--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxws/src/java.xml.ws/share/classes/javax/xml/soap/ServiceLoaderUtil.java Fri Nov 27 11:28:43 2015 +0100
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package javax.xml.soap;
+
+import java.util.ServiceLoader;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Shared ServiceLoader/FactoryFinder Utils shared among SAAJ, JAXB and JAXWS
+ * Class duplicated to all those projects.
+ *
+ * @author Miroslav.Kos@oracle.com
+ */
+class ServiceLoaderUtil {
+
+ static <P, T extends Exception> P firstByServiceLoader(Class<P> spiClass,
+ Logger logger,
+ ExceptionHandler<T> handler) throws T {
+ logger.log(Level.FINE, "Using java.util.ServiceLoader to find {0}", spiClass.getName());
+ // service discovery
+ try {
+ ServiceLoader<P> serviceLoader = ServiceLoader.load(spiClass);
+
+ for (P impl : serviceLoader) {
+ logger.fine("ServiceProvider loading Facility used; returning object [" +
+ impl.getClass().getName() + "]");
+
+ return impl;
+ }
+ } catch (Throwable t) {
+ throw handler.createException(t, "Error while searching for service [" + spiClass.getName() + "]");
+ }
+ return null;
+ }
+
+ static void checkPackageAccess(String className) {
+ // make sure that the current thread has an access to the package of the given name.
+ SecurityManager s = System.getSecurityManager();
+ if (s != null) {
+ int i = className.lastIndexOf('.');
+ if (i != -1) {
+ s.checkPackageAccess(className.substring(0, i));
+ }
+ }
+ }
+
+ static Class nullSafeLoadClass(String className, ClassLoader classLoader) throws ClassNotFoundException {
+ if (classLoader == null) {
+ return Class.forName(className);
+ } else {
+ return classLoader.loadClass(className);
+ }
+ }
+
+ // Returns instance of required class. It checks package access (security)
+ // unless it is defaultClassname. It means if you are trying to instantiate
+ // default implementation (fallback), pass the class name to both first and second parameter.
+ static <T extends Exception> Object newInstance(String className,
+ String defaultImplClassName, ClassLoader classLoader,
+ final ExceptionHandler<T> handler) throws T {
+ try {
+ return safeLoadClass(className, defaultImplClassName, classLoader).newInstance();
+ } catch (ClassNotFoundException x) {
+ throw handler.createException(x, "Provider " + className + " not found");
+ } catch (Exception x) {
+ throw handler.createException(x, "Provider " + className + " could not be instantiated: " + x);
+ }
+ }
+
+ static Class safeLoadClass(String className,
+ String defaultImplClassName,
+ ClassLoader classLoader) throws ClassNotFoundException {
+
+ try {
+ checkPackageAccess(className);
+ } catch (SecurityException se) {
+ // anyone can access the platform default factory class without permission
+ if (defaultImplClassName != null && defaultImplClassName.equals(className)) {
+ return Class.forName(className);
+ }
+ // not platform default implementation ...
+ throw se;
+ }
+ return nullSafeLoadClass(className, classLoader);
+ }
+
+ static <T extends Exception> ClassLoader contextClassLoader(ExceptionHandler<T> exceptionHandler) throws T {
+ try {
+ return Thread.currentThread().getContextClassLoader();
+ } catch (Exception x) {
+ throw exceptionHandler.createException(x, x.toString());
+ }
+ }
+
+ static abstract class ExceptionHandler<T extends Exception> {
+
+ public abstract T createException(Throwable throwable, String message);
+
+ }
+
+}