io.pdal.pipeline.package.scala Maven / Gradle / Ivy
/*
* Copyright 2017 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 io.pdal
import io.circe.Json
import io.circe.syntax._
/**
* There is no implicit PipelineExprToString function to avoid
* implicit casts in places where PipelineConstructor should be used.
*/
package object pipeline extends json.Implicits with Implicits with Serializable {
type PipelineConstructor = List[PipelineExpr]
implicit class withPipelineConstructor(list: PipelineConstructor) {
def ~(e: PipelineExpr): PipelineConstructor = list :+ e
def ~(e: Option[PipelineExpr]): PipelineConstructor = e.fold(list)(el => list :+ el)
def map[B](f: PipelineExpr => B): List[B] = list.map(f)
def toPipeline = Pipeline(list.asJson.noSpaces)
}
implicit def pipelineExprToConstructor[T <: PipelineExpr](expr: T): PipelineConstructor = expr :: Nil
implicit def pipelineExprToJson(expr: PipelineExpr): Json = expr.asJson
implicit def pipelineConstructorToJson(expr: PipelineConstructor): Json = expr.asJson
implicit def pipelineConstructorToString(expr: PipelineConstructor): String = expr.asJson.noSpaces
}