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
26
27 package java.util.logging;
28
29 import java.io.*;
30 import java.time.LocalDateTime;
31 import java.time.ZoneId;
32 import java.time.ZonedDateTime;
33 import sun.util.logging.LoggingSupport;
34
35 /**
36 * Print a brief summary of the {@code LogRecord} in a human readable
37 * format. The summary will typically be 1 or 2 lines.
38 *
39 * <p>
40 * <a name="formatting">
41 * <b>Configuration:</b></a>
42 * The {@code SimpleFormatter} is initialized with the
43 * <a href="../Formatter.html#syntax">format string</a>
44 * specified in the {@code java.util.logging.SimpleFormatter.format}
45 * property to {@linkplain #format format} the log messages.
46 * This property can be defined
47 * in the {@linkplain LogManager#getProperty logging properties}
48 * configuration file
49 * or as a system property. If this property is set in both
50 * the logging properties and system properties,
51 * the format string specified in the system property will be used.
52 * If this property is not defined or the given format string
53 * is {@linkplain java.util.IllegalFormatException illegal},
54 * the default format is implementation-specific.
55 *
56 * @since 1.4
57 * @see java.util.Formatter
58 */
59
60 public class SimpleFormatter extends Formatter {
61
62 // format string for printing the log record
63 private final String format = LoggingSupport.getSimpleFormat();
64 private final ZoneId zoneId = ZoneId.systemDefault();
65
66 /**
67 * Format the given LogRecord.
68 * <p>
69 * The formatting can be customized by specifying the
70 * <a href="../Formatter.html#syntax">format string</a>
71 * in the <a href="#formatting">
72 * {@code java.util.logging.SimpleFormatter.format}</a> property.
73 * The given {@code LogRecord} will be formatted as if by calling:
74 * <pre>
75 * {@link String#format String.format}(format, date, source, logger, level, message, thrown);
76 * </pre>
77 * where the arguments are:<br>
78 * <ol>
79 * <li>{@code format} - the {@link java.util.Formatter
80 * java.util.Formatter} format string specified in the
81 * {@code java.util.logging.SimpleFormatter.format} property
82 * or the default format.</li>
83 * <li>{@code date} - a {@link ZonedDateTime} object representing
84 * {@linkplain LogRecord#getInstant() event time} of the log record
135 * <p>Since JDK 1.9, {@code java.util.logging} uses {@link
136 * java.time.Clock#systemUTC() java.time} to create more precise time
137 * stamps.
138 * The format above can be used to add a {@code .%1$tN} to the
139 * date/time formatting so that nanoseconds will also be printed:
140 * <pre>
141 * Feb 06, 2015 5:33:10.279216000 PM example.Main main
142 * INFO: This is a test
143 * </pre></li>
144 * </ul>
145 * <p>This method can also be overridden in a subclass.
146 * It is recommended to use the {@link Formatter#formatMessage}
147 * convenience method to localize and format the message field.
148 *
149 * @param record the log record to be formatted.
150 * @return a formatted log record
151 */
152 @Override
153 public synchronized String format(LogRecord record) {
154 ZonedDateTime zdt = ZonedDateTime.ofInstant(
155 record.getInstant(), zoneId);
156 String source;
157 if (record.getSourceClassName() != null) {
158 source = record.getSourceClassName();
159 if (record.getSourceMethodName() != null) {
160 source += " " + record.getSourceMethodName();
161 }
162 } else {
163 source = record.getLoggerName();
164 }
165 String message = formatMessage(record);
166 String throwable = "";
167 if (record.getThrown() != null) {
168 StringWriter sw = new StringWriter();
169 PrintWriter pw = new PrintWriter(sw);
170 pw.println();
171 record.getThrown().printStackTrace(pw);
172 pw.close();
173 throwable = sw.toString();
174 }
175 return String.format(format,
|
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
26
27 package java.util.logging;
28
29 import java.io.*;
30 import java.time.ZoneId;
31 import java.time.ZonedDateTime;
32 import sun.util.logger.SimpleConsoleLogger;
33
34 /**
35 * Print a brief summary of the {@code LogRecord} in a human readable
36 * format. The summary will typically be 1 or 2 lines.
37 *
38 * <p>
39 * <a name="formatting">
40 * <b>Configuration:</b></a>
41 * The {@code SimpleFormatter} is initialized with the
42 * <a href="../Formatter.html#syntax">format string</a>
43 * specified in the {@code java.util.logging.SimpleFormatter.format}
44 * property to {@linkplain #format format} the log messages.
45 * This property can be defined
46 * in the {@linkplain LogManager#getProperty logging properties}
47 * configuration file
48 * or as a system property. If this property is set in both
49 * the logging properties and system properties,
50 * the format string specified in the system property will be used.
51 * If this property is not defined or the given format string
52 * is {@linkplain java.util.IllegalFormatException illegal},
53 * the default format is implementation-specific.
54 *
55 * @since 1.4
56 * @see java.util.Formatter
57 */
58
59 public class SimpleFormatter extends Formatter {
60
61 // format string for printing the log record
62 static String getLoggingProperty(String name) {
63 return LogManager.getLogManager().getProperty(name);
64 }
65
66 private final String format =
67 SimpleConsoleLogger.getSimpleFormat(SimpleFormatter::getLoggingProperty);
68
69 /**
70 * Format the given LogRecord.
71 * <p>
72 * The formatting can be customized by specifying the
73 * <a href="../Formatter.html#syntax">format string</a>
74 * in the <a href="#formatting">
75 * {@code java.util.logging.SimpleFormatter.format}</a> property.
76 * The given {@code LogRecord} will be formatted as if by calling:
77 * <pre>
78 * {@link String#format String.format}(format, date, source, logger, level, message, thrown);
79 * </pre>
80 * where the arguments are:<br>
81 * <ol>
82 * <li>{@code format} - the {@link java.util.Formatter
83 * java.util.Formatter} format string specified in the
84 * {@code java.util.logging.SimpleFormatter.format} property
85 * or the default format.</li>
86 * <li>{@code date} - a {@link ZonedDateTime} object representing
87 * {@linkplain LogRecord#getInstant() event time} of the log record
138 * <p>Since JDK 1.9, {@code java.util.logging} uses {@link
139 * java.time.Clock#systemUTC() java.time} to create more precise time
140 * stamps.
141 * The format above can be used to add a {@code .%1$tN} to the
142 * date/time formatting so that nanoseconds will also be printed:
143 * <pre>
144 * Feb 06, 2015 5:33:10.279216000 PM example.Main main
145 * INFO: This is a test
146 * </pre></li>
147 * </ul>
148 * <p>This method can also be overridden in a subclass.
149 * It is recommended to use the {@link Formatter#formatMessage}
150 * convenience method to localize and format the message field.
151 *
152 * @param record the log record to be formatted.
153 * @return a formatted log record
154 */
155 @Override
156 public synchronized String format(LogRecord record) {
157 ZonedDateTime zdt = ZonedDateTime.ofInstant(
158 record.getInstant(), ZoneId.systemDefault());
159 String source;
160 if (record.getSourceClassName() != null) {
161 source = record.getSourceClassName();
162 if (record.getSourceMethodName() != null) {
163 source += " " + record.getSourceMethodName();
164 }
165 } else {
166 source = record.getLoggerName();
167 }
168 String message = formatMessage(record);
169 String throwable = "";
170 if (record.getThrown() != null) {
171 StringWriter sw = new StringWriter();
172 PrintWriter pw = new PrintWriter(sw);
173 pw.println();
174 record.getThrown().printStackTrace(pw);
175 pw.close();
176 throwable = sw.toString();
177 }
178 return String.format(format,
|