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https://issues.apache.org/jira/browse/NIFI-4328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16144196#comment-16144196
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Michael Werle commented on NIFI-4328:
-------------------------------------
Strangely, {{FlowSnippetDTO#processGroups}} had the same issue until recently,
and whatever fixed it does not seem to have been in FlowSnippetDTO.java or
ProcessGroupDTO.java. It is not clear at all why "Set" is sometimes generated
and why other times, a proper array with "uniqueItems" set is.
> Invalid swagger.json generated from
> ControllerServiceReferencingComponentDTO#referencingCompoents
> -------------------------------------------------------------------------------------------------
>
> Key: NIFI-4328
> URL: https://issues.apache.org/jira/browse/NIFI-4328
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.3.0, 1.4.0
> Reporter: Michael Werle
>
> The referencingComponents field in
> {{nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-client-dto/src/main/java/org/apache/nifi/web/api/dto/ControllerServiceReferencingComponentDTO.java}}
> field generates the following lines in swagger.json:
> {code:javascript}
> "ControllerServiceReferencingComponentDTO" : {
> "properties" : {
> //... (omitted for brevity)
> "referencingComponents" : {
> "description" : "If the referencing component represents a
> controller service, these are the components that reference it.",
> "$ref" : "#/definitions/Set"
> }
> }
> }
> {code}
> Which causes this invalid object definition:
> {code:javascript}
> "Set" : {
> "properties" : {
> "empty" : {
> "type" : "boolean",
> "default" : false
> }
> }
> }
> {code}
> It is not clear how to fix the annotation, but the generated swagger.json
> should be:
> {code:javascript}
> "ControllerServiceReferencingComponentDTO" : {
> "properties" : {
> //... (omitted for brevity)
> "referencingComponents" : {
> "type" : "array",
> "description" : "If the referencing component represents a
> controller service, these are the components that reference it.",
> "uniqueItems" : true,
> "items" : {
> "$ref" :
> "#/definitions/ControllerServiceReferencingComponentEntity"
> }
> }
> {code}
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