com.elegantj.common
Class ErrorLog

java.lang.Object
  |
  +--com.elegantj.common.ErrorLog

public class ErrorLog

extends java.lang.Object

ErrorLog writes the the errors in the Error Log File.
Each error has the following attributes.
(1) Error occurrence time
(2) Connection host name (IP address)
(3) Error information
·Error type (operation error / application error / DB error)
·Probable cause message
·SQL code
·SQL message
·Java stack trace

Field Summary

static int	APPLICATION_ERROR Specifies the error type constant
static int	DATABASE_ERROR Specifies the error type constant
static int	OPERATION_ERROR Specifies the error type constant

Constructor Summary

ErrorLog()

Method Summary

static java.io.PrintStream	getErrorStream() Gets ErrorStrem
static java.lang.String	getMessage(java.lang.Throwable t) Returns the message of root exception
static void	printApplicationError(java.lang.Throwable t) Sets Application error
static void	printApplicationError(java.lang.Throwable t, java.lang.String message) Sets Application error
static void	printDatabaseError(java.lang.Throwable t, int sqlCode, java.lang.String sqlMessage) Sets Database error
static void	printDatabaseError(java.lang.Throwable t, java.lang.String message, int sqlCode, java.lang.String sqlMessage) Sets Database error
static void	printError(java.lang.Throwable t) Print error to output stream
static void	printError(java.lang.Throwable t, int type) Print error to output stream
static void	printError(java.lang.Throwable t, int type, int sqlCode, java.lang.String sqlMessage) Print error to output stream
static void	printError(java.lang.Throwable t, int type, java.lang.String message) Print error to output stream
static void	printError(java.lang.Throwable t, int type, java.lang.String message, int sqlCode, java.lang.String sqlMessage) Print error to output stream
static void	printError(java.lang.Throwable t, java.lang.String message) Print error to output stream
static void	printMessage(java.lang.Object message) print message to ouput stream
static void	printMessage(java.lang.String message) print message to ouput stream
static void	printOperationError(java.lang.Throwable t) Sets Operation error
static void	printOperationError(java.lang.Throwable t, java.lang.String message) Sets Operation error
static void	setErrorStream(java.io.PrintStream errorStream) Sets ErrorStrem object

Methods inherited from class java.lang.Object

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

Field Detail

OPERATION_ERROR

public static final int OPERATION_ERROR

Specifies the error type constant

See Also:

Constant Field Values

APPLICATION_ERROR

public static final int APPLICATION_ERROR

Specifies the error type constant

See Also:

Constant Field Values

DATABASE_ERROR

public static final int DATABASE_ERROR

Specifies the error type constant

See Also:

Constant Field Values

Constructor Detail

ErrorLog

public ErrorLog()

Method Detail

setErrorStream

public static void setErrorStream(java.io.PrintStream errorStream)

Sets ErrorStrem object

Parameters:

errorStream - printStream object, error will be outputed on this stream

getErrorStream

public static java.io.PrintStream getErrorStream()

Gets ErrorStrem

Returns:

PrintStream printStream object

printOperationError

public static void printOperationError(java.lang.Throwable t)

Sets Operation error

Parameters:

t - Throwable object. It contains error description

printOperationError

public static void printOperationError(java.lang.Throwable t,
                                       java.lang.String message)

Sets Operation error

Parameters:

t - Throwable object. It contains error description.

message - error message

printApplicationError

public static void printApplicationError(java.lang.Throwable t)

Sets Application error

Parameters:

t - Throwable object. It contains error description

printApplicationError

public static void printApplicationError(java.lang.Throwable t,
                                         java.lang.String message)

Sets Application error

Parameters:

t - Throwable object. It contains error description

message - error message

printDatabaseError

public static void printDatabaseError(java.lang.Throwable t,
                                      int sqlCode,
                                      java.lang.String sqlMessage)

Sets Database error

Parameters:

t - Throwable object. It contains error description

sqlCode - sql code

sqlMessage - sql message

printDatabaseError

public static void printDatabaseError(java.lang.Throwable t,
                                      java.lang.String message,
                                      int sqlCode,
                                      java.lang.String sqlMessage)

Sets Database error

Parameters:

t - Throwable object. It contains error description

sqlCode - sql code

sqlMessage - sql message

message - message string

printError

public static void printError(java.lang.Throwable t)

Print error to output stream

Parameters:

t - Throwable object. It contains error description

printError

public static void printError(java.lang.Throwable t,
                              int type)

Print error to output stream

Parameters:

t - Throwable object. It contains error description

type - type of error

printError

public static void printError(java.lang.Throwable t,
                              java.lang.String message)

Print error to output stream

Parameters:

t - Throwable object. It contains error description

message - message string

printError

public static void printError(java.lang.Throwable t,
                              int type,
                              java.lang.String message)

Print error to output stream

Parameters:

t - Throwable object. It contains error description

type - error type

message - message string

printError

public static void printError(java.lang.Throwable t,
                              int type,
                              int sqlCode,
                              java.lang.String sqlMessage)

Print error to output stream

Parameters:

t - Throwable object. It contains error description

type - error type

sqlMessage - sql message

printError

public static void printError(java.lang.Throwable t,
                              int type,
                              java.lang.String message,
                              int sqlCode,
                              java.lang.String sqlMessage)

Print error to output stream

Parameters:

t - Throwable object. It contains error description

type - error type

sqlCode - sql Code

sqlMessage - sql message

message - message string

printMessage

public static void printMessage(java.lang.Object message)

print message to ouput stream

Parameters:

message - message string

printMessage

public static void printMessage(java.lang.String message)

print message to ouput stream

Parameters:

message - message string

getMessage

public static java.lang.String getMessage(java.lang.Throwable t)

Returns the message of root exception