alluxio.util

Class LogUtils

java.lang.Object

alluxio.util.LogUtils

@ThreadSafe
public final class LogUtils
extends Object

Utility methods for working with log.

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_TRUNCATED_LENGTH The truncated length for a message line.

Method Summary

Modifier and Type	Method and Description
static LogInfo	setLogLevel(String logName, String level) Gets a logger's level with specify name, if the level argument is not null, it will set to specify level first.
static String	truncateMessageLineLength(Object message) Truncates each line of a message to a certain length.
static String	truncateMessageLineLength(Object message, int maxLineLength) Truncates each line of a message to a certain length.
static void	warnWithException(org.slf4j.Logger logger, String message, Object... args) Log a warning message with full exception if debug logging is enabled, or just the exception string otherwise.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_TRUNCATED_LENGTH

public static final int MAX_TRUNCATED_LENGTH

The truncated length for a message line.

See Also:

Constant Field Values

Method Detail

setLogLevel

public static LogInfo setLogLevel(String logName,
                                  String level)
                           throws IOException

Gets a logger's level with specify name, if the level argument is not null, it will set to specify level first.

Parameters:

logName - logger's name

level - logger's level

Returns:

an entity object about the log info

Throws:

IOException - if an I/O error occurs

warnWithException

public static void warnWithException(org.slf4j.Logger logger,
                                     String message,
                                     Object... args)

Log a warning message with full exception if debug logging is enabled, or just the exception string otherwise.

Parameters:

logger - the logger to be used

message - the message to be logged

args - the arguments for the message

truncateMessageLineLength

public static String truncateMessageLineLength(Object message)

Truncates each line of a message to a certain length.

Parameters:

message - the message to truncate the lines for

Returns:

the message, with lines truncated to length MAX_TRUNCATED_LENGTH

truncateMessageLineLength

public static String truncateMessageLineLength(Object message,
                                               int maxLineLength)

Truncates each line of a message to a certain length.

Parameters:

message - the message to truncate the lines for

maxLineLength - the maximum length of a message line

Returns:

the message, with lines truncated to the specified length