Loggerpublic class Logger extends Object | A Logger object is used to log messages for a specific
system or application component. Loggers are normally named,
using a hierarchical dot-separated namespace. Logger names
can be arbitrary strings, but they should normally be based on
the package name or class name of the logged component, such
as java.net or javax.swing. In addition it is possible to create
"anonymous" Loggers that are not stored in the Logger namespace.
Logger objects may be obtained by calls on one of the getLogger
factory methods. These will either create a new Logger or
return a suitable existing Logger.
Logging messages will be forwarded to registered Handler
objects, which can forward the messages to a variety of
destinations, including consoles, files, OS logs, etc.
Each Logger keeps track of a "parent" Logger, which is its
nearest existing ancestor in the Logger namespace.
Each Logger has a "Level" associated with it. This reflects
a minimum Level that this logger cares about. If a Logger's
level is set to null, then its effective level is inherited
from its parent, which may in turn obtain it recursively from its
parent, and so on up the tree.
The log level can be configured based on the properties from the
logging configuration file, as described in the description
of the LogManager class. However it may also be dynamically changed
by calls on the Logger.setLevel method. If a logger's level is
changed the change may also affect child loggers, since any child
logger that has null as its level will inherit its
effective level from its parent.
On each logging call the Logger initially performs a cheap
check of the request level (e.g. SEVERE or FINE) against the
effective log level of the logger. If the request level is
lower than the log level, the logging call returns immediately.
After passing this initial (cheap) test, the Logger will allocate
a LogRecord to describe the logging message. It will then call a
Filter (if present) to do a more detailed check on whether the
record should be published. If that passes it will then publish
the LogRecord to its output Handlers. By default, loggers also
publish to their parent's Handlers, recursively up the tree.
Each Logger may have a ResourceBundle name associated with it.
The named bundle will be used for localizing logging messages.
If a Logger does not have its own ResourceBundle name, then
it will inherit the ResourceBundle name from its parent,
recursively up the tree.
Most of the logger output methods take a "msg" argument. This
msg argument may be either a raw value or a localization key.
During formatting, if the logger has (or inherits) a localization
ResourceBundle and if the ResourceBundle has a mapping for the msg
string, then the msg string is replaced by the localized value.
Otherwise the original msg string is used. Typically, formatters use
java.text.MessageFormat style formatting to format parameters, so
for example a format string "{0} {1}" would format two parameters
as strings.
When mapping ResourceBundle names to ResourceBundles, the Logger
will first try to use the Thread's ContextClassLoader. If that
is null it will try the SystemClassLoader instead. As a temporary
transition feature in the initial implementation, if the Logger is
unable to locate a ResourceBundle from the ContextClassLoader or
SystemClassLoader the Logger will also search up the class stack
and use successive calling ClassLoaders to try to locate a ResourceBundle.
(This call stack search is to allow containers to transition to
using ContextClassLoaders and is likely to be removed in future
versions.)
Formatting (including localization) is the responsibility of
the output Handler, which will typically call a Formatter.
Note that formatting need not occur synchronously. It may be delayed
until a LogRecord is actually written to an external sink.
The logging methods are grouped in five main categories:
There are a set of "log" methods that take a log level, a message
string, and optionally some parameters to the message string.
There are a set of "logp" methods (for "log precise") that are
like the "log" methods, but also take an explicit source class name
and method name.
There are a set of "logrb" method (for "log with resource bundle")
that are like the "logp" method, but also take an explicit resource
bundle name for use in localizing the log message.
There are convenience methods for tracing method entries (the
"entering" methods), method returns (the "exiting" methods) and
throwing exceptions (the "throwing" methods).
Finally, there are a set of convenience methods for use in the
very simplest cases, when a developer simply wants to log a
simple string at a given log level. These methods are named
after the standard Level names ("severe", "warning", "info", etc.)
and take a single argument, a message string.
For the methods that do not take an explicit source name and
method name, the Logging framework will make a "best effort"
to determine which class and method called into the logging method.
However, it is important to realize that this automatically inferred
information may only be approximate (or may even be quite wrong!).
Virtual machines are allowed to do extensive optimizations when
JITing and may entirely remove stack frames, making it impossible
to reliably locate the calling class and method.
All methods on Logger are multi-thread safe.
Subclassing Information: Note that a LogManager class may
provide its own implementation of named Loggers for any point in
the namespace. Therefore, any subclasses of Logger (unless they
are implemented in conjunction with a new LogManager class) should
take care to obtain a Logger instance from the LogManager class and
should delegate operations such as "isLoggable" and "log(LogRecord)"
to that instance. Note that in order to intercept all logging
output, subclasses need only override the log(LogRecord) method.
All the other logging methods are implemented as calls on this
log(LogRecord) method. |
| Fields Summary |
|---|
| private static final Handler[] | emptyHandlers | | private static final int | offValue | | private LogManager | manager | | private String | name | | private ArrayList | handlers | | private String | resourceBundleName | | private boolean | useParentHandlers | | private Filter | filter | | private boolean | anonymous | | private ResourceBundle | catalog | | private String | catalogName | | private Locale | catalogLocale | | private static Object | treeLock | | private Logger | parent | | private ArrayList | kids | | private Level | levelObject | | private volatile int | levelValue | | public static final String | GLOBAL_LOGGER_NAMEGLOBAL_LOGGER_NAME is a name for the global logger.
This name is provided as a convenience to developers who are making
casual use of the Logging package. Developers who are making serious
use of the logging package (for example in products) should create
and use their own Logger objects, with appropriate names, so that
logging can be controlled on a suitable per-Logger granularity.
The preferred way to get the global logger object is via the call
Logger.getLogger(Logger.GLOBAL_LOGGER_NAME). | | public static final Logger | globalThe "global" Logger object is provided as a convenience to developers
who are making casual use of the Logging package. Developers
who are making serious use of the logging package (for example
in products) should create and use their own Logger objects,
with appropriate names, so that logging can be controlled on a
suitable per-Logger granularity.
|
| Constructors Summary |
|---|
protected Logger(String name, String resourceBundleName)Protected method to construct a logger for a named subsystem.
The logger will be initially configured with a null Level
and with useParentHandlers true.
this.manager = LogManager.getLogManager();
if (resourceBundleName != null) {
// Note: we may get a MissingResourceException here.
setupResourceInfo(resourceBundleName);
}
this.name = name;
levelValue = Level.INFO.intValue();
| private Logger(String name)
// The manager field is not initialized here.
this.name = name;
levelValue = Level.INFO.intValue();
|
| Methods Summary |
|---|
| public synchronized void | addHandler(java.util.logging.Handler handler)Add a log Handler to receive logging messages.
By default, Loggers also send their output to their parent logger.
Typically the root Logger is configured with a set of Handlers
that essentially act as default handlers for all loggers.
// Check for null handler
handler.getClass();
checkAccess();
if (handlers == null) {
handlers = new ArrayList();
}
handlers.add(handler);
| | private void | checkAccess()
if (!anonymous) {
if (manager == null) {
// Complete initialization of the global Logger.
manager = LogManager.getLogManager();
}
manager.checkAccess();
}
| | public void | config(java.lang.String msg)Log a CONFIG message.
If the logger is currently enabled for the CONFIG message
level then the given message is forwarded to all the
registered output Handler objects.
if (Level.CONFIG.intValue() < levelValue) {
return;
}
log(Level.CONFIG, msg);
| | private void | doLog(java.util.logging.LogRecord lr)
lr.setLoggerName(name);
String ebname = getEffectiveResourceBundleName();
if (ebname != null) {
lr.setResourceBundleName(ebname);
lr.setResourceBundle(findResourceBundle(ebname));
}
log(lr);
| | private void | doLog(java.util.logging.LogRecord lr, java.lang.String rbname)
lr.setLoggerName(name);
if (rbname != null) {
lr.setResourceBundleName(rbname);
lr.setResourceBundle(findResourceBundle(rbname));
}
log(lr);
| | private void | doSetParent(java.util.logging.Logger newParent)
// System.err.println("doSetParent \"" + getName() + "\" \""
// + newParent.getName() + "\"");
synchronized (treeLock) {
// Remove ourself from any previous parent.
if (parent != null) {
// assert parent.kids != null;
for (Iterator iter = parent.kids.iterator(); iter.hasNext(); ) {
WeakReference ref = (WeakReference) iter.next();
Logger kid = (Logger) ref.get();
if (kid == this) {
iter.remove();
break;
}
}
// We have now removed ourself from our parents' kids.
}
// Set our new parent.
parent = newParent;
if (parent.kids == null) {
parent.kids = new ArrayList(2);
}
parent.kids.add(new WeakReference(this));
// As a result of the reparenting, the effective level
// may have changed for us and our children.
updateEffectiveLevel();
}
| | public void | entering(java.lang.String sourceClass, java.lang.String sourceMethod)Log a method entry.
This is a convenience method that can be used to log entry
to a method. A LogRecord with message "ENTRY", log level
FINER, and the given sourceMethod and sourceClass is logged.
if (Level.FINER.intValue() < levelValue) {
return;
}
logp(Level.FINER, sourceClass, sourceMethod, "ENTRY");
| | public void | entering(java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.Object param1)Log a method entry, with one parameter.
This is a convenience method that can be used to log entry
to a method. A LogRecord with message "ENTRY {0}", log level
FINER, and the given sourceMethod, sourceClass, and parameter
is logged.
if (Level.FINER.intValue() < levelValue) {
return;
}
Object params[] = { param1 };
logp(Level.FINER, sourceClass, sourceMethod, "ENTRY {0}", params);
| | public void | entering(java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.Object[] params)Log a method entry, with an array of parameters.
This is a convenience method that can be used to log entry
to a method. A LogRecord with message "ENTRY" (followed by a
format {N} indicator for each entry in the parameter array),
log level FINER, and the given sourceMethod, sourceClass, and
parameters is logged.
if (Level.FINER.intValue() < levelValue) {
return;
}
String msg = "ENTRY";
if (params == null ) {
logp(Level.FINER, sourceClass, sourceMethod, msg);
return;
}
for (int i = 0; i < params.length; i++) {
msg = msg + " {" + i + "}";
}
logp(Level.FINER, sourceClass, sourceMethod, msg, params);
| | public void | exiting(java.lang.String sourceClass, java.lang.String sourceMethod)Log a method return.
This is a convenience method that can be used to log returning
from a method. A LogRecord with message "RETURN", log level
FINER, and the given sourceMethod and sourceClass is logged.
if (Level.FINER.intValue() < levelValue) {
return;
}
logp(Level.FINER, sourceClass, sourceMethod, "RETURN");
| | public void | exiting(java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.Object result)Log a method return, with result object.
This is a convenience method that can be used to log returning
from a method. A LogRecord with message "RETURN {0}", log level
FINER, and the gives sourceMethod, sourceClass, and result
object is logged.
if (Level.FINER.intValue() < levelValue) {
return;
}
Object params[] = { result };
logp(Level.FINER, sourceClass, sourceMethod, "RETURN {0}", result);
| | private synchronized java.util.ResourceBundle | findResourceBundle(java.lang.String name)
// Return a null bundle for a null name.
if (name == null) {
return null;
}
Locale currentLocale = Locale.getDefault();
// Normally we should hit on our simple one entry cache.
if (catalog != null && currentLocale == catalogLocale
&& name == catalogName) {
return catalog;
}
// Use the thread's context ClassLoader. If there isn't one,
// use the SystemClassloader.
ClassLoader cl = Thread.currentThread().getContextClassLoader();
if (cl == null) {
cl = ClassLoader.getSystemClassLoader();
}
try {
catalog = ResourceBundle.getBundle(name, currentLocale, cl);
catalogName = name;
catalogLocale = currentLocale;
return catalog;
} catch (MissingResourceException ex) {
// Woops. We can't find the ResourceBundle in the default
// ClassLoader. Drop through.
}
// Fall back to searching up the call stack and trying each
// calling ClassLoader.
for (int ix = 0; ; ix++) {
Class clz = sun.reflect.Reflection.getCallerClass(ix);
if (clz == null) {
break;
}
ClassLoader cl2 = clz.getClassLoader();
if (cl2 == null) {
cl2 = ClassLoader.getSystemClassLoader();
}
if (cl == cl2) {
// We've already checked this classloader.
continue;
}
cl = cl2;
try {
catalog = ResourceBundle.getBundle(name, currentLocale, cl);
catalogName = name;
catalogLocale = currentLocale;
return catalog;
} catch (MissingResourceException ex) {
// Ok, this one didn't work either.
// Drop through, and try the next one.
}
}
if (name.equals(catalogName)) {
// Return the previous cached value for that name.
// This may be null.
return catalog;
}
// Sorry, we're out of luck.
return null;
| | public void | fine(java.lang.String msg)Log a FINE message.
If the logger is currently enabled for the FINE message
level then the given message is forwarded to all the
registered output Handler objects.
if (Level.FINE.intValue() < levelValue) {
return;
}
log(Level.FINE, msg);
| | public void | finer(java.lang.String msg)Log a FINER message.
If the logger is currently enabled for the FINER message
level then the given message is forwarded to all the
registered output Handler objects.
if (Level.FINER.intValue() < levelValue) {
return;
}
log(Level.FINER, msg);
| | public void | finest(java.lang.String msg)Log a FINEST message.
If the logger is currently enabled for the FINEST message
level then the given message is forwarded to all the
registered output Handler objects.
if (Level.FINEST.intValue() < levelValue) {
return;
}
log(Level.FINEST, msg);
| | public static synchronized java.util.logging.Logger | getAnonymousLogger()Create an anonymous Logger. The newly created Logger is not
registered in the LogManager namespace. There will be no
access checks on updates to the logger.
This factory method is primarily intended for use from applets.
Because the resulting Logger is anonymous it can be kept private
by the creating class. This removes the need for normal security
checks, which in turn allows untrusted applet code to update
the control state of the Logger. For example an applet can do
a setLevel or an addHandler on an anonymous Logger.
Even although the new logger is anonymous, it is configured
to have the root logger ("") as its parent. This means that
by default it inherits its effective level and handlers
from the root logger.
LogManager manager = LogManager.getLogManager();
Logger result = new Logger(null, null);
result.anonymous = true;
Logger root = manager.getLogger("");
result.doSetParent(root);
return result;
| | public static synchronized java.util.logging.Logger | getAnonymousLogger(java.lang.String resourceBundleName)Create an anonymous Logger. The newly created Logger is not
registered in the LogManager namespace. There will be no
access checks on updates to the logger.
This factory method is primarily intended for use from applets.
Because the resulting Logger is anonymous it can be kept private
by the creating class. This removes the need for normal security
checks, which in turn allows untrusted applet code to update
the control state of the Logger. For example an applet can do
a setLevel or an addHandler on an anonymous Logger.
Even although the new logger is anonymous, it is configured
to have the root logger ("") as its parent. This means that
by default it inherits its effective level and handlers
from the root logger.
LogManager manager = LogManager.getLogManager();
Logger result = new Logger(null, resourceBundleName);
result.anonymous = true;
Logger root = manager.getLogger("");
result.doSetParent(root);
return result;
| | private java.lang.String | getEffectiveResourceBundleName()
Logger target = this;
while (target != null) {
String rbn = target.getResourceBundleName();
if (rbn != null) {
return rbn;
}
target = target.getParent();
}
return null;
| | public java.util.logging.Filter | getFilter()Get the current filter for this Logger.
return filter;
| | public synchronized java.util.logging.Handler[] | getHandlers()Get the Handlers associated with this logger.
if (handlers == null) {
return emptyHandlers;
}
Handler result[] = new Handler[handlers.size()];
result = (Handler [])handlers.toArray(result);
return result;
| | public java.util.logging.Level | getLevel()Get the log Level that has been specified for this Logger.
The result may be null, which means that this logger's
effective level will be inherited from its parent.
return levelObject;
| | public static synchronized java.util.logging.Logger | getLogger(java.lang.String name)Find or create a logger for a named subsystem. If a logger has
already been created with the given name it is returned. Otherwise
a new logger is created.
If a new logger is created its log level will be configured
based on the LogManager configuration and it will configured
to also send logging output to its parent's handlers. It will
be registered in the LogManager global namespace.
LogManager manager = LogManager.getLogManager();
Logger result = manager.getLogger(name);
if (result == null) {
result = new Logger(name, null);
manager.addLogger(result);
result = manager.getLogger(name);
}
return result;
| | public static synchronized java.util.logging.Logger | getLogger(java.lang.String name, java.lang.String resourceBundleName)Find or create a logger for a named subsystem. If a logger has
already been created with the given name it is returned. Otherwise
a new logger is created.
If a new logger is created its log level will be configured
based on the LogManager and it will configured to also send logging
output to its parent loggers Handlers. It will be registered in
the LogManager global namespace.
If the named Logger already exists and does not yet have a
localization resource bundle then the given resource bundle
name is used. If the named Logger already exists and has
a different resource bundle name then an IllegalArgumentException
is thrown.
LogManager manager = LogManager.getLogManager();
Logger result = manager.getLogger(name);
if (result == null) {
// Create a new logger.
// Note: we may get a MissingResourceException here.
result = new Logger(name, resourceBundleName);
manager.addLogger(result);
result = manager.getLogger(name);
}
if (result.resourceBundleName == null) {
// Note: we may get a MissingResourceException here.
result.setupResourceInfo(resourceBundleName);
} else if (!result.resourceBundleName.equals(resourceBundleName)) {
throw new IllegalArgumentException(result.resourceBundleName +
" != " + resourceBundleName);
}
return result;
| | public java.lang.String | getName()Get the name for this logger.
return name;
| | public java.util.logging.Logger | getParent()Return the parent for this Logger.
This method returns the nearest extant parent in the namespace.
Thus if a Logger is called "a.b.c.d", and a Logger called "a.b"
has been created but no logger "a.b.c" exists, then a call of
getParent on the Logger "a.b.c.d" will return the Logger "a.b".
The result will be null if it is called on the root Logger
in the namespace.
synchronized (treeLock) {
return parent;
}
| | public java.util.ResourceBundle | getResourceBundle()Retrieve the localization resource bundle for this
logger for the current default locale. Note that if
the result is null, then the Logger will use a resource
bundle inherited from its parent.
return findResourceBundle(getResourceBundleName());
| | public java.lang.String | getResourceBundleName()Retrieve the localization resource bundle name for this
logger. Note that if the result is null, then the Logger
will use a resource bundle name inherited from its parent.
return resourceBundleName;
| | public synchronized boolean | getUseParentHandlers()Discover whether or not this logger is sending its output
to its parent logger.
return useParentHandlers;
| | public void | info(java.lang.String msg)Log an INFO message.
If the logger is currently enabled for the INFO message
level then the given message is forwarded to all the
registered output Handler objects.
if (Level.INFO.intValue() < levelValue) {
return;
}
log(Level.INFO, msg);
| | public boolean | isLoggable(java.util.logging.Level level)Check if a message of the given level would actually be logged
by this logger. This check is based on the Loggers effective level,
which may be inherited from its parent.
if (level.intValue() < levelValue || levelValue == offValue) {
return false;
}
return true;
| | public void | log(java.util.logging.LogRecord record)Log a LogRecord.
All the other logging methods in this class call through
this method to actually perform any logging. Subclasses can
override this single method to capture all log activity.
if (record.getLevel().intValue() < levelValue || levelValue == offValue) {
return;
}
synchronized (this) {
if (filter != null && !filter.isLoggable(record)) {
return;
}
}
// Post the LogRecord to all our Handlers, and then to
// our parents' handlers, all the way up the tree.
Logger logger = this;
while (logger != null) {
Handler targets[] = logger.getHandlers();
if (targets != null) {
for (int i = 0; i < targets.length; i++) {
targets[i].publish(record);
}
}
if (!logger.getUseParentHandlers()) {
break;
}
logger = logger.getParent();
}
| | public void | log(java.util.logging.Level level, java.lang.String msg)Log a message, with no arguments.
If the logger is currently enabled for the given message
level then the given message is forwarded to all the
registered output Handler objects.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
doLog(lr);
| | public void | log(java.util.logging.Level level, java.lang.String msg, java.lang.Object param1)Log a message, with one object parameter.
If the logger is currently enabled for the given message
level then a corresponding LogRecord is created and forwarded
to all the registered output Handler objects.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
Object params[] = { param1 };
lr.setParameters(params);
doLog(lr);
| | public void | log(java.util.logging.Level level, java.lang.String msg, java.lang.Object[] params)Log a message, with an array of object arguments.
If the logger is currently enabled for the given message
level then a corresponding LogRecord is created and forwarded
to all the registered output Handler objects.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setParameters(params);
doLog(lr);
| | public void | log(java.util.logging.Level level, java.lang.String msg, java.lang.Throwable thrown)Log a message, with associated Throwable information.
If the logger is currently enabled for the given message
level then the given arguments are stored in a LogRecord
which is forwarded to all registered output handlers.
Note that the thrown argument is stored in the LogRecord thrown
property, rather than the LogRecord parameters property. Thus is it
processed specially by output Formatters and is not treated
as a formatting parameter to the LogRecord message property.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setThrown(thrown);
doLog(lr);
| | public void | logp(java.util.logging.Level level, java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.String msg)Log a message, specifying source class and method,
with no arguments.
If the logger is currently enabled for the given message
level then the given message is forwarded to all the
registered output Handler objects.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
doLog(lr);
| | public void | logp(java.util.logging.Level level, java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.String msg, java.lang.Object param1)Log a message, specifying source class and method,
with a single object parameter to the log message.
If the logger is currently enabled for the given message
level then a corresponding LogRecord is created and forwarded
to all the registered output Handler objects.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
Object params[] = { param1 };
lr.setParameters(params);
doLog(lr);
| | public void | logp(java.util.logging.Level level, java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.String msg, java.lang.Object[] params)Log a message, specifying source class and method,
with an array of object arguments.
If the logger is currently enabled for the given message
level then a corresponding LogRecord is created and forwarded
to all the registered output Handler objects.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
lr.setParameters(params);
doLog(lr);
| | public void | logp(java.util.logging.Level level, java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.String msg, java.lang.Throwable thrown)Log a message, specifying source class and method,
with associated Throwable information.
If the logger is currently enabled for the given message
level then the given arguments are stored in a LogRecord
which is forwarded to all registered output handlers.
Note that the thrown argument is stored in the LogRecord thrown
property, rather than the LogRecord parameters property. Thus is it
processed specially by output Formatters and is not treated
as a formatting parameter to the LogRecord message property.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
lr.setThrown(thrown);
doLog(lr);
| | public void | logrb(java.util.logging.Level level, java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.String bundleName, java.lang.String msg)Log a message, specifying source class, method, and resource bundle name
with no arguments.
If the logger is currently enabled for the given message
level then the given message is forwarded to all the
registered output Handler objects.
The msg string is localized using the named resource bundle. If the
resource bundle name is null, or an empty String or invalid
then the msg string is not localized.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
doLog(lr, bundleName);
| | public void | logrb(java.util.logging.Level level, java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.String bundleName, java.lang.String msg, java.lang.Object param1)Log a message, specifying source class, method, and resource bundle name,
with a single object parameter to the log message.
If the logger is currently enabled for the given message
level then a corresponding LogRecord is created and forwarded
to all the registered output Handler objects.
The msg string is localized using the named resource bundle. If the
resource bundle name is null, or an empty String or invalid
then the msg string is not localized.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
Object params[] = { param1 };
lr.setParameters(params);
doLog(lr, bundleName);
| | public void | logrb(java.util.logging.Level level, java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.String bundleName, java.lang.String msg, java.lang.Object[] params)Log a message, specifying source class, method, and resource bundle name,
with an array of object arguments.
If the logger is currently enabled for the given message
level then a corresponding LogRecord is created and forwarded
to all the registered output Handler objects.
The msg string is localized using the named resource bundle. If the
resource bundle name is null, or an empty String or invalid
then the msg string is not localized.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
lr.setParameters(params);
doLog(lr, bundleName);
| | public void | logrb(java.util.logging.Level level, java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.String bundleName, java.lang.String msg, java.lang.Throwable thrown)Log a message, specifying source class, method, and resource bundle name,
with associated Throwable information.
If the logger is currently enabled for the given message
level then the given arguments are stored in a LogRecord
which is forwarded to all registered output handlers.
The msg string is localized using the named resource bundle. If the
resource bundle name is null, or an empty String or invalid
then the msg string is not localized.
Note that the thrown argument is stored in the LogRecord thrown
property, rather than the LogRecord parameters property. Thus is it
processed specially by output Formatters and is not treated
as a formatting parameter to the LogRecord message property.
if (level.intValue() < levelValue || levelValue == offValue) {
return;
}
LogRecord lr = new LogRecord(level, msg);
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
lr.setThrown(thrown);
doLog(lr, bundleName);
| | public synchronized void | removeHandler(java.util.logging.Handler handler)Remove a log Handler.
Returns silently if the given Handler is not found or is null
checkAccess();
if (handler == null) {
return;
}
if (handlers == null) {
return;
}
handlers.remove(handler);
| | public void | setFilter(java.util.logging.Filter newFilter)Set a filter to control output on this Logger.
After passing the initial "level" check, the Logger will
call this Filter to check if a log record should really
be published.
checkAccess();
filter = newFilter;
| | public void | setLevel(java.util.logging.Level newLevel)Set the log level specifying which message levels will be
logged by this logger. Message levels lower than this
value will be discarded. The level value Level.OFF
can be used to turn off logging.
If the new level is null, it means that this node should
inherit its level from its nearest ancestor with a specific
(non-null) level value.
checkAccess();
synchronized (treeLock) {
levelObject = newLevel;
updateEffectiveLevel();
}
| | void | setLogManager(java.util.logging.LogManager manager)
this.manager = manager;
| | public void | setParent(java.util.logging.Logger parent)Set the parent for this Logger. This method is used by
the LogManager to update a Logger when the namespace changes.
It should not be called from application code.
if (parent == null) {
throw new NullPointerException();
}
manager.checkAccess();
doSetParent(parent);
| | public synchronized void | setUseParentHandlers(boolean useParentHandlers)Specify whether or not this logger should send its output
to it's parent Logger. This means that any LogRecords will
also be written to the parent's Handlers, and potentially
to its parent, recursively up the namespace.
checkAccess();
this.useParentHandlers = useParentHandlers;
| | private synchronized void | setupResourceInfo(java.lang.String name)
if (name == null) {
return;
}
ResourceBundle rb = findResourceBundle(name);
if (rb == null) {
// We've failed to find an expected ResourceBundle.
throw new MissingResourceException("Can't find " + name + " bundle", name, "");
}
resourceBundleName = name;
| | public void | severe(java.lang.String msg)Log a SEVERE message.
If the logger is currently enabled for the SEVERE message
level then the given message is forwarded to all the
registered output Handler objects.
if (Level.SEVERE.intValue() < levelValue) {
return;
}
log(Level.SEVERE, msg);
| | public void | throwing(java.lang.String sourceClass, java.lang.String sourceMethod, java.lang.Throwable thrown)Log throwing an exception.
This is a convenience method to log that a method is
terminating by throwing an exception. The logging is done
using the FINER level.
If the logger is currently enabled for the given message
level then the given arguments are stored in a LogRecord
which is forwarded to all registered output handlers. The
LogRecord's message is set to "THROW".
Note that the thrown argument is stored in the LogRecord thrown
property, rather than the LogRecord parameters property. Thus is it
processed specially by output Formatters and is not treated
as a formatting parameter to the LogRecord message property.
if (Level.FINER.intValue() < levelValue || levelValue == offValue ) {
return;
}
LogRecord lr = new LogRecord(Level.FINER, "THROW");
lr.setSourceClassName(sourceClass);
lr.setSourceMethodName(sourceMethod);
lr.setThrown(thrown);
doLog(lr);
| | private void | updateEffectiveLevel()
// assert Thread.holdsLock(treeLock);
// Figure out our current effective level.
int newLevelValue;
if (levelObject != null) {
newLevelValue = levelObject.intValue();
} else {
if (parent != null) {
newLevelValue = parent.levelValue;
} else {
// This may happen during initialization.
newLevelValue = Level.INFO.intValue();
}
}
// If our effective value hasn't changed, we're done.
if (levelValue == newLevelValue) {
return;
}
levelValue = newLevelValue;
// System.err.println("effective level: \"" + getName() + "\" := " + level);
// Recursively update the level on each of our kids.
if (kids != null) {
for (int i = 0; i < kids.size(); i++) {
WeakReference ref = (WeakReference)kids.get(i);
Logger kid = (Logger) ref.get();
if (kid != null) {
kid.updateEffectiveLevel();
}
}
}
| | public void | warning(java.lang.String msg)Log a WARNING message.
If the logger is currently enabled for the WARNING message
level then the given message is forwarded to all the
registered output Handler objects.
if (Level.WARNING.intValue() < levelValue) {
return;
}
log(Level.WARNING, msg);
|
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