feat: add TransferTypes plugin for Generator

packages/java/parser-jvm-plugin-transfertypes/pom.xml

@@ -2,71 +2,76 @@
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
+    <modelVersion>4.0.0</modelVersion>
 
-  <parent>
-    <groupId>com.vaadin</groupId>
-    <artifactId>hilla-project</artifactId>
-    <version>24.7-SNAPSHOT</version>
-    <relativePath>../../../pom.xml</relativePath>
-  </parent>
+    <parent>
+        <groupId>com.vaadin</groupId>
+        <artifactId>hilla-project</artifactId>
+        <version>24.7-SNAPSHOT</version>
+        <relativePath>../../../pom.xml</relativePath>
+    </parent>
 
-  <artifactId>hilla-parser-jvm-plugin-transfertypes</artifactId>
-  <name>Hilla JVM Parser Transfer Types Plugin</name>
-  <packaging>jar</packaging>
+    <artifactId>hilla-parser-jvm-plugin-transfertypes</artifactId>
+    <name>Hilla JVM Parser Transfer Types Plugin</name>
+    <packaging>jar</packaging>
 
-  <properties>
-    <formatter.basedir>${project.parent.basedir}</formatter.basedir>
-  </properties>
+    <properties>
+        <formatter.basedir>${project.parent.basedir}</formatter.basedir>
+    </properties>
 
-  <dependencies>
-    <dependency>
-      <groupId>com.vaadin</groupId>
-      <artifactId>hilla-parser-jvm-core</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.jspecify</groupId>
-      <artifactId>jspecify</artifactId>
-    </dependency>
-    <dependency>
-      <groupId>io.github.classgraph</groupId>
-      <artifactId>classgraph</artifactId>
-    </dependency>
-    <dependency>
-      <groupId>org.junit.jupiter</groupId>
-      <artifactId>junit-jupiter</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>com.vaadin</groupId>
-      <artifactId>hilla-parser-jvm-utils</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>com.vaadin</groupId>
-      <artifactId>hilla-parser-jvm-plugin-backbone</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>com.vaadin</groupId>
-      <artifactId>hilla-runtime-plugin-transfertypes</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.springframework.data</groupId>
-      <artifactId>spring-data-commons</artifactId>
-    </dependency>
-    <dependency>
-      <groupId>com.vaadin</groupId>
-      <artifactId>hilla-parser-jvm-test-utils</artifactId>
-      <version>${project.version}</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>io.projectreactor</groupId>
-      <artifactId>reactor-core</artifactId>
-      <scope>test</scope>
-    </dependency>
-  </dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>hilla-parser-jvm-core</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jspecify</groupId>
+            <artifactId>jspecify</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.github.classgraph</groupId>
+            <artifactId>classgraph</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>hilla-parser-jvm-utils</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>hilla-parser-jvm-plugin-backbone</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>hilla-runtime-plugin-transfertypes</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-commons</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>hilla-parser-jvm-test-utils</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.projectreactor</groupId>
+            <artifactId>reactor-core</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 </project>

packages/java/parser-jvm-plugin-transfertypes/src/main/java/com/vaadin/hilla/parser/plugins/transfertypes/TransferTypesPlugin.java

@@ -12,6 +12,7 @@
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
+
 import com.vaadin.hilla.mappedtypes.Order;
 import com.vaadin.hilla.mappedtypes.Pageable;
 import com.vaadin.hilla.mappedtypes.Sort;
@@ -25,10 +26,9 @@
 import com.vaadin.hilla.parser.models.ClassRefSignatureModel;
 import com.vaadin.hilla.parser.models.SignatureModel;
 import com.vaadin.hilla.parser.plugins.backbone.BackbonePlugin;
-import com.vaadin.hilla.parser.plugins.backbone.nodes.CompositeTypeSignatureNode;
-import com.vaadin.hilla.parser.plugins.backbone.nodes.TypeSignatureNode;
 import com.vaadin.hilla.parser.plugins.backbone.nodes.TypedNode;
 import com.vaadin.hilla.runtime.transfertypes.EndpointSubscription;
+import com.vaadin.hilla.runtime.transfertypes.File;
 import com.vaadin.hilla.runtime.transfertypes.Flux;
 
 public final class TransferTypesPlugin
@@ -48,6 +48,8 @@ public final class TransferTypesPlugin
         classMap.put(JsonNode.class.getName(), Object.class);
         classMap.put(ObjectNode.class.getName(), Object.class);
         classMap.put(ArrayNode.class.getName(), List.class);
+        classMap.put("org.springframework.web.multipart.MultipartFile",
+                File.class);
     }
 
     public TransferTypesPlugin() {

packages/java/parser-jvm-plugin-transfertypes/src/test/java/com/vaadin/hilla/parser/plugins/transfertypes/file/Endpoint.java

@@ -0,0 +1,11 @@
+package com.vaadin.hilla.parser.plugins.transfertypes.file;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface Endpoint {
+}

packages/java/parser-jvm-plugin-transfertypes/src/test/java/com/vaadin/hilla/parser/plugins/transfertypes/file/MultipartFileEndpoint.java

@@ -0,0 +1,9 @@
+package com.vaadin.hilla.parser.plugins.transfertypes.file;
+
+import org.springframework.web.multipart.MultipartFile;
+
+@Endpoint
+public class MultipartFileEndpoint {
+    public void uploadFile(MultipartFile file) {
+    }
+}

packages/java/parser-jvm-plugin-transfertypes/src/test/java/com/vaadin/hilla/parser/plugins/transfertypes/file/MultipartFileTest.java

@@ -0,0 +1,30 @@
+package com.vaadin.hilla.parser.plugins.transfertypes.file;
+
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.util.List;
+import java.util.Set;
+
+import org.junit.jupiter.api.Test;
+
+import com.vaadin.hilla.parser.core.Parser;
+import com.vaadin.hilla.parser.plugins.backbone.BackbonePlugin;
+import com.vaadin.hilla.parser.plugins.transfertypes.TransferTypesPlugin;
+import com.vaadin.hilla.parser.plugins.transfertypes.test.helpers.TestHelper;
+
+public class MultipartFileTest {
+    private final TestHelper helper = new TestHelper(getClass());
+
+    @Test
+    public void should_ReplaceMultipartFileClassWithLocalFileClass()
+            throws IOException, URISyntaxException {
+        var openAPI = new Parser()
+                .classPath(Set.of(helper.getTargetDir().toString()))
+                .endpointAnnotations(List.of(Endpoint.class))
+                .addPlugin(new BackbonePlugin())
+                .addPlugin(new TransferTypesPlugin())
+                .execute(List.of(MultipartFileEndpoint.class));
+
+        helper.executeParserWithConfig(openAPI);
+    }
+}

packages/java/parser-jvm-plugin-transfertypes/src/test/resources/com/vaadin/hilla/parser/plugins/transfertypes/file/openapi.json

@@ -0,0 +1,60 @@
+{
+  "openapi" : "3.0.1",
+  "info" : {
+    "title" : "Hilla Application",
+    "version" : "1.0.0"
+  },
+  "servers" : [
+    {
+      "url" : "http://localhost:8080/connect",
+      "description" : "Hilla Backend"
+    }
+  ],
+  "tags" : [
+    {
+      "name" : "MultipartFileEndpoint",
+      "x-class-name" : "com.vaadin.hilla.parser.plugins.transfertypes.file.MultipartFileEndpoint"
+    }
+  ],
+  "paths" : {
+    "/MultipartFileEndpoint/uploadFile" : {
+      "post" : {
+        "tags" : [
+          "MultipartFileEndpoint"
+        ],
+        "operationId" : "MultipartFileEndpoint_uploadFile_POST",
+        "requestBody" : {
+          "content" : {
+            "application/json" : {
+              "schema" : {
+                "type" : "object",
+                "properties" : {
+                  "file" : {
+                    "nullable" : true,
+                    "anyOf" : [
+                      {
+                        "$ref" : "#/components/schemas/com.vaadin.hilla.runtime.transfertypes.File"
+                      }
+                    ]
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses" : {
+          "200" : {
+            "description" : ""
+          }
+        }
+      }
+    }
+  },
+  "components" : {
+    "schemas" : {
+      "com.vaadin.hilla.runtime.transfertypes.File" : {
+        "type" : "object"
+      }
+    }
+  }
+}

packages/java/runtime-plugin-transfertypes/src/main/java/com/vaadin/hilla/runtime/transfertypes/File.java

@@ -0,0 +1,4 @@
+package com.vaadin.hilla.runtime.transfertypes;
+
+public record File() {
+}

packages/ts/generator-cli/src/GeneratorIO.ts

@@ -3,7 +3,6 @@ import { access, mkdir, readFile, rm, writeFile } from 'node:fs/promises';
 import { createRequire } from 'node:module';
 import { dirname, isAbsolute, join, resolve } from 'node:path';
 import { pathToFileURL } from 'node:url';
-import type File from '@vaadin/hilla-generator-core/File.js';
 import Plugin, { type PluginConstructor } from '@vaadin/hilla-generator-core/Plugin.js';
 import type LoggerFactory from '@vaadin/hilla-generator-utils/LoggerFactory.js';
 import GeneratorIOException from './GeneratorIOException.js';

packages/ts/generator-cli/test/GeneratorIO.spec.ts

@@ -2,7 +2,6 @@ import { statSync } from 'node:fs';
 import { chmod, mkdtemp, rm, writeFile } from 'node:fs/promises';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
-import File from '@vaadin/hilla-generator-core/File.js';
 import LoggerFactory from '@vaadin/hilla-generator-utils/LoggerFactory.js';
 import chaiAsPromised from 'chai-as-promised';
 import { expect, chai, describe, it, beforeEach, afterEach } from 'vitest';

packages/ts/generator-core/package.json

@@ -44,9 +44,6 @@
     },
     "./SharedStorage.js": {
       "types": "./SharedStorage.d.ts"
-    },
-    "./utils.js": {
-      "default": "./utils.js"
     }
   },
   "repository": {

packages/ts/generator-core/src/Generator.ts

@@ -3,11 +3,10 @@
 import type { OpenAPIV3 } from 'openapi-types';
 import type { ReadonlyDeep } from 'type-fest';
 import ts from 'typescript';
-import File from './File.js';
 import type { PluginConstructor } from './Plugin.js';
 import PluginManager from './PluginManager.js';
 import ReferenceResolver from './ReferenceResolver.js';
-import type SharedStorage from './SharedStorage.js';
+import type { SharedStorage } from './SharedStorage.js';
 
 export type GeneratorContext = Readonly<{
   logger: LoggerFactory;
@@ -37,6 +36,7 @@
       outputDir: this.#outputDir,
       pluginStorage: new Map(),
       sources: [],
+      transferTypes: new Map(),
     };
 
     this.#logger.global.debug('Executing plugins');

packages/ts/generator-core/src/Plugin.ts

@@ -2,7 +2,7 @@ import type LoggerFactory from '@vaadin/hilla-generator-utils/LoggerFactory.js';
 import type { Logger } from '@vaadin/hilla-generator-utils/LoggerFactory.js';
 import type { Constructor } from 'type-fest';
 import type ReferenceResolver from './ReferenceResolver.js';
-import type SharedStorage from './SharedStorage.js';
+import type { SharedStorage } from './SharedStorage.js';
 
 export default abstract class Plugin {
   readonly resolver: ReferenceResolver;
@@ -19,7 +19,7 @@ export default abstract class Plugin {
 
   abstract get path(): string;
 
-  abstract execute(storage: SharedStorage): Promise<void>;
+  abstract execute(storage: SharedStorage): Promise<void> | void;
 }
 
 export type PluginConstructor = Constructor<Plugin, ConstructorParameters<typeof Plugin>>;

packages/ts/generator-core/src/PluginManager.ts

@@ -2,13 +2,14 @@
 import type Plugin from './Plugin.js';
 import type { PluginConstructor } from './Plugin.js';
 import type ReferenceResolver from './ReferenceResolver.js';
-import type SharedStorage from './SharedStorage.js';
+import type { SharedStorage } from './SharedStorage.js';
 
 export default class PluginManager {
   readonly #plugins: Plugin[];
 
   constructor(plugins: readonly PluginConstructor[], resolver: ReferenceResolver, logger: LoggerFactory) {
     const standardPlugins = [
+      'TransferTypesPlugin', // should go before Backbone Plugin
       'BackbonePlugin',
       'ClientPlugin',
       'BarrelPlugin',