[[java-rest-high-x-pack-ml-stop-datafeed]]
=== Stop Datafeed API

The Stop Datafeed API provides the ability to stop a {ml} datafeed in the cluster.
It accepts a `StopDatafeedRequest` object and responds
with a `StopDatafeedResponse` object.

[[java-rest-high-x-pack-ml-stop-datafeed-request]]
==== Stop Datafeed Request

A `StopDatafeedRequest` object is created referencing any number of non-null `datafeedId` entries.
Wildcards and `_all` are also accepted.
All other fields are optional for the request.

["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-stop-datafeed-request]
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<1> Constructing a new request referencing existing `datafeedId` entries.

==== Optional Arguments

The following arguments are optional.

["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-stop-datafeed-request-options]
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<1> Whether to ignore if a wildcard expression matches no datafeeds. (This includes `_all` string)
<2> If true, the datafeed is stopped forcefully.
<3> Controls the amount of time to wait until a datafeed stops. The default value is 20 seconds.

[[java-rest-high-x-pack-ml-stop-datafeed-execution]]
==== Execution

The request can be executed through the `MachineLearningClient` contained
in the `RestHighLevelClient` object, accessed via the `machineLearningClient()` method.

["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-stop-datafeed-execute]
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<1> Did the datafeed successfully stop?

[[java-rest-high-x-pack-ml-stop-datafeed-execution-async]]
==== Asynchronous Execution

The request can also be executed asynchronously:

["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-stop-datafeed-execute-async]
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<1> The `StopDatafeedRequest` to execute and the `ActionListener` to use when
the execution completes

The method does not block and returns immediately. The passed `ActionListener` is used
to notify the caller of completion. A typical `ActionListener` for `StopDatafeedResponse` may
look like

["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-stop-datafeed-listener]
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<1> `onResponse` is called back when the action is completed successfully
<2> `onFailure` is called back when some unexpected error occurs