org.komapper.r2dbc.dsl.runner.R2dbcEntityUpsertBatchRunner.kt Maven / Gradle / Ivy

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Komapper R2DBC Module

There is a newer version: 5.0.0

package org.komapper.r2dbc.dsl.runner

import org.komapper.core.DatabaseConfig
import org.komapper.core.DryRunStatement
import org.komapper.core.dsl.context.EntityUpsertContext
import org.komapper.core.dsl.metamodel.EntityMetamodel
import org.komapper.core.dsl.runner.EntityUpsertBatchRunner
import org.komapper.r2dbc.R2dbcDatabaseConfig

internal class R2dbcEntityUpsertBatchRunner>(
    context: EntityUpsertContext,
    private val entities: List,
) : R2dbcRunner> {

    private val runner: EntityUpsertBatchRunner =
        EntityUpsertBatchRunner(context, entities)

    private val support: R2dbcEntityUpsertRunnerSupport =
        R2dbcEntityUpsertRunnerSupport(context)

    override fun check(config: DatabaseConfig) {
        runner.check(config)
    }

    override suspend fun run(config: R2dbcDatabaseConfig): List {
        if (entities.isEmpty()) return emptyList()
        val newEntities = entities.map { preUpsert(config, it) }
        val batchResults = upsert(config, newEntities)
        return batchResults.map { it.first }
    }

    private suspend fun preUpsert(config: R2dbcDatabaseConfig, entity: ENTITY): ENTITY {
        return support.preUpsert(config, entity)
    }

    private suspend fun upsert(config: R2dbcDatabaseConfig, entities: List): List> {
        val statements = entities.map { runner.buildStatement(config, it) }
        return support.upsert(config, false) { it.executeBatch(statements) }
    }

    override fun dryRun(config: DatabaseConfig): DryRunStatement {
        return runner.dryRun(config)
    }
}