diff options
Diffstat (limited to 'hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/arrow/core.kt')
-rw-r--r-- | hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/arrow/core.kt | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/arrow/core.kt b/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/arrow/core.kt deleted file mode 100644 index 7381592d..00000000 --- a/hv-collector-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/utils/arrow/core.kt +++ /dev/null @@ -1,47 +0,0 @@ -/* - * ============LICENSE_START======================================================= - * dcaegen2-collectors-veshv - * ================================================================================ - * Copyright (C) 2018 NOKIA - * ================================================================================ - * 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. - * ============LICENSE_END========================================================= - */ -package org.onap.dcae.collectors.veshv.utils.arrow - -import arrow.core.Either -import arrow.core.Option -import arrow.core.identity -import arrow.syntax.collections.firstOption -import java.util.concurrent.atomic.AtomicReference - -/** - * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com> - * @since July 2018 - */ - -fun <A> Either<A, A>.flatten() = fold(::identity, ::identity) - -fun <B> Either<Throwable, B>.rightOrThrow() = fold({ throw it }, ::identity) - -fun <A, B> Either<A, B>.rightOrThrow(mapper: (A) -> Throwable) = fold({ throw mapper(it) }, ::identity) - -fun <A> AtomicReference<A>.getOption() = Option.fromNullable(get()) - -fun <A> Option.Companion.fromNullablesChain(firstValue: A?, vararg nextValues: () -> A?): Option<A> = - if (firstValue != null) - Option.just(firstValue) - else nextValues.asSequence() - .map { it() } - .filter { it != null } - .firstOption() |