org.apache.felix.ipojo.util
Class Logger

java.lang.Object
  org.apache.felix.ipojo.util.Logger

public class Logger
extends java.lang.Object

iPOJO Logger. This class is an helper class implementing a simple log system. This logger sends log messages to a log service if available.

Author:

Felix Project Team

Field Summary

static int	DEBUG The Log Level DEBUG.
static int	ERROR The Log Level ERROR.
static int	INFO The Log Level INFO.
static java.lang.String	IPOJO_LOG_LEVEL_HEADER iPOJO log level manifest header.
static java.lang.String	IPOJO_LOG_LEVEL_PROP The iPOJO default log level property.
private org.osgi.framework.BundleContext	m_context The Bundle Context used to get the log service.
private int	m_level The trace level of this logger.
private java.lang.String	m_name The name of the logger.
static int	WARNING The Log Level WARNING.

Constructor Summary

Logger(org.osgi.framework.BundleContext context, java.lang.String name)
Create a logger.

Logger(org.osgi.framework.BundleContext context, java.lang.String name, int level)
Creates a logger.

Method Summary

private void	dispatch(int level, java.lang.String msg) Internal log method.
private void	dispatch(int level, java.lang.String msg, java.lang.Throwable exception) Internal log method.
private static int	getDefaultLevel(org.osgi.framework.BundleContext context) Gets the default logger level.
void	log(int level, java.lang.String msg) Logs a message.
void	log(int level, java.lang.String msg, java.lang.Throwable exception) Logs a message with an exception.

Methods inherited from class java.lang.Object

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

Field Detail

IPOJO_LOG_LEVEL_PROP

public static final java.lang.String IPOJO_LOG_LEVEL_PROP

The iPOJO default log level property.

See Also:

Constant Field Values

IPOJO_LOG_LEVEL_HEADER

public static final java.lang.String IPOJO_LOG_LEVEL_HEADER

iPOJO log level manifest header. Use an upper case to support bnd.

See Also:

Constant Field Values

ERROR

public static final int ERROR

The Log Level ERROR.

See Also:

Constant Field Values

WARNING

public static final int WARNING

The Log Level WARNING.

See Also:

Constant Field Values

INFO

public static final int INFO

The Log Level INFO.

See Also:

Constant Field Values

DEBUG

public static final int DEBUG

The Log Level DEBUG.

See Also:

Constant Field Values

m_context

private org.osgi.framework.BundleContext m_context

The Bundle Context used to get the log service.

m_name

private java.lang.String m_name

The name of the logger.

m_level

private int m_level

The trace level of this logger.

Constructor Detail

Logger

public Logger(org.osgi.framework.BundleContext context,
              java.lang.String name,
              int level)

Creates a logger.

Parameters:

context - the bundle context

name - the name of the logger

level - the trace level

Logger

public Logger(org.osgi.framework.BundleContext context,
              java.lang.String name)

Create a logger. Uses the default logger level.

Parameters:

context - the bundle context

name - the name of the logger

Method Detail

log

public void log(int level,
                java.lang.String msg)

Logs a message.

Parameters:

level - the level of the message

msg - the the message to log

log

public void log(int level,
                java.lang.String msg,
                java.lang.Throwable exception)

Logs a message with an exception.

Parameters:

level - the level of the message

msg - the message to log

exception - the exception attached to the message

dispatch

private void dispatch(int level,
                      java.lang.String msg)

Internal log method.

Parameters:

level - the level of the message.

msg - the message to log

dispatch

private void dispatch(int level,
                      java.lang.String msg,
                      java.lang.Throwable exception)

Internal log method.

Parameters:

level - the level of the message.

msg - the message to log

exception - the exception attached to the message

getDefaultLevel

private static int getDefaultLevel(org.osgi.framework.BundleContext context)

Gets the default logger level. The property is searched inside the framework properties, the system properties, and in the manifest from the given bundle context. By default, set the level to WARNING.

Parameters:

context - the bundle context.

Returns:

the default log level.