org.elasticsearch.cluster.routing

Class RoutingTable

java.lang.Object

org.elasticsearch.cluster.routing.RoutingTable

All Implemented Interfaces:

java.lang.Iterable<IndexRoutingTable>, Diffable<RoutingTable>, Writeable

public class RoutingTable
extends java.lang.Object
implements java.lang.Iterable<IndexRoutingTable>, Diffable<RoutingTable>

Represents a global cluster-wide routing table for all indices including the version of the current routing state.

See Also:

IndexRoutingTable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RoutingTable.Builder Builder for the routing table.

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Field Summary

Fields

Modifier and Type	Field and Description
static RoutingTable	EMPTY_ROUTING_TABLE

Method Summary

Modifier and Type	Method and Description
GroupShardsIterator<ShardIterator>	activePrimaryShardsGrouped(java.lang.String[] indices, boolean includeEmpty) All the *active* primary shards for the provided indices grouped (each group is a single element, consisting of the primary shard).
GroupShardsIterator	allActiveShardsGrouped(java.lang.String[] indices, boolean includeEmpty)
GroupShardsIterator	allActiveShardsGrouped(java.lang.String[] indices, boolean includeEmpty, boolean includeRelocationTargets) Return GroupShardsIterator where each active shard routing has it's own shard iterator.
GroupShardsIterator<ShardIterator>	allAssignedShardsGrouped(java.lang.String[] indices, boolean includeEmpty)
GroupShardsIterator<ShardIterator>	allAssignedShardsGrouped(java.lang.String[] indices, boolean includeEmpty, boolean includeRelocationTargets) Return GroupShardsIterator where each assigned shard routing has it's own shard iterator.
java.util.List<ShardRouting>	allShards() All the shards (replicas) for all indices in this routing table.
java.util.List<ShardRouting>	allShards(java.lang.String index) All the shards (replicas) for the provided index.
ShardsIterator	allShards(java.lang.String[] indices)
ShardsIterator	allShardsIncludingRelocationTargets(java.lang.String[] indices)
static RoutingTable.Builder	builder()
static RoutingTable.Builder	builder(RoutingTable routingTable)
Diff<RoutingTable>	diff(RoutingTable previousState) Returns serializable object representing differences between this and previousState
ShardRouting	getByAllocationId(ShardId shardId, java.lang.String allocationId)
ImmutableOpenMap<java.lang.String,IndexRoutingTable>	getIndicesRouting()
boolean	hasIndex(Index index)
boolean	hasIndex(java.lang.String index)
IndexRoutingTable	index(Index index)
IndexRoutingTable	index(java.lang.String index)
ImmutableOpenMap<java.lang.String,IndexRoutingTable>	indicesRouting()
java.util.Iterator<IndexRoutingTable>	iterator()
static Diff<RoutingTable>	readDiffFrom(StreamInput in)
static RoutingTable	readFrom(StreamInput in)
IndexShardRoutingTable	shardRoutingTable(ShardId shardId) All shards for the provided ShardId
IndexShardRoutingTable	shardRoutingTable(java.lang.String index, int shardId) All shards for the provided index and shard id
IndexShardRoutingTable	shardRoutingTableOrNull(ShardId shardId)
java.util.List<ShardRouting>	shardsWithState(ShardRoutingState state)
java.lang.String	toString()
boolean	validate(MetaData metaData)
long	version() Returns the version of the RoutingTable.
void	writeTo(StreamOutput out) Write this into the StreamOutput.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

EMPTY_ROUTING_TABLE

public static final RoutingTable EMPTY_ROUTING_TABLE

Method Detail

version

public long version()

Returns the version of the RoutingTable.

Returns:

version of the RoutingTable

iterator

public java.util.Iterator<IndexRoutingTable> iterator()

Specified by:

iterator in interface java.lang.Iterable<IndexRoutingTable>

hasIndex

public boolean hasIndex(java.lang.String index)

hasIndex

public boolean hasIndex(Index index)

index

public IndexRoutingTable index(java.lang.String index)

index

public IndexRoutingTable index(Index index)

indicesRouting

public ImmutableOpenMap<java.lang.String,IndexRoutingTable> indicesRouting()

getIndicesRouting

public ImmutableOpenMap<java.lang.String,IndexRoutingTable> getIndicesRouting()

shardRoutingTable

public IndexShardRoutingTable shardRoutingTable(java.lang.String index,
                                                int shardId)

All shards for the provided index and shard id

Returns:

All the shard routing entries for the given index and shard id

Throws:

IndexNotFoundException - if provided index does not exist

ShardNotFoundException - if provided shard id is unknown

shardRoutingTable

public IndexShardRoutingTable shardRoutingTable(ShardId shardId)

All shards for the provided ShardId

Returns:

All the shard routing entries for the given index and shard id

Throws:

IndexNotFoundException - if provided index does not exist

ShardNotFoundException - if provided shard id is unknown

shardRoutingTableOrNull

public IndexShardRoutingTable shardRoutingTableOrNull(ShardId shardId)

getByAllocationId

@Nullable
public ShardRouting getByAllocationId(ShardId shardId,
                                                java.lang.String allocationId)

validate

public boolean validate(MetaData metaData)

shardsWithState

public java.util.List<ShardRouting> shardsWithState(ShardRoutingState state)

allShards

public java.util.List<ShardRouting> allShards()

All the shards (replicas) for all indices in this routing table.

Returns:

All the shards

allShards

public java.util.List<ShardRouting> allShards(java.lang.String index)

All the shards (replicas) for the provided index.

Parameters:

index - The index to return all the shards (replicas).

Returns:

All the shards matching the specific index

Throws:

IndexNotFoundException - If the index passed does not exists

allActiveShardsGrouped

public GroupShardsIterator allActiveShardsGrouped(java.lang.String[] indices,
                                                  boolean includeEmpty)

allActiveShardsGrouped

public GroupShardsIterator allActiveShardsGrouped(java.lang.String[] indices,
                                                  boolean includeEmpty,
                                                  boolean includeRelocationTargets)

Return GroupShardsIterator where each active shard routing has it's own shard iterator.

Parameters:

includeEmpty - if true, a shard iterator will be added for non-assigned shards as well

includeRelocationTargets - if true, an extra shard iterator will be added for relocating shards. The extra iterator contains a single ShardRouting pointing at the relocating target

allAssignedShardsGrouped

public GroupShardsIterator<ShardIterator> allAssignedShardsGrouped(java.lang.String[] indices,
                                                                   boolean includeEmpty)

allAssignedShardsGrouped

public GroupShardsIterator<ShardIterator> allAssignedShardsGrouped(java.lang.String[] indices,
                                                                   boolean includeEmpty,
                                                                   boolean includeRelocationTargets)

Return GroupShardsIterator where each assigned shard routing has it's own shard iterator.

Parameters:

includeEmpty - if true, a shard iterator will be added for non-assigned shards as well

includeRelocationTargets - if true, an extra shard iterator will be added for relocating shards. The extra iterator contains a single ShardRouting pointing at the relocating target

allShards

public ShardsIterator allShards(java.lang.String[] indices)

allShardsIncludingRelocationTargets

public ShardsIterator allShardsIncludingRelocationTargets(java.lang.String[] indices)

activePrimaryShardsGrouped

public GroupShardsIterator<ShardIterator> activePrimaryShardsGrouped(java.lang.String[] indices,
                                                                     boolean includeEmpty)

All the *active* primary shards for the provided indices grouped (each group is a single element, consisting of the primary shard). This is handy for components that expect to get group iterators, but still want in some cases to iterate over all primary shards (and not just one shard in replication group).

Parameters:

indices - The indices to return all the shards (replicas)

Returns:

All the primary shards grouped into a single shard element group each

Throws:

IndexNotFoundException - If an index passed does not exists

diff

public Diff<RoutingTable> diff(RoutingTable previousState)

Description copied from interface: Diffable

Returns serializable object representing differences between this and previousState

Specified by:

diff in interface Diffable<RoutingTable>

readDiffFrom

public static Diff<RoutingTable> readDiffFrom(StreamInput in)
                                       throws java.io.IOException

Throws:

java.io.IOException

readFrom

public static RoutingTable readFrom(StreamInput in)
                             throws java.io.IOException

Throws:

java.io.IOException

writeTo

public void writeTo(StreamOutput out)
             throws java.io.IOException

Description copied from interface: Writeable

Write this into the StreamOutput.

Specified by:

writeTo in interface Writeable

Throws:

java.io.IOException

builder

public static RoutingTable.Builder builder()

builder

public static RoutingTable.Builder builder(RoutingTable routingTable)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object