io.sermant.flowcontrol.res4j.chain

Class AbstractChainHandler

java.lang.Object

io.sermant.flowcontrol.res4j.chain.AbstractChainHandler

All Implemented Interfaces:

RequestHandler, Comparable<AbstractChainHandler>

Direct Known Subclasses:

BusinessRequestHandler, FlowControlHandler, HandlerChain

public abstract class AbstractChainHandler
extends Object
implements RequestHandler, Comparable<AbstractChainHandler>

abstract handler chain, the order of execution is as follows:

onBefore -> onThrow(executed when an exception exists) -> onResult

Since:

2022-07-11

Author:

zhouss

Field Summary

Fields

Modifier and Type	Field and Description
protected static io.sermant.flowcontrol.common.config.XdsFlowControlConfig	XDS_FLOW_CONTROL_CONFIG

Constructor Summary

Constructors

Constructor and Description
AbstractChainHandler()

Method Summary

Modifier and Type	Method and Description
int	compareTo(AbstractChainHandler handler)
protected io.sermant.flowcontrol.common.entity.RequestEntity.RequestType	direct() request direction, both are processed by default, In actual processing, the request direction determines whether it needs to be processed by the current handler
boolean	equals(Object obj)
AbstractChainHandler	getNext()
int	hashCode()
protected boolean	isSkip(RequestContext context, io.sermant.flowcontrol.common.entity.FlowControlScenario flowControlScenario) whether to skip the current handler
void	onBefore(RequestContext context, io.sermant.flowcontrol.common.entity.FlowControlScenario flowControlScenario) request processing
void	onResult(RequestContext context, io.sermant.flowcontrol.common.entity.FlowControlScenario flowControlScenario, Object result) response processing
void	onThrow(RequestContext context, io.sermant.flowcontrol.common.entity.FlowControlScenario flowControlScenario, Throwable throwable) response processing
void	setNext(AbstractChainHandler processor)

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.sermant.flowcontrol.res4j.chain.RequestHandler

getOrder

Field Detail

XDS_FLOW_CONTROL_CONFIG

protected static final io.sermant.flowcontrol.common.config.XdsFlowControlConfig XDS_FLOW_CONTROL_CONFIG

Constructor Detail

AbstractChainHandler

public AbstractChainHandler()

Method Detail

onBefore

public void onBefore(RequestContext context,
                     io.sermant.flowcontrol.common.entity.FlowControlScenario flowControlScenario)

Description copied from interface: RequestHandler

request processing

Specified by:

onBefore in interface RequestHandler

Parameters:

context - request context

flowControlScenario - matched business information

onThrow

public void onThrow(RequestContext context,
                    io.sermant.flowcontrol.common.entity.FlowControlScenario flowControlScenario,
                    Throwable throwable)

Description copied from interface: RequestHandler

response processing

Specified by:

onThrow in interface RequestHandler

Parameters:

context - request context

flowControlScenario - matched business information

throwable - throwable

onResult

public void onResult(RequestContext context,
                     io.sermant.flowcontrol.common.entity.FlowControlScenario flowControlScenario,
                     Object result)

Description copied from interface: RequestHandler

response processing

Specified by:

onResult in interface RequestHandler

Parameters:

context - request context

flowControlScenario - matched business information

result - response result

direct

protected io.sermant.flowcontrol.common.entity.RequestEntity.RequestType direct()

request direction, both are processed by default, In actual processing, the request direction determines whether it needs to be processed by the current handler

Returns:

RequestType

isSkip

protected boolean isSkip(RequestContext context,
                         io.sermant.flowcontrol.common.entity.FlowControlScenario flowControlScenario)

whether to skip the current handler

Parameters:

context - requestContext

flowControlScenario - matched scenario information

Returns:

skip or not

compareTo

public int compareTo(AbstractChainHandler handler)

Specified by:

compareTo in interface Comparable<AbstractChainHandler>

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

setNext

public void setNext(AbstractChainHandler processor)

getNext

public AbstractChainHandler getNext()