com.amazonaws.services.kinesis.clientlibrary.lib.worker

Class ParentsFirstShardPrioritization

java.lang.Object

com.amazonaws.services.kinesis.clientlibrary.lib.worker.ParentsFirstShardPrioritization

All Implemented Interfaces:

ShardPrioritization

public class ParentsFirstShardPrioritization
extends Object
implements ShardPrioritization

Shard Prioritization that prioritizes parent shards first. It also limits number of shards that will be available for initialization based on their depth. It doesn't make a lot of sense to work on a shard that has too many unfinished parents.

Constructor Summary

Constructors

Constructor and Description
ParentsFirstShardPrioritization(int maxDepth) Creates ParentFirst prioritization with filtering based on depth of the shard.

Method Summary

Modifier and Type	Method and Description
List<com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardInfo>	prioritize(List<com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardInfo> original) Returns new list of shards ordered based on their priority.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ParentsFirstShardPrioritization

public ParentsFirstShardPrioritization(int maxDepth)

Creates ParentFirst prioritization with filtering based on depth of the shard. Shards that have depth > maxDepth will be ignored and will not be returned by this prioritization.

Parameters:

maxDepth - any shard that is deeper than max depth, will be excluded from processing

Method Detail

prioritize

public List<com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardInfo> prioritize(List<com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardInfo> original)

Description copied from interface: ShardPrioritization

Returns new list of shards ordered based on their priority. Resulted list may have fewer shards compared to original list

Specified by:

prioritize in interface ShardPrioritization

Parameters:

original - list of shards needed to be prioritized

Returns:

new list that contains only shards that should be processed