Package org.eclipse.jetty.server

Class ConnectionLimit

java.lang.Object

org.eclipse.jetty.util.component.AbstractLifeCycle

org.eclipse.jetty.server.ConnectionLimit

All Implemented Interfaces:

java.util.EventListener, Connection.Listener, SelectorManager.AcceptListener, org.eclipse.jetty.util.component.LifeCycle

@ManagedObject
public class ConnectionLimit
extends org.eclipse.jetty.util.component.AbstractLifeCycle
implements Connection.Listener, SelectorManager.AcceptListener

A Listener that limits the number of Connections.

This listener applies a limit to the number of connections, which when exceeded results in a call to AbstractConnector.setAccepting(boolean) to prevent further connections being received. It can be applied to an entire server or to a specific connector by adding it via Container.addBean(Object)

Usage:

   Server server = new Server();
   server.addBean(new ConnectionLimit(5000,server));
   ...
   server.start();
 

See Also:

LowResourceMonitor, Connection.Listener, SelectorManager.AcceptListener

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

org.eclipse.jetty.util.component.AbstractLifeCycle.AbstractLifeCycleListener

Nested classes/interfaces inherited from interface org.eclipse.jetty.io.Connection.Listener

Connection.Listener.Adapter

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.LifeCycle

org.eclipse.jetty.util.component.LifeCycle.Listener

Field Summary

Fields inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

FAILED, RUNNING, STARTED, STARTING, STOPPED, STOPPING

Constructor Summary

Constructors

Constructor	Description
ConnectionLimit(int maxConnections, Connector... connectors)
ConnectionLimit(int maxConnections, Server server)

Method Summary

Modifier and Type	Method	Description
protected void	check()
protected void	doStart()
protected void	doStop()
int	getConnections()
long	getIdleTimeout()
int	getMaxConnections()
protected void	limit()
void	onAccepted(java.nio.channels.SelectableChannel channel)
void	onAcceptFailed(java.nio.channels.SelectableChannel channel, java.lang.Throwable cause)
void	onAccepting(java.nio.channels.SelectableChannel channel)
void	onClosed(Connection connection)
void	onOpened(Connection connection)
void	setIdleTimeout(long idleTimeout)
void	setMaxConnections(int max)
protected void	unlimit()

Methods inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

addLifeCycleListener, getState, getState, getStopTimeout, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, setStopTimeout, start, stop, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ConnectionLimit

public ConnectionLimit(@Name("maxConnections")
                       int maxConnections,
                       @Name("server")
                       Server server)

ConnectionLimit

public ConnectionLimit(@Name("maxConnections")
                       int maxConnections,
                       @Name("connectors")
                       Connector... connectors)

Method Detail

getIdleTimeout

@ManagedAttribute("The endpoint idle timeout in ms to apply when the connection limit is reached")
public long getIdleTimeout()

Returns:

If >= 0, the endpoint idle timeout in ms to apply when the connection limit is reached

setIdleTimeout

public void setIdleTimeout(long idleTimeout)

Parameters:

idleTimeout - If >= 0 the endpoint idle timeout in ms to apply when the connection limit is reached

getMaxConnections

@ManagedAttribute("The maximum number of connections allowed")
public int getMaxConnections()

setMaxConnections

public void setMaxConnections(int max)

getConnections

@ManagedAttribute("The current number of connections ")
public int getConnections()

doStart

protected void doStart()
                throws java.lang.Exception

Overrides:

doStart in class org.eclipse.jetty.util.component.AbstractLifeCycle

Throws:

java.lang.Exception

doStop

protected void doStop()
               throws java.lang.Exception

Overrides:

doStop in class org.eclipse.jetty.util.component.AbstractLifeCycle

Throws:

java.lang.Exception

check

protected void check()

limit

protected void limit()

unlimit

protected void unlimit()

onAccepting

public void onAccepting(java.nio.channels.SelectableChannel channel)

Specified by:

onAccepting in interface SelectorManager.AcceptListener

onAcceptFailed

public void onAcceptFailed(java.nio.channels.SelectableChannel channel,
                           java.lang.Throwable cause)

Specified by:

onAcceptFailed in interface SelectorManager.AcceptListener

onAccepted

public void onAccepted(java.nio.channels.SelectableChannel channel)

Specified by:

onAccepted in interface SelectorManager.AcceptListener

onOpened

public void onOpened(Connection connection)

Specified by:

onOpened in interface Connection.Listener

onClosed

public void onClosed(Connection connection)

Specified by:

onClosed in interface Connection.Listener