OpenSearch/docs/java-rest/high-level/x-pack/x-pack-info.asciidoc

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[[java-rest-high-x-pack-info]]
=== X-Pack Info API
[[java-rest-high-x-pack-info-execution]]
==== Execution
General information about the installed {xpack} features can be retrieved
using the `xPackInfo()` method:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MiscellaneousDocumentationIT.java[x-pack-info-execute]
--------------------------------------------------
<1> Enable verbose mode. The default is `false` but `true` will return
more information.
<2> Set the categories of information to retrieve. The the default is to
return no information which is useful for checking if {xpack} is installed
but not much else.
[[java-rest-high-x-pack-info-response]]
==== Response
The returned `XPackInfoResponse` can contain `BuildInfo`, `LicenseInfo`,
and `FeatureSetsInfo` depending on the categories requested.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MiscellaneousDocumentationIT.java[x-pack-info-response]
--------------------------------------------------
<1> `BuildInfo` contains the commit hash from which Elasticsearch was
built and the timestamp that the x-pack module was created.
<2> `LicenseInfo` contains the type of license that the cluster is using
and its expiration date.
<3> Basic licenses do not expire and will return this constant.
<4> `FeatureSetsInfo` contains a `Map` from the name of a feature to
information about a feature like whether or not it is available under
the current license.
[[java-rest-high-x-pack-info-async]]
==== Asynchronous Execution
This request can be executed asynchronously:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MiscellaneousDocumentationIT.java[x-pack-info-execute-async]
--------------------------------------------------
<1> The `XPackInfoRequest` to execute and the `ActionListener` to use when
the execution completes
The asynchronous method does not block and returns immediately. Once it is
completed the `ActionListener` is called back using the `onResponse` method
if the execution successfully completed or using the `onFailure` method if
it failed.
A typical listener for `XPackInfoResponse` looks like:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MiscellaneousDocumentationIT.java[x-pack-info-execute-listener]
--------------------------------------------------
<1> Called when the execution is successfully completed. The response is
provided as an argument
<2> Called in case of failure. The raised exception is provided as an argument