edu.vt.marian.server
Class log_manager

java.lang.Object
  |
  +--edu.vt.marian.server.log_manager

public class log_manager

extends java.lang.Object

class name: log_manager class description: this class manage the log data of the system. uses the services of class(es): designer(s): Jianxin Zhao (jxzhao@csgrad.cs.vt.edu) implementator(s): Ning Chai (nchai@csgrad.cs.vt.edu) finished time: Nov 30th, 1998 known bugs: JDK version: 1.1.5 side effects:

Field Summary

static int	ALREADY_EXIT
static int	INVALID_LEVEL
static int	LOGGING_LEVEL_TOO_LOW
static int	OK

Constructor Summary

log_manager(java.lang.String dir_name, edu.vt.marian.common.Debug debug)
method description: this constructor will create a log manager object from the specified directory uses the services of class(es): input parameter(s): file_name -- this directory contains all the configuration information for log manager, it's also the directory to write log data debug -- used for debugging output parameter(s): none return value: none synchronization: none

Method Summary

int	exit(java.lang.String condition) method description: this method will let this object exit smoothly, release resources it occupied andf kill threads it created.
int	get_logging_level() method description: this method will return the current logging level of this object.
int	set_logging_level(int level) method description: this method will set the logging level of this object, the higher the level, more detailed the logging uses the services of class(es): none input parameter(s): level -- this will be the new logging level of this log manager output parameter(s): none return value: OK -- the new level has been set ALREADY_EXIT -- the exit_flag is true INVALID_LEVEL -- the new level can't be set since the value is not supported yet synchronization: synchronized
int	write_log(int log_level, java.lang.String caller_desc, java.lang.String message) method description: this method will process the log data sent by the system uses the services of class(es): input parameter(s): log_level -- the log level of the data sent by source caller_desc -- specify the source send this message message -- the message sent by the source output parameter(s): none return value: OK -- the datd has been logged correctly ALREADY_EXIT -- the exit_flag is true LOGGING_LEVEL_TOO_LOW -- the system's logging_level is lower than requested logging level other --

Methods inherited from class java.lang.Object

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

Field Detail

OK

public static final int OK

ALREADY_EXIT

public static final int ALREADY_EXIT

INVALID_LEVEL

public static final int INVALID_LEVEL

LOGGING_LEVEL_TOO_LOW

public static final int LOGGING_LEVEL_TOO_LOW

Constructor Detail

log_manager

public log_manager(java.lang.String dir_name,
                   edu.vt.marian.common.Debug debug)

method description: this constructor will create a log manager object from the specified directory uses the services of class(es): input parameter(s): file_name -- this directory contains all the configuration information for log manager, it's also the directory to write log data debug -- used for debugging output parameter(s): none return value: none synchronization: none

Method Detail

set_logging_level

public int set_logging_level(int level)

method description: this method will set the logging level of this object, the higher the level, more detailed the logging uses the services of class(es): none input parameter(s): level -- this will be the new logging level of this log manager output parameter(s): none return value: OK -- the new level has been set ALREADY_EXIT -- the exit_flag is true INVALID_LEVEL -- the new level can't be set since the value is not supported yet synchronization: synchronized

get_logging_level

public int get_logging_level()

method description: this method will return the current logging level of this object. uses the services of class(es): none input parameter(s): none output parameter(s): none return value: an integer specifies the current logging level of this object synchronization: none

exit

public int exit(java.lang.String condition)

method description: this method will let this object exit smoothly, release resources it occupied andf kill threads it created. uses the services of class(es): input parameter(s): condition -- specifies the condition under which this method is called output parameter(s): none return value: OK -- the exit is smooth ALREADY_EXIT -- the exit_flag is true other -- synchronization: synchronized

write_log

public int write_log(int log_level,
                     java.lang.String caller_desc,
                     java.lang.String message)

method description: this method will process the log data sent by the system uses the services of class(es): input parameter(s): log_level -- the log level of the data sent by source caller_desc -- specify the source send this message message -- the message sent by the source output parameter(s): none return value: OK -- the datd has been logged correctly ALREADY_EXIT -- the exit_flag is true LOGGING_LEVEL_TOO_LOW -- the system's logging_level is lower than requested logging level other --