content: /*
   * 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.camel.kafkaconnector.aws.v2.kinesis.common;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.camel.test.infra.common.TestUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import software.amazon.awssdk.awscore.exception.AwsServiceException;
  import software.amazon.awssdk.core.SdkBytes;
  import software.amazon.awssdk.services.kinesis.KinesisClient;
  import software.amazon.awssdk.services.kinesis.model.CreateStreamRequest;
  import software.amazon.awssdk.services.kinesis.model.CreateStreamResponse;
  import software.amazon.awssdk.services.kinesis.model.DeleteStreamRequest;
  import software.amazon.awssdk.services.kinesis.model.DeleteStreamResponse;
  import software.amazon.awssdk.services.kinesis.model.DescribeStreamRequest;
  import software.amazon.awssdk.services.kinesis.model.DescribeStreamResponse;
  import software.amazon.awssdk.services.kinesis.model.GetRecordsRequest;
  import software.amazon.awssdk.services.kinesis.model.GetRecordsResponse;
  import software.amazon.awssdk.services.kinesis.model.GetShardIteratorRequest;
  import software.amazon.awssdk.services.kinesis.model.GetShardIteratorResponse;
  import software.amazon.awssdk.services.kinesis.model.KinesisException;
  import software.amazon.awssdk.services.kinesis.model.PutRecordsRequest;
  import software.amazon.awssdk.services.kinesis.model.PutRecordsRequestEntry;
  import software.amazon.awssdk.services.kinesis.model.PutRecordsResponse;
  import software.amazon.awssdk.services.kinesis.model.Record;
  import software.amazon.awssdk.services.kinesis.model.ResourceInUseException;
  import software.amazon.awssdk.services.kinesis.model.ResourceNotFoundException;
  import software.amazon.awssdk.services.kinesis.model.Shard;
  
  import static org.junit.jupiter.api.Assertions.fail;
  
  public final class KinesisUtils {
      private static final Logger LOG = LoggerFactory.getLogger(KinesisUtils.class);
  
      private KinesisUtils() {
  
      }
  
      private static void doCreateStream(KinesisClient kinesisClient, String streamName) {
          CreateStreamRequest request = CreateStreamRequest.builder()
                  .streamName(streamName)
                  .shardCount(1)
                  .build();
  
          try {
              CreateStreamResponse response = kinesisClient.createStream(request);
  
              if (response.sdkHttpResponse().isSuccessful()) {
                  LOG.info("Stream created successfully");
              } else {
                  fail("Failed to create the stream");
              }
          } catch (KinesisException e) {
              LOG.error("Unable to create stream: {}", e.getMessage(), e);
              fail("Unable to create stream");
          }
      }
  
      public static void createStream(KinesisClient kinesisClient, String streamName) {
          try {
              LOG.info("Checking whether the stream exists already");
              int status = getStreamStatus(kinesisClient, streamName);
              LOG.info("Kinesis stream check result: {}", status);
          } catch (KinesisException e) {
              if (LOG.isTraceEnabled()) {
                  LOG.info("The stream does not exist, auto creating it: {}", e.getMessage(), e);
              } else {
                  LOG.info("The stream does not exist, auto creating it: {}", e.getMessage());
              }
  
              doCreateStream(kinesisClient, streamName);
              TestUtils.waitFor(() -> {
                  try {
                      GetRecordsRequest getRecordsRequest = KinesisUtils.getGetRecordsRequest(kinesisClient, streamName);
                      GetRecordsResponse response = kinesisClient.getRecords(getRecordsRequest);
                      List<Record> recordList = response.records();
                      LOG.debug("Checking for stream creation by reading {} records: SUCCESS!", recordList.size());
                      return true;
                  } catch (Exception exc) {
                      LOG.debug("Checking for stream creation by reading records: FAILURE, retrying..");
                      return false;
                  }
              });
          }
      }
  
      private static int getStreamStatus(KinesisClient kinesisClient, String streamName) {
          DescribeStreamRequest request = DescribeStreamRequest.builder()
                  .streamName(streamName)
                  .build();
  
          DescribeStreamResponse response = kinesisClient.describeStream(request);
  
          return response.sdkHttpResponse().statusCode();
      }
  
      public static void doDeleteStream(KinesisClient kinesisClient, String streamName) {
          DeleteStreamRequest request = DeleteStreamRequest.builder()
                  .streamName(streamName)
                  .build();
  
          DeleteStreamResponse response = kinesisClient.deleteStream(request);
  
          if (response.sdkHttpResponse().isSuccessful()) {
              LOG.info("Stream deleted successfully");
          } else {
              fail("Failed to delete the stream");
          }
      }
  
      public static void deleteStream(KinesisClient kinesisClient, String streamName) {
          try {
              LOG.info("Checking whether the stream exists already");
  
  
              DescribeStreamRequest request = DescribeStreamRequest.builder()
                      .streamName(streamName)
                      .build();
  
              DescribeStreamResponse response = kinesisClient.describeStream(request);
  
              if (response.sdkHttpResponse().isSuccessful()) {
                  LOG.info("Kinesis stream check result");
                  doDeleteStream(kinesisClient, streamName);
              }
          } catch (ResourceNotFoundException e) {
              LOG.info("The stream does not exist, skipping deletion");
          } catch (ResourceInUseException e) {
              LOG.info("The stream exist but cannot be deleted because it's in use");
              doDeleteStream(kinesisClient, streamName);
          }
      }
  
      public static void putRecords(KinesisClient kinesisClient, String streamName, int count) {
          List<PutRecordsRequestEntry> putRecordsRequestEntryList = new ArrayList<>();
  
          LOG.debug("Adding data to the Kinesis stream");
          for (int i = 0; i < count; i++) {
              String partition = String.format("partitionKey-%d", i);
  
              PutRecordsRequestEntry putRecordsRequestEntry = PutRecordsRequestEntry.builder()
                      .data(SdkBytes.fromByteArray(String.valueOf(i).getBytes()))
                      .partitionKey(partition)
                      .build();
  
              LOG.debug("Added data {} (as bytes) to partition {}", i, partition);
              putRecordsRequestEntryList.add(putRecordsRequestEntry);
          }
  
          LOG.debug("Done creating the data records");
  
          PutRecordsRequest putRecordsRequest = PutRecordsRequest
                  .builder()
                  .streamName(streamName)
                  .records(putRecordsRequestEntryList)
                  .build();
  
          int retries = 5;
          do {
              try {
                  PutRecordsResponse response = kinesisClient.putRecords(putRecordsRequest);
  
                  if (response.sdkHttpResponse().isSuccessful()) {
                      LOG.debug("Done putting the data records into the stream");
                  } else {
                      fail("Unable to put all the records into the stream");
                  }
  
                  break;
              } catch (AwsServiceException e) {
                  retries--;
  
                  /*
                   This works around the "... Cannot deserialize instance of `...AmazonKinesisException` out of NOT_AVAILABLE token
  
                   It may take some time for the local Kinesis backend to be fully up - even though the container is
                   reportedly up and running. Therefore, it tries a few more times
                   */
                  LOG.trace("Failed to put the records: {}. Retrying in 2 seconds ...", e.getMessage());
                  if (retries == 0) {
                      LOG.error("Failed to put the records: {}", e.getMessage(), e);
                      throw e;
                  }
  
                  try {
                      Thread.sleep(TimeUnit.SECONDS.toMillis(2));
                  } catch (InterruptedException ex) {
                      break;
                  }
              }
          } while (retries > 0);
      }
  
      private static boolean hasShards(KinesisClient kinesisClient, DescribeStreamRequest describeStreamRequest) {
          DescribeStreamResponse streamRes = kinesisClient.describeStream(describeStreamRequest);
  
          return !streamRes.streamDescription().shards().isEmpty();
      }
  
      private static List<Shard> getAllShards(KinesisClient kinesisClient, DescribeStreamRequest describeStreamRequest) {
          List<Shard> shards = new ArrayList<>();
          DescribeStreamResponse streamRes;
          do {
              streamRes = kinesisClient.describeStream(describeStreamRequest);
  
              shards.addAll(streamRes.streamDescription().shards());
          } while (streamRes.streamDescription().hasMoreShards());
  
          return shards;
      }
  
      public static GetRecordsRequest getGetRecordsRequest(KinesisClient kinesisClient, String streamName) {
          DescribeStreamRequest describeStreamRequest = DescribeStreamRequest.builder()
                  .streamName(streamName)
                  .build();
  
          TestUtils.waitFor(() -> hasShards(kinesisClient, describeStreamRequest));
          List<Shard> shards = getAllShards(kinesisClient, describeStreamRequest);
  
          GetShardIteratorRequest iteratorRequest = GetShardIteratorRequest.builder()
                  .streamName(streamName)
                  .shardId(shards.get(0).shardId())
                  .shardIteratorType("TRIM_HORIZON")
                  .build();
  
          GetShardIteratorResponse iteratorResponse = kinesisClient.getShardIterator(iteratorRequest);
  
          return GetRecordsRequest
                  .builder()
                  .shardIterator(iteratorResponse.shardIterator())
                  .build();
      }
  }
  