software.amazon.awssdk.enhanced.dynamodb.internal.operations.BatchWriteItemOperation Maven / Gradle / Ivy

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 software.amazon.awssdk.enhanced.dynamodb.internal.operations;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.function.Function;
import software.amazon.awssdk.annotations.SdkInternalApi;
import software.amazon.awssdk.enhanced.dynamodb.DynamoDbEnhancedClientExtension;
import software.amazon.awssdk.enhanced.dynamodb.model.BatchWriteItemEnhancedRequest;
import software.amazon.awssdk.enhanced.dynamodb.model.BatchWriteResult;
import software.amazon.awssdk.services.dynamodb.DynamoDbAsyncClient;
import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
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 software.amazon.awssdk.utils.CollectionUtils;

@SdkInternalApi
public class BatchWriteItemOperation
    implements DatabaseOperation {

    private final BatchWriteItemEnhancedRequest request;

    private BatchWriteItemOperation(BatchWriteItemEnhancedRequest request) {
        this.request = request;
    }

    public static BatchWriteItemOperation create(BatchWriteItemEnhancedRequest request) {
        return new BatchWriteItemOperation(request);
    }

    @Override
    public OperationName operationName() {
        return OperationName.BATCH_WRITE_ITEM;
    }

    @Override
    public BatchWriteItemRequest generateRequest(DynamoDbEnhancedClientExtension extension) {
        Map> allRequestItems = new HashMap<>();

        request.writeBatches().forEach(writeBatch -> {
            Collection writeRequestsForTable = allRequestItems.computeIfAbsent(
                writeBatch.tableName(),
                ignored -> new ArrayList<>());
            writeRequestsForTable.addAll(writeBatch.writeRequests());
        });

        return BatchWriteItemRequest.builder()
                                    .requestItems(
                                        Collections.unmodifiableMap(CollectionUtils.deepCopyMap(allRequestItems)))
                                    .build();
    }

    @Override
    public BatchWriteResult transformResponse(BatchWriteItemResponse response,
                                              DynamoDbEnhancedClientExtension extension) {
        return BatchWriteResult.builder().unprocessedRequests(response.unprocessedItems()).build();
    }

    @Override
    public Function serviceCall(DynamoDbClient dynamoDbClient) {
        return dynamoDbClient::batchWriteItem;
    }

    @Override
    public Function> asyncServiceCall(
        DynamoDbAsyncClient dynamoDbAsyncClient) {

        return dynamoDbAsyncClient::batchWriteItem;
    }

}