com.cisco.oss.foundation.loadbalancer

Class InternalServerProxy

java.lang.Object

com.cisco.oss.foundation.loadbalancer.InternalServerProxy

public class InternalServerProxy
extends Object

This class represents an Internal Server. The server can be of different types of implementations depending on the channel used. Example list of possible channels: UDP, RMI, HTTP etc.

Author:

Yair Ogen

Constructor Summary

Constructors

Constructor and Description
InternalServerProxy(long waitingTime, String clientName) InternalServer ctor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	activate() re activate the server if it is down.
boolean	equals(Object o)
int	getCurrentNumberOfAttempts() get the number of times the server was invoked until now.
long	getFailedAttemptTimeStamp() get the time stamp for the last time a failure occurred while activating the server.
String	getHost() get the host of this instance server.
int	getMaxNumberOfAttempts() get the number of times to retry invoking a server before it is passivated.
Integer	getPort() get the port of this instance server.
AtomicBoolean	getReactivated()
long	getRetryDelay() get the delay period in milliseconds between attempts of re-invoking a failing server.
int	hashCode()
boolean	isActive() get the active state flag, with out any logic (opposite to activate())
void	passivate() passivate the server causing it to be inactive.
void	processFailureAttempt() process actions when an attempt to access server has failed.
void	setCurrentNumberOfAttempts(int currentNumberOfAttempts) set the number of times the server was invoked until now.
void	setFailedAttemptTimeStamp(long failedAttemptTimeStamp) set the time stamp for the last time a failure occurred while activating the server.
void	setHost(String host) set the host of this instance server.
void	setMaxNumberOfAttempts(int numberOfRetries) set the maximum number of times to retry invoking a server before it is passivated.
void	setPort(Integer port) set the port of this instance server.
void	setRetryDelay(long retryDelay) set the delay period in milliseconds between attempts of re-invoking a failing server.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

InternalServerProxy

public InternalServerProxy(long waitingTime,
                   String clientName)

InternalServer ctor.

Parameters:

waitingTime - - the time to wait while inactive before re activating.

clientName -

Method Detail

passivate

public void passivate()

passivate the server causing it to be inactive.

activate

public boolean activate()

re activate the server if it is down. If the current time is bigger than the time the server was passivated plus the waiting time the server will be activated.

Returns:

true if activated.

getFailedAttemptTimeStamp

public long getFailedAttemptTimeStamp()

get the time stamp for the last time a failure occurred while activating the server.

Returns:

the time stamp for the last time a failure occurred while activating the server.

setFailedAttemptTimeStamp

public void setFailedAttemptTimeStamp(long failedAttemptTimeStamp)

set the time stamp for the last time a failure occurred while activating the server.

Parameters:

failedAttemptTimeStamp - the time stamp for the last time a failure occurred while activating the server.

getMaxNumberOfAttempts

public int getMaxNumberOfAttempts()

get the number of times to retry invoking a server before it is passivated.

Returns:

the number of times to retry invoking a server before it is passivated.

setMaxNumberOfAttempts

public void setMaxNumberOfAttempts(int numberOfRetries)

set the maximum number of times to retry invoking a server before it is passivated.

Parameters:

numberOfRetries - the number of times to retry invoking a server before it is passivated.

getRetryDelay

public long getRetryDelay()

get the delay period in milliseconds between attempts of re-invoking a failing server.

Returns:

the delay period in milliseconds between attempts of re-invoking a failing server.

setRetryDelay

public void setRetryDelay(long retryDelay)

set the delay period in milliseconds between attempts of re-invoking a failing server.

Parameters:

retryDelay - the delay period in milliseconds between attempts of re-invoking a failing server.

getCurrentNumberOfAttempts

public int getCurrentNumberOfAttempts()

get the number of times the server was invoked until now.

Returns:

the number of times the server was invoked until now.

setCurrentNumberOfAttempts

public void setCurrentNumberOfAttempts(int currentNumberOfAttempts)

set the number of times the server was invoked until now.

Parameters:

currentNumberOfAttempts - the number of times the server was invoked until now.

isActive

public boolean isActive()

get the active state flag, with out any logic (opposite to activate())

Returns:

the active state flag, with out any logic (opposite to activate())

processFailureAttempt

public void processFailureAttempt()

process actions when an attempt to access server has failed. increment the current amount of retries and update the last failure time stamp.

getHost

public String getHost()

get the host of this instance server.

Returns:

the host of this instance server.

setHost

public void setHost(String host)

set the host of this instance server.

Parameters:

host - the host of this instance server.

getPort

public Integer getPort()

get the port of this instance server.

Returns:

the port of this instance server.

setPort

public void setPort(Integer port)

set the port of this instance server.

Parameters:

port - the port of this instance server.

getReactivated

public AtomicBoolean getReactivated()

Returns:

the reactivated

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object