Package org.elasticsearch.action.support.replication

Class ReplicationRequest<Request extends ReplicationRequest<Request>>

java.lang.Object

org.elasticsearch.transport.TransportMessage

org.elasticsearch.transport.TransportRequest

org.elasticsearch.action.ActionRequest

org.elasticsearch.action.support.replication.ReplicationRequest<Request>

All Implemented Interfaces:

IndicesRequest, Writeable, TaskAwareRequest

Direct Known Subclasses:

BasicReplicationRequest, GlobalCheckpointSyncAction.Request, ReplicatedWriteRequest, RetentionLeaseBackgroundSyncAction.Request, ShardFlushRequest, TransportVerifyShardBeforeCloseAction.ShardRequest

public abstract class ReplicationRequest<Request extends ReplicationRequest<Request>>
extends ActionRequest
implements IndicesRequest

Requests that are run on a particular replica, first on the primary and then on the replicas like IndexRequest or TransportShardRefreshAction.

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.transport.TransportRequest

TransportRequest.Empty

Nested classes/interfaces inherited from interface org.elasticsearch.action.IndicesRequest

IndicesRequest.Replaceable

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
static TimeValue	DEFAULT_TIMEOUT
protected String	index
protected ShardId	shardId	Target shard the request should execute on.
protected TimeValue	timeout
protected ActiveShardCount	waitForActiveShards	The number of shard copies that must be active before proceeding with the replication action.

Constructor Summary

Constructors

Constructor	Description
ReplicationRequest(StreamInput in)
ReplicationRequest(ShardId shardId)	Creates a new request with resolved shard id

Method Summary

Modifier and Type	Method	Description
Task	createTask(long id, String type, String action, TaskId parentTaskId, Map<String,String> headers)	Returns the task object that should be used to keep track of the processing of the request.
String	getDescription()	Returns optional description of the request to be displayed by the task manager
String	index()
Request	index(String index)
String[]	indices()	Returns the array of indices that the action relates to
IndicesOptions	indicesOptions()	Returns the indices options used to resolve indices.
void	onRetry()	This method is called before this replication request is retried the first time.
ShardId	shardId()
TimeValue	timeout()
Request	timeout(String timeout)	A timeout to wait if the index operation can't be performed immediately.
Request	timeout(TimeValue timeout)	A timeout to wait if the index operation can't be performed immediately.
abstract String	toString()
ActionRequestValidationException	validate()
ActiveShardCount	waitForActiveShards()
Request	waitForActiveShards(int waitForActiveShards)	A shortcut for waitForActiveShards(ActiveShardCount) where the numerical shard count is passed in, instead of having to first call ActiveShardCount.from(int) to get the ActiveShardCount.
Request	waitForActiveShards(ActiveShardCount waitForActiveShards)	Sets the number of shard copies that must be active before proceeding with the replication operation.
void	writeTo(StreamOutput out)	Write this into the StreamOutput.

Methods inherited from class org.elasticsearch.action.ActionRequest

getShouldStoreResult

Methods inherited from class org.elasticsearch.transport.TransportRequest

getParentTask, setParentTask

Methods inherited from class org.elasticsearch.transport.TransportMessage

remoteAddress, remoteAddress

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.tasks.TaskAwareRequest

setParentTask

Field Detail

DEFAULT_TIMEOUT

public static final TimeValue DEFAULT_TIMEOUT

shardId

protected final ShardId shardId

Target shard the request should execute on. In case of index and delete requests, shard id gets resolved by the transport action before performing request operation and at request creation time for shard-level bulk, refresh and flush requests.

timeout

protected TimeValue timeout

index

protected String index

waitForActiveShards

protected ActiveShardCount waitForActiveShards

The number of shard copies that must be active before proceeding with the replication action.

Constructor Detail

ReplicationRequest

public ReplicationRequest(StreamInput in)
                   throws IOException

Throws:

IOException

ReplicationRequest

public ReplicationRequest(@Nullable
                          ShardId shardId)

Creates a new request with resolved shard id

Method Detail

timeout

public final Request timeout(TimeValue timeout)

A timeout to wait if the index operation can't be performed immediately. Defaults to 1m.

timeout

public final Request timeout(String timeout)

A timeout to wait if the index operation can't be performed immediately. Defaults to 1m.

timeout

public TimeValue timeout()

index

public String index()

index

public final Request index(String index)

indices

public String[] indices()

Description copied from interface: IndicesRequest

Returns the array of indices that the action relates to

Specified by:

indices in interface IndicesRequest

indicesOptions

public IndicesOptions indicesOptions()

Description copied from interface: IndicesRequest

Returns the indices options used to resolve indices. They tell for instance whether a single index is accepted, whether an empty array will be converted to _all, and how wildcards will be expanded if needed.

Specified by:

indicesOptions in interface IndicesRequest

waitForActiveShards

public ActiveShardCount waitForActiveShards()

shardId

@Nullable
public ShardId shardId()

Returns:

the shardId of the shard where this operation should be executed on. can be null if the shardID has not yet been resolved

waitForActiveShards

public final Request waitForActiveShards(ActiveShardCount waitForActiveShards)

Sets the number of shard copies that must be active before proceeding with the replication operation. Defaults to ActiveShardCount.DEFAULT, which requires one shard copy (the primary) to be active. Set this value to ActiveShardCount.ALL to wait for all shards (primary and all replicas) to be active. Otherwise, use ActiveShardCount.from(int) to set this value to any non-negative integer, up to the total number of shard copies (number of replicas + 1).

waitForActiveShards

public final Request waitForActiveShards(int waitForActiveShards)

A shortcut for waitForActiveShards(ActiveShardCount) where the numerical shard count is passed in, instead of having to first call ActiveShardCount.from(int) to get the ActiveShardCount.

validate

public ActionRequestValidationException validate()

Specified by:

validate in class ActionRequest

writeTo

public void writeTo(StreamOutput out)
             throws IOException

Description copied from interface: Writeable

Write this into the StreamOutput.

Specified by:

writeTo in interface Writeable

Overrides:

writeTo in class ActionRequest

Throws:

IOException

createTask

public Task createTask(long id,
                       String type,
                       String action,
                       TaskId parentTaskId,
                       Map<String,String> headers)

Description copied from interface: TaskAwareRequest

Returns the task object that should be used to keep track of the processing of the request.

Specified by:

createTask in interface TaskAwareRequest

toString

public abstract String toString()

Overrides:

toString in class Object

getDescription

public String getDescription()

Description copied from interface: TaskAwareRequest

Returns optional description of the request to be displayed by the task manager

Specified by:

getDescription in interface TaskAwareRequest

onRetry

public void onRetry()

This method is called before this replication request is retried the first time.