org.springframework.cloud.netflix.zuul.filters.route.support

Class AbstractRibbonCommand<LBC extends com.netflix.client.AbstractLoadBalancerAwareClient<RQ,RS>,RQ extends com.netflix.client.ClientRequest,RS extends com.netflix.client.http.HttpResponse>

java.lang.Object

com.netflix.hystrix.HystrixCommand<org.springframework.http.client.ClientHttpResponse>

org.springframework.cloud.netflix.zuul.filters.route.support.AbstractRibbonCommand<LBC,RQ,RS>

All Implemented Interfaces:

com.netflix.hystrix.HystrixExecutable<org.springframework.http.client.ClientHttpResponse>, com.netflix.hystrix.HystrixInvokable<org.springframework.http.client.ClientHttpResponse>, com.netflix.hystrix.HystrixInvokableInfo<org.springframework.http.client.ClientHttpResponse>, com.netflix.hystrix.HystrixObservable<org.springframework.http.client.ClientHttpResponse>, RibbonCommand

Direct Known Subclasses:

HttpClientRibbonCommand, OkHttpRibbonCommand, RestClientRibbonCommand

public abstract class AbstractRibbonCommand<LBC extends com.netflix.client.AbstractLoadBalancerAwareClient<RQ,RS>,RQ extends com.netflix.client.ClientRequest,RS extends com.netflix.client.http.HttpResponse>
extends com.netflix.hystrix.HystrixCommand<org.springframework.http.client.ClientHttpResponse>
implements RibbonCommand

Author:

Spencer Gibb

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	com.netflix.hystrix.AbstractCommand.CommandState
protected static class	com.netflix.hystrix.AbstractCommand.ThreadState
protected static class	com.netflix.hystrix.AbstractCommand.TimedOutStatus

Nested classes/interfaces inherited from class com.netflix.hystrix.HystrixCommand

com.netflix.hystrix.HystrixCommand.Setter

Field Summary

Fields

Modifier and Type	Field and Description
protected com.netflix.hystrix.HystrixCircuitBreaker	circuitBreaker
protected LBC	client
protected static ConcurrentHashMap<com.netflix.hystrix.HystrixCommandKey,Boolean>	commandContainsFallback
protected com.netflix.hystrix.HystrixCommandGroupKey	commandGroup
protected com.netflix.hystrix.HystrixCommandKey	commandKey
protected long	commandStartTimestamp
protected AtomicReference<com.netflix.hystrix.AbstractCommand.CommandState>	commandState
protected com.netflix.hystrix.strategy.concurrency.HystrixConcurrencyStrategy	concurrencyStrategy
protected com.netflix.client.config.IClientConfig	config
protected RibbonCommandContext	context
protected com.netflix.hystrix.HystrixRequestLog	currentRequestLog
protected rx.functions.Action0	endCurrentThreadExecutingCommand
protected com.netflix.hystrix.strategy.eventnotifier.HystrixEventNotifier	eventNotifier
protected com.netflix.hystrix.strategy.executionhook.HystrixCommandExecutionHook	executionHook
protected com.netflix.hystrix.ExecutionResult	executionResult
protected com.netflix.hystrix.ExecutionResult	executionResultAtTimeOfCancellation
protected com.netflix.hystrix.AbstractCommand.TryableSemaphore	executionSemaphoreOverride
protected static ConcurrentHashMap<String,com.netflix.hystrix.AbstractCommand.TryableSemaphore>	executionSemaphorePerCircuit
protected com.netflix.hystrix.AbstractCommand.TryableSemaphore	fallbackSemaphoreOverride
protected static ConcurrentHashMap<String,com.netflix.hystrix.AbstractCommand.TryableSemaphore>	fallbackSemaphorePerCircuit
protected AtomicReference<com.netflix.hystrix.AbstractCommand.TimedOutStatus>	isCommandTimedOut
protected boolean	isResponseFromCache
protected com.netflix.hystrix.HystrixCommandMetrics	metrics
protected com.netflix.hystrix.HystrixCommandProperties	properties
protected com.netflix.hystrix.HystrixRequestCache	requestCache
protected com.netflix.hystrix.HystrixThreadPool	threadPool
protected com.netflix.hystrix.HystrixThreadPoolKey	threadPoolKey
protected AtomicReference<com.netflix.hystrix.AbstractCommand.ThreadState>	threadState
protected AtomicReference<Reference<com.netflix.hystrix.util.HystrixTimer.TimerListener>>	timeoutTimer
protected ZuulFallbackProvider	zuulFallbackProvider

Constructor Summary

Constructors

Constructor and Description
AbstractRibbonCommand(LBC client, RibbonCommandContext context, ZuulProperties zuulProperties)
AbstractRibbonCommand(String commandKey, LBC client, RibbonCommandContext context, ZuulProperties zuulProperties)
AbstractRibbonCommand(String commandKey, LBC client, RibbonCommandContext context, ZuulProperties zuulProperties, ZuulFallbackProvider fallbackProvider)
AbstractRibbonCommand(String commandKey, LBC client, RibbonCommandContext context, ZuulProperties zuulProperties, ZuulFallbackProvider fallbackProvider, com.netflix.client.config.IClientConfig config)

Method Summary

Modifier and Type	Method and Description
protected abstract RQ	createRequest()
protected Throwable	decomposeException(Exception arg0)
protected String	getCacheKey()
LBC	getClient()
RibbonCommandContext	getContext()
protected Exception	getExceptionFromThrowable(Throwable arg0)
protected com.netflix.hystrix.AbstractCommand.TryableSemaphore	getExecutionSemaphore()
protected org.springframework.http.client.ClientHttpResponse	getFallback()
protected com.netflix.hystrix.AbstractCommand.TryableSemaphore	getFallbackSemaphore()
protected String	getLogMessagePrefix()
protected static com.netflix.hystrix.HystrixCommand.Setter	getSetter(String commandKey, ZuulProperties zuulProperties)
protected void	handleThreadEnd(com.netflix.hystrix.AbstractCommand<R> arg0)
protected boolean	isRequestCachingEnabled()
protected org.springframework.http.client.ClientHttpResponse	run()
protected boolean	shouldNotBeWrapped(Throwable arg0)
protected boolean	shouldOutputOnNextEvents()

Methods inherited from class com.netflix.hystrix.HystrixCommand

commandIsScalar, execute, getExecutionObservable, getFallbackMethodName, getFallbackObservable, isFallbackUserDefined, queue

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.netflix.hystrix.HystrixExecutable

execute, observe, queue

Field Detail

client

protected final LBC extends com.netflix.client.AbstractLoadBalancerAwareClient<RQ,RS> client

context

protected RibbonCommandContext context

zuulFallbackProvider

protected ZuulFallbackProvider zuulFallbackProvider

config

protected com.netflix.client.config.IClientConfig config

circuitBreaker

protected final com.netflix.hystrix.HystrixCircuitBreaker circuitBreaker

threadPool

protected final com.netflix.hystrix.HystrixThreadPool threadPool

threadPoolKey

protected final com.netflix.hystrix.HystrixThreadPoolKey threadPoolKey

properties

protected final com.netflix.hystrix.HystrixCommandProperties properties

metrics

protected final com.netflix.hystrix.HystrixCommandMetrics metrics

commandKey

protected final com.netflix.hystrix.HystrixCommandKey commandKey

commandGroup

protected final com.netflix.hystrix.HystrixCommandGroupKey commandGroup

eventNotifier

protected final com.netflix.hystrix.strategy.eventnotifier.HystrixEventNotifier eventNotifier

concurrencyStrategy

protected final com.netflix.hystrix.strategy.concurrency.HystrixConcurrencyStrategy concurrencyStrategy

executionHook

protected final com.netflix.hystrix.strategy.executionhook.HystrixCommandExecutionHook executionHook

fallbackSemaphoreOverride

protected final com.netflix.hystrix.AbstractCommand.TryableSemaphore fallbackSemaphoreOverride

fallbackSemaphorePerCircuit

protected static final ConcurrentHashMap<String,com.netflix.hystrix.AbstractCommand.TryableSemaphore> fallbackSemaphorePerCircuit

executionSemaphoreOverride

protected final com.netflix.hystrix.AbstractCommand.TryableSemaphore executionSemaphoreOverride

executionSemaphorePerCircuit

protected static final ConcurrentHashMap<String,com.netflix.hystrix.AbstractCommand.TryableSemaphore> executionSemaphorePerCircuit

timeoutTimer

protected final AtomicReference<Reference<com.netflix.hystrix.util.HystrixTimer.TimerListener>> timeoutTimer

commandState

protected AtomicReference<com.netflix.hystrix.AbstractCommand.CommandState> commandState

threadState

protected AtomicReference<com.netflix.hystrix.AbstractCommand.ThreadState> threadState

executionResult

protected volatile com.netflix.hystrix.ExecutionResult executionResult

isResponseFromCache

protected volatile boolean isResponseFromCache

executionResultAtTimeOfCancellation

protected volatile com.netflix.hystrix.ExecutionResult executionResultAtTimeOfCancellation

commandStartTimestamp

protected volatile long commandStartTimestamp

isCommandTimedOut

protected final AtomicReference<com.netflix.hystrix.AbstractCommand.TimedOutStatus> isCommandTimedOut

endCurrentThreadExecutingCommand

protected volatile rx.functions.Action0 endCurrentThreadExecutingCommand

requestCache

protected final com.netflix.hystrix.HystrixRequestCache requestCache

currentRequestLog

protected final com.netflix.hystrix.HystrixRequestLog currentRequestLog

commandContainsFallback

protected static ConcurrentHashMap<com.netflix.hystrix.HystrixCommandKey,Boolean> commandContainsFallback

Constructor Detail

AbstractRibbonCommand

public AbstractRibbonCommand(LBC client,
                             RibbonCommandContext context,
                             ZuulProperties zuulProperties)

AbstractRibbonCommand

public AbstractRibbonCommand(String commandKey,
                             LBC client,
                             RibbonCommandContext context,
                             ZuulProperties zuulProperties)

AbstractRibbonCommand

public AbstractRibbonCommand(String commandKey,
                             LBC client,
                             RibbonCommandContext context,
                             ZuulProperties zuulProperties,
                             ZuulFallbackProvider fallbackProvider)

AbstractRibbonCommand

public AbstractRibbonCommand(String commandKey,
                             LBC client,
                             RibbonCommandContext context,
                             ZuulProperties zuulProperties,
                             ZuulFallbackProvider fallbackProvider,
                             com.netflix.client.config.IClientConfig config)

Method Detail

getSetter

protected static com.netflix.hystrix.HystrixCommand.Setter getSetter(String commandKey,
                                                                     ZuulProperties zuulProperties)

run

protected org.springframework.http.client.ClientHttpResponse run()
                                                          throws Exception

Specified by:

run in class com.netflix.hystrix.HystrixCommand<org.springframework.http.client.ClientHttpResponse>

Throws:

Exception

getFallback

protected org.springframework.http.client.ClientHttpResponse getFallback()

Overrides:

getFallback in class com.netflix.hystrix.HystrixCommand<org.springframework.http.client.ClientHttpResponse>

getClient

public LBC getClient()

getContext

public RibbonCommandContext getContext()

createRequest

protected abstract RQ createRequest()
                             throws Exception

Throws:

Exception

shouldNotBeWrapped

protected boolean shouldNotBeWrapped(Throwable arg0)

handleThreadEnd

protected void handleThreadEnd(com.netflix.hystrix.AbstractCommand<R> arg0)

shouldOutputOnNextEvents

protected boolean shouldOutputOnNextEvents()

getFallbackSemaphore

protected com.netflix.hystrix.AbstractCommand.TryableSemaphore getFallbackSemaphore()

getExecutionSemaphore

protected com.netflix.hystrix.AbstractCommand.TryableSemaphore getExecutionSemaphore()

decomposeException

protected Throwable decomposeException(Exception arg0)

getCacheKey

protected String getCacheKey()

isRequestCachingEnabled

protected boolean isRequestCachingEnabled()

getLogMessagePrefix

protected String getLogMessagePrefix()

getExceptionFromThrowable

protected Exception getExceptionFromThrowable(Throwable arg0)