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https://issues.apache.org/jira/browse/NIFI-4224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16120360#comment-16120360
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ASF GitHub Bot commented on NIFI-4224:
--------------------------------------
Github user mcgilman commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2051#discussion_r132257748
--- Diff:
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-api/src/main/java/org/apache/nifi/web/api/ProcessGroupResource.java
---
@@ -238,6 +313,47 @@ public Response getProcessGroup(
return generateOkResponse(entity).build();
}
+
+ /**
+ * Retrieves the Variable Registry for the group with the given ID
+ *
+ * @param groupId the ID of the Process Group
+ * @return the Variable Registry for the group
+ */
+ @GET
+ @Consumes(MediaType.WILDCARD)
+ @Produces(MediaType.APPLICATION_JSON)
+ @Path("{id}/variable-registry")
+ @ApiOperation(value = "Gets a process group's variable registry",
response = VariableRegistryEntity.class, authorizations = {
+ @Authorization(value = "Read - /process-groups/{uuid}", type = "")
+ })
+ @ApiResponses(value = {
+ @ApiResponse(code = 400, message = "NiFi was unable to complete
the request because it was invalid. The request should not be retried without
modification."),
+ @ApiResponse(code = 401, message = "Client could not be
authenticated."),
+ @ApiResponse(code = 403, message = "Client is not authorized to
make this request."),
+ @ApiResponse(code = 404, message = "The specified resource could
not be found."),
+ @ApiResponse(code = 409, message = "The request was valid but NiFi
was not in the appropriate state to process it. Retrying the same request later
may be successful.")
+ })
+ public Response getVariableRegistry(
--- End diff --
Can we add a flag (probably enabled by default) that will include all
variables available in this scope (defined in this Process Group and any
ancestors)? Also, the response should indicate where each variable is defined.
> Add Variable Registry at Process Group level
> --------------------------------------------
>
> Key: NIFI-4224
> URL: https://issues.apache.org/jira/browse/NIFI-4224
> Project: Apache NiFi
> Issue Type: New Feature
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
>
> Currently, NiFi exposes a variable registry that is configurable by adding
> the name of a properties file to nifi.properties and then treating the
> referenced properties file as key/value pairs for the variable registry.
> This, however, is very limiting, as it provides a global scope for all
> variables, and it requires a restart of NiFi in order to pick up any updates
> to the file. We should expose a Process Group-level Variable Registry.
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