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Java Source Code / Java Documentation » Ajax » dwr » org.directwebremoting.impl 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.directwebremoting.impl.AbstractServerLoadMonitor
      org.directwebremoting.impl.ThreadDroppingServerLoadMonitor

ThreadDroppingServerLoadMonitor
public class ThreadDroppingServerLoadMonitor extends AbstractServerLoadMonitor implements ServerLoadMonitor(Code)
A smart implementation of ServerLoadMonitor, customized for Jetty. The ThreadDroppingServerLoadMonitor attempts to keep the hit rate down by increasing the disconnected time as usage increases.
author:
   Joe Walker [joe at getahead dot org]


Field Summary
final protected static  intSECONDS_MONITORED
     We are recording the number of hits in the last 5 seconds.
protected  intconnectedTime
     The time we are currently waiting before sending a browser away and asking it to reconnect.
protected  intdisconnectedTime
    
protected  HitMonitorhitMonitor
    
protected  intmaxHitsPerSecond
     Static configuration data: The max number of hits per second. We increase the poll time to compensate and reduce the load.


Method Summary
public  longgetConnectedTime()
    
public  intgetDisconnectedTime()
    
public  voidsetMaxHitsPerSecond(int maxHitsPerSecond)
    
public  booleansupportsStreaming()
    
public  voidthreadWaitEnding(WaitController controller)
    
public  voidthreadWaitStarting(WaitController controller)
    

Field Detail
SECONDS_MONITORED
final protected static int SECONDS_MONITORED(Code)
We are recording the number of hits in the last 5 seconds. Maybe we should think about making this configurable.



connectedTime
protected int connectedTime(Code)
The time we are currently waiting before sending a browser away and asking it to reconnect.



disconnectedTime
protected int disconnectedTime(Code)
How long are we telling users to wait before they come back next



hitMonitor
protected HitMonitor hitMonitor(Code)
Our record of the server loading



maxHitsPerSecond
protected int maxHitsPerSecond(Code)
Static configuration data: The max number of hits per second. We increase the poll time to compensate and reduce the load. If this number is not at least half maxWaitingThreads then the USAGE_HIGH mode will not exist and the system will sublime from USAGE_LOW to USAGE_DIGG





Method Detail
getConnectedTime
public long getConnectedTime()(Code)



getDisconnectedTime
public int getDisconnectedTime()(Code)



setMaxHitsPerSecond
public void setMaxHitsPerSecond(int maxHitsPerSecond)(Code)

Parameters:
  maxHitsPerSecond - the maxHitsPerSecond to set



supportsStreaming
public boolean supportsStreaming()(Code)



threadWaitEnding
public void threadWaitEnding(WaitController controller)(Code)



threadWaitStarting
public void threadWaitStarting(WaitController controller)(Code)



Fields inherited from org.directwebremoting.impl.AbstractServerLoadMonitor
final protected List<WaitController> waitControllers(Code)(Java Doc)

Methods inherited from org.directwebremoting.impl.AbstractServerLoadMonitor
public void shutdown()(Code)(Java Doc)
public void shutdownRandomWaitControllers(int count)(Code)(Java Doc)
public void threadWaitEnding(WaitController controller)(Code)(Java Doc)
public void threadWaitStarting(WaitController controller)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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