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22 changes: 22 additions & 0 deletions
22
piikii-common/src/main/kotlin/com/piikii/common/exception/ServiceException.kt
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package com.piikii.common.exception | ||
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class ServiceException : RuntimeException { | ||
var statusCode: Int | ||
var defaultMessage: String | ||
var detailMessage: String? = null | ||
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constructor( | ||
exceptionCode: ExceptionCode, | ||
detailMessage: String, | ||
) : super("[$exceptionCode] $detailMessage") { | ||
this.statusCode = exceptionCode.statusCode | ||
this.defaultMessage = exceptionCode.defaultMessage | ||
this.detailMessage = detailMessage | ||
} | ||
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constructor(exceptionCode: ExceptionCode) : | ||
super("[$exceptionCode] ${exceptionCode.defaultMessage}") { | ||
this.statusCode = exceptionCode.statusCode | ||
this.defaultMessage = exceptionCode.defaultMessage | ||
} | ||
} |
88 changes: 88 additions & 0 deletions
88
piikii-input-http/src/main/kotlin/com/piikii/input/http/aspect/LimitConcurrentRequest.kt
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package com.piikii.input.http.aspect | ||
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import com.piikii.common.exception.ExceptionCode | ||
import com.piikii.common.exception.ServiceException | ||
import com.piikii.output.redis.RedisLockRepository | ||
import org.aspectj.lang.ProceedingJoinPoint | ||
import org.aspectj.lang.annotation.Around | ||
import org.aspectj.lang.annotation.Aspect | ||
import org.aspectj.lang.reflect.MethodSignature | ||
import org.springframework.context.expression.MethodBasedEvaluationContext | ||
import org.springframework.core.DefaultParameterNameDiscoverer | ||
import org.springframework.expression.spel.standard.SpelExpressionParser | ||
import org.springframework.stereotype.Component | ||
import java.time.Duration | ||
import java.time.Instant | ||
import java.time.temporal.ChronoUnit | ||
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@Target(AnnotationTarget.FUNCTION) | ||
@Retention(AnnotationRetention.RUNTIME) | ||
annotation class LimitConcurrentRequest( | ||
val key: String, | ||
val maxRequestCount: Long = 1, | ||
val timeUnit: ChronoUnit = ChronoUnit.SECONDS, | ||
val amount: Long = 5, | ||
) | ||
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@Aspect | ||
@Component | ||
class LimitConcurrentRequestAspect( | ||
private val redisLockRepository: RedisLockRepository, | ||
) { | ||
private val parser = SpelExpressionParser() | ||
private val parameterNameDiscoverer = DefaultParameterNameDiscoverer() | ||
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@Around("@annotation(RateLimiter)") | ||
fun limitConcurrentRequest(joinPoint: ProceedingJoinPoint): Any? { | ||
val signature = joinPoint.signature as MethodSignature | ||
val method = signature.method | ||
val annotation = method.getAnnotation(LimitConcurrentRequest::class.java) | ||
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val key = "req_concurrent_limit:${method.name}" | ||
val epochSecond = Instant.now().epochSecond.toDouble() | ||
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val member = generateMember( | ||
memberSuffix = epochSecond.toString(), | ||
joinPoint = joinPoint, | ||
signature = signature, | ||
annotation = annotation | ||
) | ||
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val ttl = Duration.of(annotation.amount, annotation.timeUnit) | ||
redisLockRepository.removeOutOfWindow(key, epochSecond, ttl) | ||
if (redisLockRepository.getCountRequestsInWindow(key) >= annotation.maxRequestCount) { | ||
throw ServiceException(ExceptionCode.REQUEST_LIMIT_EXCEEDED_IN_TIME_WINDOW) | ||
} | ||
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redisLockRepository.increaseRequestsInWindow(key, member, epochSecond, ttl) | ||
return joinPoint.proceed() | ||
} | ||
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/** | ||
* 요청 인식용 Member parsing | ||
* - using SpEL parsed value | ||
*/ | ||
private fun generateMember( | ||
memberSuffix: String, | ||
joinPoint: ProceedingJoinPoint, | ||
signature: MethodSignature, | ||
annotation: LimitConcurrentRequest, | ||
): String { | ||
val method = signature.method | ||
val expression = parser.parseExpression(annotation.key) | ||
val context = | ||
MethodBasedEvaluationContext( | ||
joinPoint.target, | ||
method, | ||
joinPoint.args, | ||
parameterNameDiscoverer, | ||
) | ||
val member = expression.getValue(context, String::class.java) | ||
?: throw ServiceException( | ||
ExceptionCode.NOT_FOUNDED, | ||
"LimitConcurrentRequest member 추출에 실패했습니다 (method: ${method.name}, annotation key: ${annotation.key})", | ||
) | ||
return "$member:$memberSuffix" | ||
} | ||
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} |
96 changes: 96 additions & 0 deletions
96
...http/src/main/kotlin/com/piikii/input/http/aspect/PreventDuplicateAspectWithConcurrent.kt
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package com.piikii.input.http.aspect | ||
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import com.piikii.common.exception.ExceptionCode | ||
import com.piikii.common.exception.ServiceException | ||
import org.aspectj.lang.ProceedingJoinPoint | ||
import org.aspectj.lang.annotation.Around | ||
import org.aspectj.lang.annotation.Aspect | ||
import org.aspectj.lang.reflect.MethodSignature | ||
import org.springframework.context.expression.MethodBasedEvaluationContext | ||
import org.springframework.core.DefaultParameterNameDiscoverer | ||
import org.springframework.expression.spel.standard.SpelExpressionParser | ||
import org.springframework.stereotype.Component | ||
import java.time.temporal.ChronoUnit | ||
import java.util.concurrent.ConcurrentHashMap | ||
import java.util.concurrent.Executors | ||
import java.util.concurrent.TimeUnit | ||
import java.util.concurrent.TimeoutException | ||
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/** | ||
* 중복요청 방지 제어 Annotation | ||
* | ||
* @property key key to determine duplicate requests (support SpEL) | ||
* @property timeUnit time unit of timeout | ||
* @property amount time amount of timeout | ||
*/ | ||
@Target(AnnotationTarget.FUNCTION) | ||
@Retention(AnnotationRetention.RUNTIME) | ||
annotation class PreventDuplicateAspectWithConcurrent( | ||
val key: String, | ||
val timeUnit: ChronoUnit = ChronoUnit.SECONDS, | ||
val amount: Long = 5, | ||
) | ||
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@Aspect | ||
@Component | ||
class PreventDuplicateAspectWithConcurrentAspect { | ||
private val processingRequests = ConcurrentHashMap.newKeySet<String>() | ||
private val parser = SpelExpressionParser() | ||
private val parameterNameDiscoverer = DefaultParameterNameDiscoverer() | ||
private val executor = Executors.newVirtualThreadPerTaskExecutor() | ||
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@Around("@annotation(PreventDuplicateRequest)") | ||
fun preventDuplicateRequest(joinPoint: ProceedingJoinPoint): Any? { | ||
val signature = joinPoint.signature as MethodSignature | ||
val method = signature.method | ||
val annotation = method.getAnnotation(PreventDuplicateRequest::class.java) | ||
val key = generateKey(joinPoint, signature, annotation) | ||
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if (!processingRequests.add(key)) { | ||
// if exists, throw Duplicated Request Exception | ||
throw ServiceException(ExceptionCode.DUPLICATED_REQUEST) | ||
} | ||
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val future = executor.submit<Any> { joinPoint.proceed() } | ||
try { | ||
return future.get(annotation.amount, TimeUnit.of(annotation.timeUnit)) | ||
} catch (e: TimeoutException) { | ||
future.cancel(true) | ||
throw ServiceException(ExceptionCode.REQUEST_TIMEOUT) | ||
} finally { | ||
processingRequests.remove(key) | ||
} | ||
} | ||
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/** | ||
* 중복 요청으로 판단할 key 생성 | ||
* - method name + SpEL parsed value | ||
* | ||
* @param joinPoint | ||
* @param signature | ||
* @param annotation | ||
* @return Key to determine duplicate requests | ||
*/ | ||
private fun generateKey( | ||
joinPoint: ProceedingJoinPoint, | ||
signature: MethodSignature, | ||
annotation: PreventDuplicateRequest, | ||
): String { | ||
val method = signature.method | ||
val expression = parser.parseExpression(annotation.key) | ||
val context = | ||
MethodBasedEvaluationContext( | ||
joinPoint.target, | ||
method, | ||
joinPoint.args, | ||
parameterNameDiscoverer, | ||
) | ||
val parsedValue = | ||
expression.getValue(context, String::class.java) | ||
?: throw ServiceException( | ||
ExceptionCode.NOT_FOUNDED, | ||
"중복요청 계산에 사용될 key가 없습니다 (method: ${method.name}, annotation key: ${annotation.key})", | ||
) | ||
return "${method.name}:$parsedValue" | ||
} | ||
} |
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88 changes: 88 additions & 0 deletions
88
piikii-input-http/src/main/kotlin/com/piikii/input/http/aspect/RateLimiter.kt
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,88 @@ | ||
package com.piikii.input.http.aspect | ||
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import com.piikii.common.exception.ExceptionCode | ||
import com.piikii.common.exception.ServiceException | ||
import com.piikii.output.redis.RedisLockRepository | ||
import org.aspectj.lang.ProceedingJoinPoint | ||
import org.aspectj.lang.annotation.Around | ||
import org.aspectj.lang.annotation.Aspect | ||
import org.aspectj.lang.reflect.MethodSignature | ||
import org.springframework.context.expression.MethodBasedEvaluationContext | ||
import org.springframework.core.DefaultParameterNameDiscoverer | ||
import org.springframework.expression.spel.standard.SpelExpressionParser | ||
import org.springframework.stereotype.Component | ||
import java.time.Duration | ||
import java.time.Instant | ||
import java.time.temporal.ChronoUnit | ||
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@Target(AnnotationTarget.FUNCTION) | ||
@Retention(AnnotationRetention.RUNTIME) | ||
annotation class RateLimiter( | ||
val key: String, | ||
val maxRequestCount: Long = 1, | ||
val timeUnit: ChronoUnit = ChronoUnit.SECONDS, | ||
val amount: Long = 5, | ||
) | ||
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@Aspect | ||
@Component | ||
class RateLimiterAspect( | ||
private val redisLockRepository: RedisLockRepository, | ||
) { | ||
private val parser = SpelExpressionParser() | ||
private val parameterNameDiscoverer = DefaultParameterNameDiscoverer() | ||
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@Around("@annotation(RateLimiter)") | ||
fun rateLimiter(joinPoint: ProceedingJoinPoint): Any? { | ||
val signature = joinPoint.signature as MethodSignature | ||
val method = signature.method | ||
val annotation = method.getAnnotation(RateLimiter::class.java) | ||
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val key = "rate_limit:${method.name}" | ||
val epochSecond = Instant.now().epochSecond.toDouble() | ||
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val member = generateMember( | ||
memberSuffix = epochSecond.toString(), | ||
joinPoint = joinPoint, | ||
signature = signature, | ||
annotation = annotation | ||
) | ||
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val ttl = Duration.of(annotation.amount, annotation.timeUnit) | ||
redisLockRepository.removeOutOfWindow(key, epochSecond, ttl) | ||
if (redisLockRepository.getCountRequestsInWindow(key) >= annotation.maxRequestCount) { | ||
throw ServiceException(ExceptionCode.REQUEST_LIMIT_EXCEEDED_IN_TIME_WINDOW) | ||
} | ||
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redisLockRepository.increaseRequestsInWindow(key, member, epochSecond, ttl) | ||
return joinPoint.proceed() | ||
} | ||
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/** | ||
* 요청 인식용 Member parsing | ||
* - using SpEL parsed value | ||
*/ | ||
private fun generateMember( | ||
memberSuffix: String, | ||
joinPoint: ProceedingJoinPoint, | ||
signature: MethodSignature, | ||
annotation: RateLimiter, | ||
): String { | ||
val method = signature.method | ||
val expression = parser.parseExpression(annotation.key) | ||
val context = | ||
MethodBasedEvaluationContext( | ||
joinPoint.target, | ||
method, | ||
joinPoint.args, | ||
parameterNameDiscoverer, | ||
) | ||
val member = expression.getValue(context, String::class.java) | ||
?: throw ServiceException( | ||
ExceptionCode.NOT_FOUNDED, | ||
"RateLimit member 추출에 실패했습니다 (method: ${method.name}, annotation key: ${annotation.key})", | ||
) | ||
return "$member:$memberSuffix" | ||
} | ||
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} |
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