Class FileHandler
java.lang.Object
java.util.logging.Handler
org.apache.juli.FileHandler
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AsyncFileHandler
Implementation of Handler that appends log messages to a file named {prefix}{date}{suffix} in a configured
directory.
The following configuration properties are available:
directory- The directory where to create the log file. If the path is not absolute, it is relative to the current working directory of the application. The Apache Tomcat configuration files usually specify an absolute path for this property,${catalina.base}/logsDefault value:logsrotatable- Iftrue, the log file will be rotated on the first write past midnight and the filename will be{prefix}{date}{suffix}, where date is yyyy-MM-dd. Iffalse, the file will not be rotated and the filename will be{prefix}{suffix}. Default value:trueprefix- The leading part of the log file name. Default value:juli.suffix- The trailing part of the log file name. Default value:.logbufferSize- Configures buffering. The value of0uses system default buffering (typically an 8K buffer will be used). A value of<0forces a writer flush upon each log write. A value>0uses a BufferedOutputStream with the defined value but note that the system default buffering will also be applied. Default value:-1encoding- Character set used by the log file. Default value: empty string, which means to use the system default character set.level- The level threshold for this Handler. See thejava.util.logging.Levelclass for the possible levels. Default value:ALLfilter- Thejava.util.logging.Filterimplementation class name for this Handler. Default value: unsetformatter- Thejava.util.logging.Formatterimplementation class name for this Handler. Default value:org.apache.juli.OneLineFormattermaxDays- The maximum number of days to keep the log files. If the specified value is<=0then the log files will be kept on the file system forever, otherwise they will be kept the specified maximum days. Default value:-1.
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Nested Class Summary
Nested Classes -
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final intstatic final intprotected final ReadWriteLockLock used to control access to the writer. -
Constructor Summary
Constructors -
Method Summary
Methods inherited from class java.util.logging.Handler
getEncoding, getErrorManager, getFilter, getFormatter, getLevel, isLoggable, reportError, setEncoding, setErrorManager, setFilter, setFormatter, setLevel
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Field Details
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DEFAULT_MAX_DAYS
public static final int DEFAULT_MAX_DAYS- See Also:
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DEFAULT_BUFFER_SIZE
public static final int DEFAULT_BUFFER_SIZE- See Also:
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writerLock
Lock used to control access to the writer.
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Constructor Details
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FileHandler
public FileHandler() -
FileHandler
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FileHandler
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FileHandler
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Method Details
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publish
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close
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closeWriter
protected void closeWriter() -
flush
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open
protected void open()Open the new log file for the date specified bydate. -
openWriter
protected void openWriter()
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