[spring] Support 'date-time-local' format

[Allsimon]

See https://spec.openapis.org/registry/format/date-time-local.html

fixes #13889

@cachescrubber (2022/02) @welshm (2022/02) @MelleD (2022/02) @atextor (2022/02) @manedev79 (2022/02) @javisst (2022/02) @borsch (2022/02) @banlevente (2022/02) @Zomzog (2022/09) @martin-mfg (2023/08)

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---

Summary by cubic

Add support for the OpenAPI date-time-local format in the Java/Spring generator. Fields with this format now generate LocalDateTime with a java.time.LocalDateTime import. Fixes #13889.

• New Features
  • Map date-time-local -> LocalDateTime in AbstractJavaCodegen and always import java.time.LocalDateTime.
  • Add a Spring test reusing the existing spec and regenerate samples; Pet.adoptionDate is LocalDateTime.

^{Written for commit c6859f3. Summary will update on new commits.}

[cubic-dev-ai]

1 issue found across 3 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java">

<violation number="1" location="modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java:2661">
P2: New format handling uses mismatched keys (`date-time-local` vs `local-date`), so the added `date-time-local` property post-processing branch will not execute.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}

[cubic-dev-ai]

P2: New format handling uses mismatched keys (date-time-local vs local-date), so the added date-time-local property post-processing branch will not execute.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java, line 2661:

<comment>New format handling uses mismatched keys (`date-time-local` vs `local-date`), so the added `date-time-local` property post-processing branch will not execute.</comment>

<file context>
@@ -2653,4 +2654,13 @@ public void setEnumPropertyNaming(final String enumPropertyNamingType) {
+    @Override
+    protected void updatePropertyForString(CodegenProperty property, Schema p) {
+        super.updatePropertyForString(property, p);
+        if ("local-date".equals(p.getFormat())) {
+            property.setIsString(false);
+            property.isDateTime = true;
</file context>

[Chrimle]

I expect @wing328 to suggest to simply move this into an existing spec rather than creating a new one 😅

[Allsimon]

Yeah I almost put it in date-time-parameter-types-for-testing.yml but wasn't sure if this was the best move, I'll update the PR 👍

[Allsimon]

Done

[wing328]

https://github.com/OpenAPITools/openapi-generator/actions/runs/23816722621/job/69487441944?pr=23395

please update the samples to fix this

[Chrimle]

This looks off?

[Chrimle]

same here