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The AWS SDK for Java with support for OSGi. The AWS SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).

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/*
 * Copyright 2011-2016 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 com.amazonaws.*;
import com.amazonaws.regions.*;

import com.amazonaws.services.kinesis.model.*;

/**
 * Interface for accessing Kinesis.
 * 

* Amazon Kinesis Streams Service API Reference *

* Amazon Kinesis Streams is a managed service that scales elastically for real * time processing of streaming big data. *

*/ 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. *

* 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. *

* 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: http://developer.amazonwebservices.com/connect/entry.jspa?externalID= * 3912 *

* 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. * * @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. */ 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. *

* 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. *

* 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. * * @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) */ void setRegion(Region region); /** *

* Adds or updates tags for the specified Amazon Kinesis stream. Each stream * can have up to 10 tags. *

*

* If tags have already been assigned to the stream, * AddTagsToStream overwrites any existing tags that correspond * to the specified tag keys. *

* * @param addTagsToStreamRequest * Represents the input for AddTagsToStream. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @throws ResourceInUseException * The resource is not available for this operation. For successful * operation, the resource needs to be in the ACTIVE * 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 */ AddTagsToStreamResult addTagsToStream( AddTagsToStreamRequest addTagsToStreamRequest); /** *

* Creates an Amazon Kinesis stream. A stream captures and transports data * records that are continuously emitted from different data sources or * producers. Scale-out within a stream is explicitly supported by * means of shards, which are uniquely identified groups of data records in * a stream. *

*

* 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. *

*

* 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. *

*

* CreateStream is an asynchronous operation. Upon receiving a * CreateStream request, Amazon Kinesis immediately returns and * sets the stream status to CREATING. After the stream is * created, Amazon Kinesis sets the stream status to ACTIVE. * You should perform read and write operations only on an * ACTIVE stream. *

*

* You receive a LimitExceededException when making a * CreateStream request if you try to do one of the following: *

*
    *
  • Have more than five streams in the CREATING state at any * point in time.
  • *
  • Create more shards than are authorized for your account.
  • *
*

* For the default shard limit for an AWS account, see Streams Limits in the Amazon Kinesis Streams Developer Guide. * If you need to increase this limit, contact AWS Support. *

*

* You can use DescribeStream to check the stream status, which * is returned in StreamStatus. *

*

* CreateStream has a limit of 5 transactions per second per account. *

* * @param createStreamRequest * Represents the input for CreateStream. * @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 ACTIVE * 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 */ CreateStreamResult createStream(CreateStreamRequest createStreamRequest); /** * Simplified method form for invoking the CreateStream operation. * * @see #createStream(CreateStreamRequest) */ CreateStreamResult createStream(String streamName, Integer shardCount); /** *

* 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. *

*

* 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. *

* * @param decreaseStreamRetentionPeriodRequest * Represents the input for DecreaseStreamRetentionPeriod. * @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 ACTIVE * state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not * be specified correctly, or it might not be in the * ACTIVE state if the operation requires it. * @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.DecreaseStreamRetentionPeriod */ DecreaseStreamRetentionPeriodResult decreaseStreamRetentionPeriod( DecreaseStreamRetentionPeriodRequest decreaseStreamRetentionPeriodRequest); /** *

* 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 * ResourceNotFoundException. *

*

* If the stream is in the ACTIVE state, you can delete it. * After a DeleteStream request, the specified stream is in the * DELETING state until Amazon Kinesis completes the deletion. *

*

* Note: Amazon Kinesis might continue to accept data read and write * operations, such as PutRecord, PutRecords, and * GetRecords, on a stream in the DELETING state until * the stream deletion is complete. *

*

* When you delete a stream, any shards in that stream are also deleted, and * any tags are dissociated from the stream. *

*

* You can use the DescribeStream operation to check the state of the * stream, which is returned in StreamStatus. *

*

* DeleteStream has a limit of 5 transactions per second per account. *

* * @param deleteStreamRequest * Represents the input for DeleteStream. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @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 */ DeleteStreamResult deleteStream(DeleteStreamRequest deleteStreamRequest); /** * Simplified method form for invoking the DeleteStream operation. * * @see #deleteStream(DeleteStreamRequest) */ DeleteStreamResult deleteStream(String streamName); /** *

* Describes the specified Amazon Kinesis stream. *

*

* The information about the stream includes its current status, its Amazon * Resource Name (ARN), and an array of shard objects. For each shard * object, there is information about 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. A sequence number is the * identifier associated with every record ingested in the stream. The * sequence number is assigned when a record is put into the stream. *

*

* You can limit the number of returned shards using the Limit * parameter. The number of shards in a stream may be too large to return * from a single call to DescribeStream. You can detect this by * using the HasMoreShards flag in the returned output. * HasMoreShards is set to true when there is more * data available. *

*

* DescribeStream is a paginated operation. If there are more * shards available, you can request them using the shard ID of the last * shard returned. Specify this ID in the ExclusiveStartShardId * parameter in a subsequent request to DescribeStream. *

*

* There are no guarantees about the chronological order shards returned in * DescribeStream results. If you want to process shards in * chronological order, use ParentShardId to track lineage to * the oldest shard. *

*

* DescribeStream has a limit of 10 transactions per second per * account. *

* * @param describeStreamRequest * Represents the input for DescribeStream. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @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 */ 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); /** *

* Disables enhanced monitoring. *

* * @param disableEnhancedMonitoringRequest * Represents the input for DisableEnhancedMonitoring. * @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 ACTIVE * state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not * be specified correctly, or it might not be in the * ACTIVE state if the operation requires it. * @sample AmazonKinesis.DisableEnhancedMonitoring */ DisableEnhancedMonitoringResult disableEnhancedMonitoring( DisableEnhancedMonitoringRequest disableEnhancedMonitoringRequest); /** *

* Enables enhanced Amazon Kinesis stream monitoring for shard-level * metrics. *

* * @param enableEnhancedMonitoringRequest * Represents the input for EnableEnhancedMonitoring. * @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 ACTIVE * state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not * be specified correctly, or it might not be in the * ACTIVE state if the operation requires it. * @sample AmazonKinesis.EnableEnhancedMonitoring */ EnableEnhancedMonitoringResult enableEnhancedMonitoring( EnableEnhancedMonitoringRequest enableEnhancedMonitoringRequest); /** *

* Gets data records from an Amazon Kinesis stream's shard. *

*

* Specify a shard iterator using the ShardIterator 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, * GetRecords returns an empty list. Note that it might take multiple * calls to get to a portion of the shard that contains records. *

*

* You can scale by provisioning multiple shards per stream while * considering service limits (for more information, see Streams Limits in the Amazon Kinesis Streams Developer * Guide). Your application should have one thread per shard, each * reading continuously from its stream. To read from a stream continually, * call GetRecords in a loop. Use GetShardIterator to get the * shard iterator to specify in the first GetRecords call. * GetRecords returns a new shard iterator in * NextShardIterator. Specify the shard iterator returned in * NextShardIterator in subsequent calls to GetRecords. * Note that if the shard has been closed, the shard iterator can't return * more data and GetRecords returns null in * NextShardIterator. 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. *

*

* 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 Limit parameter to * specify the maximum number of records that GetRecords can return. * Consider your average record size when determining this limit. *

*

* The size of the data returned by GetRecords varies depending on * the utilization of the shard. The maximum size of data that * GetRecords can return is 10 MB. If a call returns this amount of * data, subsequent calls made within the next 5 seconds throw * ProvisionedThroughputExceededException. If there is * insufficient provisioned throughput on the shard, subsequent calls made * within the next 1 second throw * ProvisionedThroughputExceededException. Note that * GetRecords won't return any data when it throws an exception. For * this reason, we recommend that you wait one second between calls to * GetRecords; however, it's possible that the application will get * exceptions for longer than 1 second. *

*

* To detect whether the application is falling behind in processing, you * can use the MillisBehindLatest response attribute. You can * also monitor the stream using CloudWatch metrics and other mechanisms * (see Monitoring in the Amazon Kinesis Streams Developer Guide). *

*

* Each Amazon Kinesis record includes a value, * ApproximateArrivalTimestamp, 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 * PutRecords). 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. *

* * @param getRecordsRequest * Represents the input for GetRecords. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @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 Streams Limits in the Amazon Kinesis Streams Developer * Guide, and Error Retries and Exponential Backoff in AWS in the AWS * General Reference. * @throws ExpiredIteratorException * The provided iterator exceeds the maximum age allowed. * @sample AmazonKinesis.GetRecords */ GetRecordsResult getRecords(GetRecordsRequest getRecordsRequest); /** *

* Gets an Amazon Kinesis shard iterator. A shard iterator expires five * minutes after it is returned to the requester. *

*

* 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. *

*

* You must specify the shard iterator type. For example, you can set the * ShardIteratorType parameter to read exactly from the * position denoted by a specific sequence number by using the * AT_SEQUENCE_NUMBER shard iterator type, or right after the * sequence number by using the AFTER_SEQUENCE_NUMBER shard * iterator type, using sequence numbers returned by earlier calls to * PutRecord, PutRecords, GetRecords, or * DescribeStream. In the request, you can specify the shard iterator * type AT_TIMESTAMP to read records from an arbitrary point in * time, TRIM_HORIZON to cause ShardIterator to * point to the last untrimmed record in the shard in the system (the oldest * data record in the shard), or LATEST so that you always read * the most recent data in the shard. *

*

* When you read repeatedly from a stream, use a GetShardIterator * request to get the first shard iterator for use in your first * GetRecords request and for subsequent reads use the shard iterator * returned by the GetRecords request in * NextShardIterator. A new shard iterator is returned by every * GetRecords request in NextShardIterator, which you * use in the ShardIterator parameter of the next * GetRecords request. *

*

* If a GetShardIterator request is made too often, you receive a * ProvisionedThroughputExceededException. For more information * about throughput limits, see GetRecords, and Streams Limits in the Amazon Kinesis Streams Developer Guide. *

*

* If the shard is closed, GetShardIterator returns a valid iterator * for the last sequence number of the shard. Note that a shard can be * closed as a result of using SplitShard or MergeShards. *

*

* GetShardIterator has a limit of 5 transactions per second per * account per open shard. *

* * @param getShardIteratorRequest * Represents the input for GetShardIterator. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @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 Streams Limits in the Amazon Kinesis Streams Developer * Guide, and Error Retries and Exponential Backoff in AWS in the AWS * General Reference. * @sample AmazonKinesis.GetShardIterator */ 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); /** *

* 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). *

*

* 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. *

* * @param increaseStreamRetentionPeriodRequest * Represents the input for IncreaseStreamRetentionPeriod. * @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 ACTIVE * state. * @throws ResourceNotFoundException * The requested resource could not be found. The stream might not * be specified correctly, or it might not be in the * ACTIVE state if the operation requires it. * @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.IncreaseStreamRetentionPeriod */ IncreaseStreamRetentionPeriodResult increaseStreamRetentionPeriod( IncreaseStreamRetentionPeriodRequest increaseStreamRetentionPeriodRequest); /** *

* Lists your Amazon Kinesis streams. *

*

* The number of streams may be too large to return from a single call to * ListStreams. You can limit the number of returned streams * using the Limit parameter. If you do not specify a value for * the Limit parameter, Amazon Kinesis uses the default limit, * which is currently 10. *

*

* You can detect if there are more streams available to list by using the * HasMoreStreams 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 ListStreams request in the * ExclusiveStartStreamName parameter in a subsequent request * to ListStreams. 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. *

*

* ListStreams has a limit of 5 transactions per second per account. *

* * @param listStreamsRequest * Represents the input for ListStreams. * @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 */ 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); /** *

* Lists the tags for the specified Amazon Kinesis stream. *

* * @param listTagsForStreamRequest * Represents the input for ListTagsForStream. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @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 */ ListTagsForStreamResult listTagsForStream( ListTagsForStreamRequest listTagsForStreamRequest); /** *

* 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. *

*

* MergeShards 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 Merge Two Shards in the Amazon Kinesis Streams Developer * Guide. *

*

* If the stream is in the ACTIVE state, you can call * MergeShards. If a stream is in the CREATING, * UPDATING, or DELETING state, * MergeShards returns a ResourceInUseException. * If the specified stream does not exist, MergeShards returns * a ResourceNotFoundException. *

*

* You can use DescribeStream to check the state of the stream, which * is returned in StreamStatus. *

*

* MergeShards is an asynchronous operation. Upon receiving a * MergeShards request, Amazon Kinesis immediately returns a * response and sets the StreamStatus to UPDATING. * After the operation is completed, Amazon Kinesis sets the * StreamStatus to ACTIVE. Read and write * operations continue to work while the stream is in the * UPDATING state. *

*

* You use DescribeStream to determine the shard IDs that are * specified in the MergeShards request. *

*

* If you try to operate on too many streams in parallel using * CreateStream, DeleteStream, MergeShards or * SplitShard, you will receive a LimitExceededException * . *

*

* MergeShards has limit of 5 transactions per second per * account. *

* * @param mergeShardsRequest * Represents the input for MergeShards. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @throws ResourceInUseException * The resource is not available for this operation. For successful * operation, the resource needs to be in the ACTIVE * 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 */ MergeShardsResult mergeShards(MergeShardsRequest mergeShardsRequest); /** * Simplified method form for invoking the MergeShards operation. * * @see #mergeShards(MergeShardsRequest) */ MergeShardsResult mergeShards(String streamName, String shardToMerge, String adjacentShardToMerge); /** *

* Writes a single data record into an Amazon Kinesis stream. Call * PutRecord 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. *

*

* You must specify the name of the stream that captures, stores, and * transports the data; a partition key; and the data blob itself. *

*

* 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. *

*

* 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. *

*

* 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 ExplicitHashKey parameter. For more * information, see Adding Data to a Stream in the Amazon Kinesis Streams Developer * Guide. *

*

* PutRecord returns the shard ID of where the data record was * placed and the sequence number that was assigned to the data record. *

*

* 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 * SequenceNumberForOrdering parameter. For more information, * see Adding Data to a Stream in the Amazon Kinesis Streams Developer * Guide. *

*

* If a PutRecord request cannot be processed because of * insufficient provisioned throughput on the shard involved in the request, * PutRecord throws * ProvisionedThroughputExceededException. *

*

* Data records are accessible for only 24 hours from the time that they are * added to a stream. *

* * @param putRecordRequest * Represents the input for PutRecord. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @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 Streams Limits in the Amazon Kinesis Streams Developer * Guide, and Error Retries and Exponential Backoff in AWS in the AWS * General Reference. * @sample AmazonKinesis.PutRecord */ 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); /** *

* Writes multiple data records into an Amazon Kinesis stream in a single * call (also referred to as a PutRecords request). Use this * operation to send data into the stream for data ingestion and processing. *

*

* Each PutRecords 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. *

*

* You must specify the name of the stream that captures, stores, and * transports the data; and an array of request Records, 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. *

*

* 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. *

*

* 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 Adding Data to a Stream in the Amazon Kinesis Streams Developer * Guide. *

*

* Each record in the Records array may include an optional * parameter, ExplicitHashKey, 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 Adding Multiple Records with PutRecords in the Amazon Kinesis * Streams Developer Guide. *

*

* The PutRecords response includes an array of response * Records. 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 * Records array always includes the same number of records as * the request array. *

*

* The response Records array includes both successfully and * unsuccessfully processed records. Amazon Kinesis attempts to process all * records in each PutRecords request. A single record failure * does not stop the processing of subsequent records. *

*

* A successfully-processed record includes ShardId and * SequenceNumber values. The ShardId parameter * identifies the shard in the stream where the record is stored. The * SequenceNumber parameter is an identifier assigned to the * put record, unique to all records in the stream. *

*

* An unsuccessfully-processed record includes ErrorCode and * ErrorMessage values. ErrorCode reflects the * type of error and can be one of the following values: * ProvisionedThroughputExceededException or * InternalFailure. ErrorMessage provides more * detailed information about the * ProvisionedThroughputExceededException exception including * the account ID, stream name, and shard ID of the record that was * throttled. For more information about partially successful responses, see * Adding Multiple Records with PutRecords in the Amazon Kinesis * Streams Developer Guide. *

*

* 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 DecreaseStreamRetentionPeriod and * IncreaseStreamRetentionPeriod operations. *

* * @param putRecordsRequest * A PutRecords 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, or it might not be in the * ACTIVE state if the operation requires it. * @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 Streams Limits in the Amazon Kinesis Streams Developer * Guide, and Error Retries and Exponential Backoff in AWS in the AWS * General Reference. * @sample AmazonKinesis.PutRecords */ PutRecordsResult putRecords(PutRecordsRequest putRecordsRequest); /** *

* Removes tags from the specified Amazon Kinesis stream. Removed tags are * deleted and cannot be recovered after this operation successfully * completes. *

*

* If you specify a tag that does not exist, it is ignored. *

* * @param removeTagsFromStreamRequest * Represents the input for RemoveTagsFromStream. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @throws ResourceInUseException * The resource is not available for this operation. For successful * operation, the resource needs to be in the ACTIVE * 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 */ RemoveTagsFromStreamResult removeTagsFromStream( RemoveTagsFromStreamRequest removeTagsFromStreamRequest); /** *

* Splits a shard into two new shards in the Amazon Kinesis stream to * increase the stream's capacity to ingest and transport data. * SplitShard 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. *

*

* You can also use SplitShard 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 SplitShard to increase stream * capacity, so that more Amazon Kinesis applications can simultaneously * read data from the stream for real-time processing. *

*

* 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 Split a Shard in the Amazon Kinesis Streams Developer Guide. *

*

* You can use DescribeStream to determine the shard ID and hash key * values for the ShardToSplit and * NewStartingHashKey parameters that are specified in the * SplitShard request. *

*

* SplitShard is an asynchronous operation. Upon receiving a * SplitShard request, Amazon Kinesis immediately returns a * response and sets the stream status to UPDATING. After the * operation is completed, Amazon Kinesis sets the stream status to * ACTIVE. Read and write operations continue to work while the * stream is in the UPDATING state. *

*

* You can use DescribeStream to check the status of the * stream, which is returned in StreamStatus. If the stream is * in the ACTIVE state, you can call SplitShard. * If a stream is in CREATING or UPDATING or * DELETING states, DescribeStream returns a * ResourceInUseException. *

*

* If the specified stream does not exist, DescribeStream * returns a ResourceNotFoundException. If you try to create * more shards than are authorized for your account, you receive a * LimitExceededException. *

*

* For the default shard limit for an AWS account, see Streams Limits in the Amazon Kinesis Streams Developer Guide. * If you need to increase this limit, contact AWS Support. *

*

* If you try to operate on too many streams simultaneously using * CreateStream, DeleteStream, MergeShards, and/or * SplitShard, you receive a LimitExceededException. *

*

* SplitShard has limit of 5 transactions per second per * account. *

* * @param splitShardRequest * Represents the input for SplitShard. * @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, or it might not be in the * ACTIVE state if the operation requires it. * @throws ResourceInUseException * The resource is not available for this operation. For successful * operation, the resource needs to be in the ACTIVE * 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 */ SplitShardResult splitShard(SplitShardRequest splitShardRequest); /** * Simplified method form for invoking the SplitShard operation. * * @see #splitShard(SplitShardRequest) */ SplitShardResult splitShard(String streamName, String shardToSplit, String newStartingHashKey); /** * 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. *

* 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); }





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