| /* |
| * 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 |
| * |
| * 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.iotdb.tsfile.utils; |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.net.URL; |
| import java.util.Enumeration; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| public class Loader { |
| private Loader() {} |
| |
| /** function for getting resources. */ |
| public static Set<URI> getResources(String resource, ClassLoader classLoader) |
| throws IOException, URISyntaxException { |
| Set<URI> uriSet = new HashSet<>(); |
| Enumeration<URL> urlEnum = classLoader.getResources(resource); |
| while (urlEnum.hasMoreElements()) { |
| uriSet.add(urlEnum.nextElement().toURI()); |
| } |
| return uriSet; |
| } |
| |
| public static URL getResource(String resource, ClassLoader classLoader) { |
| return classLoader.getResource(resource); |
| } |
| |
| /** function for getting the class loader of the given object. */ |
| public static ClassLoader getClassLoaderOfObject(Object o) { |
| if (o == null) { |
| throw new NullPointerException("Input object cannot be null"); |
| } |
| return getClassLoaderOfClass(o.getClass()); |
| } |
| |
| public static ClassLoader getClassLoaderOfClass(final Class<?> clazz) { |
| ClassLoader classLoader = clazz.getClassLoader(); |
| return classLoader == null ? ClassLoader.getSystemClassLoader() : classLoader; |
| } |
| } |