Package org.graylog2.rest.bulk

Class SequentialBulkExecutor<T,C extends HasUser>

java.lang.Object

org.graylog2.rest.bulk.SequentialBulkExecutor<T,C>

All Implemented Interfaces:

BulkExecutor<T,C>

public class SequentialBulkExecutor<T,C extends HasUser>
extends Object
implements BulkExecutor<T,C>

Implementation of BulkExecutor that executes bulk operation on entities sequentially, one at a time, using provided SingleEntityOperationExecutor. It is meant for those type of operations on entities that are very hard to be executed with single MongoDB query in a single request, as many additional checks are to be performed on the fetched entity in order to decide if it is legal to remove it at all. It is unfortunate that it introduces a (N+1) problem, but preparing more complex solution would require extreme changes to current architecture.

Constructor Summary

Constructors

Constructor	Description
SequentialBulkExecutor(SingleEntityOperationExecutor<T,C> singleEntityOperationExecutor, AuditEventSender auditEventSender, com.fasterxml.jackson.databind.ObjectMapper objectMapper)
SequentialBulkExecutor(SingleEntityOperationExecutor<T,C> singleEntityOperationExecutor, AuditEventSender auditEventSender, SuccessContextCreator<T> successAuditLogContextCreator, FailureContextCreator failureAuditLogContextCreator)

Method Summary

Modifier and Type	Method	Description
BulkOperationResponse	executeBulkOperation(BulkOperationRequest bulkOperationRequest, C userContext, AuditParams params)	Executes bulk operation.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.graylog2.rest.bulk.BulkExecutor

getAuditActor, getUserName

Constructor Details

SequentialBulkExecutor

public SequentialBulkExecutor(SingleEntityOperationExecutor<T,C> singleEntityOperationExecutor,
 AuditEventSender auditEventSender,
 com.fasterxml.jackson.databind.ObjectMapper objectMapper)

SequentialBulkExecutor

public SequentialBulkExecutor(SingleEntityOperationExecutor<T,C> singleEntityOperationExecutor,
 AuditEventSender auditEventSender,
 SuccessContextCreator<T> successAuditLogContextCreator,
 FailureContextCreator failureAuditLogContextCreator)

Method Details

executeBulkOperation

public BulkOperationResponse executeBulkOperation(BulkOperationRequest bulkOperationRequest,
 C userContext,
 AuditParams params)

Executes bulk operation.

Specified by:

executeBulkOperation in interface BulkExecutor<T,C extends HasUser>

Parameters:

bulkOperationRequest - Information about entities that are a subject of execution.

userContext - Necessary information about a user.

params - Information needed to create audit log. If null, no audit log will be created.

Returns:

BulkOperationResponse containing the outcome of the bulk operation