1 /*
2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
29 import java.util.logging.Level;
30 import java.util.logging.Logger;
31
32 /**
33 * Shared ServiceLoader/FactoryFinder Utils shared among SAAJ, JAXB and JAXWS
34 * Class duplicated to all those projects.
35 *
36 * @author Miroslav.Kos@oracle.com
37 */
38 class ServiceLoaderUtil {
39
40 static <P, T extends Exception> P firstByServiceLoader(Class<P> spiClass,
41 Logger logger,
42 ExceptionHandler<T> handler) throws T {
43 logger.log(Level.FINE, "Using java.util.ServiceLoader to find {0}", spiClass.getName());
44 // service discovery
45 try {
46 ServiceLoader<P> serviceLoader = ServiceLoader.load(spiClass);
47
48 for (P impl : serviceLoader) {
49 logger.fine("ServiceProvider loading Facility used; returning object [" +
50 impl.getClass().getName() + "]");
51
52 return impl;
53 }
54 } catch (Throwable t) {
55 throw handler.createException(t, "Error while searching for service [" + spiClass.getName() + "]");
56 }
57 return null;
58 }
59
60 static void checkPackageAccess(String className) {
61 // make sure that the current thread has an access to the package of the given name.
62 SecurityManager s = System.getSecurityManager();
63 if (s != null) {
64 int i = className.lastIndexOf('.');
65 if (i != -1) {
66 s.checkPackageAccess(className.substring(0, i));
67 }
68 }
69 }
70
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1 /*
2 * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
29 import java.util.logging.Level;
30 import java.util.logging.Logger;
31
32 /**
33 * Shared ServiceLoader/FactoryFinder Utils shared among SAAJ, JAXB and JAXWS
34 * Class duplicated to all those projects.
35 *
36 * @author Miroslav.Kos@oracle.com
37 */
38 class ServiceLoaderUtil {
39
40 static <P, T extends Exception> P firstByServiceLoader(Class<P> spiClass,
41 Logger logger,
42 ExceptionHandler<T> handler) throws T {
43 logger.log(Level.FINE, "Using java.util.ServiceLoader to find {0}", spiClass.getName());
44 // service discovery
45 try {
46 ServiceLoader<P> serviceLoader = ServiceLoader.load(spiClass);
47
48 for (P impl : serviceLoader) {
49 logger.log(Level.FINE, "ServiceProvider loading Facility used; returning object [{0}]", impl.getClass().getName());
50
51 return impl;
52 }
53 } catch (Throwable t) {
54 throw handler.createException(t, "Error while searching for service [" + spiClass.getName() + "]");
55 }
56 return null;
57 }
58
59 static void checkPackageAccess(String className) {
60 // make sure that the current thread has an access to the package of the given name.
61 SecurityManager s = System.getSecurityManager();
62 if (s != null) {
63 int i = className.lastIndexOf('.');
64 if (i != -1) {
65 s.checkPackageAccess(className.substring(0, i));
66 }
67 }
68 }
69
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