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
23 * questions.
24 */
25 package java.net;
26
27 import java.security.AccessController;
28
29 /**
30 * This class defines a factory for creating DatagramSocketImpls. It defaults
31 * to creating plain DatagramSocketImpls, but may create other DatagramSocketImpls
32 * by setting the impl.prefix system property.
33 *
34 * @author Chris Hegarty
35 */
36
37 class DefaultDatagramSocketImplFactory {
38 static Class<?> prefixImplClass = null;
39
40 static {
41 String prefix = null;
42 try {
43 prefix = AccessController.doPrivileged(
44 new sun.security.action.GetPropertyAction("impl.prefix", null));
45 if (prefix != null)
46 prefixImplClass = Class.forName("java.net."+prefix+"DatagramSocketImpl");
47 } catch (Exception e) {
48 System.err.println("Can't find class: java.net." +
49 prefix +
50 "DatagramSocketImpl: check impl.prefix property");
51 //prefixImplClass = null;
52 }
53 }
54
55 /**
56 * Creates a new <code>DatagramSocketImpl</code> instance.
57 *
58 * @param isMulticast true if this impl if for a MutlicastSocket
59 * @return a new instance of a <code>DatagramSocketImpl</code>.
60 */
61 static DatagramSocketImpl createDatagramSocketImpl(boolean isMulticast /*unused on unix*/)
62 throws SocketException {
63 if (prefixImplClass != null) {
64 try {
|
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
23 * questions.
24 */
25 package java.net;
26
27 import sun.security.action.GetPropertyAction;
28
29 /**
30 * This class defines a factory for creating DatagramSocketImpls. It defaults
31 * to creating plain DatagramSocketImpls, but may create other DatagramSocketImpls
32 * by setting the impl.prefix system property.
33 *
34 * @author Chris Hegarty
35 */
36
37 class DefaultDatagramSocketImplFactory {
38 static Class<?> prefixImplClass = null;
39
40 static {
41 String prefix = null;
42 try {
43 prefix = GetPropertyAction.getProperty("impl.prefix", null);
44 if (prefix != null)
45 prefixImplClass = Class.forName("java.net."+prefix+"DatagramSocketImpl");
46 } catch (Exception e) {
47 System.err.println("Can't find class: java.net." +
48 prefix +
49 "DatagramSocketImpl: check impl.prefix property");
50 //prefixImplClass = null;
51 }
52 }
53
54 /**
55 * Creates a new <code>DatagramSocketImpl</code> instance.
56 *
57 * @param isMulticast true if this impl if for a MutlicastSocket
58 * @return a new instance of a <code>DatagramSocketImpl</code>.
59 */
60 static DatagramSocketImpl createDatagramSocketImpl(boolean isMulticast /*unused on unix*/)
61 throws SocketException {
62 if (prefixImplClass != null) {
63 try {
|