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* cosmos spark config infra
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...smos/azure-cosmos-spark_3-0_2-12/src/main/scala/com/azure/cosmos/spark/CosmosConfig.scala
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,100 @@ | ||
| // Copyright (c) Microsoft Corporation. All rights reserved. | ||
| // Licensed under the MIT License. | ||
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| package com.azure.cosmos.spark | ||
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| import java.net.URL | ||
| import java.util.Locale | ||
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| // each config category will be a case class: | ||
| // TODO moderakh more configs | ||
| //case class ClientConfig() | ||
| //case class CosmosBatchWriteConfig() | ||
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| case class CosmosAccountConfig(endpoint: String, key: String) | ||
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| object CosmosAccountConfig { | ||
| val CosmosAccountEndpointUri = CosmosConfigEntry[String](key = "spark.cosmos.accountEndpoint", | ||
| mandatory = true, | ||
| parseFromStringFunction = accountEndpointUri => { | ||
| new URL(accountEndpointUri) | ||
| accountEndpointUri | ||
| }, | ||
| helpMessage = "Cosmos DB Account Endpoint Uri") | ||
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| val CosmosKey = CosmosConfigEntry[String](key = "spark.cosmos.accountKey", | ||
| mandatory = true, | ||
| parseFromStringFunction = accountEndpointUri => accountEndpointUri, | ||
| helpMessage = "Cosmos DB Account Key") | ||
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| def parseCosmosAccountConfig(cfg: Map[String, String]): CosmosAccountConfig = { | ||
| val endpointOpt = CosmosConfigEntry.parse(cfg, CosmosAccountEndpointUri) | ||
| val key = CosmosConfigEntry.parse(cfg, CosmosKey) | ||
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| // parsing above already validated these assertions | ||
| assert(endpointOpt.isDefined) | ||
| assert(key.isDefined) | ||
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| CosmosAccountConfig(endpointOpt.get, key.get) | ||
| } | ||
| } | ||
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| case class CosmosContainerConfig(database: String, container: String) | ||
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| object CosmosContainerConfig { | ||
| val databaseName = CosmosConfigEntry[String](key = "spark.cosmos.database", | ||
| mandatory = true, | ||
| parseFromStringFunction = database => database, | ||
| helpMessage = "Cosmos DB database name") | ||
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| val containerName = CosmosConfigEntry[String](key = "spark.cosmos.container", | ||
| mandatory = true, | ||
| parseFromStringFunction = container => container, | ||
| helpMessage = "Cosmos DB container name") | ||
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| def parseCosmosContainerConfig(cfg: Map[String, String]): CosmosContainerConfig = { | ||
| val databaseOpt = CosmosConfigEntry.parse(cfg, databaseName) | ||
| val containerOpt = CosmosConfigEntry.parse(cfg, containerName) | ||
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| // parsing above already validated this | ||
| assert(databaseOpt.isDefined) | ||
| assert(containerOpt.isDefined) | ||
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| CosmosContainerConfig(databaseOpt.get, containerOpt.get) | ||
| } | ||
| } | ||
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| case class CosmosConfigEntry[T](key: String, | ||
| mandatory: Boolean, | ||
| defaultValue: Option[String] = Option.empty, | ||
| parseFromStringFunction: String => T, | ||
| helpMessage: String) { | ||
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| def parse(paramAsString: String) : T = { | ||
| try { | ||
| parseFromStringFunction(paramAsString) | ||
| } catch { | ||
| case e: Exception => throw new RuntimeException(s"invalid configuration for ${key}:${paramAsString}. Config description: ${helpMessage}", e) | ||
| } | ||
| } | ||
| } | ||
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| // TODO: moderakh how to merge user config with SparkConf application config? | ||
| object CosmosConfigEntry { | ||
| def parse[T](configuration: Map[String, String], configEntry: CosmosConfigEntry[T]): Option[T] = { | ||
| // TODO moderakh: where should we handle case sensitivity? | ||
| // we are doing this here per config parsing for now | ||
| val opt = configuration.map { case (key, value) => (key.toLowerCase(Locale.ROOT), value) }.get(configEntry.key.toLowerCase(Locale.ROOT)) | ||
| if (opt.isDefined) { | ||
| Option.apply(configEntry.parse(opt.get)) | ||
| } | ||
| else { | ||
| if (configEntry.mandatory) { | ||
| throw new RuntimeException(s"mandatory option ${configEntry.key} is missing. Config description: ${configEntry.helpMessage}") | ||
| } else { | ||
| Option.empty | ||
| } | ||
| } | ||
| } | ||
| } |
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53 changes: 53 additions & 0 deletions
53
.../azure-cosmos-spark_3-0_2-12/src/test/scala/com/azure/cosmos/spark/CosmosConfigSpec.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| // Copyright (c) Microsoft Corporation. All rights reserved. | ||
| // Licensed under the MIT License. | ||
| package com.azure.cosmos.spark | ||
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| import org.assertj.core.api.Assertions.assertThat | ||
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| class CosmosConfigSpec extends UnitSpec { | ||
| //scalastyle:off multiple.string.literals | ||
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| "account endpoint" should "be parsed" in { | ||
| val userConfig = Map( | ||
| "spark.cosmos.accountEndpoint" -> "https://localhsot:8081", | ||
| "spark.cosmos.accountKey" -> "xyz" | ||
| ) | ||
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| val endpointConfig = CosmosAccountConfig.parseCosmosAccountConfig(userConfig) | ||
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| assertThat(endpointConfig.endpoint).isEqualTo( "https://localhsot:8081") | ||
| assertThat(endpointConfig.key).isEqualTo( "xyz") | ||
| } | ||
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| "account endpoint" should "be validated" in { | ||
| val userConfig = Map( | ||
| "spark.cosmos.accountEndpoint" -> "invalidUrl", | ||
| "spark.cosmos.accountKey" -> "xyz" | ||
| ) | ||
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| try { | ||
| CosmosAccountConfig.parseCosmosAccountConfig(userConfig) | ||
| fail("invalid URL") | ||
| } catch { | ||
| case e: Exception => assertThat(e.getMessage).isEqualTo( | ||
| "invalid configuration for spark.cosmos.accountEndpoint:invalidUrl." + | ||
| " Config description: Cosmos DB Account Endpoint Uri") | ||
| } | ||
| } | ||
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| "account endpoint" should "mandatory config" in { | ||
| val userConfig = Map( | ||
| "spark.cosmos.accountKey" -> "xyz" | ||
| ) | ||
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| try { | ||
| CosmosAccountConfig.parseCosmosAccountConfig(userConfig) | ||
| fail("missing URL") | ||
| } catch { | ||
| case e: Exception => assertThat(e.getMessage).isEqualTo( | ||
| "mandatory option spark.cosmos.accountEndpoint is missing." + | ||
| " Config description: Cosmos DB Account Endpoint Uri") | ||
| } | ||
| } | ||
| //scalastyle:on multiple.string.literals | ||
| } |