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bulk-cdk: add feature flag environments (#46692)
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64 changes: 64 additions & 0 deletions
64
airbyte-cdk/bulk/core/base/src/main/kotlin/io/airbyte/cdk/command/FeatureFlag.kt
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/* | ||
* Copyright (c) 2024 Airbyte, Inc., all rights reserved. | ||
*/ | ||
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package io.airbyte.cdk.command | ||
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import io.micronaut.context.annotation.Factory | ||
import io.micronaut.context.env.Environment | ||
import jakarta.inject.Singleton | ||
import java.util.EnumSet | ||
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/** | ||
* An enum of all feature flags, currently these are set via environment vars. | ||
* | ||
* Micronaut can inject a Set<FeatureFlag> singleton of all active feature flags. | ||
*/ | ||
enum class FeatureFlag( | ||
val micronautEnvironmentName: String, | ||
val envVar: EnvVar, | ||
val requiredEnvVarValue: String, | ||
private val transformActualValue: (String) -> String = { it } | ||
) { | ||
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/** [AIRBYTE_CLOUD_DEPLOYMENT] is active when the connector is running in Airbyte Cloud. */ | ||
AIRBYTE_CLOUD_DEPLOYMENT( | ||
micronautEnvironmentName = AIRBYTE_CLOUD_ENV, | ||
envVar = EnvVar.DEPLOYMENT_MODE, | ||
requiredEnvVarValue = "CLOUD", | ||
transformActualValue = { it.trim().uppercase() }, | ||
); | ||
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/** Environment variable binding shell declaration which activates the feature flag. */ | ||
val envVarBindingDeclaration: String | ||
get() = "${envVar.name}=$requiredEnvVarValue" | ||
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enum class EnvVar(val defaultValue: String = "") { | ||
DEPLOYMENT_MODE | ||
} | ||
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companion object { | ||
internal fun active(systemEnv: Map<String, String>): List<FeatureFlag> = | ||
entries.filter { featureFlag: FeatureFlag -> | ||
val envVar: EnvVar = featureFlag.envVar | ||
val envVarValue: String = systemEnv[envVar.name] ?: envVar.defaultValue | ||
featureFlag.transformActualValue(envVarValue) == featureFlag.requiredEnvVarValue | ||
} | ||
} | ||
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@Factory | ||
private class MicronautFactory { | ||
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@Singleton | ||
fun active(environment: Environment): Set<FeatureFlag> = | ||
EnumSet.noneOf(FeatureFlag::class.java).apply { | ||
addAll( | ||
FeatureFlag.entries.filter { | ||
environment.activeNames.contains(it.micronautEnvironmentName) | ||
} | ||
) | ||
} | ||
} | ||
} | ||
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const val AIRBYTE_CLOUD_ENV = "airbyte-cloud" |
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