SessionTerminator (OGSA-DAI -- (c) International Business Machines Corporation, 2002-2006, The University of Edinburgh, 2002-2006)

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uk.org.ogsadai.sessions.impl
Class SessionTerminator

java.lang.Object
  |
  +--uk.org.ogsadai.sessions.impl.SessionTerminator

All Implemented Interfaces:: SessionListener

public class SessionTerminator
extends java.lang.Object
implements SessionListener

A session listener that starts an expiry timer whenever the session has no participants.

If the expiry time is reached, the session is automatically terminated and any subsequent attempts to join the session will result in a "no such session" error. If the expiry timer is running an a participant joins the session, the expiry timer will be cancelled, and a new timer will be created only when the session has no participants again. In other words, a session will not expire as long as it has one or more participants.

Author:: The OGSA-DAI Project Team

Field Summary
`private static?java.lang.String`	`COPYRIGHT_NOTICE` ???????????
`private static?DAILogger`	`LOG` ???????????
`private ?SessionManager`	`mManager` ???????????
`private ?boolean`	`mSessionAlive` ???????????
`private ?java.util.TimerTask`	`mTerminatorTask` ???????????
`private ?java.util.Timer`	`mTimer` ???????????

Constructor Summary
`SessionTerminator(SessionManager?manager)` ??????????Constructs a `SessionTerminator` that uses the specified session manager.

Method Summary
`private ?java.util.TimerTask`	`createTimerTask(InternalSession?session)` ??????????Creates a `TimerTask` that will terminate a session.
`?void`	`sessionCleanedUp(SessionEvent?event)` ??????????Invoked when a session is cleaned up during its termination.
`?void`	`sessionJoined(SessionEvent?event)` ??????????Invoked when a session participant joins a session.
`?void`	`sessionLeft(SessionEvent?event)` ??????????Invoked when a session participant leaves a session.
`private ?void`	`terminateSession(InternalSession?session)` ??????????Terminates the specified session and logs an error if one occurs.

Methods inherited from class java.lang.Object

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

Field Detail

COPYRIGHT_NOTICE

private static final java.lang.String COPYRIGHT_NOTICE

See Also:: Constant Field Values

LOG

private static final DAILogger LOG

mTimer

private final java.util.Timer mTimer

mTerminatorTask

private java.util.TimerTask mTerminatorTask

mManager

private final SessionManager mManager

mSessionAlive

private boolean mSessionAlive

Constructor Detail