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 java.util.logging;
27
28 import java.util.Enumeration;
29 import java.util.List;
30 import java.util.ArrayList;
31
32 /**
33 * Logging is the implementation class of LoggingMXBean.
34 *
35 * The <tt>LoggingMXBean</tt> interface provides a standard
36 * method for management access to the individual
37 * java.util.Logger objects available at runtime.
38 *
39 * @author Ron Mann
40 * @author Mandy Chung
41 * @since 1.5
42 *
43 * @see javax.management
44 * @see java.util.Logger
45 * @see java.util.LogManager
46 */
47 class Logging implements LoggingMXBean {
48
49 private static LogManager logManager = LogManager.getLogManager();
50
51 /** Constructor of Logging which is the implementation class
52 * of LoggingMXBean.
53 */
54 Logging() {
55 }
56
57 public List<String> getLoggerNames() {
58 Enumeration loggers = logManager.getLoggerNames();
59 ArrayList<String> array = new ArrayList<>();
60
61 for (; loggers.hasMoreElements();) {
62 array.add((String) loggers.nextElement());
63 }
64 return array;
65 }
66
67 private static String EMPTY_STRING = "";
68 public String getLoggerLevel(String loggerName) {
69 Logger l = logManager.getLogger(loggerName);
70 if (l == null) {
71 return null;
72 }
73
74 Level level = l.getLevel();
75 if (level == null) {
76 return EMPTY_STRING;
77 } else {
78 return level.getName();
79 }
80 }
81
82 public void setLoggerLevel(String loggerName, String levelName) {
83 if (loggerName == null) {
84 throw new NullPointerException("loggerName is null");
85 }
86
87 Logger logger = logManager.getLogger(loggerName);
88
89 if (logger == null) {
90 throw new IllegalArgumentException("Logger " + loggerName +
91 "does not exist");
92 }
93
94 Level level = null;
95 if (levelName != null) {
96 // parse will throw IAE if logLevel is invalid
97 level = Level.parse(levelName);
98 }
99
100 logger.setLevel(level);
101 }
102
103 public String getParentLoggerName( String loggerName ) {
104 Logger l = logManager.getLogger( loggerName );
105 if (l == null) {
106 return null;
107 }
108
109 Logger p = l.getParent();
110 if (p == null) {
111 // root logger
112 return EMPTY_STRING;
113 } else {
114 return p.getName();
115 }
116 }
117 }
|
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 java.util.logging;
27
28 import java.util.Enumeration;
29 import java.util.List;
30 import java.util.ArrayList;
31
32 /**
33 * Logging is the implementation class of LoggingMXBean.
34 *
35 * The <tt>LoggingMXBean</tt> interface provides a standard
36 * method for management access to the individual
37 * {@code Logger} objects available at runtime.
38 *
39 * @author Ron Mann
40 * @author Mandy Chung
41 * @since 1.5
42 *
43 * @see javax.management
44 * @see Logger
45 * @see LogManager
46 */
47 class Logging implements LoggingMXBean {
48
49 private static LogManager logManager = LogManager.getLogManager();
50
51 /** Constructor of Logging which is the implementation class
52 * of LoggingMXBean.
53 */
54 Logging() {
55 }
56
57 public List<String> getLoggerNames() {
58 Enumeration loggers = logManager.getLoggerNames();
59 ArrayList<String> array = new ArrayList<>();
60
61 for (; loggers.hasMoreElements();) {
62 array.add((String) loggers.nextElement());
63 }
64 return array;
65 }
66
67 private static String EMPTY_STRING = "";
68 public String getLoggerLevel(String loggerName) {
69 Logger l = logManager.getLogger(loggerName);
70 if (l == null) {
71 return null;
72 }
73
74 Level level = l.getLevel();
75 if (level == null) {
76 return EMPTY_STRING;
77 } else {
78 return level.getLevelName();
79 }
80 }
81
82 public void setLoggerLevel(String loggerName, String levelName) {
83 if (loggerName == null) {
84 throw new NullPointerException("loggerName is null");
85 }
86
87 Logger logger = logManager.getLogger(loggerName);
88 if (logger == null) {
89 throw new IllegalArgumentException("Logger " + loggerName +
90 "does not exist");
91 }
92
93 Level level = null;
94 if (levelName != null) {
95 // parse will throw IAE if logLevel is invalid
96 level = Level.findLevel(levelName);
97 if (level == null) {
98 throw new IllegalArgumentException("Unknown level \"" + levelName + "\"");
99 }
100 }
101
102 logger.setLevel(level);
103 }
104
105 public String getParentLoggerName( String loggerName ) {
106 Logger l = logManager.getLogger( loggerName );
107 if (l == null) {
108 return null;
109 }
110
111 Logger p = l.getParent();
112 if (p == null) {
113 // root logger
114 return EMPTY_STRING;
115 } else {
116 return p.getName();
117 }
118 }
119 }
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