com.holonplatform.core.internal

Interface Logger

All Superinterfaces:

Serializable

All Known Implementing Classes:

JulLogger, SLF4JLogger

public interface Logger
extends Serializable

Logger service.

Since:

5.0.0

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Logger.Level Log levels

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	SLF4J_PRESENT Whether QueryDSL is available from classpath of current ClassLoader

Method Summary

Modifier and Type	Method and Description
static Logger	create(String loggerName) Create a default logger instance.
default void	debug(Supplier<String> messageSupplier) Log a Logger.Level.DEBUG type message, if debug log level is enabled.
default void	debug(Supplier<String> messageSupplier, Throwable throwable) Log a Logger.Level.DEBUG type message and exception, if debug log level is enabled.
default void	error(String message) Log a Logger.Level.ERROR type message.
default void	error(String message, Throwable throwable) Log a Logger.Level.ERROR type message and exception.
default void	info(String message) Log a Logger.Level.INFORMATION type message.
default void	info(String message, Throwable throwable) Log a Logger.Level.INFORMATION type message and exception.
boolean	isEnabled(Logger.Level level) Check whether given log level is enabled
void	log(Logger.Level level, String message) Log a message
void	log(Logger.Level level, String message, Throwable throwable) Log a message and a Throwable exception.
default void	warn(String message) Log a Logger.Level.WARNING type message.
default void	warn(String message, Throwable throwable) Log a Logger.Level.WARNING type message and exception.

Field Detail

SLF4J_PRESENT

static final boolean SLF4J_PRESENT

Whether QueryDSL is available from classpath of current ClassLoader

Method Detail

log

void log(Logger.Level level,
         String message)

Log a message

Parameters:

level - Log level (not null)

message - Message to log

log

void log(Logger.Level level,
         String message,
         Throwable throwable)

Log a message and a Throwable exception.

Parameters:

level - Log level (not null)

message - Message to log

throwable - Exception to log

isEnabled

boolean isEnabled(Logger.Level level)

Check whether given log level is enabled

Parameters:

level - Level to check

Returns:

true if enabled, false otherwise

info

default void info(String message)

Log a Logger.Level.INFORMATION type message.

Parameters:

message - Message to log

info

default void info(String message,
                  Throwable throwable)

Log a Logger.Level.INFORMATION type message and exception.

Parameters:

message - Message to log

throwable - Exception to log

warn

default void warn(String message)

Log a Logger.Level.WARNING type message.

Parameters:

message - Message to log

warn

default void warn(String message,
                  Throwable throwable)

Log a Logger.Level.WARNING type message and exception.

Parameters:

message - Message to log

throwable - Exception to log

error

default void error(String message)

Log a Logger.Level.ERROR type message.

Parameters:

message - Message to log

error

default void error(String message,
                   Throwable throwable)

Log a Logger.Level.ERROR type message and exception.

Parameters:

message - Message to log

throwable - Exception to log

debug

default void debug(Supplier<String> messageSupplier)

Log a Logger.Level.DEBUG type message, if debug log level is enabled.

Parameters:

messageSupplier - Message supplier (not null)

debug

default void debug(Supplier<String> messageSupplier,
                   Throwable throwable)

Log a Logger.Level.DEBUG type message and exception, if debug log level is enabled.

Parameters:

messageSupplier - Message supplier (not null)

throwable - Exception to log

create

static Logger create(String loggerName)

Create a default logger instance.

Parameters:

loggerName - Logger name (not null)

Returns:

New logger