org.apache.servicecomb.core.filter.impl

Class EmptyFilter

java.lang.Object

org.apache.servicecomb.core.filter.impl.EmptyFilter

All Implemented Interfaces:

Filter, InternalFilter

public class EmptyFilter
extends Object
implements InternalFilter

Constructor Summary

Constructors

Constructor and Description
EmptyFilter()

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.Filter

getInvocationTypes, isEnabled, isInEventLoop

Constructor Detail

EmptyFilter

public EmptyFilter()

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