Package org.apache.cxf.clustering

Class AbstractStaticFailoverStrategy

java.lang.Object

org.apache.cxf.clustering.AbstractStaticFailoverStrategy

All Implemented Interfaces:

FailoverStrategy

Direct Known Subclasses:

RandomStrategy, SequentialStrategy

public abstract class AbstractStaticFailoverStrategy
extends Object
implements FailoverStrategy

Failover strategy based on a static cluster represented by multiple endpoints associated with the same service instance.

Constructor Summary

Constructors

Constructor	Description
AbstractStaticFailoverStrategy()

Method Summary

Modifier and Type	Method	Description
List<String>	getAlternateAddresses(Exchange exchange)	Get the alternate addresses for this invocation.
List<Endpoint>	getAlternateEndpoints(Exchange exchange)	Get the alternate endpoints for this invocation.
long	getDelayBetweenRetries()
protected List<Endpoint>	getEndpoints(Exchange exchange, boolean acceptCandidatesWithSameAddress)	Get the endpoints for this invocation.
protected Level	getLogLevel()	Get the log level for reporting the selection of the new alternative address or endpoint
protected abstract <T> T	getNextAlternate(List<T> alternates)	Get next alternate endpoint.
String	selectAlternateAddress(List<String> alternates)	Select one of the alternate addresses for a retried invocation.
Endpoint	selectAlternateEndpoint(List<Endpoint> alternates)	Select one of the alternate endpoints for a retried invocation.
void	setAlternateAddresses(List<String> alternateAddresses)
void	setDelayBetweenRetries(long delay)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractStaticFailoverStrategy

public AbstractStaticFailoverStrategy()

Method Detail

setDelayBetweenRetries

public void setDelayBetweenRetries(long delay)

getDelayBetweenRetries

public long getDelayBetweenRetries()

setAlternateAddresses

public void setAlternateAddresses(List<String> alternateAddresses)

getAlternateAddresses

public List<String> getAlternateAddresses(Exchange exchange)

Get the alternate addresses for this invocation.

Specified by:

getAlternateAddresses in interface FailoverStrategy

Parameters:

exchange - the current Exchange

Returns:

a List of alternate addresses if available

selectAlternateAddress

public String selectAlternateAddress(List<String> alternates)

Select one of the alternate addresses for a retried invocation.

Specified by:

selectAlternateAddress in interface FailoverStrategy

Parameters:

alternates - a List of alternate addresses if available

Returns:

the selected address or null if no alternate address is available

getAlternateEndpoints

public List<Endpoint> getAlternateEndpoints(Exchange exchange)

Get the alternate endpoints for this invocation.

Specified by:

getAlternateEndpoints in interface FailoverStrategy

Parameters:

exchange - the current Exchange

Returns:

a List of alternate endpoints if available

selectAlternateEndpoint

public Endpoint selectAlternateEndpoint(List<Endpoint> alternates)

Select one of the alternate endpoints for a retried invocation.

Specified by:

selectAlternateEndpoint in interface FailoverStrategy

Parameters:

alternates - a List of alternate endpoints if available

Returns:

the selected endpoint or null if no alternate endpoint is available

getEndpoints

protected List<Endpoint> getEndpoints(Exchange exchange,
                                      boolean acceptCandidatesWithSameAddress)

Get the endpoints for this invocation.

Parameters:

exchange - the current Exchange

acceptCandidatesWithSameAddress - true to accept candidates with the same address

Returns:

a List of alternate endpoints if available

getNextAlternate

protected abstract <T> T getNextAlternate(List<T> alternates)

Get next alternate endpoint.

Parameters:

alternates - non-empty List of alternate endpoints

Returns:

getLogLevel

protected Level getLogLevel()

Get the log level for reporting the selection of the new alternative address or endpoint

Returns:

the log level