiLineString] = geometryCodec[MultiLineString] | ||
| val multiPolygon: Codec[MultiPolygon] = geometryCodec[MultiPolygon] | ||
| val geometryCollection: Codec[GeometryCollection] = geometryCodec[GeometryCollection] | ||
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| private def geometryCodec[A >: Null <: Geometry](implicit A: ClassTag[A]): Codec[A] = { | ||
| geometry.imap[A](geom => A.runtimeClass.cast(geom).asInstanceOf[A])(o => | ||
| o.asInstanceOf[Geometry] | ||
| ) | ||
| } | ||
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| } | ||
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| object geometry extends PostGISGeometryCodecs | ||
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| object all extends PostGISGeometryCodecs |
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