Reactor Core 3.6.0 · reactor.util.Logger

Modifier and Type	Class and Description
public static interface	Logger.ChoiceOfMessageSupplier A kind of `java.util.function.Predicate` and `Supplier` mix, provides two variants of a message `String` depending on the level of detail desired.

Method Summary

Modifier and Type	Method and Description
public void	debug(String the message string to be logged msg) Log a message at the DEBUG level.
public void	debug(String the format string format, Object... a list of 3 or more arguments arguments) Log a message at the DEBUG level according to the specified format and arguments.
public void	debug(String the message accompanying the exception msg, Throwable the exception (throwable) to log t) Log an exception (throwable) at the DEBUG level with an accompanying message.
public void	error(String the message string to be logged msg) Log a message at the ERROR level.
public void	error(String the format string format, Object... a list of 3 or more arguments arguments) Log a message at the ERROR level according to the specified format and arguments.
public void	error(String the message accompanying the exception msg, Throwable the exception (throwable) to log t) Log an exception (throwable) at the ERROR level with an accompanying message.
public default void	errorOrDebug(Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for ERROR level messageSupplier) Convenience method to log a message that is different according to the log level.
public default void	errorOrDebug(Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for ERROR level messageSupplier, Throwable the `Throwable` the original exception to be logged cause) Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level.
public String	Returns: name of this logger instance getName() Return the name of this `Logger` instance.
public void	info(String the message string to be logged msg) Log a message at the INFO level.
public void	info(String the format string format, Object... a list of 3 or more arguments arguments) Log a message at the INFO level according to the specified format and arguments.
public void	info(String the message accompanying the exception msg, Throwable the exception (throwable) to log t) Log an exception (throwable) at the INFO level with an accompanying message.
public default void	infoOrDebug(Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for INFO level messageSupplier) Convenience method to log a message that is different according to the log level.
public default void	infoOrDebug(Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for INFO level messageSupplier, Throwable the `Throwable` the original exception to be logged cause) Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level.
public boolean	Returns: True if this Logger is enabled for the DEBUG level, false otherwise. isDebugEnabled() Is the logger instance enabled for the DEBUG level?
public boolean	Returns: True if this Logger is enabled for the ERROR level, false otherwise. isErrorEnabled() Is the logger instance enabled for the ERROR level?
public boolean	Returns: True if this Logger is enabled for the INFO level, false otherwise. isInfoEnabled() Is the logger instance enabled for the INFO level?
public boolean	Returns: True if this Logger is enabled for the TRACE level, false otherwise. isTraceEnabled() Is the logger instance enabled for the TRACE level?
public boolean	Returns: True if this Logger is enabled for the WARN level, false otherwise. isWarnEnabled() Is the logger instance enabled for the WARN level?
public void	trace(String the message string to be logged msg) Log a message at the TRACE level.
public void	trace(String the format string format, Object... a list of 3 or more arguments arguments) Log a message at the TRACE level according to the specified format and arguments.
public void	trace(String the message accompanying the exception msg, Throwable the exception (throwable) to log t) Log an exception (throwable) at the TRACE level with an accompanying message.
public void	warn(String the message string to be logged msg) Log a message at the WARN level.
public void	warn(String the format string format, Object... a list of 3 or more arguments arguments) Log a message at the WARN level according to the specified format and arguments.
public void	warn(String the message accompanying the exception msg, Throwable the exception (throwable) to log t) Log an exception (throwable) at the WARN level with an accompanying message.
public default void	warnOrDebug(Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for WARN level messageSupplier) Convenience method to log a message that is different according to the log level.
public default void	warnOrDebug(Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for WARN level messageSupplier, Throwable the `Throwable` the original exception to be logged cause) Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level.

Method Detail

debug	back to summary
public void debug(String msg) Log a message at the DEBUG level. Parameters msg:String the message string to be logged

debug

back to summary

public void debug(String msg)

Log a message at the DEBUG level.

Parameters

msg:String: the message string to be logged

debug back to summary

debug	back to summary
public void debug(String format, Object... arguments) Log a message at the DEBUG level according to the specified format and arguments. This form avoids superfluous string concatenation when the logger is disabled for the DEBUG level. However, this variant incurs the hidden (and relatively small) cost of creating an `Object[]` before invoking the method, even if this logger is disabled for DEBUG. Parameters format:String the format string arguments:Object[] a list of 3 or more arguments

public void debug(String format, Object... arguments)

Log a message at the DEBUG level according to the specified format and arguments.

This form avoids superfluous string concatenation when the logger is disabled for the DEBUG level. However, this variant incurs the hidden (and relatively small) cost of creating an Object[] before invoking the method, even if this logger is disabled for DEBUG.

Parameters

format:String: the format string
arguments:Object[]: a list of 3 or more arguments

debug	back to summary
public void debug(String msg, Throwable t) Log an exception (throwable) at the DEBUG level with an accompanying message. Parameters msg:String the message accompanying the exception t:Throwable the exception (throwable) to log

debug

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public void debug(String msg, Throwable t)

Log an exception (throwable) at the DEBUG level with an accompanying message.

Parameters

msg:String: the message accompanying the exception
t:Throwable: the exception (throwable) to log

error	back to summary
public void error(String msg) Log a message at the ERROR level. Parameters msg:String the message string to be logged

error

back to summary

public void error(String msg)

Log a message at the ERROR level.

Parameters

msg:String: the message string to be logged

error back to summary

error	back to summary
public void error(String format, Object... arguments) Log a message at the ERROR level according to the specified format and arguments. This form avoids superfluous string concatenation when the logger is disabled for the ERROR level. However, this variant incurs the hidden (and relatively small) cost of creating an `Object[]` before invoking the method, even if this logger is disabled for ERROR. Parameters format:String the format string arguments:Object[] a list of 3 or more arguments

public void error(String format, Object... arguments)

Log a message at the ERROR level according to the specified format and arguments.

This form avoids superfluous string concatenation when the logger is disabled for the ERROR level. However, this variant incurs the hidden (and relatively small) cost of creating an Object[] before invoking the method, even if this logger is disabled for ERROR.

Parameters

format:String: the format string
arguments:Object[]: a list of 3 or more arguments

error	back to summary
public void error(String msg, Throwable t) Log an exception (throwable) at the ERROR level with an accompanying message. Parameters msg:String the message accompanying the exception t:Throwable the exception (throwable) to log

error

back to summary

public void error(String msg, Throwable t)

Log an exception (throwable) at the ERROR level with an accompanying message.

Parameters

msg:String: the message accompanying the exception
t:Throwable: the exception (throwable) to log

errorOrDebug back to summary

errorOrDebug	back to summary
public default void errorOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier) Convenience method to log a message that is different according to the log level. In priority, DEBUG level is used if `isDebugEnabled()`. Otherwise, ERROR level is used (unless `isErrorEnabled()` is false). This can be used to log different level of details according to the active log level. Parameters messageSupplier:Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for ERROR level See Also `error(String)`

public default void errorOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier)

Convenience method to log a message that is different according to the log level. In priority, DEBUG level is used if isDebugEnabled(). Otherwise, ERROR level is used (unless isErrorEnabled() is false).

This can be used to log different level of details according to the active log level.

Parameters

messageSupplier:Logger.ChoiceOfMessageSupplier: the ChoiceOfMessageSupplier invoked in priority with true for the DEBUG level message, or false for ERROR level

See Also

error(String)

errorOrDebug back to summary

errorOrDebug	back to summary
public default void errorOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier, Throwable cause) Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level. In priority, DEBUG level is used if `isDebugEnabled()`. Otherwise, ERROR level is used (unless `isErrorEnabled()` is false). This can be used to log different level of details according to the active log level. Parameters messageSupplier:Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for ERROR level cause:Throwable the `Throwable` the original exception to be logged See Also `error(String, Throwable)`

public default void errorOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier, Throwable cause)

Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level. In priority, DEBUG level is used if isDebugEnabled(). Otherwise, ERROR level is used (unless isErrorEnabled() is false).

This can be used to log different level of details according to the active log level.

Parameters

messageSupplier:Logger.ChoiceOfMessageSupplier: the ChoiceOfMessageSupplier invoked in priority with true for the DEBUG level message, or false for ERROR level
cause:Throwable: the Throwable the original exception to be logged

See Also

error(String, Throwable)

getName back to summary

getName	back to summary
public String getName() Return the name of this `Logger` instance. Returns:String name of this logger instance

public String getName()

Return the name of this Logger instance.

Returns:String: name of this logger instance

info	back to summary
public void info(String msg) Log a message at the INFO level. Parameters msg:String the message string to be logged

info

back to summary

public void info(String msg)

Log a message at the INFO level.

Parameters

msg:String: the message string to be logged

info back to summary

info	back to summary
public void info(String format, Object... arguments) Log a message at the INFO level according to the specified format and arguments. This form avoids superfluous string concatenation when the logger is disabled for the INFO level. However, this variant incurs the hidden (and relatively small) cost of creating an `Object[]` before invoking the method, even if this logger is disabled for INFO. Parameters format:String the format string arguments:Object[] a list of 3 or more arguments

public void info(String format, Object... arguments)

Log a message at the INFO level according to the specified format and arguments.

This form avoids superfluous string concatenation when the logger is disabled for the INFO level. However, this variant incurs the hidden (and relatively small) cost of creating an Object[] before invoking the method, even if this logger is disabled for INFO.

Parameters

format:String: the format string
arguments:Object[]: a list of 3 or more arguments

info	back to summary
public void info(String msg, Throwable t) Log an exception (throwable) at the INFO level with an accompanying message. Parameters msg:String the message accompanying the exception t:Throwable the exception (throwable) to log

info

back to summary

public void info(String msg, Throwable t)

Log an exception (throwable) at the INFO level with an accompanying message.

Parameters

msg:String: the message accompanying the exception
t:Throwable: the exception (throwable) to log

infoOrDebug back to summary

infoOrDebug	back to summary
public default void infoOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier) Convenience method to log a message that is different according to the log level. In priority, DEBUG level is used if `isDebugEnabled()`. Otherwise, INFO level is used (unless `isInfoEnabled()` is false). This can be used to log different level of details according to the active log level. Parameters messageSupplier:Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for INFO level See Also `info(String)`

public default void infoOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier)

Convenience method to log a message that is different according to the log level. In priority, DEBUG level is used if isDebugEnabled(). Otherwise, INFO level is used (unless isInfoEnabled() is false).

This can be used to log different level of details according to the active log level.

Parameters

messageSupplier:Logger.ChoiceOfMessageSupplier: the ChoiceOfMessageSupplier invoked in priority with true for the DEBUG level message, or false for INFO level

See Also

info(String)

infoOrDebug back to summary

infoOrDebug	back to summary
public default void infoOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier, Throwable cause) Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level. In priority, DEBUG level is used if `isDebugEnabled()`. Otherwise, INFO level is used (unless `isInfoEnabled()` is false). This can be used to log different level of details according to the active log level. Parameters messageSupplier:Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for INFO level cause:Throwable the `Throwable` the original exception to be logged See Also `info(String, Throwable)`

public default void infoOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier, Throwable cause)

Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level. In priority, DEBUG level is used if isDebugEnabled(). Otherwise, INFO level is used (unless isInfoEnabled() is false).

This can be used to log different level of details according to the active log level.

Parameters

messageSupplier:Logger.ChoiceOfMessageSupplier: the ChoiceOfMessageSupplier invoked in priority with true for the DEBUG level message, or false for INFO level
cause:Throwable: the Throwable the original exception to be logged

See Also

info(String, Throwable)

isDebugEnabled	back to summary
public boolean isDebugEnabled() Is the logger instance enabled for the DEBUG level? Returns:boolean True if this Logger is enabled for the DEBUG level, false otherwise.

isDebugEnabled

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public boolean isDebugEnabled()

Is the logger instance enabled for the DEBUG level?

Returns:boolean: True if this Logger is enabled for the DEBUG level, false otherwise.

isErrorEnabled	back to summary
public boolean isErrorEnabled() Is the logger instance enabled for the ERROR level? Returns:boolean True if this Logger is enabled for the ERROR level, false otherwise.

isErrorEnabled

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public boolean isErrorEnabled()

Is the logger instance enabled for the ERROR level?

Returns:boolean: True if this Logger is enabled for the ERROR level, false otherwise.

isInfoEnabled	back to summary
public boolean isInfoEnabled() Is the logger instance enabled for the INFO level? Returns:boolean True if this Logger is enabled for the INFO level, false otherwise.

isInfoEnabled

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public boolean isInfoEnabled()

Is the logger instance enabled for the INFO level?

Returns:boolean: True if this Logger is enabled for the INFO level, false otherwise.

isTraceEnabled	back to summary
public boolean isTraceEnabled() Is the logger instance enabled for the TRACE level? Returns:boolean True if this Logger is enabled for the TRACE level, false otherwise.

isTraceEnabled

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public boolean isTraceEnabled()

Is the logger instance enabled for the TRACE level?

Returns:boolean: True if this Logger is enabled for the TRACE level, false otherwise.

isWarnEnabled	back to summary
public boolean isWarnEnabled() Is the logger instance enabled for the WARN level? Returns:boolean True if this Logger is enabled for the WARN level, false otherwise.

isWarnEnabled

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public boolean isWarnEnabled()

Is the logger instance enabled for the WARN level?

Returns:boolean: True if this Logger is enabled for the WARN level, false otherwise.

trace	back to summary
public void trace(String msg) Log a message at the TRACE level. Parameters msg:String the message string to be logged

trace

back to summary

public void trace(String msg)

Log a message at the TRACE level.

Parameters

msg:String: the message string to be logged

trace back to summary

trace	back to summary
public void trace(String format, Object... arguments) Log a message at the TRACE level according to the specified format and arguments. This form avoids superfluous string concatenation when the logger is disabled for the TRACE level. However, this variant incurs the hidden (and relatively small) cost of creating an `Object[]` before invoking the method, even if this logger is disabled for TRACE. Parameters format:String the format string arguments:Object[] a list of 3 or more arguments

public void trace(String format, Object... arguments)

Log a message at the TRACE level according to the specified format and arguments.

This form avoids superfluous string concatenation when the logger is disabled for the TRACE level. However, this variant incurs the hidden (and relatively small) cost of creating an Object[] before invoking the method, even if this logger is disabled for TRACE.

Parameters

format:String: the format string
arguments:Object[]: a list of 3 or more arguments

trace	back to summary
public void trace(String msg, Throwable t) Log an exception (throwable) at the TRACE level with an accompanying message. Parameters msg:String the message accompanying the exception t:Throwable the exception (throwable) to log

trace

back to summary

public void trace(String msg, Throwable t)

Log an exception (throwable) at the TRACE level with an accompanying message.

Parameters

msg:String: the message accompanying the exception
t:Throwable: the exception (throwable) to log

warn	back to summary
public void warn(String msg) Log a message at the WARN level. Parameters msg:String the message string to be logged

warn

back to summary

public void warn(String msg)

Log a message at the WARN level.

Parameters

msg:String: the message string to be logged

warn back to summary

warn	back to summary
public void warn(String format, Object... arguments) Log a message at the WARN level according to the specified format and arguments. This form avoids superfluous string concatenation when the logger is disabled for the WARN level. However, this variant incurs the hidden (and relatively small) cost of creating an `Object[]` before invoking the method, even if this logger is disabled for WARN. Parameters format:String the format string arguments:Object[] a list of 3 or more arguments

public void warn(String format, Object... arguments)

Log a message at the WARN level according to the specified format and arguments.

This form avoids superfluous string concatenation when the logger is disabled for the WARN level. However, this variant incurs the hidden (and relatively small) cost of creating an Object[] before invoking the method, even if this logger is disabled for WARN.

Parameters

format:String: the format string
arguments:Object[]: a list of 3 or more arguments

warn	back to summary
public void warn(String msg, Throwable t) Log an exception (throwable) at the WARN level with an accompanying message. Parameters msg:String the message accompanying the exception t:Throwable the exception (throwable) to log

warn

back to summary

public void warn(String msg, Throwable t)

Log an exception (throwable) at the WARN level with an accompanying message.

Parameters

msg:String: the message accompanying the exception
t:Throwable: the exception (throwable) to log

warnOrDebug back to summary

warnOrDebug	back to summary
public default void warnOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier) Convenience method to log a message that is different according to the log level. In priority, DEBUG level is used if `isDebugEnabled()`. Otherwise, WARN level is used (unless `isWarnEnabled()` is false). This can be used to log different level of details according to the active log level. Parameters messageSupplier:Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for WARN level See Also `warn(String)`

public default void warnOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier)

Convenience method to log a message that is different according to the log level. In priority, DEBUG level is used if isDebugEnabled(). Otherwise, WARN level is used (unless isWarnEnabled() is false).

This can be used to log different level of details according to the active log level.

Parameters

messageSupplier:Logger.ChoiceOfMessageSupplier: the ChoiceOfMessageSupplier invoked in priority with true for the DEBUG level message, or false for WARN level

See Also

warn(String)

warnOrDebug back to summary

warnOrDebug	back to summary
public default void warnOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier, Throwable cause) Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level. In priority, DEBUG level is used if `isDebugEnabled()`. Otherwise, WARN level is used (unless `isWarnEnabled()` is false). This can be used to log different level of details according to the active log level. Parameters messageSupplier:Logger.ChoiceOfMessageSupplier the `ChoiceOfMessageSupplier` invoked in priority with `true` for the DEBUG level message, or `false` for WARN level cause:Throwable the `Throwable` the original exception to be logged See Also `warn(String, Throwable)`

public default void warnOrDebug(Logger.ChoiceOfMessageSupplier messageSupplier, Throwable cause)

Convenience method to log an exception (throwable), with an accompanying message that is different according to the log level. In priority, DEBUG level is used if isDebugEnabled(). Otherwise, WARN level is used (unless isWarnEnabled() is false).

This can be used to log different level of details according to the active log level.

Parameters

messageSupplier:Logger.ChoiceOfMessageSupplier: the ChoiceOfMessageSupplier invoked in priority with true for the DEBUG level message, or false for WARN level
cause:Throwable: the Throwable the original exception to be logged

See Also

warn(String, Throwable)

public Interface Logger

Nested and Inner Type Summary

Method Summary

Method Detail

public Interface Logger.ChoiceOfMessageSupplier

Method Summary

Method Detail