Package org.elasticsearch.action.support
Class ContextPreservingActionListener<R>
java.lang.Object
org.elasticsearch.action.support.ContextPreservingActionListener<R>
- All Implemented Interfaces:
ActionListener<R>
public final class ContextPreservingActionListener<R> extends java.lang.Object implements ActionListener<R>
Restores the given
ThreadContext.StoredContext
once the listener is invoked-
Constructor Summary
Constructors Constructor Description ContextPreservingActionListener(java.util.function.Supplier<ThreadContext.StoredContext> contextSupplier, ActionListener<R> delegate) -
Method Summary
Modifier and Type Method Description voidonFailure(java.lang.Exception e)A failure caused by an exception at some phase of the task.voidonResponse(R r)Handle action response.static <R> ContextPreservingActionListener<R>wrapPreservingContext(ActionListener<R> listener, ThreadContext threadContext)Wraps the provided action listener in aContextPreservingActionListenerthat will also copy the response headers when theThreadContext.StoredContextis closed
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Constructor Details
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ContextPreservingActionListener
public ContextPreservingActionListener(java.util.function.Supplier<ThreadContext.StoredContext> contextSupplier, ActionListener<R> delegate)
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Method Details
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onResponse
Description copied from interface:ActionListenerHandle action response. This response may constitute a failure or a success but it is up to the listener to make that decision.- Specified by:
onResponsein interfaceActionListener<R>
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onFailure
public void onFailure(java.lang.Exception e)Description copied from interface:ActionListenerA failure caused by an exception at some phase of the task.- Specified by:
onFailurein interfaceActionListener<R>
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wrapPreservingContext
public static <R> ContextPreservingActionListener<R> wrapPreservingContext(ActionListener<R> listener, ThreadContext threadContext)Wraps the provided action listener in aContextPreservingActionListenerthat will also copy the response headers when theThreadContext.StoredContextis closed
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