[英]How to use resilience4j on calling method?
我尝试使用弹簧重试进行断路和重试,如下所示,它正在按预期工作但是问题是无法将“maxAttempts / openTimeout / resetTimeout”配置为env变量(错误应该是常量)。 我的问题是如何使用resilience4j来达到以下要求?
另请注意,有一种方法可以将env变量传递给“maxAttempts / openTimeout / resetTimeout”。
@CircuitBreaker(value = {
MongoServerException.class,
MongoSocketException.class,
MongoTimeoutException.class
MongoSocketOpenException.class},
maxAttempts = 2,
openTimeout = 20000L ,
resetTimeout = 30000L)
public void insertDocument(ConsumerRecord<Long, GenericRecord> consumerRecord){
retryTemplate.execute(args0 -> {
LOGGER.info(String.format("Inserting record with key -----> %s", consumerRecord.key().toString()));
BasicDBObject dbObject = BasicDBObject.parse(consumerRecord.value().toString());
dbObject.put("_id", consumerRecord.key());
mongoCollection.replaceOne(<<BasicDBObject with id>>, getReplaceOptions());
return null;
});
}
@Recover
public void recover(RuntimeException t) {
LOGGER.info(" Recovering from Circuit Breaker ");
}
使用的依赖是
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.retry</groupId>
<artifactId>spring-retry</artifactId>
</dependency>
您没有使用resilience4j,而是使用spring-retry。 您应该调整问题的标题。
CircuitBreakerConfig circuitBreakerConfig = CircuitBreakerConfig.custom()
.waitDurationInOpenState(Duration.ofMillis(20000))
.build();
CircuitBreakerRegistry circuitBreakerRegistry = CircuitBreakerRegistry.of(circuitBreakerConfig);
CircuitBreaker circuitBreaker = circuitBreakerRegistry.circuitBreaker("mongoDB");
RetryConfig retryConfig = RetryConfig.custom().maxAttempts(3)
.retryExceptions(MongoServerException.class,
MongoSocketException.class,
MongoTimeoutException.class
MongoSocketOpenException.class)
.ignoreExceptions(CircuitBreakerOpenException.class).build();
Retry retry = Retry.of("helloBackend", retryConfig);
Runnable decoratedRunnable = Decorators.ofRunnable(() -> insertDocument(ConsumerRecord<Long, GenericRecord> consumerRecord))
.withCircuitBreaker(circuitBreaker)
.withRetry(retry)
.decorate();
String result = Try.runRunnable(decoratedRunnable )
.recover(exception -> ...).get();
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