Package org.cometd.server.ext
Class ActivityExtension
- java.lang.Object
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- org.cometd.server.ext.ActivityExtension
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- All Implemented Interfaces:
org.cometd.bayeux.server.BayeuxServer.Extension
public class ActivityExtension extends java.lang.Object implements org.cometd.bayeux.server.BayeuxServer.Extension
Monitors the activity of
ServerSession
s and disconnects them after a period of inactivity.The inactivity of a particular
ServerSession
is determined in two ways:- Only the client is inactive, that is the client only sends periodic
/meta/connect
messages but no other messages, while the server may send messages to the client; this is configured viaActivityExtension.Activity.CLIENT
- Both the client and the server are inactive, that is neither the client nor the server
send messages apart the periodic
/meta/connect
messages; this is configured viaActivityExtension.Activity.CLIENT_SERVER
When the inactivity exceeds a configurable
inactive period
, theServerSession
isdisconnected
.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
ActivityExtension.Activity
The possible activity to monitorstatic class
ActivityExtension.SessionExtension
Monitors the activity of a singleServerSession
, disconnecting it when the max inactivity period is exceeded.
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Constructor Summary
Constructors Constructor Description ActivityExtension(ActivityExtension.Activity activity, long maxInactivityPeriod)
Creates an ActivityExtension to be installed in theBayeuxServer
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ActivityExtension.Activity
getActivity()
long
getMaxInactivityPeriod()
protected org.cometd.bayeux.server.ServerSession.Extension
newSessionExtension(org.cometd.bayeux.server.ServerSession session, org.cometd.bayeux.server.ServerMessage handshake)
Creates a newServerSession.Extension
that monitors the activity of the givenServerSession
boolean
rcvMeta(org.cometd.bayeux.server.ServerSession session, org.cometd.bayeux.server.ServerMessage.Mutable message)
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Constructor Detail
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ActivityExtension
public ActivityExtension(ActivityExtension.Activity activity, long maxInactivityPeriod)
Creates an ActivityExtension to be installed in theBayeuxServer
- Parameters:
activity
- the activity to monitormaxInactivityPeriod
- the max inactivity period, in milliseconds
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Method Detail
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getActivity
public ActivityExtension.Activity getActivity()
- Returns:
- the activity that is being monitored by this extension
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getMaxInactivityPeriod
public long getMaxInactivityPeriod()
- Returns:
- the max inactivity period, in milliseconds
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rcvMeta
public boolean rcvMeta(org.cometd.bayeux.server.ServerSession session, org.cometd.bayeux.server.ServerMessage.Mutable message)
- Specified by:
rcvMeta
in interfaceorg.cometd.bayeux.server.BayeuxServer.Extension
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newSessionExtension
protected org.cometd.bayeux.server.ServerSession.Extension newSessionExtension(org.cometd.bayeux.server.ServerSession session, org.cometd.bayeux.server.ServerMessage handshake)
Creates a newServerSession.Extension
that monitors the activity of the givenServerSession
- Parameters:
session
- theServerSession
to monitorhandshake
- the handshake message- Returns:
- a new
ServerSession.Extension
that monitors theServerSession
activity
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