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Spring Framework example source code file (ResourcePatternUtils.java)
The Spring Framework ResourcePatternUtils.java source code/* * Copyright 2002-2007 the original author or authors. * * 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.springframework.core.io.support; import org.springframework.core.io.ResourceLoader; import org.springframework.util.Assert; import org.springframework.util.ResourceUtils; /** * Utility class for determining whether a given URL is a resource * location that can be loaded via a ResourcePatternResolver. * * <p>Callers will usually assume that a location is a relative path * if the {@link #isUrl(String)} method returns <code>false. * * @author Juergen Hoeller * @since 1.2.3 */ public abstract class ResourcePatternUtils { /** * Return whether the given resource location is a URL: either a * special "classpath" or "classpath*" pseudo URL or a standard URL. * @param resourceLocation the location String to check * @return whether the location qualifies as a URL * @see ResourcePatternResolver#CLASSPATH_ALL_URL_PREFIX * @see org.springframework.util.ResourceUtils#CLASSPATH_URL_PREFIX * @see org.springframework.util.ResourceUtils#isUrl(String) * @see java.net.URL */ public static boolean isUrl(String resourceLocation) { return (resourceLocation != null && (resourceLocation.startsWith(ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX) || ResourceUtils.isUrl(resourceLocation))); } /** * Return a default ResourcePatternResolver for the given ResourceLoader. * <p>This might be the ResourceLoader itself, if it implements the * ResourcePatternResolver extension, or a PathMatchingResourcePatternResolver * built on the given ResourceLoader. * @param resourceLoader the ResourceLoader to build a pattern resolver for * (not <code>null) * @return the ResourcePatternResolver * @see PathMatchingResourcePatternResolver */ public static ResourcePatternResolver getResourcePatternResolver(ResourceLoader resourceLoader) { Assert.notNull(resourceLoader, "ResourceLoader must not be null"); if (resourceLoader instanceof ResourcePatternResolver) { return (ResourcePatternResolver) resourceLoader; } else { return new PathMatchingResourcePatternResolver(resourceLoader); } } } Other Spring Framework examples (source code examples)Here is a short list of links related to this Spring Framework ResourcePatternUtils.java source code file: |
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