primitive return types

Author: SentryMan

http-generator-nima/src/main/java/io/avaje/http/generator/helidon/nima/ControllerWriter.java

@@ -7,6 +7,7 @@
 import java.util.Optional;
 
 import javax.lang.model.type.DeclaredType;
+import javax.lang.model.type.PrimitiveType;
 
 import io.avaje.http.generator.core.BaseControllerWriter;
 import io.avaje.http.generator.core.Constants;
@@ -136,7 +137,9 @@ public void writeJsonBTypeFields(List<MethodReader> jsonMethods) {
       }
       writeFieldJsonReturnType(methodReader);
     }
-  }  public void writeFieldJsonBodyType(MethodReader methodReader) {
+  }
+
+  public void writeFieldJsonBodyType(MethodReader methodReader) {
     // body types
     if (methodReader.getBodyType() != null) {
       methodReader.getParams().stream()
@@ -158,6 +161,8 @@ public void writeJsonBTypeFields(List<MethodReader> jsonMethods) {
 
   public void writeFieldJsonReturnType(MethodReader methodReader) {
 
+    methodReader.getReturnType().getKind();
+
     // return types
     if (methodReader.getReturnType() instanceof final DeclaredType fullType) {
       final var fullTypeString = fullType.toString();
@@ -169,8 +174,19 @@ public void writeFieldJsonReturnType(MethodReader methodReader) {
             writer.append("private final JsonType<%s> %sJsonType;", k, fieldName).eol();
             return new JsonbType(baseType, fieldName);
           });
+    } else if (methodReader.getReturnType() instanceof final PrimitiveType fullType) {
+
+      jsonTypes.computeIfAbsent(
+          fullType.toString(),
+          k -> {
+            final var baseType =
+                "int".equals(k) ? "Integer" : k.substring(0, 1).toUpperCase() + k.substring(1);
+            writer.append("private final JsonType<%s> %sJsonType;", baseType, k).eol();
+            return new JsonbType(baseType, k);
+          });
     } else {
-      throw new UnsupportedOperationException("Only Objects are supported with Jsonb Return Types");
+      throw new UnsupportedOperationException(
+          "Only Primitives and Objects are supported with Jsonb Return Types");
     }
   }
 

tests/test-nima-jsonb/src/main/java/org/example/HelloController.java

@@ -1,14 +1,20 @@
 package org.example;
 
-import io.avaje.http.api.*;
-import io.helidon.common.http.HttpMediaType;
-import io.helidon.nima.webserver.http.ServerRequest;
-import io.helidon.nima.webserver.http.ServerResponse;
-
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+import io.avaje.http.api.Controller;
+import io.avaje.http.api.Form;
+import io.avaje.http.api.Get;
+import io.avaje.http.api.MediaType;
+import io.avaje.http.api.Post;
+import io.avaje.http.api.Produces;
+import io.avaje.http.api.Put;
+import io.helidon.common.http.HttpMediaType;
+import io.helidon.nima.webserver.http.ServerRequest;
+import io.helidon.nima.webserver.http.ServerResponse;
+
 @Controller
 public class HelloController {
 
@@ -47,7 +53,13 @@ Person person(String name) {
     return new Person(42, name + " hello");
   }
 
-  // curl -X POST http://localhost:8081/person -H 'Content-Type: application/json' -d '{"id":942,"name":"Jimmy"}'
+  @Get("person/{long}")
+  Person testLong(long id) {
+    return new Person(id, "Giorno hello");
+  }
+
+  // curl -X POST http://localhost:8081/person -H 'Content-Type: application/json' -d
+  // '{"id":942,"name":"Jimmy"}'
   @Post("/person")
   Person postPerson(Person body) {
     return new Person(42, "Returning " + body.name());
@@ -80,18 +92,29 @@ String addMultiple(List<Person> newGuys) {
     return "New Guys Added";
   }
 
-  // curl -X POST http://localhost:8081/form -H "Content-Type: application/x-www-form-urlencoded" -d "name=Jimmy&email=jim@foo&url=notaurl"
+  @Put("person/int")
+  int testIntReturn() {
+    return 422;
+  }
+
+  @Put("person/long")
+  long testLongReturn() {
+    return 69;
+  }
+
+  // curl -X POST http://localhost:8081/form -H "Content-Type: application/x-www-form-urlencoded" -d
+  // "name=Jimmy&email=jim@foo&url=notaurl"
   @Form
   @Post("form")
   String form(String name, String email, String url) {
     return name + "-" + email + "-" + url;
   }
 
-  // curl -X POST http://localhost:8081/formBean -H "Content-Type: application/x-www-form-urlencoded" -d "name=FormBeanJimmy&email=jim@foo&url=notaurl"
+  // curl -X POST http://localhost:8081/formBean -H "Content-Type:
+  // application/x-www-form-urlencoded" -d "name=FormBeanJimmy&email=jim@foo&url=notaurl"
   @Form
   @Post("formBean")
   String formBean(MyForm form) {
     return form.name + "-" + form.email + "-" + form.url;
   }
-
 }