geotrellis.server.ogc.conf.Conf.scala Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of geotrellis-server-stac-example_2.12 Show documentation

GeoTrellis Server is a set of components designed to simplify viewing, processing, and serving raster data from arbitrary sources with an emphasis on doing so in a functional style.

The newest version!

/*
 * Copyright 2020 Azavea
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package geotrellis.server.ogc.conf

import pureconfig._
import pureconfig.generic.auto._
import eu.timepit.refined.pureconfig._
import pureconfig.module.catseffect.syntax._
import cats.effect.{Resource, Sync}
import com.typesafe.config.ConfigFactory
import scalaxb.DataRecord

import java.io.File

/**
 * The top level configuration object for all layers and styles. This object should be supplied by the various sections in the provided configuration.
 * If the application won't start because of a bad configuration, start here and recursively descend through properties verifying that the
 * configuration file provides sufficient information.
 *
 * Complex types can be read with the help of [[ConfigReader]] instances. See package.scala and
 * https://pureconfig.github.io/docs/supporting-new-types.html for more examples and explanation of ConfigReader instances.
 */
case class Conf(
  layers: Map[String, OgcSourceConf],
  wms: Option[WmsConf],
  wmts: Option[WmtsConf],
  wcs: Option[WcsConf]
)

object Conf {
  lazy val load: Conf = ConfigSource.default.loadOrThrow[Conf]
  def loadF[F[_]: Sync](configPath: Option[String]): F[Conf] =
    configPath match {
      case Some(path) => ConfigSource.fromConfig(ConfigFactory.parseFile(new File(path))).loadF[F, Conf]
      case _          => ConfigSource.default.loadF[F, Conf]
    }

  def loadResourceF[F[_]: Sync](configPath: Option[String]): Resource[F, Conf] =
    Resource.eval(loadF[F](configPath))

  // This is a work-around to use pureconfig to read scalaxb generated case classes
  // DataRecord should never be specified from configuration, this satisfied the resolution
  // ConfigReader should be the containing class if DataRecord values need to be set
  implicit def dataRecordReader: ConfigReader[DataRecord[Any]] = null
}