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 sun.net.util;
27
28 import java.io.IOException;
29 import java.lang.reflect.Constructor;
30 import java.net.InetSocketAddress;
31 import java.security.AccessController;
32 import java.security.PrivilegedAction;
33
34 import sun.security.util.SecurityProperties;
35
36 public final class SocketExceptions {
37 private SocketExceptions() {}
38
39 private static final boolean enhancedExceptionText =
40 SecurityProperties.includedInExceptions("hostInfo");
41
42 /**
43 * Utility which takes an exception and returns either the same exception
44 * or a new exception of the same type with the same stack trace
45 * and detail message enhanced with addressing information from the
46 * given InetSocketAddress.
47 *
48 * If the system/security property "jdk.includeInExceptions" is not
49 * set or does not contain the category hostInfo,
50 * then the original exception is returned.
51 *
52 * Only specific IOException subtypes are supported.
53 */
54 public static IOException of(IOException e, InetSocketAddress address) {
55 if (!enhancedExceptionText || address == null)
56 return e;
57 int port = address.getPort();
58 String host = address.getHostString();
59 StringBuilder sb = new StringBuilder();
60 sb.append(e.getMessage());
61 sb.append(": ");
62 sb.append(host);
63 sb.append(':');
64 sb.append(Integer.toString(port));
65 String enhancedMsg = sb.toString();
66 return create(e, enhancedMsg);
67 }
68
69 // return a new instance of the same type with the given detail
70 // msg, or if the type doesn't support detail msgs, return given
71 // instance.
72
73 private static IOException create(IOException e, String msg) {
74 return AccessController.doPrivileged(new PrivilegedAction<IOException>() {
75 public IOException run() {
76 try {
77 Class<?> clazz = e.getClass();
78 Constructor<?> ctor = clazz.getConstructor(String.class);
79 IOException e1 = (IOException)(ctor.newInstance(msg));
80 e1.setStackTrace(e.getStackTrace());
81 return e1;
82 } catch (Exception e0) {
83 // Some eg AsynchronousCloseException have no detail msg
84 return e;
|
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 sun.net.util;
27
28 import java.io.IOException;
29 import java.lang.reflect.Constructor;
30 import java.net.InetSocketAddress;
31 import java.net.SocketAddress;
32 import java.security.AccessController;
33 import java.security.PrivilegedAction;
34
35 import sun.security.util.SecurityProperties;
36
37 public final class SocketExceptions {
38 private SocketExceptions() {}
39
40 private static final boolean enhancedExceptionText =
41 SecurityProperties.includedInExceptions("hostInfo");
42
43 /**
44 * Utility which takes an exception and returns either the same exception
45 * or a new exception of the same type with the same stack trace
46 * and detail message enhanced with addressing information from the
47 * given InetSocketAddress.
48 *
49 * If the system/security property "jdk.includeInExceptions" is not
50 * set or does not contain the category hostInfo,
51 * then the original exception is returned.
52 *
53 * Only specific IOException subtypes are supported.
54 */
55 public static IOException of(IOException e, SocketAddress address) {
56 if (!enhancedExceptionText || address == null)
57 return e;
58 StringBuilder sb = new StringBuilder();
59 sb.append(e.getMessage());
60 sb.append(": ");
61 if (address instanceof InetSocketAddress) {
62 int port = ((InetSocketAddress) address).getPort();
63 String host = ((InetSocketAddress) address).getHostString();
64 sb.append(host);
65 sb.append(':');
66 sb.append(Integer.toString(port));
67 } else {
68 sb.append(address);
69 }
70 String enhancedMsg = sb.toString();
71 return create(e, enhancedMsg);
72 }
73
74 // return a new instance of the same type with the given detail
75 // msg, or if the type doesn't support detail msgs, return given
76 // instance.
77
78 private static IOException create(IOException e, String msg) {
79 return AccessController.doPrivileged(new PrivilegedAction<IOException>() {
80 public IOException run() {
81 try {
82 Class<?> clazz = e.getClass();
83 Constructor<?> ctor = clazz.getConstructor(String.class);
84 IOException e1 = (IOException)(ctor.newInstance(msg));
85 e1.setStackTrace(e.getStackTrace());
86 return e1;
87 } catch (Exception e0) {
88 // Some eg AsynchronousCloseException have no detail msg
89 return e;
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