weblogic.management.configuration
Interface LogFileMBean

All Superinterfaces:

ConfigurationMBean

All Known Subinterfaces:

JMSMessageLogFileMBean, WebServerLogMBean

public interface LogFileMBean
extends ConfigurationMBean

Configures the location, file-rotation criteria, and number of files that a WebLogic Server uses to store log messages. The methods in this class configure both server and domain log files.

Deprecation of MBeanHome and Type-Safe Interfaces

This is a type-safe interface for a WebLogic Server MBean, which you can import into your client classes and access through weblogic.management.MBeanHome. As of 9.0, the MBeanHome interface and all type-safe interfaces for WebLogic Server MBeans are deprecated. Instead, client classes that interact with WebLogic Server MBeans should use standard JMX design patterns in which clients use the javax.management.MBeanServerConnection interface to discover MBeans, attributes, and attribute types at runtime. For more information, see "Developing Manageable Applications with JMX."

SIZE

static final String SIZE

Rotation based on file size.

See Also:

Constant Field Values

TIME

static final String TIME

Rotation based on elapsed time.

See Also:

Constant Field Values

NONE

static final String NONE

No log file rotation. Note that WebLogic Server sets a threshold size limit of 500 MB before it forces a hard rotation to prevent excessive log file growth.

See Also:

Constant Field Values

TIME_FORMAT

static final String TIME_FORMAT

The format string for the rotation start time.

See Also:

Constant Field Values

DEFAULT_FILE_NAME

static final String DEFAULT_FILE_NAME

The default value for the log file name.

See Also:

Constant Field Values

MAX_ROTATED_FILES

static final int MAX_ROTATED_FILES

The maximum number that you can specify for FileCount.

See Also:

Constant Field Values

getDateFormatPattern

String getDateFormatPattern()

The date format pattern used for rendering dates in the log. The DateFormatPattern string conforms to the specification of the java.text.SimpleDateFormat class.

This method can NOT set a null value.

This method can NOT set a value of zero length.

setDateFormatPattern

void setDateFormatPattern(String dateFormat)

getFileName

String getFileName()

The name of the file that stores current log messages. Usually it is a computed value based on the name of the parent of this MBean. For example, for a server log, it is SERVER_NAME.log.

However, if the name of the parent cannot be obtained, the file name is weblogic.log. If you specify a relative pathname, it is interpreted as relative to the server's root directory.

To include a time and date stamp in the file name when the log file is rotated, add java.text.SimpleDateFormat variables to the file name. Surround each variable with percentage (%) characters.

For example, if the file name is defined to be myserver_%yyyy%_%MM%_%dd%_%hh%_%mm%.log, the log file will be named myserver_yyyy_mm_dd_hh_mm.log.

When the log file is rotated, the rotated file name contains the date stamp. For example, if the log file is rotated for the first time on 2 April, 2003 at 10:05 AM, the log file that contains the old messages will be named myserver_2003_04_02_10_05.log00001.

If you do not include a time and date stamp, the rotated log files are numbered in order of creation. For example, myserver.log00007.

Returns:

The fileName value

setFileName

void setFileName(String fileName)
                 throws InvalidAttributeValueException

Sets the name of the file that stores current log messages.

Parameters:

fileName - The new fileName value

Throws:

InvalidAttributeValueException

See Also:

LogFileMBean.getFileName(), MachineMBean

getRotationType

String getRotationType()

Criteria for moving old log messages to a separate file.

• NONE Messages accumulate in a single file. You must erase the contents of the file when the size is too large. Note that WebLogic Server sets a threshold size limit of 500 MB before it forces a hard rotation to prevent excessive log file growth.
• SIZE When the log file reaches the size that you specify in FileMinSize, the server renames the file as SERVER_NAME.lognnnnn.
• TIME At each time interval that you specify in TimeSpan, the server renames the file as SERVER_NAME.lognnnnn.

After the server renames a file, subsequent messages accumulate in a new file with the name that you specified as the log file name.

Returns:

LogFileMBean.SIZE, LogFileMBean.TIME or LogFileMBean.NONE.

Default Value:

LogFileMBean.SIZE

setRotationType

void setRotationType(String rotationType)
                     throws InvalidAttributeValueException

Sets the value of the RotationType attribute.

Parameters:

rotationType - SIZE, TIME or NONE.

Throws:

InvalidAttributeValueException

See Also:

LogFileMBean.getRotationType()

Default Value:

LogFileMBean.SIZE

Valid Values:

LogFileMBean.SIZE,LogFileMBean.TIME,LogFileMBean.NONE

setNumberOfFilesLimited

void setNumberOfFilesLimited(boolean value)
                             throws InvalidAttributeValueException,
                                    DistributedManagementException

Sets the value of the NumberOfFilesLimited attribute.

Parameters:

value - The new numberOfFilesLimited value

Throws:

InvalidAttributeValueException

DistributedManagementException

See Also:

LogFileMBean.isNumberOfFilesLimited()

isNumberOfFilesLimited

boolean isNumberOfFilesLimited()

Indicates whether to limit the number of log files that this server instance creates to store old messages. (Requires that you specify a file rotation type of SIZE or TIME.)

After the server reaches this limit, it deletes the oldest log file and creates a new log file with the latest suffix.

If you do not enable this option, the server creates new files indefinitely and you must clean up these files as you require.

Returns:

The numberOfFilesLimited value

See Also:

LogFileMBean.getRotationType()

Default Value:

true

Default value in production mode:

false

getFileCount

int getFileCount()

The maximum number of log files that the server creates when it rotates the log. This number does not include the file that the server uses to store current messages. (Requires that you enable Number of Files Limited.)

Returns:

The fileCount value

See Also:

LogFileMBean.isNumberOfFilesLimited()

Default Value:

7

setFileCount

void setFileCount(int numberOfFiles)
                  throws InvalidAttributeValueException,
                         DistributedManagementException

Sets the value of the FileCount attribute.

Parameters:

numberOfFiles - The new fileCount value

Throws:

InvalidAttributeValueException

DistributedManagementException

See Also:

LogFileMBean.getFileCount()

Maximum Value:

LogMBean.MAX_ROTATED_FILES

Minimum Value:

1

getFileTimeSpan

int getFileTimeSpan()

The interval (in hours) at which the server saves old log messages to another file. (Requires that you specify a file rotation type of TIME.)

Returns:

The fileTimeSpan value

See Also:

LogFileMBean.getRotationType()

Default Value:

24

getRotationTime

String getRotationTime()

Determines the start time (hour and minute) for a time-based rotation sequence.

At the time that this value specifies, the server renames the current log file. Thereafter, the server renames the log file at an interval that you specify in File Time Span.

Note that WebLogic Server sets a threshold size limit of 500 MB before it forces a hard rotation to prevent excessive log file growth.

Use the following format: H:mm, where

• H is Hour in day (0-23).
• mm is the minute in hour

Returns:

The rotationTime value

See Also:

LogFileMBean.getRotationType(), LogFileMBean.getFileTimeSpan()

setRotationTime

void setRotationTime(String when)
                     throws InvalidAttributeValueException

Sets the value of the RotationTime attribute.

Parameters:

when - The new rotationTime value

Throws:

InvalidAttributeValueException

See Also:

LogFileMBean.getRotationTime()

Default Value:

"00:00"

setFileTimeSpan

void setFileTimeSpan(int hours)
                     throws InvalidAttributeValueException,
                            DistributedManagementException

Sets the value of the FileTimeSpan attribute.

Parameters:

hours - The new fileTimeSpan value

Throws:

InvalidAttributeValueException

DistributedManagementException

See Also:

LogFileMBean.getFileTimeSpan()

Minimum Value:

1

setFileTimeSpanFactor

void setFileTimeSpanFactor(long factor)

getFileMinSize

int getFileMinSize()

The size (1 - 65535 kilobytes) that triggers the server to move log messages to a separate file. The default is 500 kilobytes. After the log file reaches the specified minimum size, the next time the server checks the file size, it will rename the current log file as SERVER_NAME.lognnnnn and create a new one to store subsequent messages. (Requires that you specify a file rotation type of Size.)

Returns:

The fileMinSize value

See Also:

LogFileMBean.getRotationType()

Default Value:

500

Default value in production mode:

5000

setFileMinSize

void setFileMinSize(int kBytes)
                    throws InvalidAttributeValueException,
                           DistributedManagementException

Sets the value of the FileMinSize attribute.

Parameters:

kBytes - The new fileMinSize value

Throws:

InvalidAttributeValueException

DistributedManagementException

See Also:

LogFileMBean.getFileMinSize()

Maximum Value:

65535

Minimum Value:

1

getRotateLogOnStartup

boolean getRotateLogOnStartup()

Specifies whether a server rotates its log file during its startup cycle. The default value in production mode is false.

Default Value:

true

Default value in production mode:

false

setRotateLogOnStartup

void setRotateLogOnStartup(boolean value)

Sets the value of the RotateLogOnStartup attribute.

getLogFileRotationDir

String getLogFileRotationDir()

The directory where the rotated log files will be stored. By default the rotated files are stored in the same directory where the log file is stored.

Returns:

setLogFileRotationDir

void setLogFileRotationDir(String dirPath)

Sets the value of the LogFileRotationDir attribute.

See Also:

LogFileMBean.getLogFileRotationDir()

getBufferSizeKB

int getBufferSizeKB()

Gets the underlying log buffer size in kilobytes

Default Value:

8

setBufferSizeKB

void setBufferSizeKB(int size)

Sets the underlying log buffer size in kilobytes