io.crate.metadata

Class Routing

java.lang.Object

io.crate.metadata.Routing

All Implemented Interfaces:

org.elasticsearch.common.io.stream.Streamable

public class Routing
extends java.lang.Object
implements org.elasticsearch.common.io.stream.Streamable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Routing.RoutingLocationVisitor

Constructor Summary

Constructors

Constructor and Description
Routing(java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.List<java.lang.Integer>>> locations)

Method Summary

Modifier and Type	Method and Description
boolean	containsShards(java.lang.String nodeId) returns true if the routing contains shards for any table of the given node
boolean	equals(java.lang.Object o)
static Routing	forTableOnAllNodes(TableIdent tableIdent, org.elasticsearch.cluster.node.DiscoveryNodes nodes)
static Routing	forTableOnSingleNode(TableIdent tableIdent, java.lang.String nodeId) Return a routing for the given table on the given node id.
static Routing	fromStream(org.elasticsearch.common.io.stream.StreamInput in)
int	hashCode()
boolean	hasLocations()
java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.List<java.lang.Integer>>>	locations()
void	mergeLocations(java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.List<java.lang.Integer>>> otherLocations) Update the locations of the current new routing by merging them with the that have been computed in an other routing for the same table.
java.util.Set<java.lang.String>	nodes()
int	numShards(java.lang.String nodeId) get the number of shards in this routing for a node with given nodeId
void	readFrom(org.elasticsearch.common.io.stream.StreamInput in)
java.lang.String	toString()
void	walkLocations(Routing.RoutingLocationVisitor visitor)
void	writeTo(org.elasticsearch.common.io.stream.StreamOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Routing

public Routing(java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.List<java.lang.Integer>>> locations)

Method Detail

walkLocations

public void walkLocations(Routing.RoutingLocationVisitor visitor)

fromStream

public static Routing fromStream(org.elasticsearch.common.io.stream.StreamInput in)
                          throws java.io.IOException

Throws:

java.io.IOException

locations

public java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.List<java.lang.Integer>>> locations()

Returns:

a map with the locations in the following format:

Map<nodeName (string),
Map<indexName (string), List<ShardId (int)>>>

hasLocations

public boolean hasLocations()

nodes

public java.util.Set<java.lang.String> nodes()

numShards

public int numShards(java.lang.String nodeId)

get the number of shards in this routing for a node with given nodeId

Returns:

int >= 0

containsShards

public boolean containsShards(java.lang.String nodeId)

returns true if the routing contains shards for any table of the given node

mergeLocations

public void mergeLocations(java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.List<java.lang.Integer>>> otherLocations)

Update the locations of the current new routing by merging them with the that have been computed in an other routing for the same table.

if a shard has been already routed in then: use the existing node else: use the new node

Parameters:

otherLocations - locations already routed for the same table

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

readFrom

public void readFrom(org.elasticsearch.common.io.stream.StreamInput in)
              throws java.io.IOException

Specified by:

readFrom in interface org.elasticsearch.common.io.stream.Streamable

Throws:

java.io.IOException

writeTo

public void writeTo(org.elasticsearch.common.io.stream.StreamOutput out)
             throws java.io.IOException

Specified by:

writeTo in interface org.elasticsearch.common.io.stream.Streamable

Throws:

java.io.IOException

forTableOnSingleNode

public static Routing forTableOnSingleNode(TableIdent tableIdent,
                                           java.lang.String nodeId)

Return a routing for the given table on the given node id.

forTableOnAllNodes

public static Routing forTableOnAllNodes(TableIdent tableIdent,
                                         org.elasticsearch.cluster.node.DiscoveryNodes nodes)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object