[java-client][okhttp-gson] support bearer authentication (#3236)

modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/ApiClient.mustache

@@ -88,8 +88,9 @@ public class ApiClient {
     public ApiClient() {
         init();
 
-        // Setup authentications (key: authentication name, value: authentication).{{#authMethods}}{{#isBasic}}
-        authentications.put("{{name}}", new HttpBasicAuth());{{/isBasic}}{{#isApiKey}}
+        // Setup authentications (key: authentication name, value: authentication).{{#authMethods}}{{#isBasic}}{{#isBasicBasic}}
+        authentications.put("{{name}}", new HttpBasicAuth());{{/isBasicBasic}}{{^isBasicBasic}}
+        authentications.put("{{name}}", new HttpBearerAuth("{{scheme}}"));{{/isBasicBasic}}{{/isBasic}}{{#isApiKey}}
         authentications.put("{{name}}", new ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{^isKeyInHeader}}"query"{{/isKeyInHeader}}, "{{keyParamName}}"));{{/isApiKey}}{{#isOAuth}}
         authentications.put("{{name}}", new OAuth());{{/isOAuth}}{{/authMethods}}
         // Prevent the authentications from being modified.

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

@@ -44,6 +44,7 @@ import org.openapitools.codegen.CodegenOperation;
 import org.openapitools.codegen.CodegenParameter;
 import org.openapitools.codegen.CodegenProperty;
 import org.openapitools.codegen.CodegenResponse;
+import org.openapitools.codegen.CodegenSecurity;
 import org.openapitools.codegen.DefaultGenerator;
 import org.openapitools.codegen.MockDefaultGenerator;
 import org.openapitools.codegen.MockDefaultGenerator.WrittenTemplateBasedFile;
@@ -409,6 +410,18 @@ public class JavaClientCodegenTest {
         Assert.assertEquals(cm.getClassname(), "OtherObj");
     }
 
+    @Test
+    public void testBearerAuth() {
+        final OpenAPI openAPI = TestUtils.parseSpec("src/test/resources/3_0/pingBearerAuth.yaml");
+        JavaClientCodegen codegen = new JavaClientCodegen();
+        
+        List<CodegenSecurity> security = codegen.fromSecurity(openAPI.getComponents().getSecuritySchemes());
+        Assert.assertEquals(security.size(), 1);
+        Assert.assertEquals(security.get(0).isBasic, Boolean.TRUE);
+        Assert.assertEquals(security.get(0).isBasicBasic, Boolean.FALSE);
+        Assert.assertEquals(security.get(0).isBasicBearer, Boolean.TRUE);
+    }
+
     private CodegenProperty codegenPropertyWithArrayOfIntegerValues() {
         CodegenProperty array = new CodegenProperty();
         final CodegenProperty items = new CodegenProperty();

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

@@ -0,0 +1,21 @@
+openapi: 3.0.1
+info:
+  title: ping test
+  version: '1.0'
+servers:
+  - url: 'http://localhost:8080/'
+paths:
+  /ping:
+    get:
+      operationId: pingGet
+      responses:
+        '201':
+          description: OK
+components:
+  securitySchemes:
+        bearerAuth:
+            scheme: bearer
+            bearerFormat: token
+            type: http
+security:
+  - bearerAuth: []