diff options
Diffstat (limited to 'kamon-core/src/legacy-main/scala/kamon/util/MapMerge.scala')
-rw-r--r-- | kamon-core/src/legacy-main/scala/kamon/util/MapMerge.scala | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/kamon-core/src/legacy-main/scala/kamon/util/MapMerge.scala b/kamon-core/src/legacy-main/scala/kamon/util/MapMerge.scala deleted file mode 100644 index 6fc6fb15..00000000 --- a/kamon-core/src/legacy-main/scala/kamon/util/MapMerge.scala +++ /dev/null @@ -1,43 +0,0 @@ -/* - * ========================================================================================= - * Copyright © 2013-2015 the kamon project <http://kamon.io/> - * - * 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 kamon.util - -object MapMerge { - - /** - * Merge two immutable maps with the same key and value types, using the provided valueMerge function. - */ - implicit class Syntax[K, V](val map: Map[K, V]) extends AnyVal { - def merge(that: Map[K, V], valueMerge: (V, V) ⇒ V): Map[K, V] = { - val merged = Map.newBuilder[K, V] - - map.foreach { - case (key, value) ⇒ - val mergedValue = that.get(key).map(v ⇒ valueMerge(value, v)).getOrElse(value) - merged += key → mergedValue - } - - that.foreach { - case kv @ (key, _) if !map.contains(key) ⇒ merged += kv - case other ⇒ // ignore, already included. - } - - merged.result(); - } - } - -} |