HalfOpenState

java.lang.Object
- dev.failsafe.internal.CircuitState<R>
- - dev.failsafe.internal.HalfOpenState<R>

class HalfOpenState<R>
extends CircuitState<R>

Field Summary

Fields
Modifier and Type Field Description

protected java.util.concurrent.atomic.AtomicInteger permittedExecutions
- Fields inherited from class dev.failsafe.internal.CircuitState
  breaker, config, stats

Constructor Summary

Constructors
Constructor Description

HalfOpenState(CircuitBreakerImpl<R> breaker)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private static int`	`capacityFor(CircuitBreaker<?> breaker)`	Returns the capacity of the breaker in the half-open state.
`(package private) void`	`checkThreshold(ExecutionContext<R> context)`	Checks to determine if a threshold has been met and the circuit should be opened or closed.
`CircuitBreaker.State`	`getState()`
`void`	`handleConfigChange()`
`void`	`releasePermit()`
`boolean`	`tryAcquirePermit()`

Methods inherited from class dev.failsafe.internal.CircuitState
getRemainingDelay, getStats, recordFailure, recordSuccess

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - permittedExecutions
```
protected final java.util.concurrent.atomic.AtomicInteger permittedExecutions
```
- Constructor Detail
  - HalfOpenState
```
public HalfOpenState(CircuitBreakerImpl<R> breaker)
```
- Method Detail
  - tryAcquirePermit
```
public boolean tryAcquirePermit()
```
    Specified by:
    
    tryAcquirePermit in class CircuitState<R>
  - releasePermit
```
public void releasePermit()
```
    Overrides:
    
    releasePermit in class CircuitState<R>
  - getState
```
public CircuitBreaker.State getState()
```
    Specified by:
    
    getState in class CircuitState<R>
  - handleConfigChange
```
public void handleConfigChange()
```
    Overrides:
    
    handleConfigChange in class CircuitState<R>
  - checkThreshold
```
void checkThreshold(ExecutionContext<R> context)
```
    Checks to determine if a threshold has been met and the circuit should be opened or closed.
    If a success threshold is configured, the circuit is opened or closed based on whether the ratio was exceeded.
    Else the circuit is opened or closed based on whether the failure threshold was exceeded.
    
    Overrides:
    
    checkThreshold in class CircuitState<R>
  - capacityFor
```
private static int capacityFor(CircuitBreaker<?> breaker)
```
    Returns the capacity of the breaker in the half-open state.