[slf4j-dev] [GIT] SLF4J: Simple Logging Facade for Java branch master updated. v_1.7.0-5-ge96e329
Gitbot
git-noreply at pixie.qos.ch
Fri Sep 14 19:13:28 CEST 2012
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "SLF4J: Simple Logging Facade for Java".
The branch, master has been updated
via e96e3290507c8f8bf9f9c1f8811ca9e2f7ac4cd7 (commit)
from beb834f2cab2b4c2e5a4fb34410ca78284b6030c (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
http://git.qos.ch/gitweb/?p=slf4j.git;a=commit;h=e96e3290507c8f8bf9f9c1f8811ca9e2f7ac4cd7
http://github.com/ceki/slf4j/commit/e96e3290507c8f8bf9f9c1f8811ca9e2f7ac4cd7
commit e96e3290507c8f8bf9f9c1f8811ca9e2f7ac4cd7
Author: Ceki Gulcu <ceki at qos.ch>
Date: Fri Sep 14 19:12:47 2012 +0200
refactoring to improve readability
diff --git a/slf4j-simple/src/main/java/org/slf4j/impl/SimpleLogger.java b/slf4j-simple/src/main/java/org/slf4j/impl/SimpleLogger.java
index 05d7e75..0d61714 100644
--- a/slf4j-simple/src/main/java/org/slf4j/impl/SimpleLogger.java
+++ b/slf4j-simple/src/main/java/org/slf4j/impl/SimpleLogger.java
@@ -22,7 +22,6 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
-
package org.slf4j.impl;
import java.io.InputStream;
@@ -46,59 +45,54 @@ import org.slf4j.spi.LocationAwareLogger;
* The following system properties are supported to configure the behavior of this logger:</p>
* <ul>
* <li><code>org.slf4j.simplelogger.defaultlog</code> -
- * Default logging detail level for all instances of SimpleLogger.
- * Must be one of ("trace", "debug", "info", "warn", or "error").
- * If not specified, defaults to "info". </li>
+ * Default logging detail level for all instances of SimpleLogger.
+ * Must be one of ("trace", "debug", "info", "warn", or "error").
+ * If not specified, defaults to "info". </li>
* <li><code>org.slf4j.simplelogger.log.xxxxx</code> -
- * Logging detail level for a SimpleLogger instance named "xxxxx".
- * Must be one of ("trace", "debug", "info", "warn", or "error").
- * If not specified, the default logging detail level is used.</li>
+ * Logging detail level for a SimpleLogger instance named "xxxxx".
+ * Must be one of ("trace", "debug", "info", "warn", or "error").
+ * If not specified, the default logging detail level is used.</li>
* <li><code>org.slf4j.simplelogger.showdatetime</code> -
- * Set to <code>true</code> if you want the current date and time
- * to be included in output messages. Default is <code>false</code>,
- * and will output the number of milliseconds elapsed since startup.</li>
+ * Set to <code>true</code> if you want the current date and time
+ * to be included in output messages. Default is <code>true</code></li>
* <li><code>org.slf4j.simplelogger.dateTimeFormat</code> -
- * The date and time format to be used in the output messages.
- * The pattern describing the date and time format is the same that is
- * used in <code>java.text.SimpleDateFormat</code>. If the format is not
- * specified or is invalid, the default format is used.
- * The default format is <code>yyyy-MM-dd HH:mm:ss:SSS Z</code>.</li>
+ * The date and time format to be used in the output messages.
+ * The pattern describing the date and time format is the same that is
+ * used in <code>java.text.SimpleDateFormat</code>. If the format is not
+ * specified or is invalid, the number of milliseonds since start up will be output.
+ * </li>
* <li><code>org.slf4j.simplelogger.showthreadname</code> -
- * Set to <code>true</code> if you want to output the current thread name.
- * Defaults to <code>true</code>.</li>
+ * Set to <code>true</code> if you want to output the current thread name.
+ * Defaults to <code>true</code>.</li>
* <li><code>org.slf4j.simplelogger.showlogname</code> -
- * Set to <code>true</code> if you want the Logger instance name to be
- * included in output messages. Defaults to <code>true</code>.</li>
+ * Set to <code>true</code> if you want the Logger instance name to be
+ * included in output messages. Defaults to <code>true</code>.</li>
* <li><code>org.slf4j.simplelogger.showShortLogname</code> -
- * Set to <code>true</code> if you want the last component of the name to be
- * included in output messages. Defaults to <code>false</code>.</li>
+ * Set to <code>true</code> if you want the last component of the name to be
+ * included in output messages. Defaults to <code>false</code>.</li>
* </ul>
- *
* <p>In addition to looking for system properties with the names specified
* above, this implementation also checks for a class loader resource named
* <code>"simplelogger.properties"</code>, and includes any matching definitions
* from this resource (if it exists).</p>
- *
- *
* <p>With no configurationn, the default output includes the relative time in milliseconds,
* thread name, the level, logger name, and the message followed by the line
* separator for the host. In log4j terms it amounts to the "%r [%t]
* %level %logger - %m%n" pattern. </p>
- *
* <p>Sample output follows.</p>
-<pre>
-176 [main] INFO examples.Sort - Populating an array of 2 elements in reverse order.
-225 [main] INFO examples.SortAlgo - Entered the sort method.
-304 [main] INFO examples.SortAlgo - Dump of integer array:
-317 [main] INFO examples.SortAlgo - Element [0] = 0
-331 [main] INFO examples.SortAlgo - Element [1] = 1
-343 [main] INFO examples.Sort - The next log statement should be an error message.
-346 [main] ERROR examples.SortAlgo - Tried to dump an uninitialized array.
- at org.log4j.examples.SortAlgo.dump(SortAlgo.java:58)
- at org.log4j.examples.Sort.main(Sort.java:64)
-467 [main] INFO examples.Sort - Exiting main method.
-</pre>
- *
+ * <pre>
+ * 176 [main] INFO examples.Sort - Populating an array of 2 elements in reverse order.
+ * 225 [main] INFO examples.SortAlgo - Entered the sort method.
+ * 304 [main] INFO examples.SortAlgo - Dump of integer array:
+ * 317 [main] INFO examples.SortAlgo - Element [0] = 0
+ * 331 [main] INFO examples.SortAlgo - Element [1] = 1
+ * 343 [main] INFO examples.Sort - The next log statement should be an error message.
+ * 346 [main] ERROR examples.SortAlgo - Tried to dump an uninitialized array.
+ * at org.log4j.examples.SortAlgo.dump(SortAlgo.java:58)
+ * at org.log4j.examples.Sort.main(Sort.java:64)
+ * 467 [main] INFO examples.Sort - Exiting main method.
+ * </pre>
+ * <p/>
* <p>This implementation is heavily inspired by
* <a href="http://commons.apache.org/logging/">Apache Commons Logging</a>'s SimpleLog.
*
@@ -115,134 +109,165 @@ public class SimpleLogger extends MarkerIgnoringBase {
/**
* Mark the time when this class gets loaded into memory.
*/
- private static long startTime = System.currentTimeMillis();
+ private static long START_TIME = System.currentTimeMillis();
private static final String CONFIGURATION_FILE = "simplelogger.properties";
- /** All system properties used by <code>SimpleLogger</code> start with this */
+ /**
+ * All system properties used by <code>SimpleLogger</code> start with this
+ */
private static final String systemPrefix = "org.slf4j.simplelogger.";
- /** Properties loaded from simplelogger.properties */
+ /**
+ * Properties loaded from simplelogger.properties
+ */
private static final Properties simpleLoggerProps = new Properties();
- /** The default format to use when formating dates */
- private static final String DEFAULT_DATE_TIME_FORMAT =
- "yyyy-MM-dd HH:mm:ss:SSS Z";
+ /**
+ * Include the instance name in the log message?
+ */
+ private static boolean SHOW_LOG_NAME = true;
+ /**
+ * Include the short name ( last component ) of the logger in the log
+ * message. Defaults to true - otherwise we'll be lost in a flood of
+ * messages without knowing who sends them.
+ */
+ private static boolean SHOW_SHORT_NAME = false;
+ /**
+ * Include the current time in the log message
+ */
+ private static boolean SHOW_DATE_TIME = false;
- /** Include the instance name in the log message? */
- private static boolean showLogName = true;
- /** Include the short name ( last component ) of the logger in the log
- * message. Defaults to true - otherwise we'll be lost in a flood of
- * messages without knowing who sends them.
+ /**
+ * The date and time format to use in the log message
*/
- private static boolean showShortName = false;
- /** Include the current time in the log message */
- private static boolean showDateTime = false;
- /** The date and time format to use in the log message */
- private static String dateTimeFormat = DEFAULT_DATE_TIME_FORMAT;
+ private static String DATE_TIME_FORMAT_STR = null;
- /** Include the current thread name in the log message */
- private static boolean showThreadName = true;
+ /**
+ * Include the current thread name in the log message
+ */
+ private static boolean SHOW_THREAD_NAME = true;
/**
+ * The log file to write to. Default is null.
+ */
+ private static String logFile = null;
+ /**
* Used to format times.
- * <p>
+ * <p/>
* Any code that accesses this object should first obtain a lock on it,
* ie use synchronized(dateFormatter); this requirement is
* to fix an existing thread safety bug (SimpleDateFormat.format
* is not thread-safe).
*/
- private static DateFormat dateFormatter = null;
+ private static DateFormat DATE_FORMATTER = null;
- /** "Trace" level logging. */
- public static final int LOG_LEVEL_TRACE = LocationAwareLogger.TRACE_INT;
- /** "Debug" level logging. */
- public static final int LOG_LEVEL_DEBUG = LocationAwareLogger.DEBUG_INT;
- /** "Info" level logging. */
- public static final int LOG_LEVEL_INFO = LocationAwareLogger.INFO_INT;
- /** "Warn" level logging. */
- public static final int LOG_LEVEL_WARN = LocationAwareLogger.WARN_INT;
- /** "Error" level logging. */
- public static final int LOG_LEVEL_ERROR = LocationAwareLogger.ERROR_INT;
- /** "Fatal" level logging. */
-// public static final int LOG_LEVEL_FATAL = 6;
+ /**
+ * "Trace" level logging.
+ */
+ public static final int LOG_LEVEL_TRACE = LocationAwareLogger.TRACE_INT;
+ /**
+ * "Debug" level logging.
+ */
+ public static final int LOG_LEVEL_DEBUG = LocationAwareLogger.DEBUG_INT;
+ /**
+ * "Info" level logging.
+ */
+ public static final int LOG_LEVEL_INFO = LocationAwareLogger.INFO_INT;
+ /**
+ * "Warn" level logging.
+ */
+ public static final int LOG_LEVEL_WARN = LocationAwareLogger.WARN_INT;
+ /**
+ * "Error" level logging.
+ */
+ public static final int LOG_LEVEL_ERROR = LocationAwareLogger.ERROR_INT;
- /** Enable all logging levels */
- public static final int LOG_LEVEL_ALL = (LOG_LEVEL_TRACE - 10);
+ /**
+ * Enable all logging levels
+ */
+ //public static final int LOG_LEVEL_ALL = (LOG_LEVEL_TRACE - 10);
- /** Enable no logging levels */
- public static final int LOG_LEVEL_OFF = (LOG_LEVEL_ERROR + 10);
+ /**
+ * Enable no logging levels
+ */
+ //public static final int LOG_LEVEL_OFF = (LOG_LEVEL_ERROR + 10);
+ private static int defaultLogLevel = LOG_LEVEL_INFO;
private static String getStringProperty(String name) {
- String prop = null;
- try {
- prop = System.getProperty(name);
- } catch (SecurityException e) {
- ; // Ignore
- }
- return (prop == null) ? simpleLoggerProps.getProperty(name) : prop;
+ String prop = null;
+ try {
+ prop = System.getProperty(name);
+ } catch (SecurityException e) {
+ ; // Ignore
+ }
+ return (prop == null) ? simpleLoggerProps.getProperty(name) : prop;
}
private static String getStringProperty(String name, String defaultValue) {
- String prop = getStringProperty(name);
- return (prop == null) ? defaultValue : prop;
+ String prop = getStringProperty(name);
+ return (prop == null) ? defaultValue : prop;
}
private static boolean getBooleanProperty(String name, boolean defaultValue) {
- String prop = getStringProperty(name);
- return (prop == null) ? defaultValue : "true".equalsIgnoreCase(prop);
+ String prop = getStringProperty(name);
+ return (prop == null) ? defaultValue : "true".equalsIgnoreCase(prop);
}
+
// Initialize class attributes.
// Load properties file, if found.
// Override with system properties.
static {
- // Add props from the resource simplelogger.properties
- InputStream in = (InputStream)AccessController.doPrivileged(
- new PrivilegedAction() {
- public Object run() {
- ClassLoader threadCL = Thread.currentThread().getContextClassLoader();
- if (threadCL != null) {
- return threadCL.getResourceAsStream(CONFIGURATION_FILE);
- } else {
- return ClassLoader.getSystemResourceAsStream(CONFIGURATION_FILE);
- }
- }
- });
- if(null != in) {
- try {
- simpleLoggerProps.load(in);
- in.close();
- } catch(java.io.IOException e) {
- // ignored
- }
+ // Add props from the resource simplelogger.properties
+ InputStream in = (InputStream) AccessController.doPrivileged(
+ new PrivilegedAction() {
+ public Object run() {
+ ClassLoader threadCL = Thread.currentThread().getContextClassLoader();
+ if (threadCL != null) {
+ return threadCL.getResourceAsStream(CONFIGURATION_FILE);
+ } else {
+ return ClassLoader.getSystemResourceAsStream(CONFIGURATION_FILE);
+ }
+ }
+ });
+ if (null != in) {
+ try {
+ simpleLoggerProps.load(in);
+ in.close();
+ } catch (java.io.IOException e) {
+ // ignored
}
+ }
- showLogName = getBooleanProperty(systemPrefix + "showlogname", showLogName);
- showShortName = getBooleanProperty(systemPrefix + "showShortLogname", showShortName);
- showDateTime = getBooleanProperty(systemPrefix + "showdatetime", showDateTime);
- showThreadName = getBooleanProperty(systemPrefix + "showthreadname", showThreadName);
- dateTimeFormat = getStringProperty(systemPrefix + "dateTimeFormat", dateTimeFormat);
+ SHOW_LOG_NAME = getBooleanProperty(systemPrefix + "showlogname", SHOW_LOG_NAME);
+ SHOW_SHORT_NAME = getBooleanProperty(systemPrefix + "showShortLogname", SHOW_SHORT_NAME);
+ SHOW_DATE_TIME = getBooleanProperty(systemPrefix + "showdatetime", SHOW_DATE_TIME);
+ SHOW_THREAD_NAME = getBooleanProperty(systemPrefix + "showthreadname", SHOW_THREAD_NAME);
+ DATE_TIME_FORMAT_STR = getStringProperty(systemPrefix + "dateTimeFormat", DATE_TIME_FORMAT_STR);
+ logFile = getStringProperty(systemPrefix + "logFile", logFile);
+ String defaultLogLevelString = getStringProperty(systemPrefix + "defaultlog", null);
+ if (defaultLogLevelString != null)
+ defaultLogLevel = stringToLevel(defaultLogLevelString);
- if(showDateTime) {
- try {
- dateFormatter = new SimpleDateFormat(dateTimeFormat);
- } catch(IllegalArgumentException e) {
- Util.report("Bad date format in " + CONFIGURATION_FILE + "; reverting to default", e);
- // If the format pattern is invalid - use the default format
- dateTimeFormat = DEFAULT_DATE_TIME_FORMAT;
- dateFormatter = new SimpleDateFormat(dateTimeFormat);
- }
- }
+ try {
+ DATE_FORMATTER = new SimpleDateFormat(DATE_TIME_FORMAT_STR);
+ } catch (IllegalArgumentException e) {
+ Util.report("Bad date format in " + CONFIGURATION_FILE + "; will default to relative time ", e);
+ }
}
/** The name of this simple log instance */
//protected String logName = null;// == name
- /** The current log level */
+ /**
+ * The current log level
+ */
protected int currentLogLevel = LOG_LEVEL_INFO;
- /** The short name of this simple log instance */
+ /**
+ * The short name of this simple log instance
+ */
private transient String shortLogName = null;
/**
@@ -258,33 +283,33 @@ public class SimpleLogger extends MarkerIgnoringBase {
// Set log level from properties
String lvl = getStringProperty(systemPrefix + "log." + name);
int i = String.valueOf(name).lastIndexOf(".");
- while(null == lvl && i > -1) {
- name = name.substring(0,i);
- lvl = getStringProperty(systemPrefix + "log." + name);
- i = String.valueOf(name).lastIndexOf(".");
+ while (null == lvl && i > -1) {
+ name = name.substring(0, i);
+ lvl = getStringProperty(systemPrefix + "log." + name);
+ i = String.valueOf(name).lastIndexOf(".");
}
- if(null == lvl) {
- lvl = getStringProperty(systemPrefix + "defaultlog");
+ if (null == lvl) {
+ lvl = getStringProperty(systemPrefix + "defaultlog");
}
- if("all".equalsIgnoreCase(lvl)) {
- this.currentLogLevel = LOG_LEVEL_ALL;
- } else if("trace".equalsIgnoreCase(lvl)) {
- this.currentLogLevel = LOG_LEVEL_TRACE;
- } else if("debug".equalsIgnoreCase(lvl)) {
- this.currentLogLevel = LOG_LEVEL_DEBUG;
- } else if("info".equalsIgnoreCase(lvl)) {
- this.currentLogLevel = LOG_LEVEL_INFO;
- } else if("warn".equalsIgnoreCase(lvl)) {
- this.currentLogLevel = LOG_LEVEL_WARN;
- } else if("error".equalsIgnoreCase(lvl)) {
- this.currentLogLevel = LOG_LEVEL_ERROR;
-// } else if("fatal".equalsIgnoreCase(lvl)) {
-// setLevel(LOG_LEVEL_FATAL);
- } else if("off".equalsIgnoreCase(lvl)) {
- this.currentLogLevel = LOG_LEVEL_OFF;
+ this.currentLogLevel = stringToLevel(lvl);
+ }
+
+ private static int stringToLevel(String lvl) {
+ if ("trace".equalsIgnoreCase(lvl)) {
+ return LOG_LEVEL_TRACE;
+ } else if ("debug".equalsIgnoreCase(lvl)) {
+ return LOG_LEVEL_DEBUG;
+ } else if ("info".equalsIgnoreCase(lvl)) {
+ return LOG_LEVEL_INFO;
+ } else if ("warn".equalsIgnoreCase(lvl)) {
+ return LOG_LEVEL_WARN;
+ } else if ("error".equalsIgnoreCase(lvl)) {
+ return LOG_LEVEL_ERROR;
}
+ // assume INFO by default
+ return LOG_LEVEL_INFO;
}
@@ -292,60 +317,61 @@ public class SimpleLogger extends MarkerIgnoringBase {
* This is our internal implementation for logging regular (non-parameterized)
* log messages.
*
- * @param level One of the LOG_LEVEL_XXX constants defining the log level
+ * @param level One of the LOG_LEVEL_XXX constants defining the log level
* @param message The message itself
- * @param t The exception whose stack trace should be logged
+ * @param t The exception whose stack trace should be logged
*/
private void log(int level, String message, Throwable t) {
- if (! isLevelEnabled(level)) {
+ if (!isLevelEnabled(level)) {
return;
}
StringBuffer buf = new StringBuffer(32);
// Append date-time if so configured
- if(showDateTime) {
- Date now = new Date();
- String dateText;
- synchronized(dateFormatter) {
- dateText = dateFormatter.format(now);
+ if (SHOW_DATE_TIME) {
+ if (DATE_FORMATTER != null) {
+ buf.append(getFormattedDate());
+ buf.append(' ');
+ } else {
+ buf.append(System.currentTimeMillis() - START_TIME);
+ buf.append(' ');
}
- buf.append(dateText);
- buf.append(' ');
- } else {
- buf.append(System.currentTimeMillis() - startTime);
- buf.append(' ');
}
// Append current thread name if so configured
- if (showThreadName) {
+ if (SHOW_THREAD_NAME) {
buf.append('[');
buf.append(Thread.currentThread().getName());
buf.append("] ");
- }
+ }
// Append a readable representation of the log level
- switch(level) {
- case LOG_LEVEL_TRACE: buf.append("TRACE"); break;
- case LOG_LEVEL_DEBUG: buf.append("DEBUG"); break;
- case LOG_LEVEL_INFO: buf.append("INFO"); break;
- case LOG_LEVEL_WARN: buf.append("WARN"); break;
- case LOG_LEVEL_ERROR: buf.append("ERROR"); break;
-// case LOG_LEVEL_FATAL: buf.append("[FATAL] "); break;
+ switch (level) {
+ case LOG_LEVEL_TRACE:
+ buf.append("TRACE");
+ break;
+ case LOG_LEVEL_DEBUG:
+ buf.append("DEBUG");
+ break;
+ case LOG_LEVEL_INFO:
+ buf.append("INFO");
+ break;
+ case LOG_LEVEL_WARN:
+ buf.append("WARN");
+ break;
+ case LOG_LEVEL_ERROR:
+ buf.append("ERROR");
+ break;
}
buf.append(' ');
// Append the name of the log instance if so configured
- if(showShortName) {
- if(shortLogName==null) {
- // Cut all but the last component of the name for both styles
- shortLogName = name.substring(name.lastIndexOf(".") + 1);
- shortLogName =
- shortLogName.substring(shortLogName.lastIndexOf("/") + 1);
- }
+ if (SHOW_SHORT_NAME) {
+ if (shortLogName == null) shortLogName = computeShortName();
buf.append(String.valueOf(shortLogName)).append(" - ");
- } else if(showLogName) {
- buf.append(String.valueOf(name)).append(" - ");
+ } else if (SHOW_LOG_NAME) {
+ buf.append(String.valueOf(name)).append(" - ");
}
// Append the message
@@ -359,6 +385,19 @@ public class SimpleLogger extends MarkerIgnoringBase {
System.err.flush();
}
+ private String getFormattedDate() {
+ Date now = new Date();
+ String dateText;
+ synchronized (DATE_FORMATTER) {
+ dateText = DATE_FORMATTER.format(now);
+ }
+ return dateText;
+ }
+
+ private String computeShortName() {
+ return name.substring(name.lastIndexOf(".") + 1);
+ }
+
/**
* For formatted messages, first substitute arguments and then log.
*
@@ -368,8 +407,8 @@ public class SimpleLogger extends MarkerIgnoringBase {
* @param arg2
*/
private void formatAndLog(int level, String format, Object arg1,
- Object arg2) {
- if (! isLevelEnabled(level)) {
+ Object arg2) {
+ if (!isLevelEnabled(level)) {
return;
}
FormattingTuple tp = MessageFormatter.format(format, arg1, arg2);
@@ -384,7 +423,7 @@ public class SimpleLogger extends MarkerIgnoringBase {
* @param arguments a list of 3 ore more arguments
*/
private void formatAndLog(int level, String format, Object... arguments) {
- if (! isLevelEnabled(level)) {
+ if (!isLevelEnabled(level)) {
return;
}
FormattingTuple tp = MessageFormatter.arrayFormat(format, arguments);
@@ -397,12 +436,11 @@ public class SimpleLogger extends MarkerIgnoringBase {
* @param logLevel is this level enabled?
*/
protected boolean isLevelEnabled(int logLevel) {
- // log level are numerically ordered so can use simple numeric
- // comparison
- return (logLevel >= currentLogLevel);
+ // log level are numerically ordered so can use simple numeric
+ // comparison
+ return (logLevel >= currentLogLevel);
}
-
/**
* Are {@code trace} messages currently enabled?
*/
-----------------------------------------------------------------------
Summary of changes:
.../src/main/java/org/slf4j/impl/SimpleLogger.java | 400 +++++++++++---------
1 files changed, 219 insertions(+), 181 deletions(-)
hooks/post-receive
--
SLF4J: Simple Logging Facade for Java
More information about the slf4j-dev
mailing list