updated datatype for arrayschema with composed schema items

Author: HugoMario

src/main/java/io/swagger/codegen/v3/generators/SchemaHandler.java

@@ -128,7 +128,9 @@ protected CodegenModel processArrayItemSchema(CodegenModel codegenModel, ArraySc
     protected CodegenModel processArrayItemSchema(String codegenModelName, CodegenProperty codegenProperty, ArraySchema arraySchema, Map<String, CodegenModel> allModels) {
         final Schema itemsSchema = arraySchema.getItems();
         if (itemsSchema instanceof ComposedSchema) {
-            return this.processComposedSchema(codegenModelName, codegenProperty, (ComposedSchema) itemsSchema, allModels);
+            final CodegenModel composedModel = this.processComposedSchema(codegenModelName + ARRAY_ITEMS_SUFFIX, codegenProperty.items, (ComposedSchema) itemsSchema, allModels);
+            this.updatePropertyDataType(codegenProperty, composedModel, arraySchema);
+            return composedModel;
         }
         return null;
     }
@@ -188,4 +190,15 @@ protected void addComposedModel(CodegenModel composedModel) {
         }
         this.composedModels.add(composedModel);
     }
+
+    protected void updatePropertyDataType(CodegenProperty codegenProperty, CodegenModel composedModel, ArraySchema arraySchema) {
+        final Schema items = arraySchema.getItems();
+        final Schema refSchema = new Schema();
+        refSchema.set$ref("#/components/schemas/" + composedModel.getClassname());
+        arraySchema.setItems(refSchema);
+        codegenProperty.setDatatype(this.codegenConfig.getTypeDeclaration(arraySchema));
+        codegenProperty.setDatatypeWithEnum(codegenProperty.getDatatype());
+
+        arraySchema.setItems(items);
+    }
 }

src/test/java/io/swagger/codegen/v3/generators/dotnet/AspNetCoreServerCodegenTest.java

@@ -2,8 +2,10 @@
 
 import io.swagger.codegen.v3.CodegenConfig;
 import io.swagger.codegen.v3.CodegenModel;
+import io.swagger.codegen.v3.CodegenProperty;
 import io.swagger.codegen.v3.generators.AbstractCodegenTest;
 import io.swagger.codegen.v3.generators.CodegenWrapper;
+import io.swagger.util.Yaml;
 import io.swagger.v3.oas.models.OpenAPI;
 import org.testng.Assert;
 import org.testng.annotations.Test;
@@ -18,4 +20,16 @@ public void checkArrayItemsSchemaParent() {
         CodegenModel codegenModel = codegenWrapper.getAllModels().get("AllPetsResponse");
         Assert.assertEquals(codegenModel.parent, "List<OneOfAllPetsResponseItems>");
     }
+
+    @Test
+    public void checkArrayItemsSchemaProperty() {
+        final OpenAPI openAPI = getOpenAPI("3_0_0/composed_schemas.yaml");
+        final CodegenConfig config = new AspNetCoreServerCodegen();
+        final CodegenWrapper codegenWrapper = processSchemas(config, openAPI);
+        final CodegenModel codegenModel = codegenWrapper.getAllModels().get("House");
+
+        final CodegenProperty codegenProperty = codegenModel.vars.stream().filter(property -> property.baseName.equals("pets")).findFirst().get();
+        Assert.assertEquals(codegenProperty.datatype, "List<OneOfHousePetsItems>");
+
+    }
 }

src/test/resources/3_0_0/composed_schemas.yaml

@@ -151,4 +151,14 @@ components:
             hunts:
               type: boolean
             age:
-              type: integer
+              type: integer
+
+    House:
+      type: object
+      properties:
+        pets:
+          items:
+            oneOf:
+            - "$ref": "#/components/schemas/Dog"
+            - "$ref": "#/components/schemas/Cat"
+          type: array