com.alibaba.csp.sentinel.context

Class Context

java.lang.Object

com.alibaba.csp.sentinel.context.Context

Direct Known Subclasses:

NullContext

public class Context
extends Object

This class holds metadata of current invocation:

• the EntranceNode: the root of the current invocation tree.
• the current Entry: the current invocation point.
• the current Node: the statistics related to the Entry.
• the origin:The origin is useful when we want to control different invoker/consumer separately. Usually the origin could be the Service Consumer's app name.

Each SphU#entry() or SphO#entry() should be in a Context, if we don't invoke ContextUtil#enter() explicitly, DEFAULT context will be used.

A invocation tree will be created if we invoke SphU#entry() multi times in the same context.

Same resource in different context will count separately, see NodeSelectorSlot.

Author:

jialiang.linjl, leyou(lihao), Eric Zhao

See Also:

ContextUtil, NodeSelectorSlot

Constructor Summary

Constructors

Constructor and Description
Context(DefaultNode entranceNode, String name)

Method Summary

Modifier and Type	Method and Description
Entry	getCurEntry()
Node	getCurNode()
DefaultNode	getEntranceNode()
Node	getLastNode() Get the parent Node of the current.
String	getName()
String	getOrigin()
double	getOriginAvgRt()
double	getOriginBlockedQps()
long	getOriginBlockedRequest()
int	getOriginCurThreadNum()
Node	getOriginNode()
double	getOriginPassedQps()
double	getOriginPassedReqQps()
double	getOriginTotalQps()
long	getOriginTotalRequest()
void	setCurEntry(Entry curEntry)
void	setCurNode(Node node)
void	setOrigin(String origin)

Methods inherited from class java.lang.Object

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

Constructor Detail

Context

public Context(DefaultNode entranceNode,
               String name)

Method Detail

getName

public String getName()

getCurNode

public Node getCurNode()

setCurNode

public void setCurNode(Node node)

getCurEntry

public Entry getCurEntry()

setCurEntry

public void setCurEntry(Entry curEntry)

getOrigin

public String getOrigin()

setOrigin

public void setOrigin(String origin)

getOriginTotalQps

public double getOriginTotalQps()

getOriginBlockedQps

public double getOriginBlockedQps()

getOriginPassedReqQps

public double getOriginPassedReqQps()

getOriginPassedQps

public double getOriginPassedQps()

getOriginTotalRequest

public long getOriginTotalRequest()

getOriginBlockedRequest

public long getOriginBlockedRequest()

getOriginAvgRt

public double getOriginAvgRt()

getOriginCurThreadNum

public int getOriginCurThreadNum()

getEntranceNode

public DefaultNode getEntranceNode()

getLastNode

public Node getLastNode()

Get the parent Node of the current.

Returns:

the parent node of the current.

getOriginNode

public Node getOriginNode()