Destination CDK: Simplify AsyncStreamConsumer constructors

airbyte-cdk/java/airbyte-cdk/README.md

@@ -144,6 +144,7 @@ Maven and Gradle will automatically reference the correct (pinned) version of th
 
 | Version | Date       | Pull Request                                               | Subject                                                                                                                                                        |
 |:--------|:-----------|:-----------------------------------------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| 0.30.3  | 2024-04-12 | [\#37106](https://github.com/airbytehq/airbyte/pull/37106) | Destinations: Simplify constructors in `AsyncStreamConsumer`                                                                                                   |
 | 0.30.2  | 2024-04-12 | [\#36926](https://github.com/airbytehq/airbyte/pull/36926) | Destinations: Remove `JdbcSqlOperations#formatData`; misc changes for java interop                                                                             |
 | 0.30.1  | 2024-04-11 | [\#36919](https://github.com/airbytehq/airbyte/pull/36919) | Fix regression in sources conversion of null values                                                                                                            |
 | 0.30.0  | 2024-04-11 | [\#36974](https://github.com/airbytehq/airbyte/pull/36974) | Destinations: Pass config to jdbc sqlgenerator; allow cascade drop                                                                                             |

airbyte-cdk/java/airbyte-cdk/core/src/main/kotlin/io/airbyte/cdk/integrations/destination/async/AsyncStreamConsumer.kt

@@ -4,16 +4,13 @@
 
 package io.airbyte.cdk.integrations.destination.async
 
-import com.google.common.annotations.VisibleForTesting
 import com.google.common.base.Preconditions
 import com.google.common.base.Strings
 import io.airbyte.cdk.integrations.base.SerializedAirbyteMessageConsumer
 import io.airbyte.cdk.integrations.destination.StreamSyncSummary
 import io.airbyte.cdk.integrations.destination.async.buffers.BufferEnqueue
 import io.airbyte.cdk.integrations.destination.async.buffers.BufferManager
-import io.airbyte.cdk.integrations.destination.async.deser.DeserializationUtil
-import io.airbyte.cdk.integrations.destination.async.deser.IdentityDataTransformer
-import io.airbyte.cdk.integrations.destination.async.deser.StreamAwareDataTransformer
+import io.airbyte.cdk.integrations.destination.async.deser.AirbyteMessageDeserializer
 import io.airbyte.cdk.integrations.destination.async.function.DestinationFlushFunction
 import io.airbyte.cdk.integrations.destination.async.model.PartialAirbyteMessage
 import io.airbyte.cdk.integrations.destination.async.state.FlushFailure
@@ -44,26 +41,23 @@ private val logger = KotlinLogging.logger {}
  * memory limit governed by [GlobalMemoryManager]. Record writing is decoupled via [FlushWorkers].
  * See the other linked class for more detail.
  */
-class AsyncStreamConsumer
-@VisibleForTesting
-constructor(
+class AsyncStreamConsumer(
     outputRecordCollector: Consumer<AirbyteMessage>,
     private val onStart: OnStartFunction,
     private val onClose: OnCloseFunction,
-    flusher: DestinationFlushFunction,
+    onFlush: DestinationFlushFunction,
     private val catalog: ConfiguredAirbyteCatalog,
     private val bufferManager: BufferManager,
-    private val flushFailure: FlushFailure,
     private val defaultNamespace: Optional<String>,
-    workerPool: ExecutorService,
-    private val dataTransformer: StreamAwareDataTransformer,
-    private val deserializationUtil: DeserializationUtil,
+    private val flushFailure: FlushFailure = FlushFailure(),
+    workerPool: ExecutorService = Executors.newFixedThreadPool(5),
+    private val airbyteMessageDeserializer: AirbyteMessageDeserializer,
 ) : SerializedAirbyteMessageConsumer {
     private val bufferEnqueue: BufferEnqueue = bufferManager.bufferEnqueue
     private val flushWorkers: FlushWorkers =
         FlushWorkers(
             bufferManager.bufferDequeue,
-            flusher,
+            onFlush,
             outputRecordCollector,
             flushFailure,
             bufferManager.stateManager,
@@ -81,73 +75,7 @@ constructor(
     private var hasClosed = false
     private var hasFailed = false
 
-    constructor(
-        outputRecordCollector: Consumer<AirbyteMessage>,
-        onStart: OnStartFunction,
-        onClose: OnCloseFunction,
-        flusher: DestinationFlushFunction,
-        catalog: ConfiguredAirbyteCatalog,
-        bufferManager: BufferManager,
-        defaultNamespace: Optional<String>,
-    ) : this(
-        outputRecordCollector,
-        onStart,
-        onClose,
-        flusher,
-        catalog,
-        bufferManager,
-        FlushFailure(),
-        defaultNamespace,
-    )
-
-    constructor(
-        outputRecordCollector: Consumer<AirbyteMessage>,
-        onStart: OnStartFunction,
-        onClose: OnCloseFunction,
-        flusher: DestinationFlushFunction,
-        catalog: ConfiguredAirbyteCatalog,
-        bufferManager: BufferManager,
-        defaultNamespace: Optional<String>,
-        dataTransformer: StreamAwareDataTransformer,
-    ) : this(
-        outputRecordCollector,
-        onStart,
-        onClose,
-        flusher,
-        catalog,
-        bufferManager,
-        FlushFailure(),
-        defaultNamespace,
-        Executors.newFixedThreadPool(5),
-        dataTransformer,
-        DeserializationUtil(),
-    )
-
-    constructor(
-        outputRecordCollector: Consumer<AirbyteMessage>,
-        onStart: OnStartFunction,
-        onClose: OnCloseFunction,
-        flusher: DestinationFlushFunction,
-        catalog: ConfiguredAirbyteCatalog,
-        bufferManager: BufferManager,
-        defaultNamespace: Optional<String>,
-        workerPool: ExecutorService,
-    ) : this(
-        outputRecordCollector,
-        onStart,
-        onClose,
-        flusher,
-        catalog,
-        bufferManager,
-        FlushFailure(),
-        defaultNamespace,
-        workerPool,
-        IdentityDataTransformer(),
-        DeserializationUtil(),
-    )
-
-    @VisibleForTesting
-    constructor(
+    internal constructor(
         outputRecordCollector: Consumer<AirbyteMessage>,
         onStart: OnStartFunction,
         onClose: OnCloseFunction,
@@ -163,11 +91,10 @@ constructor(
         flusher,
         catalog,
         bufferManager,
-        flushFailure,
         defaultNamespace,
+        flushFailure,
         Executors.newFixedThreadPool(5),
-        IdentityDataTransformer(),
-        DeserializationUtil(),
+        AirbyteMessageDeserializer(),
     )
 
     @Throws(Exception::class)
@@ -183,7 +110,7 @@ constructor(
 
     @Throws(Exception::class)
     override fun accept(
-        messageString: String,
+        message: String,
         sizeInBytes: Int,
     ) {
         Preconditions.checkState(hasStarted, "Cannot accept records until consumer has started")
@@ -193,21 +120,22 @@ constructor(
          * to try to use a thread pool to partially deserialize to get record type and stream name, we can
          * do it without touching buffer manager.
          */
-        val message =
-            deserializationUtil.deserializeAirbyteMessage(
-                messageString,
-                dataTransformer,
+        val partialAirbyteMessage =
+            airbyteMessageDeserializer.deserializeAirbyteMessage(
+                message,
             )
-        if (AirbyteMessage.Type.RECORD == message.type) {
-            if (Strings.isNullOrEmpty(message.record?.namespace)) {
-                message.record?.namespace = defaultNamespace.getOrNull()
+        if (AirbyteMessage.Type.RECORD == partialAirbyteMessage.type) {
+            if (Strings.isNullOrEmpty(partialAirbyteMessage.record?.namespace)) {
+                partialAirbyteMessage.record?.namespace = defaultNamespace.getOrNull()
             }
-            validateRecord(message)
+            validateRecord(partialAirbyteMessage)
 
-            message.record?.streamDescriptor?.let { getRecordCounter(it).incrementAndGet() }
+            partialAirbyteMessage.record?.streamDescriptor?.let {
+                getRecordCounter(it).incrementAndGet()
+            }
         }
         bufferEnqueue.addRecord(
-            message,
+            partialAirbyteMessage,
             sizeInBytes + PARTIAL_DESERIALIZE_REF_BYTES,
             defaultNamespace,
         )

airbyte-cdk/java/airbyte-cdk/core/src/main/kotlin/io/airbyte/cdk/integrations/destination/async/deser/DeserializationUtil.kt → airbyte-cdk/java/airbyte-cdk/core/src/main/kotlin/io/airbyte/cdk/integrations/destination/async/deser/AirbyteMessageDeserializer.kt

@@ -7,7 +7,9 @@ import io.airbyte.cdk.integrations.destination.async.model.PartialAirbyteMessage
 import io.airbyte.commons.json.Jsons
 import io.airbyte.protocol.models.v0.AirbyteMessage
 
-class DeserializationUtil {
+class AirbyteMessageDeserializer(
+    private val dataTransformer: StreamAwareDataTransformer = IdentityDataTransformer(),
+) {
     /**
      * Deserializes to a [PartialAirbyteMessage] which can represent both a Record or a State
      * Message
@@ -16,20 +18,20 @@ class DeserializationUtil {
      * * entire serialized message string when message is a valid State Message
      * * serialized AirbyteRecordMessage when message is a valid Record Message
      *
-     * @param messageString the string to deserialize
+     * @param message the string to deserialize
      * @return PartialAirbyteMessage if the message is valid, empty otherwise
      */
     fun deserializeAirbyteMessage(
-        messageString: String?,
-        dataTransformer: StreamAwareDataTransformer,
+        message: String?,
     ): PartialAirbyteMessage {
         // TODO: This is doing some sketchy assumptions by deserializing either the whole or the
         // partial based on type.
         // Use JsonSubTypes and extend StdDeserializer to properly handle this.
         // Make immutability a first class citizen in the PartialAirbyteMessage class.
         val partial =
-            Jsons.tryDeserializeExact(messageString, PartialAirbyteMessage::class.java)
-                .orElseThrow { RuntimeException("Unable to deserialize PartialAirbyteMessage.") }
+            Jsons.tryDeserializeExact(message, PartialAirbyteMessage::class.java).orElseThrow {
+                RuntimeException("Unable to deserialize PartialAirbyteMessage.")
+            }
 
         val msgType = partial.type
         if (AirbyteMessage.Type.RECORD == msgType && partial.record?.data != null) {
@@ -50,7 +52,7 @@ class DeserializationUtil {
             // usage.
             partial.record?.data = null
         } else if (AirbyteMessage.Type.STATE == msgType) {
-            partial.withSerialized(messageString)
+            partial.withSerialized(message)
         } else {
             throw RuntimeException(String.format("Unsupported message type: %s", msgType))
         }

airbyte-cdk/java/airbyte-cdk/core/src/main/resources/version.properties

@@ -1 +1 @@
-version=0.30.2
+version=0.30.3

airbyte-cdk/java/airbyte-cdk/core/src/test/kotlin/io/airbyte/cdk/integrations/destination/async/AsyncStreamConsumerTest.kt

@@ -7,8 +7,7 @@ package io.airbyte.cdk.integrations.destination.async
 import com.fasterxml.jackson.databind.JsonNode
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings
 import io.airbyte.cdk.integrations.destination.async.buffers.BufferManager
-import io.airbyte.cdk.integrations.destination.async.deser.DeserializationUtil
-import io.airbyte.cdk.integrations.destination.async.deser.IdentityDataTransformer
+import io.airbyte.cdk.integrations.destination.async.deser.AirbyteMessageDeserializer
 import io.airbyte.cdk.integrations.destination.async.deser.StreamAwareDataTransformer
 import io.airbyte.cdk.integrations.destination.async.function.DestinationFlushFunction
 import io.airbyte.cdk.integrations.destination.async.model.PartialAirbyteMessage
@@ -125,7 +124,7 @@ class AsyncStreamConsumerTest {
     private lateinit var outputRecordCollector: Consumer<AirbyteMessage>
     private lateinit var flushFailure: FlushFailure
     private lateinit var streamAwareDataTransformer: StreamAwareDataTransformer
-    private lateinit var deserializationUtil: DeserializationUtil
+    private lateinit var airbyteMessageDeserializer: AirbyteMessageDeserializer
 
     @BeforeEach
     @Suppress("UNCHECKED_CAST")
@@ -139,20 +138,18 @@ class AsyncStreamConsumerTest {
         flushFunction = Mockito.mock(DestinationFlushFunction::class.java)
         outputRecordCollector = Mockito.mock(Consumer::class.java) as Consumer<AirbyteMessage>
         flushFailure = Mockito.mock(FlushFailure::class.java)
-        deserializationUtil = DeserializationUtil()
-        streamAwareDataTransformer = IdentityDataTransformer()
+        airbyteMessageDeserializer = AirbyteMessageDeserializer()
         consumer =
             AsyncStreamConsumer(
                 outputRecordCollector = outputRecordCollector,
                 onStart = onStart,
                 onClose = onClose,
-                flusher = flushFunction,
+                onFlush = flushFunction,
                 catalog = CATALOG,
                 bufferManager = BufferManager(),
                 flushFailure = flushFailure,
                 defaultNamespace = Optional.of("default_ns"),
-                dataTransformer = streamAwareDataTransformer,
-                deserializationUtil = deserializationUtil,
+                airbyteMessageDeserializer = airbyteMessageDeserializer,
                 workerPool = Executors.newFixedThreadPool(5),
             )
 
@@ -330,9 +327,8 @@ class AsyncStreamConsumerTest {
         val serializedAirbyteMessage = Jsons.serialize(airbyteMessage)
         val airbyteRecordString = Jsons.serialize(PAYLOAD)
         val partial =
-            deserializationUtil.deserializeAirbyteMessage(
+            airbyteMessageDeserializer.deserializeAirbyteMessage(
                 serializedAirbyteMessage,
-                streamAwareDataTransformer,
             )
         assertEquals(airbyteRecordString, partial.serialized)
     }
@@ -357,9 +353,8 @@ class AsyncStreamConsumerTest {
         val serializedAirbyteMessage = Jsons.serialize(airbyteMessage)
         val airbyteRecordString = Jsons.serialize(payload)
         val partial =
-            deserializationUtil.deserializeAirbyteMessage(
+            airbyteMessageDeserializer.deserializeAirbyteMessage(
                 serializedAirbyteMessage,
-                streamAwareDataTransformer,
             )
         assertEquals(airbyteRecordString, partial.serialized)
     }
@@ -378,9 +373,8 @@ class AsyncStreamConsumerTest {
                 )
         val serializedAirbyteMessage = Jsons.serialize(airbyteMessage)
         val partial =
-            deserializationUtil.deserializeAirbyteMessage(
+            airbyteMessageDeserializer.deserializeAirbyteMessage(
                 serializedAirbyteMessage,
-                streamAwareDataTransformer,
             )
         assertEquals(emptyMap.toString(), partial.serialized)
     }
@@ -393,9 +387,8 @@ class AsyncStreamConsumerTest {
         assertThrows(
             RuntimeException::class.java,
         ) {
-            deserializationUtil.deserializeAirbyteMessage(
+            airbyteMessageDeserializer.deserializeAirbyteMessage(
                 serializedAirbyteMessage,
-                streamAwareDataTransformer,
             )
         }
     }
@@ -404,9 +397,8 @@ class AsyncStreamConsumerTest {
     internal fun deserializeAirbyteMessageWithAirbyteState() {
         val serializedAirbyteMessage = Jsons.serialize(STATE_MESSAGE1)
         val partial =
-            deserializationUtil.deserializeAirbyteMessage(
+            airbyteMessageDeserializer.deserializeAirbyteMessage(
                 serializedAirbyteMessage,
-                streamAwareDataTransformer,
             )
         assertEquals(serializedAirbyteMessage, partial.serialized)
     }
@@ -430,9 +422,8 @@ class AsyncStreamConsumerTest {
         assertThrows(
             RuntimeException::class.java,
         ) {
-            deserializationUtil.deserializeAirbyteMessage(
+            airbyteMessageDeserializer.deserializeAirbyteMessage(
                 serializedAirbyteMessage,
-                streamAwareDataTransformer,
             )
         }
     }

airbyte-cdk/java/airbyte-cdk/db-destinations/src/main/kotlin/io/airbyte/cdk/integrations/destination/jdbc/JdbcBufferedConsumerFactory.kt

@@ -15,7 +15,7 @@ import io.airbyte.cdk.integrations.destination.NamingConventionTransformer
 import io.airbyte.cdk.integrations.destination.StreamSyncSummary
 import io.airbyte.cdk.integrations.destination.async.AsyncStreamConsumer
 import io.airbyte.cdk.integrations.destination.async.buffers.BufferManager
-import io.airbyte.cdk.integrations.destination.async.deser.DeserializationUtil
+import io.airbyte.cdk.integrations.destination.async.deser.AirbyteMessageDeserializer
 import io.airbyte.cdk.integrations.destination.async.deser.IdentityDataTransformer
 import io.airbyte.cdk.integrations.destination.async.deser.StreamAwareDataTransformer
 import io.airbyte.cdk.integrations.destination.async.model.PartialAirbyteMessage
@@ -78,11 +78,10 @@ object JdbcBufferedConsumerFactory {
             ),
             catalog,
             BufferManager((Runtime.getRuntime().maxMemory() * 0.2).toLong()),
-            FlushFailure(),
             Optional.ofNullable(defaultNamespace),
+            FlushFailure(),
             Executors.newFixedThreadPool(2),
-            dataTransformer,
-            DeserializationUtil()
+            AirbyteMessageDeserializer(dataTransformer)
         )
     }
 

airbyte-cdk/java/airbyte-cdk/s3-destinations/src/main/kotlin/io/airbyte/cdk/integrations/destination/staging/AsyncFlush.kt

@@ -25,7 +25,7 @@ import org.apache.commons.io.FileUtils
 private val logger = KotlinLogging.logger {}
 
 internal class AsyncFlush(
-    streamDescToWriteConfig: Map<StreamDescriptor, WriteConfig>,
+    private val streamDescToWriteConfig: Map<StreamDescriptor, WriteConfig>,
     private val stagingOperations: StagingOperations?,
     private val database: JdbcDatabase?,
     private val catalog: ConfiguredAirbyteCatalog?,
@@ -41,8 +41,6 @@ internal class AsyncFlush(
     override val optimalBatchSizeBytes: Long,
     private val useDestinationsV2Columns: Boolean
 ) : DestinationFlushFunction {
-    private val streamDescToWriteConfig: Map<StreamDescriptor, WriteConfig> =
-        streamDescToWriteConfig
 
     @Throws(Exception::class)
     override fun flush(decs: StreamDescriptor, stream: Stream<PartialAirbyteMessage>) {