| /* |
| * 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.tuscany.sca.node; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.util.ArrayList; |
| import java.util.Enumeration; |
| import java.util.List; |
| |
| import org.oasisopen.sca.ServiceRuntimeException; |
| |
| /** |
| * ContributionLocationHelper |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class ContributionLocationHelper { |
| |
| /** |
| * Returns the location of the SCA contribution containing the given class. |
| * |
| * @param anchorClass |
| * @return |
| */ |
| public static String getContributionLocation(final Class<?> anchorClass) { |
| URL url = AccessController.doPrivileged(new PrivilegedAction<URL>() { |
| public URL run() { |
| return anchorClass.getProtectionDomain().getCodeSource().getLocation(); |
| } |
| }); |
| String uri = url.toString(); |
| return uri; |
| } |
| |
| /** |
| * Find the contribution location by seraching a resource on the classpath |
| * @param resourceName |
| * @return |
| */ |
| public static String getContributionLocation(String resourceName) { |
| return getContributionLocation(null, resourceName); |
| } |
| |
| /** |
| * Find the contribution locations by seraching a resource on the classpath |
| * @param resourceName |
| * @return |
| */ |
| public static List<String> getContributionLocations(String resourceName) { |
| return getContributionLocations(null, resourceName); |
| |
| } |
| |
| /** |
| * Find the contribution location by seraching a resource using the given classloader |
| * @param classLoader |
| * @param resourceName |
| * @return |
| */ |
| public static String getContributionLocation(ClassLoader classLoader, String resourceName) { |
| if (classLoader == null) { |
| classLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() { |
| public ClassLoader run() { |
| return Thread.currentThread().getContextClassLoader(); |
| } |
| }); |
| } |
| URL resourceURL = getResource(classLoader, resourceName); |
| if (resourceURL == null) { |
| return null; |
| } |
| return getRootLocation(resourceURL, resourceName); |
| } |
| |
| /** |
| * Find the contribution locations by seraching a resource using the given classloader |
| * @param classLoader The classloader that is used to call getResources() |
| * @param resourceName The name of the resource |
| * @return A list of locations that contain the resource |
| */ |
| public static List<String> getContributionLocations(ClassLoader classLoader, String resourceName) { |
| if (classLoader == null) { |
| classLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() { |
| public ClassLoader run() { |
| return Thread.currentThread().getContextClassLoader(); |
| } |
| }); |
| } |
| Enumeration<URL> resourceURLs = getResources(classLoader, resourceName); |
| List<String> locations = new ArrayList<String>(); |
| while (resourceURLs != null && resourceURLs.hasMoreElements()) { |
| locations.add(getRootLocation(resourceURLs.nextElement(), resourceName)); |
| } |
| return locations; |
| } |
| |
| private static String getRootLocation(URL resourceURL, String resourceName) { |
| String location = null; |
| // "jar:file://....../something.jar!/a/b/c/app.composite" |
| String url = resourceURL.toExternalForm(); |
| String protocol = resourceURL.getProtocol(); |
| if ("file".equals(protocol)) { |
| // directory contribution |
| if (url.endsWith(resourceName)) { |
| location = url.substring(0, url.lastIndexOf(resourceName)); |
| } |
| } else if ("jar".equals(protocol) || "wsjar".equals(protocol) || "zip".equals(protocol)) { |
| // jar contribution |
| location = url.substring(protocol.length() + 1, url.lastIndexOf("!/")); |
| } else if (url.endsWith(resourceName)) { |
| location = url.substring(0, url.lastIndexOf(resourceName)); |
| } else { |
| throw new IllegalArgumentException("The root of the resource cannot be determined: " + resourceURL |
| + "," |
| + resourceName); |
| } |
| return location; |
| } |
| |
| private static URL getResource(final ClassLoader classLoader, final String compositeURI) { |
| return AccessController.doPrivileged(new PrivilegedAction<URL>() { |
| public URL run() { |
| return classLoader.getResource(compositeURI); |
| } |
| }); |
| } |
| |
| private static Enumeration<URL> getResources(final ClassLoader classLoader, final String compositeURI) { |
| return AccessController.doPrivileged(new PrivilegedAction<Enumeration<URL>>() { |
| public Enumeration<URL> run() { |
| try { |
| return classLoader.getResources(compositeURI); |
| } catch (IOException e) { |
| throw new ServiceRuntimeException(e); |
| } |
| } |
| }); |
| } |
| |
| } |