Package com.netflix.discovery

Class AbstractAzToRegionMapper

java.lang.Object

com.netflix.discovery.AbstractAzToRegionMapper

All Implemented Interfaces:

AzToRegionMapper

Direct Known Subclasses:

DNSBasedAzToRegionMapper, PropertyBasedAzToRegionMapper

public abstract class AbstractAzToRegionMapper
extends java.lang.Object
implements AzToRegionMapper

Field Summary

Fields

Modifier and Type	Field	Description
protected EurekaClientConfig	clientConfig

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractAzToRegionMapper(EurekaClientConfig clientConfig)

Method Summary

Modifier and Type	Method	Description
java.lang.String	getRegionForAvailabilityZone(java.lang.String availabilityZone)	Returns the region for the passed availability zone.
protected abstract java.util.Set<java.lang.String>	getZonesForARegion(java.lang.String region)	Returns all the zones in the provided region.
protected java.lang.String	parseAzToGetRegion(java.lang.String availabilityZone)	Tries to determine what region we're in, based on the provided availability zone.
void	refreshMapping()	Updates the mappings it has if they depend on an external source.
void	setRegionsToFetch(java.lang.String[] regionsToFetch)	Update the regions that this mapper knows about.

Methods inherited from class java.lang.Object

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

Field Detail

clientConfig

protected final EurekaClientConfig clientConfig

Constructor Detail

AbstractAzToRegionMapper

protected AbstractAzToRegionMapper(EurekaClientConfig clientConfig)

Method Detail

setRegionsToFetch

public void setRegionsToFetch(java.lang.String[] regionsToFetch)

Description copied from interface: AzToRegionMapper

Update the regions that this mapper knows about.

Specified by:

setRegionsToFetch in interface AzToRegionMapper

Parameters:

regionsToFetch - Regions to fetch. This should be the super set of all regions that this mapper should know.

getZonesForARegion

protected abstract java.util.Set<java.lang.String> getZonesForARegion(java.lang.String region)

Returns all the zones in the provided region.

Parameters:

region - the region whose zones you want

Returns:

a set of zones

getRegionForAvailabilityZone

public java.lang.String getRegionForAvailabilityZone(java.lang.String availabilityZone)

Description copied from interface: AzToRegionMapper

Returns the region for the passed availability zone.

Specified by:

getRegionForAvailabilityZone in interface AzToRegionMapper

Parameters:

availabilityZone - Availability zone for which the region is to be retrieved.

Returns:

The region for the passed zone.

refreshMapping

public void refreshMapping()

Description copied from interface: AzToRegionMapper

Updates the mappings it has if they depend on an external source.

Specified by:

refreshMapping in interface AzToRegionMapper

parseAzToGetRegion

protected java.lang.String parseAzToGetRegion(java.lang.String availabilityZone)

Tries to determine what region we're in, based on the provided availability zone.

Parameters:

availabilityZone - the availability zone to inspect

Returns:

the region, if available; null otherwise