WarWatcher (Apache Tomcat 10.1.54 API Documentation)
Description: declaration: package: org.apache.catalina.ha.deploy, class: WarWatcher

# Class WarWatcher

java.lang.Object
org.apache.catalina.ha.deploy.WarWatcher

public class WarWatcher extends Object
The WarWatcher watches the deployDir for changes made to the directory (adding new WAR files->deploy or remove WAR files->undeploy) and notifies a listener of the changes made.

- ## Nested Class Summary

  Nested Classes
  Modifier and Type
  Class
  Description
  `protected static class`
  `WarWatcher.WarFilter`
  File name filter for war files
  `protected static class`
  `WarWatcher.WarInfo`
  File information on existing WAR files

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `protected final Map<String, WarWatcher.WarInfo>`
  `currentStatus`
  Currently deployed files
  `protected final FileChangeListener`
  `listener`
  Parent to be notified of changes
  `protected final File`
  `watchDir`
  Directory to watch for war files

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `WarWatcher(FileChangeListener listener, File watchDir)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `protected void`
  `addWarInfo(File warfile)`
  add cluster war to the watcher state
  `void`
  `check()`
  check for modification and send notification to listener
  `void`
  `clear()`
  clear watcher state

  ### Methods inherited from class Object

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

- ## Field Details

  - ### watchDir

    protected final File watchDir
    Directory to watch for war files

  - ### listener

    protected final FileChangeListener listener
    Parent to be notified of changes

  - ### currentStatus

    protected final Map<String, WarWatcher.WarInfo> currentStatus
    Currently deployed files

- ## Constructor Details

  - ### WarWatcher

    public WarWatcher(FileChangeListener listener, File watchDir)

- ## Method Details

  - ### check

    public void check()
    check for modification and send notification to listener

  - ### addWarInfo

    protected void addWarInfo(File warfile)
    add cluster war to the watcher state
    Parameters:
      `warfile` - The WAR to add

  - ### clear

    public void clear()
    clear watcher state