| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 |
| * |
| * https://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.ivy.util; |
| |
| import java.io.File; |
| |
| /** |
| * Utility class used to perform some checks. |
| */ |
| public final class Checks { |
| private Checks() { |
| } |
| |
| /** |
| * Checks that an object is not null, and throw an exception if the object is null. |
| * |
| * @param o |
| * the object to check |
| * @param objectName |
| * the name of the object to check. This name will be used in the exception message. |
| * @throws IllegalArgumentException |
| * if the object is null |
| */ |
| public static void checkNotNull(Object o, String objectName) { |
| if (o == null) { |
| throw new IllegalArgumentException(objectName + " must not be null"); |
| } |
| } |
| |
| public static File checkAbsolute(File f, String fileName) { |
| checkNotNull(f, fileName); |
| if (!f.isAbsolute()) { |
| throw new IllegalArgumentException(fileName + " must be absolute: " + f.getPath()); |
| } |
| return FileUtil.normalize(f.getPath()); |
| } |
| |
| public static File checkAbsolute(String path, String fileName) { |
| checkNotNull(path, fileName); |
| File f = new File(path); |
| if (!f.isAbsolute()) { |
| throw new IllegalArgumentException(fileName + " must be absolute: " + path); |
| } |
| return FileUtil.normalize(f.getPath()); |
| } |
| } |