org.apache.servicecomb.core.filter.impl

Class SimpleLoadBalanceFilter

java.lang.Object

org.apache.servicecomb.core.filter.impl.SimpleLoadBalanceFilter

All Implemented Interfaces:

ConsumerFilter, Filter

@Component
public class SimpleLoadBalanceFilter
extends Object
implements ConsumerFilter

build-in round robin LB, for demo scenes

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAME

Constructor Summary

Constructors

Constructor and Description
SimpleLoadBalanceFilter()

Method Summary

Modifier and Type	Method and Description
String	getName()
CompletableFuture<Response>	onFilter(Invocation invocation, FilterNode nextNode)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.servicecomb.core.filter.ConsumerFilter

getInvocationTypes

Methods inherited from interface org.apache.servicecomb.core.filter.Filter

isEnabled, isInEventLoop

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

Constructor Detail

SimpleLoadBalanceFilter

public SimpleLoadBalanceFilter()

Method Detail

getName

@Nonnull
public String getName()

Specified by:

getName in interface Filter

onFilter

public CompletableFuture<Response> onFilter(Invocation invocation,
                                            FilterNode nextNode)

Specified by:

onFilter in interface Filter

Parameters:

invocation - invocation

nextNode - node filter node

Returns:

response future
even Response can express fail data
but Response only express success data in filter chain
all fail data can only express by exception

special for producer:
if response is failure, then after encode response, response.result will be exception.errorData, not a exception