| /* |
| * Copyright 2017 The Apache Software Foundation. |
| * |
| * 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 org.apache.storm.daemon.utils; |
| |
| import java.nio.file.Path; |
| |
| /** |
| * Utility functions to make Path manipulation slightly less verbose. |
| */ |
| public class PathUtil { |
| |
| /** |
| * Truncates path to the last numElements. |
| * @param path The path to truncate. |
| * @param numElements The number of elements to preserve at the end of the path. |
| * @return The truncated path. |
| */ |
| public static Path truncatePathToLastElements(Path path, int numElements) { |
| if (path.getNameCount() <= numElements) { |
| return path; |
| } |
| return path.subpath(path.getNameCount() - numElements, path.getNameCount()); |
| } |
| |
| } |