Package org.elasticsearch.action.support

Class ContextPreservingActionListener<R>

java.lang.Object

org.elasticsearch.action.ActionListener.Delegating<R,R>

org.elasticsearch.action.support.ContextPreservingActionListener<R>

All Implemented Interfaces:

ActionListener<R>

public final class ContextPreservingActionListener<R>
extends ActionListener.Delegating<R,R>

Restores the given ThreadContext.StoredContext once the listener is invoked

Nested Class Summary

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

ActionListener.Delegating<Response,DelegateResponse>, ActionListener.DelegatingActionListener<T>, ActionListener.DelegatingFailureActionListener<T,R>, ActionListener.MappedActionListener<Response,MappedResponse>, ActionListener.RunAfterActionListener<T>, ActionListener.RunBeforeActionListener<T>

Field Summary

Fields inherited from class org.elasticsearch.action.ActionListener.Delegating

delegate

Constructor Summary

Constructors

Constructor	Description
ContextPreservingActionListener(Supplier<ThreadContext.StoredContext> contextSupplier, ActionListener<R> delegate)

Method Summary

Modifier and Type	Method	Description
void	onFailure(Exception e)	A failure caused by an exception at some phase of the task.
void	onResponse(R r)	Handle action response.
static <R> ContextPreservingActionListener<R>	wrapPreservingContext(ActionListener<R> listener, ThreadContext threadContext)	Wraps the provided action listener in a ContextPreservingActionListener that will also copy the response headers when the ThreadContext.StoredContext is closed

Methods inherited from class org.elasticsearch.action.ActionListener.Delegating

toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.action.ActionListener

delegateFailure, delegateResponse, map

Constructor Details

ContextPreservingActionListener

public ContextPreservingActionListener(Supplier<ThreadContext.StoredContext> contextSupplier,
 ActionListener<R> delegate)

Method Details

onResponse

public void onResponse(R r)

Description copied from interface: ActionListener

Handle action response. This response may constitute a failure or a success but it is up to the listener to make that decision.

onFailure

public void onFailure(Exception e)

Description copied from interface: ActionListener

A failure caused by an exception at some phase of the task.

Specified by:

onFailure in interface ActionListener<R>

Overrides:

onFailure in class ActionListener.Delegating<R,R>

wrapPreservingContext

public static <R>
ContextPreservingActionListener<R> wrapPreservingContext(ActionListener<R> listener,
 ThreadContext threadContext)

Wraps the provided action listener in a ContextPreservingActionListener that will also copy the response headers when the ThreadContext.StoredContext is closed