Package org.elasticsearch.cluster.routing.allocation.command

Class AbstractAllocateAllocationCommand

java.lang.Object

org.elasticsearch.cluster.routing.allocation.command.AbstractAllocateAllocationCommand

All Implemented Interfaces:

AllocationCommand, NamedWriteable, Writeable, ToXContent, ToXContentObject

Direct Known Subclasses:

AllocateReplicaAllocationCommand, BasePrimaryAllocationCommand

public abstract class AbstractAllocateAllocationCommand
extends Object
implements AllocationCommand

Abstract base class for allocating an unassigned shard to a node

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractAllocateAllocationCommand.Builder<T extends AbstractAllocateAllocationCommand>	Works around ObjectParser not supporting constructor arguments.

Nested classes/interfaces inherited from interface org.elasticsearch.xcontent.ToXContent

ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.Params

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	Description
protected final String	index
protected final String	node
protected final int	shardId

Fields inherited from interface org.elasticsearch.xcontent.ToXContent

EMPTY_PARAMS

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractAllocateAllocationCommand(String index, int shardId, String node)
protected	AbstractAllocateAllocationCommand(StreamInput in)	Read from a stream.

Method Summary

Modifier and Type	Method	Description
protected static <T extends AbstractAllocateAllocationCommand.Builder<?>> ObjectParser<T,Void>	createAllocateParser(String command)
boolean	equals(Object obj)
protected RerouteExplanation	explainOrThrowMissingRoutingNode(RoutingAllocation allocation, boolean explain, DiscoveryNode discoNode)	Handle case where a disco node cannot be found in the routing table.
protected RerouteExplanation	explainOrThrowRejectedCommand(boolean explain, RoutingAllocation allocation, RuntimeException rte)	Utility method for rejecting the current allocation command based on provided exception
protected RerouteExplanation	explainOrThrowRejectedCommand(boolean explain, RoutingAllocation allocation, String reason)	Utility method for rejecting the current allocation command based on provided reason
protected void	extraXContent(XContentBuilder builder)
int	hashCode()
String	index()	Get the index name
protected void	initializeUnassignedShard(RoutingAllocation allocation, RoutingNodes routingNodes, RoutingNode routingNode, ShardRouting shardRouting)	Initializes an unassigned shard on a node and removes it from the unassigned
protected void	initializeUnassignedShard(RoutingAllocation allocation, RoutingNodes routingNodes, RoutingNode routingNode, ShardRouting shardRouting, UnassignedInfo unassignedInfo, RecoverySource recoverySource)	Initializes an unassigned shard on a node and removes it from the unassigned
String	node()	Get the id of the node
int	shardId()	Get the shard id
XContentBuilder	toXContent(XContentBuilder builder, ToXContent.Params params)
void	writeTo(StreamOutput out)	Write this into the StreamOutput.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.cluster.routing.allocation.command.AllocationCommand

execute, getMessage, getWriteableName, name

Methods inherited from interface org.elasticsearch.xcontent.ToXContentObject

isFragment

Field Details

index

protected final String index

shardId

protected final int shardId

node

protected final String node

Constructor Details

AbstractAllocateAllocationCommand

protected AbstractAllocateAllocationCommand(String index,
 int shardId,
 String node)

AbstractAllocateAllocationCommand

protected AbstractAllocateAllocationCommand(StreamInput in)
                                     throws IOException

Read from a stream.

Throws:

IOException

Method Details

createAllocateParser

protected static <T extends AbstractAllocateAllocationCommand.Builder<?>>
ObjectParser<T,Void> createAllocateParser(String command)

writeTo

public void writeTo(StreamOutput out)
             throws IOException

Description copied from interface: Writeable

Write this into the StreamOutput.

Specified by:

writeTo in interface Writeable

Throws:

IOException

index

public String index()

Get the index name

Returns:

name of the index

shardId

public int shardId()

Get the shard id

Returns:

id of the shard

node

public String node()

Get the id of the node

Returns:

id of the node

explainOrThrowMissingRoutingNode

protected RerouteExplanation explainOrThrowMissingRoutingNode(RoutingAllocation allocation,
 boolean explain,
 DiscoveryNode discoNode)

Handle case where a disco node cannot be found in the routing table. Usually means that it's not a data node.

explainOrThrowRejectedCommand

protected RerouteExplanation explainOrThrowRejectedCommand(boolean explain,
 RoutingAllocation allocation,
 String reason)

Utility method for rejecting the current allocation command based on provided reason

explainOrThrowRejectedCommand

protected RerouteExplanation explainOrThrowRejectedCommand(boolean explain,
 RoutingAllocation allocation,
 RuntimeException rte)

Utility method for rejecting the current allocation command based on provided exception

initializeUnassignedShard

protected void initializeUnassignedShard(RoutingAllocation allocation,
 RoutingNodes routingNodes,
 RoutingNode routingNode,
 ShardRouting shardRouting)

Initializes an unassigned shard on a node and removes it from the unassigned

Parameters:

allocation - the allocation

routingNodes - the routing nodes

routingNode - the node to initialize it to

shardRouting - the shard routing that is to be matched in unassigned shards

initializeUnassignedShard

protected void initializeUnassignedShard(RoutingAllocation allocation,
 RoutingNodes routingNodes,
 RoutingNode routingNode,
 ShardRouting shardRouting,
 @Nullable
 UnassignedInfo unassignedInfo,
 @Nullable
 RecoverySource recoverySource)

Initializes an unassigned shard on a node and removes it from the unassigned

Parameters:

allocation - the allocation

routingNodes - the routing nodes

routingNode - the node to initialize it to

shardRouting - the shard routing that is to be matched in unassigned shards

unassignedInfo - unassigned info to override

recoverySource - recovery source to override

toXContent

public XContentBuilder toXContent(XContentBuilder builder,
 ToXContent.Params params)
                           throws IOException

Specified by:

toXContent in interface ToXContent

Throws:

IOException

extraXContent

protected void extraXContent(XContentBuilder builder)
                      throws IOException

Throws:

IOException

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object