Module org.elasticsearch.server

Package org.elasticsearch.cluster.routing

Class IndexRouting

java.lang.Object

org.elasticsearch.cluster.routing.IndexRouting

Direct Known Subclasses:

IndexRouting.ExtractFromSource

public abstract class IndexRouting
extends Object

Generates the shard id for (id, routing) pairs.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	IndexRouting.ExtractFromSource

Field Summary

Fields

Modifier and Type	Field	Description
protected final String	indexName

Method Summary

Modifier and Type	Method	Description
void	checkIndexSplitAllowed()	Check if the _split index operation is allowed for an index
abstract void	collectSearchShards(String routing, IntConsumer consumer)	Collect all of the shard ids that *may* contain documents with the provided routing.
abstract int	deleteShard(String id, String routing)	Called when deleting a document to generate the shard id that should contain a document with the provided _id and (optional) _routing.
static IndexRouting	fromIndexMetadata(IndexMetadata metadata)	Build the routing from IndexMetadata.
abstract int	getShard(String id, String routing)	Called when getting a document to generate the shard id that should contain a document with the provided _id and (optional) _routing.
protected final int	hashToShardId(int hash)	Convert a hash generated from an (id, routing) pair into a shard id.
abstract int	indexShard(String id, String routing, XContentType sourceType, BytesReference source)	Called when indexing a document to generate the shard id that should contain a document with the provided parameters.
abstract void	process(IndexRequest indexRequest)
abstract int	updateShard(String id, String routing)	Called when updating a document to generate the shard id that should contain a document with the provided _id and (optional) _routing.

Methods inherited from class java.lang.Object

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

Field Details

indexName

protected final String indexName

Method Details

fromIndexMetadata

public static IndexRouting fromIndexMetadata(IndexMetadata metadata)

Build the routing from IndexMetadata.

process

public abstract void process(IndexRequest indexRequest)

indexShard

public abstract int indexShard(String id,
 @Nullable
 String routing,
 XContentType sourceType,
 BytesReference source)

Called when indexing a document to generate the shard id that should contain a document with the provided parameters.

updateShard

public abstract int updateShard(String id,
 @Nullable
 String routing)

Called when updating a document to generate the shard id that should contain a document with the provided _id and (optional) _routing.

deleteShard

public abstract int deleteShard(String id,
 @Nullable
 String routing)

Called when deleting a document to generate the shard id that should contain a document with the provided _id and (optional) _routing.

getShard

public abstract int getShard(String id,
 @Nullable
 String routing)

Called when getting a document to generate the shard id that should contain a document with the provided _id and (optional) _routing.

collectSearchShards

public abstract void collectSearchShards(String routing,
 IntConsumer consumer)

Collect all of the shard ids that *may* contain documents with the provided routing. Indices with a routing_partition will collect more than one shard. Indices without a partition will collect the same shard id as would be returned by getShard(java.lang.String, java.lang.String).

Note: This is called for any search-like requests that have a routing specified but only if they have a routing specified. If they do not have a routing they just use all shards in the index.

hashToShardId

protected final int hashToShardId(int hash)

Convert a hash generated from an (id, routing) pair into a shard id.

checkIndexSplitAllowed

public void checkIndexSplitAllowed()

Check if the _split index operation is allowed for an index

Throws:

IllegalArgumentException - if the operation is not allowed