org.zoolu.tools
Class Log

java.lang.Object
  |
  +--org.zoolu.tools.Log

Direct Known Subclasses:

RotatingLog

public class Log

extends java.lang.Object

Class Log allows the printing of log messages onto standard output or files or any PrintStream.

Every Log has a verboselevel associated with it; any log request with loglevel less or equal to the verbose-level is logged.
Verbose level 0 indicates no log. The log levels should be greater than 0.

Parameter logname, if non-null, is used as log header (i.e. written at the begin of each log row).

Field Summary

static long

MAX_SIZE (static) Default maximum log file size (4MB)

Constructor Summary

Log(java.io.PrintStream out_stream, java.lang.String log_tag, int verbose_level)
Associates a new Log to the PrintStream outstream.

Log(java.lang.String file_name, java.lang.String log_tag, int verbose_level)
Associates a new Log to the file filename.

Log(java.lang.String file_name, java.lang.String log_tag, int verbose_level, long max_size)
Associates a new Log to the file filename.

Log(java.lang.String file_name, java.lang.String log_tag, int verbose_level, long max_size, boolean append)
Associates a new Log to the file filename.

Method Summary

void	close() Closes the log
protected Log	flush() Flushes
protected void	init(java.io.PrintStream out_stream, java.lang.String log_tag, int verbose_level, long max_size) Initializes the log
Log	print(java.lang.String message) Prints the log if the Log verbose_level is greater than 0
Log	print(java.lang.String message, int level) Prints the log if level isn't greater than the Log verbose_level
Log	printException(java.lang.Exception e) Logs the Exception.toString() and Exception.printStackTrace()
Log	printException(java.lang.Exception e, int level) Logs the Exception
Log	println(java.lang.String message) Prints the log if the Log verbose_level is greater than 0
Log	println(java.lang.String message, int level) Prints the log if level isn't greater than the Log verbose_level
Log	printPacketTimestamp(java.lang.String proto, java.lang.String remote_addr, int remote_port, int len, java.lang.String message, int level) Logs the packet timestamp

Methods inherited from class java.lang.Object

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

Field Detail

MAX_SIZE

public static final long MAX_SIZE

(static) Default maximum log file size (4MB)

Constructor Detail

Log

public Log(java.io.PrintStream out_stream,
           java.lang.String log_tag,
           int verbose_level)

Associates a new Log to the PrintStream outstream. Log size has no bound

Log

public Log(java.lang.String file_name,
           java.lang.String log_tag,
           int verbose_level)

Associates a new Log to the file filename. Log size is limited to the MAX_SIZE

Log

public Log(java.lang.String file_name,
           java.lang.String log_tag,
           int verbose_level,
           long max_size)

Associates a new Log to the file filename. Log size is limited to logsize [bytes]

Log

public Log(java.lang.String file_name,
           java.lang.String log_tag,
           int verbose_level,
           long max_size,
           boolean append)

Associates a new Log to the file filename. Log size is limited to logsize [bytes]

Method Detail

init

protected void init(java.io.PrintStream out_stream,
                    java.lang.String log_tag,
                    int verbose_level,
                    long max_size)

Initializes the log

flush

protected Log flush()

Flushes

close

public void close()

Closes the log

printException

public Log printException(java.lang.Exception e,
                          int level)

Logs the Exception

printException

public Log printException(java.lang.Exception e)

Logs the Exception.toString() and Exception.printStackTrace()

printPacketTimestamp

public Log printPacketTimestamp(java.lang.String proto,
                                java.lang.String remote_addr,
                                int remote_port,
                                int len,
                                java.lang.String message,
                                int level)

Logs the packet timestamp

println

public Log println(java.lang.String message,
                   int level)

Prints the log if level isn't greater than the Log verbose_level

println

public Log println(java.lang.String message)

Prints the log if the Log verbose_level is greater than 0

print

public Log print(java.lang.String message)

Prints the log if the Log verbose_level is greater than 0

print

public Log print(java.lang.String message,
                 int level)

Prints the log if level isn't greater than the Log verbose_level