Package overit.geocall.util.tracer

Class FileTracer

java.lang.Object

overit.geocall.util.tracer.FileTracer

All Implemented Interfaces:

Tracer

public class FileTracer
extends Object
implements Tracer

This class implements the interface class Tracer and creates an instance of the tracer. This tracer print in the file the records of the log.
The path of the file or the file passed as the first parameter of the constructor (see FileTracer(path,charset) and FileTracer(file,charset)).

Field Summary

Fields

Modifier and Type	Field	Description
protected int	_line
protected PrintWriter	_pw
protected final SimpleDateFormat	_sdf
protected long	_time

Constructor Summary

Constructors

Constructor	Description
FileTracer(File file, String charset)	Class constructor using the first parameter as file in which to print the log lines.
FileTracer(String file, String charset)	Class constructor using the first parameter to determine the path of the file in which to print the log lines.

Method Summary

Modifier and Type	Method	Description
void	finalize()	Override of the method Object.finalize() that recalls stop().
long	getTraceTime()	Return the time of the execution.
void	record(String name, Object val)	Adds a record of log to the file.
void	stop()	Method to call when the execution is finished.

Methods inherited from class java.lang.Object

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

Field Details

_pw

protected PrintWriter _pw

_line

protected int _line

_time

protected long _time

_sdf

protected final SimpleDateFormat _sdf

Constructor Details

FileTracer

public FileTracer(String file,
 String charset)

Class constructor using the first parameter to determine the path of the file in which to print the log lines.

Parameters:

file - Path of the file

charset - String rappresents the charset of the file.

FileTracer

public FileTracer(File file,
 String charset)

Class constructor using the first parameter as file in which to print the log lines.

Parameters:

file - Path of the file

charset - String rappresents the charset of the file.

Method Details

record

public void record(String name,
 Object val)

Adds a record of log to the file.

Specified by:

record in interface Tracer

Parameters:

name - String contains the name of the record to put in the registry.

val - The value to put in the registry.

stop

public void stop()

Method to call when the execution is finished. Takes care of calculating the execution time as a delta between the start and end processing time and to close the writing channel.

Specified by:

stop in interface Tracer

finalize

public void finalize()

Override of the method Object.finalize() that recalls stop(). It is used to close the writing channel when the object is garbaged.

Overrides:

finalize in class Object

getTraceTime

public long getTraceTime()

Return the time of the execution. If the stop() or Object.finalize() have not been called, the value returned will be 0.

Specified by:

getTraceTime in interface Tracer

Returns:

The time of the execution.