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 import java.security.Security;
34
35 public final class SocketExceptions {
36 private SocketExceptions() {}
37
38 /**
39 * Security or system property which specifies categories of
40 * (potentially sensitive) information that may be included
41 * in exception text. This class only defines one category:
42 * "hostInfo" which represents the hostname and port number
43 * of the remote peer relating to a socket exception.
44 * The property value is a comma separated list of
45 * case insignificant category names.
46 */
47 private static final String enhancedTextPropname = "jdk.net.includeInExceptions";
48
49 private static final boolean enhancedExceptionText = initTextProp();
50
51 private static boolean initTextProp() {
52 return AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
53 public Boolean run() {
54 String val = System.getProperty(enhancedTextPropname);
55 if (val == null) {
56 val = Security.getProperty(enhancedTextPropname);
57 if (val == null)
58 return false;
59 }
60 String[] tokens = val.split(",");
61 for (String token : tokens) {
62 if (token.equalsIgnoreCase("hostinfo"))
63 return true;
64 }
65 return false;
66 }
67 });
68 }
69
70
71 /**
72 * Utility which takes an exception and returns either the same exception
73 * or a new exception of the same type with the same stack trace
74 * and detail message enhanced with addressing information from the
75 * given InetSocketAddress.
76 *
77 * If the system/security property "jdk.net.enhanceExceptionText" is not
78 * set or is false, then the original exception is returned.
79 *
80 * Only specific IOException subtypes are supported.
81 */
82 public static IOException of(IOException e, InetSocketAddress address) {
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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 import java.security.Security;
34
35 public final class SocketExceptions {
36 private SocketExceptions() {}
37
38 /**
39 * Security or system property which specifies categories of
40 * (potentially sensitive) information that may be included
41 * in exception text. This class only defines one category:
42 * "hostInfo" which represents the hostname and port number
43 * of the remote peer relating to a socket exception.
44 * The property value is a comma separated list of
45 * case insignificant category names.
46 */
47 private static final String enhancedTextPropname = "jdk.includeInExceptions";
48
49 private static final boolean enhancedExceptionText = initTextProp();
50
51 private static boolean initTextProp() {
52 return AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
53 public Boolean run() {
54 String val = System.getProperty(enhancedTextPropname);
55 if (val == null) {
56 val = Security.getProperty(enhancedTextPropname);
57 if (val == null)
58 return false;
59 }
60 String[] tokens = val.split(",");
61 for (String token : tokens) {
62 if (token.trim().equalsIgnoreCase("hostinfo"))
63 return true;
64 }
65 return false;
66 }
67 });
68 }
69
70
71 /**
72 * Utility which takes an exception and returns either the same exception
73 * or a new exception of the same type with the same stack trace
74 * and detail message enhanced with addressing information from the
75 * given InetSocketAddress.
76 *
77 * If the system/security property "jdk.net.enhanceExceptionText" is not
78 * set or is false, then the original exception is returned.
79 *
80 * Only specific IOException subtypes are supported.
81 */
82 public static IOException of(IOException e, InetSocketAddress address) {
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