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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.*;
import com.amazonaws.services.kinesis.waiters.AmazonKinesisWaiters;

/**
 * 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); AmazonKinesisWaiters waiters(); }





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