ActivityListener (File Leak Detector 1.18 API)

java.lang.Object
- org.kohsuke.file_leak_detector.ActivityListener

```
public abstract class ActivityListener
extends Object
```
Allows user programs to receive callbacks for file open/close activities.
Instantiate this class and put it into LIST to start receiving callbacks. Listeners must be concurrent and re-entrant safe.

Author:

Michal Linhard (michal@linhard.sk), Kohsuke Kawaguchi

Field Summary

Fields
Modifier and Type Field Description

static List<ActivityListener> LIST
These listeners get called.

Constructor Summary

Constructors
Constructor Description

ActivityListener()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close(Object obj)`	Called when a file is closed.
`void`	`fd_open(Object obj)`
`void`	`open(Object obj, File file)`	Called when a new file is opened.
`void`	`open(Object obj, Path file)`
`void`	`openSocket(Object obj)`	Called when a new socket is opened.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - LIST
```
public static final List<ActivityListener> LIST
```
    These listeners get called.
- Constructor Detail
  - ActivityListener
```
public ActivityListener()
```
- Method Detail
  - open
```
public void open(Object obj,
                 File file)
```
    Called when a new file is opened.
    
    Parameters:
    
    obj - FileInputStream, FileOutputStream, RandomAccessFile, or ZipFile.
    
    file - File being opened.
  - open
```
public void open(Object obj,
                 Path file)
```
  - openSocket
```
public void openSocket(Object obj)
```
    Called when a new socket is opened.
    
    Parameters:
    
    obj - Socket, ServerSocket or SocketChannel
  - close
```
public void close(Object obj)
```
    Called when a file is closed. This method tolerates a double-close where a close method is called on an already closed object.
    
    Parameters:
    
    obj - FileInputStream, FileOutputStream, RandomAccessFile, Socket, ServerSocket, or ZipFile.
  - fd_open
```
public void fd_open(Object obj)
```