org.kohsuke.file_leak_detector

Class Listener

java.lang.Object

org.kohsuke.file_leak_detector.Listener

public class Listener
extends Object

Intercepted JDK calls land here.

Author:

Kohsuke Kawaguchi

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Listener.FileRecord Record of opened file.
static class	Listener.Record Remembers who/where/when opened a file.
static class	Listener.ServerSocketRecord Record of opened server socket.
static class	Listener.SocketChannelRecord Record of opened SocketChannel.
static class	Listener.SocketRecord Record of opened socket.

Field Summary

Fields

Modifier and Type	Field and Description
static PrintWriter	ERROR Trace the "too many open files" error here
static int	THRESHOLD If the table size grows beyond this, report the table
static PrintWriter	TRACE Trace the open/close op

Constructor Summary

Constructors

Constructor and Description
Listener()

Method Summary

Methods

Modifier and Type	Method and Description
static void	close(Object _this) Called when a file is closed.
static void	dump(OutputStream out) Dumps all files that are currently open.
static void	dump(Writer w)
static List<Listener.Record>	getCurrentOpenFiles()
static boolean	isAgentInstalled() Returns true if the leak detector agent is running.
static void	makeStrong()
static void	open(Object _this, File f) Called when a new file is opened.
static void	openSocket(Object _this) Called when a socket is opened.
static void	outOfDescriptors() Called when the system has too many open files.

Methods inherited from class java.lang.Object

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

Field Detail

TRACE

public static PrintWriter TRACE

Trace the open/close op

ERROR

public static PrintWriter ERROR

Trace the "too many open files" error here

THRESHOLD

public static int THRESHOLD

If the table size grows beyond this, report the table

Constructor Detail

Listener

public Listener()

Method Detail

isAgentInstalled

public static boolean isAgentInstalled()

Returns true if the leak detector agent is running.

makeStrong

public static void makeStrong()

open

public static void open(Object _this,
        File f)

Called when a new file is opened.

Parameters:

_this - FileInputStream, FileOutputStream, RandomAccessFile, or ZipFile.

f - File being opened.

openSocket

public static void openSocket(Object _this)

Called when a socket is opened.

getCurrentOpenFiles

public static List<Listener.Record> getCurrentOpenFiles()

close

public static void close(Object _this)

Called when a file is closed. This method tolerates a double-close where a close method is called on an already closed object.

Parameters:

_this - FileInputStream, FileOutputStream, RandomAccessFile, Socket, ServerSocket, or ZipFile.

dump

public static void dump(OutputStream out)

Dumps all files that are currently open.

dump

public static void dump(Writer w)

outOfDescriptors

public static void outOfDescriptors()

Called when the system has too many open files.