Package org.glassfish.grizzly.http.server.accesslog

Class RotatingFileAppender

java.lang.Object

org.glassfish.grizzly.http.server.accesslog.RotatingFileAppender

All Implemented Interfaces:

Closeable, AutoCloseable, AccessLogAppender

public class RotatingFileAppender
extends Object
implements AccessLogAppender

An appender writing log entries to Files, and rotating/archiving them when necessary.

Author:

Pier Fumagalli, USRZ.com

Constructor Summary

Constructors

Constructor	Description
RotatingFileAppender(File directory, String filePattern)	Create a RotatingFileAppender writing access log files in the specified directory and using the specified SimpleDateFormat pattern to generate file names.
RotatingFileAppender(File directory, String fileName, String archivePattern)	Create a RotatingFileAppender writing access log files in the specified directory.

Method Summary

Modifier and Type	Method	Description
void	append(String accessLogEntry)	Append the specified access log entry.
void	close()	Close any underlying resource owned by this appender.

Methods inherited from class java.lang.Object

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

Constructor Details

RotatingFileAppender

public RotatingFileAppender(File directory,
 String filePattern)
                     throws IOException

Create a RotatingFileAppender writing access log files in the specified directory and using the specified SimpleDateFormat pattern to generate file names.

For example when the specified pattern is 'access-'yyyyMMDDhh'.log' (note the quotes), access log files will be rotated on a hourly basis, and the output will be written to files like access-2013120422.log, access-2013120423.log, ... and so on.

Parameters:

directory - The directory where access log files will be written to.

filePattern - A properly escaped SimpleDateFormat pattern for the access log files.

Throws:

IOException - If an I/O error occurred accessing the filesystem.

RotatingFileAppender

public RotatingFileAppender(File directory,
 String fileName,
 String archivePattern)
                     throws IOException

Create a RotatingFileAppender writing access log files in the specified directory.

When using this constructor the current log file (the one being written to) will always be the one identified by the fileName parameter, and then archival of files will be delegated to the archive pattern.

For example when fileName is current.log and archivePattern is 'archive-'yyyyMMDD'.log' (note the quotes), access logs will be written to the current.log file and this file will be rotated on a daily basis to files like archive-20131204.log, archive-20131205.log, ... and so on.

Parameters:

directory - The directory where access log files will be written to.

fileName - A file name where log entries will be written to.

archivePattern - A properly escaped SimpleDateFormat pattern for the access log archive files.

Throws:

IOException - If an I/O error occurred accessing the filesystem.

Method Details

append

public void append(String accessLogEntry)
            throws IOException

Description copied from interface: AccessLogAppender

Append the specified access log entry.

Specified by:

append in interface AccessLogAppender

Parameters:

accessLogEntry - The String value of the data to be append in the access log.

Throws:

IOException - If an I/O error occurred appending to the log.

close

public void close()
           throws IOException

Description copied from interface: AccessLogAppender

Close any underlying resource owned by this appender.

Specified by:

close in interface AccessLogAppender

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException