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.lang.invoke;
26
27 import sun.util.logging.PlatformLogger;
28
29 import java.io.FilePermission;
30 import java.nio.file.Files;
31 import java.nio.file.InvalidPathException;
32 import java.nio.file.Path;
33 import java.nio.file.Paths;
34 import java.security.AccessController;
35 import java.security.PrivilegedAction;
36 import java.util.Objects;
37 import java.util.concurrent.atomic.AtomicBoolean;
38
39 /**
40 * Helper class used by InnerClassLambdaMetafactory to log generated classes
41 *
42 * @implNote
43 * <p> Because this class is called by LambdaMetafactory, make use
44 * of lambda lead to recursive calls cause stack overflow.
45 */
46 final class ProxyClassesDumper {
47 private static final char[] HEX = {
48 '0', '1', '2', '3', '4', '5', '6', '7',
49 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
50 };
51 private static final char[] BAD_CHARS = {
52 '\\', ':', '*', '?', '"', '<', '>', '|'
53 };
54 private static final String[] REPLACEMENT = {
55 "%5C", "%3A", "%2A", "%3F", "%22", "%3C", "%3E", "%7C"
56 };
57
58 private final Path dumpDir;
59
60 public static ProxyClassesDumper getInstance(String path) {
61 if (null == path) {
62 return null;
63 }
64 try {
65 path = path.trim();
66 final Path dir = Paths.get(path.length() == 0 ? "." : path);
67 AccessController.doPrivileged(new PrivilegedAction<>() {
68 @Override
69 public Void run() {
70 validateDumpDir(dir);
71 return null;
72 }
73 }, null, new FilePermission("<<ALL FILES>>", "read, write"));
74 return new ProxyClassesDumper(dir);
75 } catch (InvalidPathException ex) {
76 PlatformLogger.getLogger(ProxyClassesDumper.class.getName())
77 .warning("Path " + path + " is not valid - dumping disabled", ex);
78 } catch (IllegalArgumentException iae) {
79 PlatformLogger.getLogger(ProxyClassesDumper.class.getName())
80 .warning(iae.getMessage() + " - dumping disabled");
81 }
82 return null;
83 }
84
85 private ProxyClassesDumper(Path path) {
86 dumpDir = Objects.requireNonNull(path);
|
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.lang.invoke;
26
27 import sun.util.logging.PlatformLogger;
28
29 import java.io.FilePermission;
30 import java.nio.file.Files;
31 import java.nio.file.InvalidPathException;
32 import java.nio.file.Path;
33 import java.security.AccessController;
34 import java.security.PrivilegedAction;
35 import java.util.Objects;
36 import java.util.concurrent.atomic.AtomicBoolean;
37
38 /**
39 * Helper class used by InnerClassLambdaMetafactory to log generated classes
40 *
41 * @implNote
42 * <p> Because this class is called by LambdaMetafactory, make use
43 * of lambda lead to recursive calls cause stack overflow.
44 */
45 final class ProxyClassesDumper {
46 private static final char[] HEX = {
47 '0', '1', '2', '3', '4', '5', '6', '7',
48 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
49 };
50 private static final char[] BAD_CHARS = {
51 '\\', ':', '*', '?', '"', '<', '>', '|'
52 };
53 private static final String[] REPLACEMENT = {
54 "%5C", "%3A", "%2A", "%3F", "%22", "%3C", "%3E", "%7C"
55 };
56
57 private final Path dumpDir;
58
59 public static ProxyClassesDumper getInstance(String path) {
60 if (null == path) {
61 return null;
62 }
63 try {
64 path = path.trim();
65 final Path dir = Path.get(path.length() == 0 ? "." : path);
66 AccessController.doPrivileged(new PrivilegedAction<>() {
67 @Override
68 public Void run() {
69 validateDumpDir(dir);
70 return null;
71 }
72 }, null, new FilePermission("<<ALL FILES>>", "read, write"));
73 return new ProxyClassesDumper(dir);
74 } catch (InvalidPathException ex) {
75 PlatformLogger.getLogger(ProxyClassesDumper.class.getName())
76 .warning("Path " + path + " is not valid - dumping disabled", ex);
77 } catch (IllegalArgumentException iae) {
78 PlatformLogger.getLogger(ProxyClassesDumper.class.getName())
79 .warning(iae.getMessage() + " - dumping disabled");
80 }
81 return null;
82 }
83
84 private ProxyClassesDumper(Path path) {
85 dumpDir = Objects.requireNonNull(path);
|