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90 changes: 90 additions & 0 deletions
90
...tlin/io/airbyte/integrations/destination/mysql/typing_deduping/MysqlDestinationHandler.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| /* | ||
| * Copyright (c) 2024 Airbyte, Inc., all rights reserved. | ||
| */ | ||
|
|
||
| package io.airbyte.integrations.destination.mysql.typing_deduping | ||
|
|
||
| import com.fasterxml.jackson.databind.JsonNode | ||
| import io.airbyte.cdk.db.jdbc.JdbcDatabase | ||
| import io.airbyte.cdk.integrations.base.JavaBaseConstants | ||
| import io.airbyte.cdk.integrations.destination.jdbc.TableDefinition | ||
| import io.airbyte.cdk.integrations.destination.jdbc.typing_deduping.JdbcDestinationHandler | ||
| import io.airbyte.integrations.base.destination.typing_deduping.AirbyteProtocolType | ||
| import io.airbyte.integrations.base.destination.typing_deduping.AirbyteType | ||
| import io.airbyte.integrations.base.destination.typing_deduping.Array | ||
| import io.airbyte.integrations.base.destination.typing_deduping.StreamId | ||
| import io.airbyte.integrations.base.destination.typing_deduping.Struct | ||
| import io.airbyte.integrations.base.destination.typing_deduping.Union | ||
| import io.airbyte.integrations.base.destination.typing_deduping.UnsupportedOneOf | ||
| import io.airbyte.integrations.base.destination.typing_deduping.migrators.MinimumDestinationState | ||
| import java.sql.DatabaseMetaData | ||
| import java.sql.ResultSet | ||
| import java.util.Optional | ||
| import org.jooq.DataType | ||
| import org.jooq.SQLDialect | ||
| import org.jooq.impl.DefaultDataType | ||
|
|
||
| class MysqlDestinationHandler( | ||
| jdbcDatabase: JdbcDatabase, | ||
| rawTableDatabaseName: String, | ||
| ) : | ||
| JdbcDestinationHandler<MinimumDestinationState>( | ||
| // Mysql doesn't have an actual schema concept. | ||
| // Instead, we put each namespace into its own database. | ||
| null, | ||
| jdbcDatabase, | ||
| rawTableDatabaseName, | ||
| SQLDialect.MYSQL, | ||
| ) { | ||
| override val stateTableUpdatedAtType: DataType<*> = | ||
| DefaultDataType(SQLDialect.MYSQL, String::class.java, "datetime") | ||
| override fun toJdbcTypeName(airbyteType: AirbyteType): String = | ||
| // This is mostly identical to the postgres implementation, but swaps jsonb to json | ||
| if (airbyteType is AirbyteProtocolType) { | ||
| Companion.toJdbcTypeName(airbyteType) | ||
| } else { | ||
| when (airbyteType.typeName) { | ||
| Struct.TYPE, | ||
| UnsupportedOneOf.TYPE, | ||
| Array.TYPE -> "json" | ||
| Union.TYPE -> toJdbcTypeName((airbyteType as Union).chooseType()) | ||
| else -> throw IllegalArgumentException("Unsupported AirbyteType: $airbyteType") | ||
| } | ||
| } | ||
|
|
||
| override fun isAirbyteRawIdColumnMatch(existingTable: TableDefinition): Boolean = | ||
| // we create the raw_id column as a varchar rather than as text | ||
| "VARCHAR" == existingTable.columns[JavaBaseConstants.COLUMN_NAME_AB_RAW_ID]!!.type | ||
|
|
||
| override fun isAirbyteExtractedAtColumnMatch(existingTable: TableDefinition): Boolean = | ||
| // the raw table uses a real timestamp column for backwards-compatibility reasons | ||
| "TIMESTAMP" == existingTable.columns[JavaBaseConstants.COLUMN_NAME_AB_EXTRACTED_AT]!!.type | ||
|
|
||
| override fun toDestinationState(json: JsonNode): MinimumDestinationState = | ||
| MinimumDestinationState.Impl( | ||
| json.hasNonNull("needsSoftReset") && json["needsSoftReset"].asBoolean(), | ||
| ) | ||
|
|
||
| // Mysql doesn't have schemas. Pass the namespace as the database name. | ||
| override fun findExistingTable(id: StreamId): Optional<TableDefinition> = | ||
| findExistingTable(jdbcDatabase, id.finalNamespace, null, id.finalName) | ||
|
|
||
| override fun getTableFromMetadata(dbmetadata: DatabaseMetaData, id: StreamId): ResultSet = | ||
| dbmetadata.getTables(id.rawNamespace, null, id.rawName, null) | ||
|
|
||
| companion object { | ||
| private fun toJdbcTypeName(airbyteProtocolType: AirbyteProtocolType): String = | ||
| when (airbyteProtocolType) { | ||
| AirbyteProtocolType.STRING -> "text" | ||
| AirbyteProtocolType.NUMBER -> "decimal" | ||
| AirbyteProtocolType.INTEGER -> "bigint" | ||
| AirbyteProtocolType.BOOLEAN -> "bit" | ||
| AirbyteProtocolType.TIMESTAMP_WITH_TIMEZONE -> "varchar" | ||
| AirbyteProtocolType.TIMESTAMP_WITHOUT_TIMEZONE -> "datetime" | ||
| AirbyteProtocolType.TIME_WITH_TIMEZONE -> "varchar" | ||
| AirbyteProtocolType.TIME_WITHOUT_TIMEZONE -> "time" | ||
| AirbyteProtocolType.DATE -> "date" | ||
| AirbyteProtocolType.UNKNOWN -> "json" | ||
| } | ||
| } | ||
| } |
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