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MergeConfigBuilder.scala
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MergeConfigBuilder.scala
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/*
* Copyright (c) 2021 Typelevel
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package fabric.merge
import fabric.{Arr, Json, JsonPath, MergeType, Obj}
case class MergeConfigBuilder(
`type`: MergeType = MergeType.Overwrite,
defaultArr: JsonMerge[Arr] = ArrReplaceMerge,
defaultObj: JsonMerge[Obj] = ObjMerge,
overrides: Map[JsonPath, JsonMerge[Json]] = Map.empty
) extends MergeConfig {
override def merge(json1: Json, json2: Json, path: JsonPath): Json = overrides.get(path) match {
case Some(merge) => merge.merge(path, json1, json2, this)
case None if json1.`type` != json2.`type` =>
`type` match {
case MergeType.Overwrite => json2
case MergeType.Add => json1
case MergeType.ErrorOnDuplicate => throw new RuntimeException(
s"Cannot merge different types: $json1 -> $json2 ($path)"
)
}
case None =>
if (json1.isArr) {
defaultArr.merge(path, json1.asArr, json2.asArr, this)
} else if (json1.isObj) {
defaultObj.merge(path, json1.asObj, json2.asObj, this)
} else {
`type` match {
case MergeType.Overwrite => json2
case MergeType.Add => json1
case MergeType.ErrorOnDuplicate => throw new RuntimeException(
s"Duplicate found at $path, existing: $json1, new: $json2"
)
}
}
}
def withOverride[T <: Json](
path: JsonPath,
jsonMerge: JsonMerge[T]
): MergeConfigBuilder = copy(
overrides = overrides + (path -> jsonMerge.asInstanceOf[JsonMerge[Json]])
)
}