com.netflix.hystrix.contrib.javanica.command

Class GenericObservableCommand

java.lang.Object

com.netflix.hystrix.HystrixObservableCommand

com.netflix.hystrix.contrib.javanica.command.GenericObservableCommand

All Implemented Interfaces:

com.netflix.hystrix.HystrixInvokable, com.netflix.hystrix.HystrixInvokableInfo, com.netflix.hystrix.HystrixObservable

@ThreadSafe
public class GenericObservableCommand
extends com.netflix.hystrix.HystrixObservableCommand

Generic class for all observable commands executed within javanica context.

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.HystrixObservableCommand

com.netflix.hystrix.HystrixObservableCommand.Setter

Field Summary

Fields

Modifier and Type	Field and Description
protected com.netflix.hystrix.HystrixCircuitBreaker	circuitBreaker
protected static java.util.concurrent.ConcurrentHashMap<com.netflix.hystrix.HystrixCommandKey,java.lang.Boolean>	commandContainsFallback
protected com.netflix.hystrix.HystrixCommandGroupKey	commandGroup
protected com.netflix.hystrix.HystrixCommandKey	commandKey
protected long	commandStartTimestamp
protected java.util.concurrent.atomic.AtomicReference<com.netflix.hystrix.AbstractCommand.CommandState>	commandState
protected com.netflix.hystrix.strategy.concurrency.HystrixConcurrencyStrategy	concurrencyStrategy
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 java.util.concurrent.ConcurrentHashMap<java.lang.String,com.netflix.hystrix.AbstractCommand.TryableSemaphore>	executionSemaphorePerCircuit
protected com.netflix.hystrix.AbstractCommand.TryableSemaphore	fallbackSemaphoreOverride
protected static java.util.concurrent.ConcurrentHashMap<java.lang.String,com.netflix.hystrix.AbstractCommand.TryableSemaphore>	fallbackSemaphorePerCircuit
protected java.util.concurrent.atomic.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 java.util.concurrent.atomic.AtomicReference<com.netflix.hystrix.AbstractCommand.ThreadState>	threadState
protected java.util.concurrent.atomic.AtomicReference<java.lang.ref.Reference<com.netflix.hystrix.util.HystrixTimer.TimerListener>>	timeoutTimer

Constructor Summary

Constructors

Constructor and Description
GenericObservableCommand(HystrixCommandBuilder builder)

Method Summary

Modifier and Type	Method and Description
protected rx.Observable	construct() .
protected java.lang.Throwable	decomposeException(java.lang.Exception arg0)
protected void	flushCache() Clears cache for the specified hystrix command.
protected java.lang.String	getCacheKey() .
protected java.lang.Exception	getExceptionFromThrowable(java.lang.Throwable arg0)
protected com.netflix.hystrix.AbstractCommand.TryableSemaphore	getExecutionSemaphore()
protected com.netflix.hystrix.AbstractCommand.TryableSemaphore	getFallbackSemaphore()
protected java.lang.String	getLogMessagePrefix()
protected void	handleThreadEnd(com.netflix.hystrix.AbstractCommand<R> arg0)
protected boolean	isRequestCachingEnabled()
protected rx.Observable	resumeWithFallback() .
protected boolean	shouldNotBeWrapped(java.lang.Throwable arg0)

Methods inherited from class com.netflix.hystrix.HystrixObservableCommand

commandIsScalar, getExecutionObservable, getFallbackMethodName, getFallbackObservable, isFallbackUserDefined, shouldOutputOnNextEvents

Methods inherited from class java.lang.Object

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

Field Detail

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 java.util.concurrent.ConcurrentHashMap<java.lang.String,com.netflix.hystrix.AbstractCommand.TryableSemaphore> fallbackSemaphorePerCircuit

executionSemaphoreOverride

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

executionSemaphorePerCircuit

protected static final java.util.concurrent.ConcurrentHashMap<java.lang.String,com.netflix.hystrix.AbstractCommand.TryableSemaphore> executionSemaphorePerCircuit

timeoutTimer

protected final java.util.concurrent.atomic.AtomicReference<java.lang.ref.Reference<com.netflix.hystrix.util.HystrixTimer.TimerListener>> timeoutTimer

commandState

protected java.util.concurrent.atomic.AtomicReference<com.netflix.hystrix.AbstractCommand.CommandState> commandState

threadState

protected java.util.concurrent.atomic.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 java.util.concurrent.atomic.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 java.util.concurrent.ConcurrentHashMap<com.netflix.hystrix.HystrixCommandKey,java.lang.Boolean> commandContainsFallback

Constructor Detail

GenericObservableCommand

public GenericObservableCommand(HystrixCommandBuilder builder)

Method Detail

construct

protected rx.Observable construct()

.

Specified by:

construct in class com.netflix.hystrix.HystrixObservableCommand

resumeWithFallback

protected rx.Observable resumeWithFallback()

.

Overrides:

resumeWithFallback in class com.netflix.hystrix.HystrixObservableCommand

getCacheKey

protected java.lang.String getCacheKey()

.

flushCache

protected void flushCache()

Clears cache for the specified hystrix command.

shouldNotBeWrapped

protected boolean shouldNotBeWrapped(java.lang.Throwable arg0)

handleThreadEnd

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

getFallbackSemaphore

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

getExecutionSemaphore

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

decomposeException

protected java.lang.Throwable decomposeException(java.lang.Exception arg0)

isRequestCachingEnabled

protected boolean isRequestCachingEnabled()

getLogMessagePrefix

protected java.lang.String getLogMessagePrefix()

getExceptionFromThrowable

protected java.lang.Exception getExceptionFromThrowable(java.lang.Throwable arg0)