diff options
Diffstat (limited to 'models-base/src/main/java/org/onap')
| -rw-r--r-- | models-base/src/main/java/org/onap/policy/models/base/PfUtils.java | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/models-base/src/main/java/org/onap/policy/models/base/PfUtils.java b/models-base/src/main/java/org/onap/policy/models/base/PfUtils.java index a18315ceb..8e77d3fcf 100644 --- a/models-base/src/main/java/org/onap/policy/models/base/PfUtils.java +++ b/models-base/src/main/java/org/onap/policy/models/base/PfUtils.java @@ -1,6 +1,7 @@ -/*- +/* * ============LICENSE_START======================================================= * Copyright (C) 2019 Nordix Foundation. + * Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved. * ================================================================================ * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -20,6 +21,10 @@ package org.onap.policy.models.base; +import java.util.List; +import java.util.function.Function; +import java.util.stream.Collectors; + /** * Utility class for Policy Framework concept utilities. * @@ -56,4 +61,20 @@ public final class PfUtils { return 0; } + + /** + * Convenience method to apply a mapping function to all of the elements of a list, + * generating a new list. + * + * @param source list whose elements are to be mapped, or {@code null} + * @param mapFunc mapping function + * @return a new list, containing mappings of all of the items in the original list + */ + public static <T> List<T> mapList(List<T> source, Function<T, T> mapFunc) { + if (source == null) { + return null; + } + + return source.stream().map(mapFunc).collect(Collectors.toList()); + } } |