YuriGusev commented on code in PR #1: URL: https://github.com/apache/flink-connector-dynamodb/pull/1#discussion_r1008763133
########## flink-connector-dynamodb/src/main/java/org/apache/flink/streaming/connectors/dynamodb/sink/DynamoDbSinkWriter.java: ########## @@ -0,0 +1,179 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.streaming.connectors.dynamodb.sink; + +import org.apache.flink.annotation.Internal; +import org.apache.flink.api.connector.sink2.Sink.InitContext; +import org.apache.flink.connector.base.sink.writer.AsyncSinkWriter; +import org.apache.flink.connector.base.sink.writer.BufferedRequestState; +import org.apache.flink.connector.base.sink.writer.ElementConverter; +import org.apache.flink.metrics.Counter; +import org.apache.flink.metrics.groups.SinkWriterMetricGroup; +import org.apache.flink.streaming.connectors.dynamodb.util.AWSDynamoDbUtil; +import org.apache.flink.streaming.connectors.dynamodb.util.DynamoDbExceptionUtils; + +import org.apache.flink.shaded.guava30.com.google.common.collect.ImmutableMap; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import software.amazon.awssdk.services.dynamodb.DynamoDbAsyncClient; +import software.amazon.awssdk.services.dynamodb.model.BatchWriteItemRequest; +import software.amazon.awssdk.services.dynamodb.model.BatchWriteItemResponse; +import software.amazon.awssdk.services.dynamodb.model.WriteRequest; + +import java.nio.charset.StandardCharsets; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.List; +import java.util.Properties; +import java.util.concurrent.CompletableFuture; +import java.util.function.Consumer; + +/** + * Sink writer created by {@link DynamoDbSink} to write to DynamoDB. More details on the operation + * of this sink writer may be found in the doc for {@link DynamoDbSink}. More details on the + * internals of this sink writer may be found in {@link AsyncSinkWriter}. + * + * <p>The {@link DynamoDbAsyncClient} used here may be configured in the standard way for the AWS + * SDK 2.x. e.g. the provision of {@code AWS_REGION}, {@code AWS_ACCESS_KEY_ID} and {@code + * AWS_SECRET_ACCESS_KEY} through environment variables etc. + */ +@Internal +class DynamoDbSinkWriter<InputT> extends AsyncSinkWriter<InputT, DynamoDbWriteRequest> { + private static final Logger LOG = LoggerFactory.getLogger(DynamoDbSinkWriter.class); + + /* A counter for the total number of records that have encountered an error during put */ + private final Counter numRecordsOutErrorsCounter; + + /* The sink writer metric group */ + private final SinkWriterMetricGroup metrics; + + private final DynamoDbAsyncClient client; + private final boolean failOnError; + private final String tableName; + + private List<String> overwriteByPKeys; + + public DynamoDbSinkWriter( + ElementConverter<InputT, DynamoDbWriteRequest> elementConverter, + InitContext context, + int maxBatchSize, + int maxInFlightRequests, + int maxBufferedRequests, + long maxBatchSizeInBytes, + long maxTimeInBufferMS, + long maxRecordSizeInBytes, + boolean failOnError, + String tableName, + List<String> overwriteByPKeys, + Properties dynamoDbClientProperties, + Collection<BufferedRequestState<DynamoDbWriteRequest>> states) { + super( + elementConverter, + context, + maxBatchSize, + maxInFlightRequests, + maxBufferedRequests, + maxBatchSizeInBytes, + maxTimeInBufferMS, + maxRecordSizeInBytes, + states); + this.failOnError = failOnError; + this.tableName = tableName; + this.overwriteByPKeys = overwriteByPKeys; + this.metrics = context.metricGroup(); + this.numRecordsOutErrorsCounter = metrics.getNumRecordsOutErrorsCounter(); + this.client = AWSDynamoDbUtil.createClient(dynamoDbClientProperties); + } + + @Override + protected void submitRequestEntries( + List<DynamoDbWriteRequest> requestEntries, + Consumer<List<DynamoDbWriteRequest>> requestResultConsumer) { + + TableRequestsContainer container = new TableRequestsContainer(overwriteByPKeys); + requestEntries.forEach(container::put); Review Comment: I decided to inline this class into the writer, as it was not doing much anyway. -- This is an automated message from the Apache Git Service. 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