Package org.apache.felix.scr.impl.logger

Class AbstractLogger

java.lang.Object

org.apache.felix.scr.impl.logger.AbstractLogger

Direct Known Subclasses:

ComponentLogger, LogServiceEnabledLogger

public abstract class AbstractLogger
extends Object

This is a common base for all loggers

Field Summary

Fields

Modifier and Type	Field	Description
private final ScrConfiguration	config
private String	prefix	The prefix put for each log message

Constructor Summary

Constructors

Constructor	Description
AbstractLogger(ScrConfiguration config, String prefix)

Method Summary

Modifier and Type	Method	Description
private String	format(String pattern, Object... arguments)
(package private) static String	getBundleIdentifier(org.osgi.framework.Bundle bundle)
(package private) ScrConfiguration	getConfiguration()
(package private) abstract InternalLogger	getLogger()	Get the internal logger
(package private) String	getPrefix()
boolean	isLogEnabled(int level)	Returns true if logging for the given level is enabled.
boolean	log(int level, String message, Throwable ex)	Method to actually emit the log message.
boolean	log(int level, String pattern, Throwable ex, Object... arguments)	Method to actually emit the log message.
(package private) void	setPrefix(String value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

config

private final ScrConfiguration config

prefix

private volatile String prefix

The prefix put for each log message

Constructor Details

AbstractLogger

AbstractLogger(ScrConfiguration config,
 String prefix)

Method Details

getConfiguration

ScrConfiguration getConfiguration()

setPrefix

void setPrefix(String value)

getPrefix

String getPrefix()

getLogger

abstract InternalLogger getLogger()

Get the internal logger

Returns:

The internal logger

isLogEnabled

public boolean isLogEnabled(int level)

Returns true if logging for the given level is enabled.

log

public boolean log(int level,
 String pattern,
 Throwable ex,
 Object... arguments)

Method to actually emit the log message. If the LogService is available, the message will be logged through the LogService. Otherwise the message is logged to stdout (or stderr in case of LOG_ERROR level messages),

Parameters:

level - The log level to log the message at

pattern - The java.text.MessageFormat message format string for preparing the message

ex - An optional Throwable whose stack trace is written,

arguments - The format arguments for the pattern string.

log

public boolean log(int level,
 String message,
 Throwable ex)

Method to actually emit the log message. If the LogService is available, the message will be logged through the LogService. Otherwise the message is logged to stdout (or stderr in case of LOG_ERROR level messages),

Parameters:

level - The log level of the messages. This corresponds to the log levels defined by the OSGi LogService.

message - The message to print

ex - The Throwable causing the message to be logged.

getBundleIdentifier

static String getBundleIdentifier(org.osgi.framework.Bundle bundle)

format

private String format(String pattern,
 Object... arguments)