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
23 * questions.
24 */
25
26 package javax.xml.bind;
27
28 import java.io.File;
29 import java.io.FileInputStream;
30 import java.io.IOException;
31 import java.lang.reflect.Method;
32 import java.security.AccessController;
33 import java.security.PrivilegedAction;
34 import java.util.Iterator;
35 import java.util.Properties;
36 import java.util.ServiceLoader;
37 import java.util.logging.Level;
38 import java.util.logging.Logger;
39
40 /**
41 * Shared ServiceLoader/FactoryFinder Utils shared among SAAJ, JAXB and JAXWS
42 * - this class must be duplicated to all those projects, but it's
43 * basically generic code and we want to have it everywhere same.
44 *
45 * @author Miroslav.Kos@oracle.com
46 */
47 class ServiceLoaderUtil {
48
49 private static final String OSGI_SERVICE_LOADER_CLASS_NAME = "com.sun.org.glassfish.hk2.osgiresourcelocator.ServiceLoader";
50 private static final String OSGI_SERVICE_LOADER_METHOD_NAME = "lookupProviderClasses";
51
52 static <P> P firstByServiceLoader(Class<P> spiClass, Logger logger) {
53 // service discovery
54 ServiceLoader<P> serviceLoader = ServiceLoader.load(spiClass);
55 for (P impl : serviceLoader) {
56 logger.fine("ServiceProvider loading Facility used; returning object [" + impl.getClass().getName() + "]");
57 return impl;
58 }
59 return null;
60 }
61
62 static boolean isOsgi(Logger logger) {
63 try {
64 Class.forName(OSGI_SERVICE_LOADER_CLASS_NAME);
65 return true;
66 } catch (ClassNotFoundException ignored) {
67 logger.log(Level.FINE, "OSGi classes not found, OSGi not available.", ignored);
68 }
69 return false;
70 }
71
72 static Object lookupUsingOSGiServiceLoader(String factoryId, Logger logger) {
73 try {
74 // Use reflection to avoid having any dependendcy on ServiceLoader class
75 Class serviceClass = Class.forName(factoryId);
76 Class target = Class.forName(OSGI_SERVICE_LOADER_CLASS_NAME);
77 Method m = target.getMethod(OSGI_SERVICE_LOADER_METHOD_NAME, Class.class);
78 Iterator iter = ((Iterable) m.invoke(null, serviceClass)).iterator();
79 if (iter.hasNext()) {
80 Object next = iter.next();
81 logger.fine("Found implementation using OSGi facility; returning object [" + next.getClass().getName() + "].");
82 return next;
83 } else {
84 return null;
85 }
86 } catch (Exception ignored) {
87 logger.log(Level.FINE, "Unable to find from OSGi: [" + factoryId + "]", ignored);
88 return null;
89 }
90 }
91
92 static String propertyFileLookup(final String configFullPath, final String factoryId) throws IOException {
93 File f = new File(configFullPath);
94 String factoryClassName = null;
95 if (f.exists()) {
96 Properties props = new Properties();
97 FileInputStream stream = null;
98 try {
99 stream = new FileInputStream(f);
100 props.load(stream);
101 factoryClassName = props.getProperty(factoryId);
102 } finally {
103 if (stream != null) {
104 try {
105 stream.close();
106 } catch (IOException ignored) {
|
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
23 * questions.
24 */
25
26 package javax.xml.bind;
27
28 import java.io.File;
29 import java.io.FileInputStream;
30 import java.io.IOException;
31 import java.lang.reflect.InvocationTargetException;
32 import java.lang.reflect.Method;
33 import java.security.AccessController;
34 import java.security.PrivilegedAction;
35 import java.util.Iterator;
36 import java.util.Properties;
37 import java.util.ServiceLoader;
38 import java.util.logging.Level;
39 import java.util.logging.Logger;
40
41 /**
42 * Shared ServiceLoader/FactoryFinder Utils shared among SAAJ, JAXB and JAXWS
43 * - this class must be duplicated to all those projects, but it's
44 * basically generic code and we want to have it everywhere same.
45 *
46 * @author Miroslav.Kos@oracle.com
47 */
48 class ServiceLoaderUtil {
49
50 private static final String OSGI_SERVICE_LOADER_CLASS_NAME = "com.sun.org.glassfish.hk2.osgiresourcelocator.ServiceLoader";
51 private static final String OSGI_SERVICE_LOADER_METHOD_NAME = "lookupProviderClasses";
52
53 static <P, T extends Exception> P firstByServiceLoader(Class<P> spiClass, Logger logger, ExceptionHandler<T> handler) throws T {
54 // service discovery
55 try {
56 ServiceLoader<P> serviceLoader = ServiceLoader.load(spiClass);
57 for (P impl : serviceLoader) {
58 logger.fine("ServiceProvider loading Facility used; returning object [" + impl.getClass().getName() + "]");
59 return impl;
60 }
61 } catch (Throwable t) {
62 throw handler.createException(t, "Error while searching for service [" + spiClass.getName() + "]");
63 }
64 return null;
65 }
66
67 static boolean isOsgi(Logger logger) {
68 try {
69 Class.forName(OSGI_SERVICE_LOADER_CLASS_NAME);
70 return true;
71 } catch (ClassNotFoundException ignored) {
72 logger.log(Level.FINE, "OSGi classes not found, OSGi not available.", ignored);
73 }
74 return false;
75 }
76
77 static Object lookupUsingOSGiServiceLoader(String factoryId, Logger logger) {
78 try {
79 // Use reflection to avoid having any dependendcy on ServiceLoader class
80 Class serviceClass = Class.forName(factoryId);
81 Class target = Class.forName(OSGI_SERVICE_LOADER_CLASS_NAME);
82 Method m = target.getMethod(OSGI_SERVICE_LOADER_METHOD_NAME, Class.class);
83 Iterator iter = ((Iterable) m.invoke(null, serviceClass)).iterator();
84 if (iter.hasNext()) {
85 Object next = iter.next();
86 logger.fine("Found implementation using OSGi facility; returning object [" + next.getClass().getName() + "].");
87 return next;
88 } else {
89 return null;
90 }
91 } catch (IllegalAccessException | InvocationTargetException | ClassNotFoundException | NoSuchMethodException ignored) {
92 logger.log(Level.FINE, "Unable to find from OSGi: [" + factoryId + "]", ignored);
93 return null;
94 }
95 }
96
97 static String propertyFileLookup(final String configFullPath, final String factoryId) throws IOException {
98 File f = new File(configFullPath);
99 String factoryClassName = null;
100 if (f.exists()) {
101 Properties props = new Properties();
102 FileInputStream stream = null;
103 try {
104 stream = new FileInputStream(f);
105 props.load(stream);
106 factoryClassName = props.getProperty(factoryId);
107 } finally {
108 if (stream != null) {
109 try {
110 stream.close();
111 } catch (IOException ignored) {
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