[Java][Spring] fix enum variables in path parameters which generated allowableValues with double quote(#6762) (#10285)

Co-authored-by: Yukai Lin <yukai.lin@ericsson.com>

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/SpringCodegen.java

@@ -488,6 +488,8 @@ public class SpringCodegen extends AbstractJavaCodegen
         }
 
         // add lambda for mustache templates
+        additionalProperties.put("lambdaRemoveDoubleQuote",
+                (Mustache.Lambda) (fragment, writer) -> writer.write(fragment.execute().replaceAll("\"", Matcher.quoteReplacement(""))));
         additionalProperties.put("lambdaEscapeDoubleQuote",
                 (Mustache.Lambda) (fragment, writer) -> writer.write(fragment.execute().replaceAll("\"", Matcher.quoteReplacement("\\\""))));
         additionalProperties.put("lambdaRemoveLineBreak",

modules/openapi-generator/src/main/resources/JavaSpring/pathParams.mustache

@@ -1 +1 @@
-{{#isPathParam}}{{#useBeanValidation}}{{>beanValidationPathParams}}{{/useBeanValidation}}@ApiParam(value = "{{{description}}}"{{#required}}, required = true{{/required}}{{#allowableValues}}, allowableValues = "{{#enumVars}}{{#lambdaEscapeDoubleQuote}}{{{value}}}{{/lambdaEscapeDoubleQuote}}{{^-last}}, {{/-last}}{{#-last}}{{/-last}}{{/enumVars}}"{{/allowableValues}}{{^isContainer}}{{#defaultValue}}, defaultValue = "{{{.}}}"{{/defaultValue}}{{/isContainer}}) @PathVariable("{{baseName}}") {{>optionalDataType}} {{paramName}}{{/isPathParam}}
+{{#isPathParam}}{{#useBeanValidation}}{{>beanValidationPathParams}}{{/useBeanValidation}}@ApiParam(value = "{{{description}}}"{{#required}}, required = true{{/required}}{{#allowableValues}}, allowableValues = "{{#enumVars}}{{#lambdaRemoveDoubleQuote}}{{{value}}}{{/lambdaRemoveDoubleQuote}}{{^-last}}, {{/-last}}{{#-last}}{{/-last}}{{/enumVars}}"{{/allowableValues}}{{^isContainer}}{{#defaultValue}}, defaultValue = "{{{.}}}"{{/defaultValue}}{{/isContainer}}) @PathVariable("{{baseName}}") {{>optionalDataType}} {{paramName}}{{/isPathParam}}

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/spring/SpringCodegenTest.java

@@ -653,4 +653,41 @@ public class SpringCodegenTest {
         assertFileNotContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/SomeApi.java"), "Mono<DummyRequest>");
         assertFileNotContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/SomeApiDelegate.java"), "Mono<DummyRequest>");
     }
+
+    @Test
+    public void doGeneratePathVariableForSimpleParam() throws IOException {
+        File output = Files.createTempDirectory("test").toFile().getCanonicalFile();
+        output.deleteOnExit();
+        String outputPath = output.getAbsolutePath().replace('\\', '/');
+
+        OpenAPI openAPI = new OpenAPIParser()
+                .readLocation("src/test/resources/3_0/issue_6762.yaml", null, new ParseOptions()).getOpenAPI();
+
+        SpringCodegen codegen = new SpringCodegen();
+        codegen.setOutputDir(output.getAbsolutePath());
+        codegen.additionalProperties().put(CXFServerFeatures.LOAD_TEST_DATA_FROM_FILE, "true");
+
+        ClientOptInput input = new ClientOptInput();
+        input.openAPI(openAPI);
+        input.config(codegen);
+
+        DefaultGenerator generator = new DefaultGenerator();
+
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODELS, "false");
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODEL_TESTS, "false");
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODEL_DOCS, "false");
+        generator.setGeneratorPropertyDefault(CodegenConstants.APIS, "true");
+        generator.setGeneratorPropertyDefault(CodegenConstants.SUPPORTING_FILES, "false");
+
+        generator.opts(input).generate();
+
+        assertFileContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/ZebrasApi.java"), "allowableValues = \"0, 1\"");
+        assertFileContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/ZebrasApi.java"), "@PathVariable");
+        assertFileContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/BearsApi.java"), "allowableValues = \"sleeping, awake\"");
+        assertFileContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/BearsApi.java"), "@PathVariable");
+        assertFileContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/CamelsApi.java"), "allowableValues = \"sleeping, awake\"");
+        assertFileContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/CamelsApi.java"), "@PathVariable");
+        assertFileContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/GirafesApi.java"), "allowableValues = \"0, 1\"");
+        assertFileContains(Paths.get(outputPath + "/src/main/java/org/openapitools/api/GirafesApi.java"), "@PathVariable");
+    }
 }

modules/openapi-generator/src/test/resources/3_0/issue_6762.yaml

@@ -0,0 +1,61 @@
+openapi: 3.0.0
+servers:
+  - url: 'localhost:8080'
+info:
+  version: 1.0.0
+  title: OpenAPI Zoo
+  license:
+    name: Apache-2.0
+    url: 'https://www.apache.org/licenses/LICENSE-2.0.html'
+paths:
+  /girafes/{refStatus}:
+    get:
+      operationId: getGirafes
+      parameters:
+        - $ref: '#/components/parameters/refStatus'
+  /zebras/{status}:
+    get:
+      operationId: getZebras
+      parameters:
+        - in: path
+          name: status
+          required: true
+          schema:
+            type: integer
+            enum: [0,1]
+            default: 0
+  /bears/{refCondition}:
+    get:
+      operationId: getBears
+      parameters:
+        - $ref: '#/components/parameters/refCondition'
+  /camels/{condition}:
+    get:
+      operationId: getCamels
+      parameters:
+        - in: path
+          name: condition
+          required: true
+          schema:
+            type: string
+            enum:
+              - sleeping
+              - awake
+components:
+  parameters:
+    refStatus:
+      in: path
+      name: refStatus
+      required: true
+      schema:
+        type: integer
+        enum: [0,1]
+        default: 0
+    refCondition:
+      in: path
+      name: refCondition
+      schema:
+        type: string
+        enum:
+          - sleeping
+          - awake