/* * Copyright 2012-2017 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 com.amazonaws.services.kinesis; import javax.annotation.Generated; import com.amazonaws.*; import com.amazonaws.regions.*; import com.amazonaws.services.kinesis.model.*; import com.amazonaws.services.kinesis.waiters.AmazonKinesisWaiters; /** * Interface for accessing Kinesis. * <p> * <b>Note:</b> Do not directly implement this interface, new methods are added to it regularly. Extend from * {@link com.amazonaws.services.kinesis.AbstractAmazonKinesis} instead. * </p> * <p> * <fullname>Amazon Kinesis Streams Service API Reference</fullname> * <p> * Amazon Kinesis Streams is a managed service that scales elastically for real time processing of streaming big data. * </p> */ @Generated("com.amazonaws:aws-java-sdk-code-generator") public interface AmazonKinesis { /** * The region metadata service name for computing region endpoints. You can use this value to retrieve metadata * (such as supported regions) of the service. * * @see RegionUtils#getRegionsForService(String) */ String ENDPOINT_PREFIX = "kinesis"; /** * Overrides the default endpoint for this client ("https://kinesis.us-east-1.amazonaws.com"). Callers can use this * method to control which AWS region they want to work with. * <p> * Callers can pass in just the endpoint (ex: "kinesis.us-east-1.amazonaws.com") or a full URL, including the * protocol (ex: "https://kinesis.us-east-1.amazonaws.com"). If the protocol is not specified here, the default * protocol from this client's {@link ClientConfiguration} will be used, which by default is HTTPS. * <p> * For more information on using AWS regions with the AWS SDK for Java, and a complete list of all available * endpoints for all AWS services, see: <a * href="http://developer.amazonwebservices.com/connect/entry.jspa?externalID=3912"> * http://developer.amazonwebservices.com/connect/entry.jspa?externalID=3912</a> * <p> * <b>This method is not threadsafe. An endpoint should be configured when the client is created and before any * service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in * transit or retrying.</b> * * @param endpoint * The endpoint (ex: "kinesis.us-east-1.amazonaws.com") or a full URL, including the protocol (ex: * "https://kinesis.us-east-1.amazonaws.com") of the region specific AWS endpoint this client will * communicate with. * @deprecated use {@link AwsClientBuilder#setEndpointConfiguration(AwsClientBuilder.EndpointConfiguration)} for * example: * {@code builder.setEndpointConfiguration(new EndpointConfiguration(endpoint, signingRegion));} */ @Deprecated void setEndpoint(String endpoint); /** * An alternative to {@link AmazonKinesis#setEndpoint(String)}, sets the regional endpoint for this client's service * calls. Callers can use this method to control which AWS region they want to work with. * <p> * By default, all service endpoints in all regions use the https protocol. To use http instead, specify it in the * {@link ClientConfiguration} supplied at construction. * <p> * <b>This method is not threadsafe. A region should be configured when the client is created and before any service * requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit * or retrying.</b> * * @param region * The region this client will communicate with. See {@link Region#getRegion(com.amazonaws.regions.Regions)} * for accessing a given region. Must not be null and must be a region where the service is available. * * @see Region#getRegion(com.amazonaws.regions.Regions) * @see Region#createClient(Class, com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration) * @see Region#isServiceSupported(String) * @deprecated use {@link AwsClientBuilder#setRegion(String)} */ @Deprecated void setRegion(Region region); /** * <p> * Adds or updates tags for the specified Amazon Kinesis stream. Each stream can have up to 10 tags. * </p> * <p> * If tags have already been assigned to the stream, <code>AddTagsToStream</code> overwrites any existing tags that * correspond to the specified tag keys. * </p> * * @param addTagsToStreamRequest * Represents the input for <code>AddTagsToStream</code>. * @return Result of the AddTagsToStream operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.AddTagsToStream * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/AddTagsToStream" target="_top">AWS API * Documentation</a> */ AddTagsToStreamResult addTagsToStream(AddTagsToStreamRequest addTagsToStreamRequest); /** * <p> * Creates an Amazon Kinesis stream. A stream captures and transports data records that are continuously emitted * from different data sources or <i>producers</i>. Scale-out within a stream is explicitly supported by means of * shards, which are uniquely identified groups of data records in a stream. * </p> * <p> * You specify and control the number of shards that a stream is composed of. Each shard can support reads up to 5 * transactions per second, up to a maximum data read total of 2 MB per second. Each shard can support writes up to * 1,000 records per second, up to a maximum data write total of 1 MB per second. You can add shards to a stream if * the amount of data input increases and you can remove shards if the amount of data input decreases. * </p> * <p> * The stream name identifies the stream. The name is scoped to the AWS account used by the application. It is also * scoped by region. That is, two streams in two different accounts can have the same name, and two streams in the * same account, but in two different regions, can have the same name. * </p> * <p> * <code>CreateStream</code> is an asynchronous operation. Upon receiving a <code>CreateStream</code> request, * Amazon Kinesis immediately returns and sets the stream status to <code>CREATING</code>. After the stream is * created, Amazon Kinesis sets the stream status to <code>ACTIVE</code>. You should perform read and write * operations only on an <code>ACTIVE</code> stream. * </p> * <p> * You receive a <code>LimitExceededException</code> when making a <code>CreateStream</code> request if you try to * do one of the following: * </p> * <ul> * <li> * <p> * Have more than five streams in the <code>CREATING</code> state at any point in time. * </p> * </li> * <li> * <p> * Create more shards than are authorized for your account. * </p> * </li> * </ul> * <p> * For the default shard limit for an AWS account, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in the * <i>Amazon Kinesis Streams Developer Guide</i>. If you need to increase this limit, <a * href="http://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html">contact AWS Support</a>. * </p> * <p> * You can use <code>DescribeStream</code> to check the stream status, which is returned in * <code>StreamStatus</code>. * </p> * <p> * <a>CreateStream</a> has a limit of 5 transactions per second per account. * </p> * * @param createStreamRequest * Represents the input for <code>CreateStream</code>. * @return Result of the CreateStream operation returned by the service. * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @sample AmazonKinesis.CreateStream * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/CreateStream" target="_top">AWS API * Documentation</a> */ CreateStreamResult createStream(CreateStreamRequest createStreamRequest); /** * Simplified method form for invoking the CreateStream operation. * * @see #createStream(CreateStreamRequest) */ CreateStreamResult createStream(String streamName, Integer shardCount); /** * <p> * Decreases the Amazon Kinesis stream's retention period, which is the length of time data records are accessible * after they are added to the stream. The minimum value of a stream's retention period is 24 hours. * </p> * <p> * This operation may result in lost data. For example, if the stream's retention period is 48 hours and is * decreased to 24 hours, any data already in the stream that is older than 24 hours is inaccessible. * </p> * * @param decreaseStreamRetentionPeriodRequest * Represents the input for <a>DecreaseStreamRetentionPeriod</a>. * @return Result of the DecreaseStreamRetentionPeriod operation returned by the service. * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @sample AmazonKinesis.DecreaseStreamRetentionPeriod * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/DecreaseStreamRetentionPeriod" * target="_top">AWS API Documentation</a> */ DecreaseStreamRetentionPeriodResult decreaseStreamRetentionPeriod(DecreaseStreamRetentionPeriodRequest decreaseStreamRetentionPeriodRequest); /** * <p> * Deletes an Amazon Kinesis stream and all its shards and data. You must shut down any applications that are * operating on the stream before you delete the stream. If an application attempts to operate on a deleted stream, * it will receive the exception <code>ResourceNotFoundException</code>. * </p> * <p> * If the stream is in the <code>ACTIVE</code> state, you can delete it. After a <code>DeleteStream</code> request, * the specified stream is in the <code>DELETING</code> state until Amazon Kinesis completes the deletion. * </p> * <p> * <b>Note:</b> Amazon Kinesis might continue to accept data read and write operations, such as <a>PutRecord</a>, * <a>PutRecords</a>, and <a>GetRecords</a>, on a stream in the <code>DELETING</code> state until the stream * deletion is complete. * </p> * <p> * When you delete a stream, any shards in that stream are also deleted, and any tags are dissociated from the * stream. * </p> * <p> * You can use the <a>DescribeStream</a> operation to check the state of the stream, which is returned in * <code>StreamStatus</code>. * </p> * <p> * <a>DeleteStream</a> has a limit of 5 transactions per second per account. * </p> * * @param deleteStreamRequest * Represents the input for <a>DeleteStream</a>. * @return Result of the DeleteStream operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.DeleteStream * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/DeleteStream" target="_top">AWS API * Documentation</a> */ DeleteStreamResult deleteStream(DeleteStreamRequest deleteStreamRequest); /** * Simplified method form for invoking the DeleteStream operation. * * @see #deleteStream(DeleteStreamRequest) */ DeleteStreamResult deleteStream(String streamName); /** * <p> * Describes the shard limits and usage for the account. * </p> * <p> * If you update your account limits, the old limits might be returned for a few minutes. * </p> * <p> * This operation has a limit of 1 transaction per second per account. * </p> * * @param describeLimitsRequest * @return Result of the DescribeLimits operation returned by the service. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.DescribeLimits * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/DescribeLimits" target="_top">AWS API * Documentation</a> */ DescribeLimitsResult describeLimits(DescribeLimitsRequest describeLimitsRequest); /** * <p> * Describes the specified Amazon Kinesis stream. * </p> * <p> * The information returned includes the stream name, Amazon Resource Name (ARN), creation time, enhanced metric * configuration, and shard map. The shard map is an array of shard objects. For each shard object, there is the * hash key and sequence number ranges that the shard spans, and the IDs of any earlier shards that played in a role * in creating the shard. Every record ingested in the stream is identified by a sequence number, which is assigned * when the record is put into the stream. * </p> * <p> * You can limit the number of shards returned by each call. For more information, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/kinesis-using-sdk-java-retrieve-shards.html">Retrieving * Shards from a Stream</a> in the <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * There are no guarantees about the chronological order shards returned. To process shards in chronological order, * use the ID of the parent shard to track the lineage to the oldest shard. * </p> * <p> * This operation has a limit of 10 transactions per second per account. * </p> * * @param describeStreamRequest * Represents the input for <code>DescribeStream</code>. * @return Result of the DescribeStream operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.DescribeStream * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/DescribeStream" target="_top">AWS API * Documentation</a> */ DescribeStreamResult describeStream(DescribeStreamRequest describeStreamRequest); /** * Simplified method form for invoking the DescribeStream operation. * * @see #describeStream(DescribeStreamRequest) */ DescribeStreamResult describeStream(String streamName); /** * Simplified method form for invoking the DescribeStream operation. * * @see #describeStream(DescribeStreamRequest) */ DescribeStreamResult describeStream(String streamName, String exclusiveStartShardId); /** * Simplified method form for invoking the DescribeStream operation. * * @see #describeStream(DescribeStreamRequest) */ DescribeStreamResult describeStream(String streamName, Integer limit, String exclusiveStartShardId); /** * <p> * Disables enhanced monitoring. * </p> * * @param disableEnhancedMonitoringRequest * Represents the input for <a>DisableEnhancedMonitoring</a>. * @return Result of the DisableEnhancedMonitoring operation returned by the service. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @sample AmazonKinesis.DisableEnhancedMonitoring * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/DisableEnhancedMonitoring" * target="_top">AWS API Documentation</a> */ DisableEnhancedMonitoringResult disableEnhancedMonitoring(DisableEnhancedMonitoringRequest disableEnhancedMonitoringRequest); /** * <p> * Enables enhanced Amazon Kinesis stream monitoring for shard-level metrics. * </p> * * @param enableEnhancedMonitoringRequest * Represents the input for <a>EnableEnhancedMonitoring</a>. * @return Result of the EnableEnhancedMonitoring operation returned by the service. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @sample AmazonKinesis.EnableEnhancedMonitoring * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/EnableEnhancedMonitoring" * target="_top">AWS API Documentation</a> */ EnableEnhancedMonitoringResult enableEnhancedMonitoring(EnableEnhancedMonitoringRequest enableEnhancedMonitoringRequest); /** * <p> * Gets data records from an Amazon Kinesis stream's shard. * </p> * <p> * Specify a shard iterator using the <code>ShardIterator</code> parameter. The shard iterator specifies the * position in the shard from which you want to start reading data records sequentially. If there are no records * available in the portion of the shard that the iterator points to, <a>GetRecords</a> returns an empty list. Note * that it might take multiple calls to get to a portion of the shard that contains records. * </p> * <p> * You can scale by provisioning multiple shards per stream while considering service limits (for more information, * see <a href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in * the <i>Amazon Kinesis Streams Developer Guide</i>). Your application should have one thread per shard, each * reading continuously from its stream. To read from a stream continually, call <a>GetRecords</a> in a loop. Use * <a>GetShardIterator</a> to get the shard iterator to specify in the first <a>GetRecords</a> call. * <a>GetRecords</a> returns a new shard iterator in <code>NextShardIterator</code>. Specify the shard iterator * returned in <code>NextShardIterator</code> in subsequent calls to <a>GetRecords</a>. Note that if the shard has * been closed, the shard iterator can't return more data and <a>GetRecords</a> returns <code>null</code> in * <code>NextShardIterator</code>. You can terminate the loop when the shard is closed, or when the shard iterator * reaches the record with the sequence number or other attribute that marks it as the last record to process. * </p> * <p> * Each data record can be up to 1 MB in size, and each shard can read up to 2 MB per second. You can ensure that * your calls don't exceed the maximum supported size or throughput by using the <code>Limit</code> parameter to * specify the maximum number of records that <a>GetRecords</a> can return. Consider your average record size when * determining this limit. * </p> * <p> * The size of the data returned by <a>GetRecords</a> varies depending on the utilization of the shard. The maximum * size of data that <a>GetRecords</a> can return is 10 MB. If a call returns this amount of data, subsequent calls * made within the next 5 seconds throw <code>ProvisionedThroughputExceededException</code>. If there is * insufficient provisioned throughput on the shard, subsequent calls made within the next 1 second throw * <code>ProvisionedThroughputExceededException</code>. Note that <a>GetRecords</a> won't return any data when it * throws an exception. For this reason, we recommend that you wait one second between calls to <a>GetRecords</a>; * however, it's possible that the application will get exceptions for longer than 1 second. * </p> * <p> * To detect whether the application is falling behind in processing, you can use the * <code>MillisBehindLatest</code> response attribute. You can also monitor the stream using CloudWatch metrics and * other mechanisms (see <a href="http://docs.aws.amazon.com/kinesis/latest/dev/monitoring.html">Monitoring</a> in * the <i>Amazon Kinesis Streams Developer Guide</i>). * </p> * <p> * Each Amazon Kinesis record includes a value, <code>ApproximateArrivalTimestamp</code>, that is set when a stream * successfully receives and stores a record. This is commonly referred to as a server-side timestamp, whereas a * client-side timestamp is set when a data producer creates or sends the record to a stream (a data producer is any * data source putting data records into a stream, for example with <a>PutRecords</a>). The timestamp has * millisecond precision. There are no guarantees about the timestamp accuracy, or that the timestamp is always * increasing. For example, records in a shard or across a stream might have timestamps that are out of order. * </p> * * @param getRecordsRequest * Represents the input for <a>GetRecords</a>. * @return Result of the GetRecords operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws ProvisionedThroughputExceededException * The request rate for the stream is too high, or the requested data is too large for the available * throughput. Reduce the frequency or size of your requests. For more information, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in * the <i>Amazon Kinesis Streams Developer Guide</i>, and <a * href="http://docs.aws.amazon.com/general/latest/gr/api-retries.html">Error Retries and Exponential * Backoff in AWS</a> in the <i>AWS General Reference</i>. * @throws ExpiredIteratorException * The provided iterator exceeds the maximum age allowed. * @sample AmazonKinesis.GetRecords * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/GetRecords" target="_top">AWS API * Documentation</a> */ GetRecordsResult getRecords(GetRecordsRequest getRecordsRequest); /** * <p> * Gets an Amazon Kinesis shard iterator. A shard iterator expires five minutes after it is returned to the * requester. * </p> * <p> * A shard iterator specifies the shard position from which to start reading data records sequentially. The position * is specified using the sequence number of a data record in a shard. A sequence number is the identifier * associated with every record ingested in the stream, and is assigned when a record is put into the stream. Each * stream has one or more shards. * </p> * <p> * You must specify the shard iterator type. For example, you can set the <code>ShardIteratorType</code> parameter * to read exactly from the position denoted by a specific sequence number by using the * <code>AT_SEQUENCE_NUMBER</code> shard iterator type, or right after the sequence number by using the * <code>AFTER_SEQUENCE_NUMBER</code> shard iterator type, using sequence numbers returned by earlier calls to * <a>PutRecord</a>, <a>PutRecords</a>, <a>GetRecords</a>, or <a>DescribeStream</a>. In the request, you can specify * the shard iterator type <code>AT_TIMESTAMP</code> to read records from an arbitrary point in time, * <code>TRIM_HORIZON</code> to cause <code>ShardIterator</code> to point to the last untrimmed record in the shard * in the system (the oldest data record in the shard), or <code>LATEST</code> so that you always read the most * recent data in the shard. * </p> * <p> * When you read repeatedly from a stream, use a <a>GetShardIterator</a> request to get the first shard iterator for * use in your first <a>GetRecords</a> request and for subsequent reads use the shard iterator returned by the * <a>GetRecords</a> request in <code>NextShardIterator</code>. A new shard iterator is returned by every * <a>GetRecords</a> request in <code>NextShardIterator</code>, which you use in the <code>ShardIterator</code> * parameter of the next <a>GetRecords</a> request. * </p> * <p> * If a <a>GetShardIterator</a> request is made too often, you receive a * <code>ProvisionedThroughputExceededException</code>. For more information about throughput limits, see * <a>GetRecords</a>, and <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in the * <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * If the shard is closed, <a>GetShardIterator</a> returns a valid iterator for the last sequence number of the * shard. Note that a shard can be closed as a result of using <a>SplitShard</a> or <a>MergeShards</a>. * </p> * <p> * <a>GetShardIterator</a> has a limit of 5 transactions per second per account per open shard. * </p> * * @param getShardIteratorRequest * Represents the input for <code>GetShardIterator</code>. * @return Result of the GetShardIterator operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws ProvisionedThroughputExceededException * The request rate for the stream is too high, or the requested data is too large for the available * throughput. Reduce the frequency or size of your requests. For more information, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in * the <i>Amazon Kinesis Streams Developer Guide</i>, and <a * href="http://docs.aws.amazon.com/general/latest/gr/api-retries.html">Error Retries and Exponential * Backoff in AWS</a> in the <i>AWS General Reference</i>. * @sample AmazonKinesis.GetShardIterator * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/GetShardIterator" target="_top">AWS API * Documentation</a> */ GetShardIteratorResult getShardIterator(GetShardIteratorRequest getShardIteratorRequest); /** * Simplified method form for invoking the GetShardIterator operation. * * @see #getShardIterator(GetShardIteratorRequest) */ GetShardIteratorResult getShardIterator(String streamName, String shardId, String shardIteratorType); /** * Simplified method form for invoking the GetShardIterator operation. * * @see #getShardIterator(GetShardIteratorRequest) */ GetShardIteratorResult getShardIterator(String streamName, String shardId, String shardIteratorType, String startingSequenceNumber); /** * <p> * Increases the Amazon Kinesis stream's retention period, which is the length of time data records are accessible * after they are added to the stream. The maximum value of a stream's retention period is 168 hours (7 days). * </p> * <p> * Upon choosing a longer stream retention period, this operation will increase the time period records are * accessible that have not yet expired. However, it will not make previous data that has expired (older than the * stream's previous retention period) accessible after the operation has been called. For example, if a stream's * retention period is set to 24 hours and is increased to 168 hours, any data that is older than 24 hours will * remain inaccessible to consumer applications. * </p> * * @param increaseStreamRetentionPeriodRequest * Represents the input for <a>IncreaseStreamRetentionPeriod</a>. * @return Result of the IncreaseStreamRetentionPeriod operation returned by the service. * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @sample AmazonKinesis.IncreaseStreamRetentionPeriod * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/IncreaseStreamRetentionPeriod" * target="_top">AWS API Documentation</a> */ IncreaseStreamRetentionPeriodResult increaseStreamRetentionPeriod(IncreaseStreamRetentionPeriodRequest increaseStreamRetentionPeriodRequest); /** * <p> * Lists your Amazon Kinesis streams. * </p> * <p> * The number of streams may be too large to return from a single call to <code>ListStreams</code>. You can limit * the number of returned streams using the <code>Limit</code> parameter. If you do not specify a value for the * <code>Limit</code> parameter, Amazon Kinesis uses the default limit, which is currently 10. * </p> * <p> * You can detect if there are more streams available to list by using the <code>HasMoreStreams</code> flag from the * returned output. If there are more streams available, you can request more streams by using the name of the last * stream returned by the <code>ListStreams</code> request in the <code>ExclusiveStartStreamName</code> parameter in * a subsequent request to <code>ListStreams</code>. The group of stream names returned by the subsequent request is * then added to the list. You can continue this process until all the stream names have been collected in the list. * </p> * <p> * <a>ListStreams</a> has a limit of 5 transactions per second per account. * </p> * * @param listStreamsRequest * Represents the input for <code>ListStreams</code>. * @return Result of the ListStreams operation returned by the service. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.ListStreams * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/ListStreams" target="_top">AWS API * Documentation</a> */ ListStreamsResult listStreams(ListStreamsRequest listStreamsRequest); /** * Simplified method form for invoking the ListStreams operation. * * @see #listStreams(ListStreamsRequest) */ ListStreamsResult listStreams(); /** * Simplified method form for invoking the ListStreams operation. * * @see #listStreams(ListStreamsRequest) */ ListStreamsResult listStreams(String exclusiveStartStreamName); /** * Simplified method form for invoking the ListStreams operation. * * @see #listStreams(ListStreamsRequest) */ ListStreamsResult listStreams(Integer limit, String exclusiveStartStreamName); /** * <p> * Lists the tags for the specified Amazon Kinesis stream. * </p> * * @param listTagsForStreamRequest * Represents the input for <code>ListTagsForStream</code>. * @return Result of the ListTagsForStream operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.ListTagsForStream * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/ListTagsForStream" target="_top">AWS API * Documentation</a> */ ListTagsForStreamResult listTagsForStream(ListTagsForStreamRequest listTagsForStreamRequest); /** * <p> * Merges two adjacent shards in an Amazon Kinesis stream and combines them into a single shard to reduce the * stream's capacity to ingest and transport data. Two shards are considered adjacent if the union of the hash key * ranges for the two shards form a contiguous set with no gaps. For example, if you have two shards, one with a * hash key range of 276...381 and the other with a hash key range of 382...454, then you could merge these two * shards into a single shard that would have a hash key range of 276...454. After the merge, the single child shard * receives data for all hash key values covered by the two parent shards. * </p> * <p> * <code>MergeShards</code> is called when there is a need to reduce the overall capacity of a stream because of * excess capacity that is not being used. You must specify the shard to be merged and the adjacent shard for a * stream. For more information about merging shards, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/kinesis-using-sdk-java-resharding-merge.html">Merge Two * Shards</a> in the <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * If the stream is in the <code>ACTIVE</code> state, you can call <code>MergeShards</code>. If a stream is in the * <code>CREATING</code>, <code>UPDATING</code>, or <code>DELETING</code> state, <code>MergeShards</code> returns a * <code>ResourceInUseException</code>. If the specified stream does not exist, <code>MergeShards</code> returns a * <code>ResourceNotFoundException</code>. * </p> * <p> * You can use <a>DescribeStream</a> to check the state of the stream, which is returned in * <code>StreamStatus</code>. * </p> * <p> * <code>MergeShards</code> is an asynchronous operation. Upon receiving a <code>MergeShards</code> request, Amazon * Kinesis immediately returns a response and sets the <code>StreamStatus</code> to <code>UPDATING</code>. After the * operation is completed, Amazon Kinesis sets the <code>StreamStatus</code> to <code>ACTIVE</code>. Read and write * operations continue to work while the stream is in the <code>UPDATING</code> state. * </p> * <p> * You use <a>DescribeStream</a> to determine the shard IDs that are specified in the <code>MergeShards</code> * request. * </p> * <p> * If you try to operate on too many streams in parallel using <a>CreateStream</a>, <a>DeleteStream</a>, * <code>MergeShards</code> or <a>SplitShard</a>, you will receive a <code>LimitExceededException</code>. * </p> * <p> * <code>MergeShards</code> has limit of 5 transactions per second per account. * </p> * * @param mergeShardsRequest * Represents the input for <code>MergeShards</code>. * @return Result of the MergeShards operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.MergeShards * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/MergeShards" target="_top">AWS API * Documentation</a> */ MergeShardsResult mergeShards(MergeShardsRequest mergeShardsRequest); /** * Simplified method form for invoking the MergeShards operation. * * @see #mergeShards(MergeShardsRequest) */ MergeShardsResult mergeShards(String streamName, String shardToMerge, String adjacentShardToMerge); /** * <p> * Writes a single data record into an Amazon Kinesis stream. Call <code>PutRecord</code> to send data into the * stream for real-time ingestion and subsequent processing, one record at a time. Each shard can support writes up * to 1,000 records per second, up to a maximum data write total of 1 MB per second. * </p> * <p> * You must specify the name of the stream that captures, stores, and transports the data; a partition key; and the * data blob itself. * </p> * <p> * The data blob can be any type of data; for example, a segment from a log file, geographic/location data, website * clickstream data, and so on. * </p> * <p> * The partition key is used by Amazon Kinesis to distribute data across shards. Amazon Kinesis segregates the data * records that belong to a stream into multiple shards, using the partition key associated with each data record to * determine which shard a given data record belongs to. * </p> * <p> * Partition keys are Unicode strings, with a maximum length limit of 256 characters for each key. An MD5 hash * function is used to map partition keys to 128-bit integer values and to map associated data records to shards * using the hash key ranges of the shards. You can override hashing the partition key to determine the shard by * explicitly specifying a hash value using the <code>ExplicitHashKey</code> parameter. For more information, see <a * href= * "http://docs.aws.amazon.com/kinesis/latest/dev/developing-producers-with-sdk.html#kinesis-using-sdk-java-add-data-to-stream" * >Adding Data to a Stream</a> in the <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * <code>PutRecord</code> returns the shard ID of where the data record was placed and the sequence number that was * assigned to the data record. * </p> * <p> * Sequence numbers increase over time and are specific to a shard within a stream, not across all shards within a * stream. To guarantee strictly increasing ordering, write serially to a shard and use the * <code>SequenceNumberForOrdering</code> parameter. For more information, see <a href= * "http://docs.aws.amazon.com/kinesis/latest/dev/developing-producers-with-sdk.html#kinesis-using-sdk-java-add-data-to-stream" * >Adding Data to a Stream</a> in the <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * If a <code>PutRecord</code> request cannot be processed because of insufficient provisioned throughput on the * shard involved in the request, <code>PutRecord</code> throws <code>ProvisionedThroughputExceededException</code>. * </p> * <p> * Data records are accessible for only 24 hours from the time that they are added to a stream. * </p> * * @param putRecordRequest * Represents the input for <code>PutRecord</code>. * @return Result of the PutRecord operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws ProvisionedThroughputExceededException * The request rate for the stream is too high, or the requested data is too large for the available * throughput. Reduce the frequency or size of your requests. For more information, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in * the <i>Amazon Kinesis Streams Developer Guide</i>, and <a * href="http://docs.aws.amazon.com/general/latest/gr/api-retries.html">Error Retries and Exponential * Backoff in AWS</a> in the <i>AWS General Reference</i>. * @sample AmazonKinesis.PutRecord * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/PutRecord" target="_top">AWS API * Documentation</a> */ PutRecordResult putRecord(PutRecordRequest putRecordRequest); /** * Simplified method form for invoking the PutRecord operation. * * @see #putRecord(PutRecordRequest) */ PutRecordResult putRecord(String streamName, java.nio.ByteBuffer data, String partitionKey); /** * Simplified method form for invoking the PutRecord operation. * * @see #putRecord(PutRecordRequest) */ PutRecordResult putRecord(String streamName, java.nio.ByteBuffer data, String partitionKey, String sequenceNumberForOrdering); /** * <p> * Writes multiple data records into an Amazon Kinesis stream in a single call (also referred to as a * <code>PutRecords</code> request). Use this operation to send data into the stream for data ingestion and * processing. * </p> * <p> * Each <code>PutRecords</code> request can support up to 500 records. Each record in the request can be as large as * 1 MB, up to a limit of 5 MB for the entire request, including partition keys. Each shard can support writes up to * 1,000 records per second, up to a maximum data write total of 1 MB per second. * </p> * <p> * You must specify the name of the stream that captures, stores, and transports the data; and an array of request * <code>Records</code>, with each record in the array requiring a partition key and data blob. The record size * limit applies to the total size of the partition key and data blob. * </p> * <p> * The data blob can be any type of data; for example, a segment from a log file, geographic/location data, website * clickstream data, and so on. * </p> * <p> * The partition key is used by Amazon Kinesis as input to a hash function that maps the partition key and * associated data to a specific shard. An MD5 hash function is used to map partition keys to 128-bit integer values * and to map associated data records to shards. As a result of this hashing mechanism, all data records with the * same partition key map to the same shard within the stream. For more information, see <a href= * "http://docs.aws.amazon.com/kinesis/latest/dev/developing-producers-with-sdk.html#kinesis-using-sdk-java-add-data-to-stream" * >Adding Data to a Stream</a> in the <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * Each record in the <code>Records</code> array may include an optional parameter, <code>ExplicitHashKey</code>, * which overrides the partition key to shard mapping. This parameter allows a data producer to determine explicitly * the shard where the record is stored. For more information, see <a href= * "http://docs.aws.amazon.com/kinesis/latest/dev/developing-producers-with-sdk.html#kinesis-using-sdk-java-putrecords" * >Adding Multiple Records with PutRecords</a> in the <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * The <code>PutRecords</code> response includes an array of response <code>Records</code>. Each record in the * response array directly correlates with a record in the request array using natural ordering, from the top to the * bottom of the request and response. The response <code>Records</code> array always includes the same number of * records as the request array. * </p> * <p> * The response <code>Records</code> array includes both successfully and unsuccessfully processed records. Amazon * Kinesis attempts to process all records in each <code>PutRecords</code> request. A single record failure does not * stop the processing of subsequent records. * </p> * <p> * A successfully-processed record includes <code>ShardId</code> and <code>SequenceNumber</code> values. The * <code>ShardId</code> parameter identifies the shard in the stream where the record is stored. The * <code>SequenceNumber</code> parameter is an identifier assigned to the put record, unique to all records in the * stream. * </p> * <p> * An unsuccessfully-processed record includes <code>ErrorCode</code> and <code>ErrorMessage</code> values. * <code>ErrorCode</code> reflects the type of error and can be one of the following values: * <code>ProvisionedThroughputExceededException</code> or <code>InternalFailure</code>. <code>ErrorMessage</code> * provides more detailed information about the <code>ProvisionedThroughputExceededException</code> exception * including the account ID, stream name, and shard ID of the record that was throttled. For more information about * partially successful responses, see <a href= * "http://docs.aws.amazon.com/kinesis/latest/dev/kinesis-using-sdk-java-add-data-to-stream.html#kinesis-using-sdk-java-putrecords" * >Adding Multiple Records with PutRecords</a> in the <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * By default, data records are accessible for only 24 hours from the time that they are added to an Amazon Kinesis * stream. This retention period can be modified using the <a>DecreaseStreamRetentionPeriod</a> and * <a>IncreaseStreamRetentionPeriod</a> operations. * </p> * * @param putRecordsRequest * A <code>PutRecords</code> request. * @return Result of the PutRecords operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws ProvisionedThroughputExceededException * The request rate for the stream is too high, or the requested data is too large for the available * throughput. Reduce the frequency or size of your requests. For more information, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in * the <i>Amazon Kinesis Streams Developer Guide</i>, and <a * href="http://docs.aws.amazon.com/general/latest/gr/api-retries.html">Error Retries and Exponential * Backoff in AWS</a> in the <i>AWS General Reference</i>. * @sample AmazonKinesis.PutRecords * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/PutRecords" target="_top">AWS API * Documentation</a> */ PutRecordsResult putRecords(PutRecordsRequest putRecordsRequest); /** * <p> * Removes tags from the specified Amazon Kinesis stream. Removed tags are deleted and cannot be recovered after * this operation successfully completes. * </p> * <p> * If you specify a tag that does not exist, it is ignored. * </p> * * @param removeTagsFromStreamRequest * Represents the input for <code>RemoveTagsFromStream</code>. * @return Result of the RemoveTagsFromStream operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.RemoveTagsFromStream * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/RemoveTagsFromStream" target="_top">AWS * API Documentation</a> */ RemoveTagsFromStreamResult removeTagsFromStream(RemoveTagsFromStreamRequest removeTagsFromStreamRequest); /** * <p> * Splits a shard into two new shards in the Amazon Kinesis stream to increase the stream's capacity to ingest and * transport data. <code>SplitShard</code> is called when there is a need to increase the overall capacity of a * stream because of an expected increase in the volume of data records being ingested. * </p> * <p> * You can also use <code>SplitShard</code> when a shard appears to be approaching its maximum utilization; for * example, the producers sending data into the specific shard are suddenly sending more than previously * anticipated. You can also call <code>SplitShard</code> to increase stream capacity, so that more Amazon Kinesis * applications can simultaneously read data from the stream for real-time processing. * </p> * <p> * You must specify the shard to be split and the new hash key, which is the position in the shard where the shard * gets split in two. In many cases, the new hash key might simply be the average of the beginning and ending hash * key, but it can be any hash key value in the range being mapped into the shard. For more information about * splitting shards, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/kinesis-using-sdk-java-resharding-split.html">Split a * Shard</a> in the <i>Amazon Kinesis Streams Developer Guide</i>. * </p> * <p> * You can use <a>DescribeStream</a> to determine the shard ID and hash key values for the <code>ShardToSplit</code> * and <code>NewStartingHashKey</code> parameters that are specified in the <code>SplitShard</code> request. * </p> * <p> * <code>SplitShard</code> is an asynchronous operation. Upon receiving a <code>SplitShard</code> request, Amazon * Kinesis immediately returns a response and sets the stream status to <code>UPDATING</code>. After the operation * is completed, Amazon Kinesis sets the stream status to <code>ACTIVE</code>. Read and write operations continue to * work while the stream is in the <code>UPDATING</code> state. * </p> * <p> * You can use <code>DescribeStream</code> to check the status of the stream, which is returned in * <code>StreamStatus</code>. If the stream is in the <code>ACTIVE</code> state, you can call * <code>SplitShard</code>. If a stream is in <code>CREATING</code> or <code>UPDATING</code> or * <code>DELETING</code> states, <code>DescribeStream</code> returns a <code>ResourceInUseException</code>. * </p> * <p> * If the specified stream does not exist, <code>DescribeStream</code> returns a * <code>ResourceNotFoundException</code>. If you try to create more shards than are authorized for your account, * you receive a <code>LimitExceededException</code>. * </p> * <p> * For the default shard limit for an AWS account, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in the * <i>Amazon Kinesis Streams Developer Guide</i>. If you need to increase this limit, <a * href="http://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html">contact AWS Support</a>. * </p> * <p> * If you try to operate on too many streams simultaneously using <a>CreateStream</a>, <a>DeleteStream</a>, * <a>MergeShards</a>, and/or <a>SplitShard</a>, you receive a <code>LimitExceededException</code>. * </p> * <p> * <code>SplitShard</code> has limit of 5 transactions per second per account. * </p> * * @param splitShardRequest * Represents the input for <code>SplitShard</code>. * @return Result of the SplitShard operation returned by the service. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @sample AmazonKinesis.SplitShard * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/SplitShard" target="_top">AWS API * Documentation</a> */ SplitShardResult splitShard(SplitShardRequest splitShardRequest); /** * Simplified method form for invoking the SplitShard operation. * * @see #splitShard(SplitShardRequest) */ SplitShardResult splitShard(String streamName, String shardToSplit, String newStartingHashKey); /** * <p> * Updates the shard count of the specified stream to the specified number of shards. * </p> * <p> * Updating the shard count is an asynchronous operation. Upon receiving the request, Amazon Kinesis returns * immediately and sets the status of the stream to <code>UPDATING</code>. After the update is complete, Amazon * Kinesis sets the status of the stream back to <code>ACTIVE</code>. Depending on the size of the stream, the * scaling action could take a few minutes to complete. You can continue to read and write data to your stream while * its status is <code>UPDATING</code>. * </p> * <p> * To update the shard count, Amazon Kinesis performs splits and merges and individual shards. This can cause * short-lived shards to be created, in addition to the final shards. We recommend that you double or halve the * shard count, as this results in the fewest number of splits or merges. * </p> * <p> * This operation has a rate limit of twice per rolling 24 hour period. You cannot scale above double your current * shard count, scale below half your current shard count, or exceed the shard limits for your account. * </p> * <p> * For the default limits for an AWS account, see <a * href="http://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html">Streams Limits</a> in the * <i>Amazon Kinesis Streams Developer Guide</i>. If you need to increase a limit, <a * href="http://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html">contact AWS Support</a>. * </p> * * @param updateShardCountRequest * @return Result of the UpdateShardCount operation returned by the service. * @throws InvalidArgumentException * A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information, * see the returned message. * @throws LimitExceededException * The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests * exceeds the maximum number allowed (5). * @throws ResourceInUseException * The resource is not available for this operation. For successful operation, the resource needs to be in * the <code>ACTIVE</code> state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not be specified correctly. * @sample AmazonKinesis.UpdateShardCount * @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/UpdateShardCount" target="_top">AWS API * Documentation</a> */ UpdateShardCountResult updateShardCount(UpdateShardCountRequest updateShardCountRequest); /** * Shuts down this client object, releasing any resources that might be held open. This is an optional method, and * callers are not expected to call it, but can if they want to explicitly release any open resources. Once a client * has been shutdown, it should not be used to make any more requests. */ void shutdown(); /** * Returns additional metadata for a previously executed successful request, typically used for debugging issues * where a service isn't acting as expected. This data isn't considered part of the result data returned by an * operation, so it's available through this separate, diagnostic interface. * <p> * Response metadata is only cached for a limited period of time, so if you need to access this extra diagnostic * information for an executed request, you should use this method to retrieve it as soon as possible after * executing a request. * * @param request * The originally executed request. * * @return The response metadata for the specified request, or null if none is available. */ ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request); AmazonKinesisWaiters waiters(); }