com.emc.rest.smart

Class LoadBalancer

java.lang.Object

com.emc.rest.smart.LoadBalancer

public class LoadBalancer
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
LoadBalancer(java.util.List<Host> initialHosts)

Method Summary

Modifier and Type	Method and Description
java.util.List<Host>	getAllHosts() Returns a list of all known hosts.
HostStats[]	getHostStats() Returns stats for all active hosts in this load balancer
long	getOpenConnections()
Host	getTopHost(java.util.Map<java.lang.String,java.lang.Object> requestProperties) Returns the host with the lowest response index.
long	getTotalConnections()
long	getTotalErrors()
java.util.List<HostVetoRule>	getVetoRules()
void	resetStats() Resets connection metrics.
void	setVetoRules(java.util.List<HostVetoRule> vetoRules)
protected boolean	shouldVeto(Host host, java.util.Map<java.lang.String,java.lang.Object> requestProperties)
protected void	updateHosts(java.util.List<Host> updatedHosts) Ensure this method is called sparingly as it will block getTopHost() calls, pausing all new connections!
LoadBalancer	withVetoRules(HostVetoRule... vetoRules)

Methods inherited from class java.lang.Object

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

Constructor Detail

LoadBalancer

public LoadBalancer(java.util.List<Host> initialHosts)

Method Detail

getTopHost

public Host getTopHost(java.util.Map<java.lang.String,java.lang.Object> requestProperties)

Returns the host with the lowest response index.

shouldVeto

protected boolean shouldVeto(Host host,
                             java.util.Map<java.lang.String,java.lang.Object> requestProperties)

getAllHosts

public java.util.List<Host> getAllHosts()

Returns a list of all known hosts. This list is a clone; modification will not affect the load balancer

getHostStats

public HostStats[] getHostStats()

Returns stats for all active hosts in this load balancer

resetStats

public void resetStats()

Resets connection metrics. Use with care!

getTotalConnections

public long getTotalConnections()

getTotalErrors

public long getTotalErrors()

getOpenConnections

public long getOpenConnections()

updateHosts

protected void updateHosts(java.util.List<Host> updatedHosts)
                    throws java.lang.Exception

Ensure this method is called sparingly as it will block getTopHost() calls, pausing all new connections!

Throws:

java.lang.Exception

getVetoRules

public java.util.List<HostVetoRule> getVetoRules()

setVetoRules

public void setVetoRules(java.util.List<HostVetoRule> vetoRules)

withVetoRules

public LoadBalancer withVetoRules(HostVetoRule... vetoRules)