LogWriter (Apache Geode 1.15.1)

Deprecated.
Please use Log4J2 instead.
```
@Deprecated
public interface LogWriter
```
Defines methods available to clients that want to write a log message to their GemFire distributed system log file.
Instances of this interface can be obtained by calling DistributedSystem.getLogWriter().
For any logged message the log file will contain:
- The message's level.
- The time the message was logged.
- The id of the thread that logged the message.
- The message itself which can be a string and/or an exception including the exception's stack trace.
A message always has a level. Logging levels are ordered. Enabling logging at a given level also enables logging at higher levels. The higher the level the more important and urgent the message.
The levels, in descending order, are:
- severe (highest value) is a message level indicating a serious failure. In general severe messages should describe events that are of considerable importance and which will prevent normal program execution. They should be reasonably intelligible to end users and to information managers.
- error In general error messages should describe events that are of considerable importance but will not prevent normal program execution. They should be reasonably intelligible to end users and to information managers. They are weaker than severe and stronger than warning.
- warning is a message level indicating a potential problem. In general warning messages should describe events that will be of interest to end users or information managers, or which indicate potential problems.
- info is a message level for informational messages. Typically info messages should be reasonably significant and should make sense to end users and system administrators.
- config is a message level for static configuration messages. config messages are intended to provide a variety of static configuration information, to assist in debugging problems that may be associated with particular configurations.
- fine is a message level providing tracing information. In general the fine level should be used for information that will be broadly interesting to developers. This level is for the lowest volume, and most important, tracing messages.
- finer indicates a fairly detailed tracing message. Logging calls for entering, returning, or throwing an exception are traced at the finer level.
- finest (lowest value) indicates a highly detailed tracing message. In general the finest level should be used for the most voluminous detailed tracing messages.
For each level methods exist that will request a message, at that level, to be logged. These methods are all named after their level.
For each level a method exists that returns a boolean indicating if messages at that level will currently be logged. The names of these methods are of the form: levelEnabled.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method and Description
`void`	`config(String message)` Deprecated. Writes a message to this writer.
`void`	`config(String message, Throwable throwable)` Deprecated. Writes both a message and exception to this writer.
`void`	`config(Throwable throwable)` Deprecated. Writes an exception to this writer.
`boolean`	`configEnabled()` Deprecated. Returns true if "config" log messages are enabled.
`LogWriterI18n`	`convertToLogWriterI18n()` Deprecated. A mechanism for accessing the abstraction layer used for internationalization.
`void`	`entering(String sourceClass, String sourceMethod)` Deprecated. Log a method entry.
`void`	`error(String message)` Deprecated. Writes a message to this writer.
`void`	`error(String message, Throwable throwable)` Deprecated. Writes both a message and exception to this writer.
`void`	`error(Throwable throwable)` Deprecated. Writes an exception to this writer.
`boolean`	`errorEnabled()` Deprecated. Returns true if "error" log messages are enabled.
`void`	`exiting(String sourceClass, String sourceMethod)` Deprecated. Log a method return.
`void`	`fine(String message)` Deprecated. Writes a message to this writer.
`void`	`fine(String message, Throwable throwable)` Deprecated. Writes both a message and exception to this writer.
`void`	`fine(Throwable throwable)` Deprecated. Writes an exception to this writer.
`boolean`	`fineEnabled()` Deprecated. Returns true if "fine" log messages are enabled.
`void`	`finer(String message)` Deprecated. Writes a message to this writer.
`void`	`finer(String message, Throwable throwable)` Deprecated. Writes both a message and exception to this writer.
`void`	`finer(Throwable throwable)` Deprecated. Writes an exception to this writer.
`boolean`	`finerEnabled()` Deprecated. Returns true if "finer" log messages are enabled.
`void`	`finest(String message)` Deprecated. Writes a message to this writer.
`void`	`finest(String message, Throwable throwable)` Deprecated. Writes both a message and exception to this writer.
`void`	`finest(Throwable throwable)` Deprecated. Writes an exception to this writer.
`boolean`	`finestEnabled()` Deprecated. Returns true if "finest" log messages are enabled.
`Handler`	`getHandler()` Deprecated. Returns a 1.4 logging handler that can be used to direct application output to this GemFire logger using the standard JDK logger APIs.
`void`	`info(String message)` Deprecated. Writes a message to this writer.
`void`	`info(String message, Throwable throwable)` Deprecated. Writes both a message and exception to this writer.
`void`	`info(Throwable throwable)` Deprecated. Writes an exception to this writer.
`boolean`	`infoEnabled()` Deprecated. Returns true if "info" log messages are enabled.
`void`	`severe(String message)` Deprecated. Writes a message to this writer.
`void`	`severe(String message, Throwable throwable)` Deprecated. Writes both a message and exception to this writer.
`void`	`severe(Throwable throwable)` Deprecated. Writes an exception to this writer.
`boolean`	`severeEnabled()` Deprecated. Returns true if "severe" log messages are enabled.
`void`	`throwing(String sourceClass, String sourceMethod, Throwable thrown)` Deprecated. Log throwing an exception.
`void`	`warning(String message)` Deprecated. Writes a message to this writer.
`void`	`warning(String message, Throwable throwable)` Deprecated. Writes both a message and exception to this writer.
`void`	`warning(Throwable throwable)` Deprecated. Writes an exception to this writer.
`boolean`	`warningEnabled()` Deprecated. Returns true if "warning" log messages are enabled.

- Method Detail
  - severeEnabled
```
boolean severeEnabled()
```
    Deprecated.
    
    Returns true if "severe" log messages are enabled. Returns false if "severe" log messages are disabled.
    
    Returns:
    
    whether "severe" log messages are enabled
  - severe
```
void severe(String message,
            Throwable throwable)
```
    Deprecated.
    
    Writes both a message and exception to this writer. The message level is "severe".
    
    Parameters:
    
    message - the message to log
    
    throwable - the throwable to log
  - severe
```
void severe(String message)
```
    Deprecated.
    
    Writes a message to this writer. The message level is "severe".
    
    Parameters:
    
    message - the message to log
  - severe
```
void severe(Throwable throwable)
```
    Deprecated.
    
    Writes an exception to this writer. The exception level is "severe".
    
    Parameters:
    
    throwable - the throwable to log
  - errorEnabled
```
boolean errorEnabled()
```
    Deprecated.
    
    Returns true if "error" log messages are enabled. Returns false if "error" log messages are disabled.
    
    Returns:
    
    whether "error" log messages are enabled
  - error
```
void error(String message,
           Throwable throwable)
```
    Deprecated.
    
    Writes both a message and exception to this writer. The message level is "error".
    
    Parameters:
    
    message - the message to log
    
    throwable - the throwable to log
  - error
```
void error(String message)
```
    Deprecated.
    
    Writes a message to this writer. The message level is "error".
    
    Parameters:
    
    message - the message to log
  - error
```
void error(Throwable throwable)
```
    Deprecated.
    
    Writes an exception to this writer. The exception level is "error".
    
    Parameters:
    
    throwable - the throwable to log
  - warningEnabled
```
boolean warningEnabled()
```
    Deprecated.
    
    Returns true if "warning" log messages are enabled. Returns false if "warning" log messages are disabled.
    
    Returns:
    
    whether "warning" log messages are enabled
  - warning
```
void warning(String message,
             Throwable throwable)
```
    Deprecated.
    
    Writes both a message and exception to this writer. The message level is "warning".
    
    Parameters:
    
    message - the message to log
    
    throwable - the throwable to log
  - warning
```
void warning(String message)
```
    Deprecated.
    
    Writes a message to this writer. The message level is "warning".
    
    Parameters:
    
    message - the message to log
  - warning
```
void warning(Throwable throwable)
```
    Deprecated.
    
    Writes an exception to this writer. The exception level is "warning".
    
    Parameters:
    
    throwable - the throwable to log
  - infoEnabled
```
boolean infoEnabled()
```
    Deprecated.
    
    Returns true if "info" log messages are enabled. Returns false if "info" log messages are disabled.
    
    Returns:
    
    whether "info" log messages are enabled
  - info
```
void info(String message,
          Throwable throwable)
```
    Deprecated.
    
    Writes both a message and exception to this writer. The message level is "information".
    
    Parameters:
    
    message - the message to log
    
    throwable - the throwable to log
  - info
```
void info(String message)
```
    Deprecated.
    
    Writes a message to this writer. The message level is "information".
    
    Parameters:
    
    message - the message to log
  - info
```
void info(Throwable throwable)
```
    Deprecated.
    
    Writes an exception to this writer. The exception level is "information".
    
    Parameters:
    
    throwable - the throwable to log
  - configEnabled
```
boolean configEnabled()
```
    Deprecated.
    
    Returns true if "config" log messages are enabled. Returns false if "config" log messages are disabled.
    
    Returns:
    
    whether "config" log messages are enabled
  - config
```
void config(String message,
            Throwable throwable)
```
    Deprecated.
    
    Writes both a message and exception to this writer. The message level is "config".
    
    Parameters:
    
    message - the message to log
    
    throwable - the throwable to log
  - config
```
void config(String message)
```
    Deprecated.
    
    Writes a message to this writer. The message level is "config".
    
    Parameters:
    
    message - the message to log
  - config
```
void config(Throwable throwable)
```
    Deprecated.
    
    Writes an exception to this writer. The exception level is "config".
    
    Parameters:
    
    throwable - the throwable to log
  - fineEnabled
```
boolean fineEnabled()
```
    Deprecated.
    
    Returns true if "fine" log messages are enabled. Returns false if "fine" log messages are disabled.
    
    Returns:
    
    whether "fine" log message are enabled
  - fine
```
void fine(String message,
          Throwable throwable)
```
    Deprecated.
    
    Writes both a message and exception to this writer. The message level is "fine".
    
    Parameters:
    
    message - the message to log
    
    throwable - the throwable to log
  - fine
```
void fine(String message)
```
    Deprecated.
    
    Writes a message to this writer. The message level is "fine".
    
    Parameters:
    
    message - the message to log
  - fine
```
void fine(Throwable throwable)
```
    Deprecated.
    
    Writes an exception to this writer. The exception level is "fine".
    
    Parameters:
    
    throwable - the throwable to log
  - finerEnabled
```
boolean finerEnabled()
```
    Deprecated.
    
    Returns true if "finer" log messages are enabled. Returns false if "finer" log messages are disabled.
    
    Returns:
    
    whether "finer" log messages are enabled
  - finer
```
void finer(String message,
           Throwable throwable)
```
    Deprecated.
    
    Writes both a message and exception to this writer. The message level is "finer".
    
    Parameters:
    
    message - the message to log
    
    throwable - the throwable to log
  - finer
```
void finer(String message)
```
    Deprecated.
    
    Writes a message to this writer. The message level is "finer".
    
    Parameters:
    
    message - the message to log
  - finer
```
void finer(Throwable throwable)
```
    Deprecated.
    
    Writes an exception to this writer. The exception level is "finer".
    
    Parameters:
    
    throwable - the throwable to log
  - entering
```
void entering(String sourceClass,
              String sourceMethod)
```
    Deprecated.
    
    Log a method entry.
    The logging is done using the finer level. The string message will start with "ENTRY" and include the class and method names.
    
    Parameters:
    
    sourceClass - Name of class that issued the logging request.
    
    sourceMethod - Name of the method that issued the logging request.
  - exiting
```
void exiting(String sourceClass,
             String sourceMethod)
```
    Deprecated.
    
    Log a method return.
    The logging is done using the finer level. The string message will start with "RETURN" and include the class and method names.
    
    Parameters:
    
    sourceClass - Name of class that issued the logging request.
    
    sourceMethod - Name of the method that issued the logging request.
  - throwing
```
void throwing(String sourceClass,
              String sourceMethod,
              Throwable thrown)
```
    Deprecated.
    
    Log throwing an exception.
    Use to log that a method is terminating by throwing an exception. The logging is done using the finer level.
    This is a convenience method that could be done instead by calling finer(String, Throwable). The string message will start with "THROW" and include the class and method names.
    
    Parameters:
    
    sourceClass - Name of class that issued the logging request.
    
    sourceMethod - Name of the method that issued the logging request.
    
    thrown - The Throwable that is being thrown.
  - finestEnabled
```
boolean finestEnabled()
```
    Deprecated.
    
    Returns true if "finest" log messages are enabled. Returns false if "finest" log messages are disabled.
    
    Returns:
    
    whether "finest" leg messages are enabled
  - finest
```
void finest(String message,
            Throwable throwable)
```
    Deprecated.
    
    Writes both a message and exception to this writer. The message level is "finest".
    
    Parameters:
    
    message - the message to log
    
    throwable - the throwable to log
  - finest
```
void finest(String message)
```
    Deprecated.
    
    Writes a message to this writer. The message level is "finest".
    
    Parameters:
    
    message - the message to log
  - finest
```
void finest(Throwable throwable)
```
    Deprecated.
    
    Writes an exception to this writer. The exception level is "finest".
    
    Parameters:
    
    throwable - the throwable to log
  - getHandler
```
Handler getHandler()
```
    Deprecated.
    
    Returns a 1.4 logging handler that can be used to direct application output to this GemFire logger using the standard JDK logger APIs. Each time this method is called it creates a new instance of a Handler so care should be taken to not call this method too often.
    
    Returns:
    
    a 1.4 logging handler
  - convertToLogWriterI18n
```
LogWriterI18n convertToLogWriterI18n()
```
    Deprecated.
    
    A mechanism for accessing the abstraction layer used for internationalization.
    
    Returns:
    
    a LogWriterI18n

Interface LogWriter

Method Summary

Method Detail

severeEnabled

severe

severe

severe

errorEnabled

error

error

error

warningEnabled

warning

warning

warning

infoEnabled

info

info

info

configEnabled

config

config

config

fineEnabled

fine

fine

fine

finerEnabled

finer

finer

finer

entering

exiting

throwing

finestEnabled

finest

finest

finest

getHandler

convertToLogWriterI18n