Add Util.singleStringParam() helper method

Author: rbygrave

http-generator-core/src/main/java/io/avaje/http/generator/core/BaseProcessor.java

@@ -165,23 +165,14 @@ private final void registerParamMapping(final TypeElement type, String factoryMe
       ElementFilter.methodsIn(type.getEnclosedElements()).stream()
         .filter(m -> m.getSimpleName().contentEquals(factoryMethod)
               && m.getModifiers().contains(Modifier.STATIC)
-              && m.getParameters().size() == 1
-              && firstParamIsString(m))
+              && Util.singleStringParam(m))
         .findAny()
         .ifPresentOrElse(
           c -> TypeMap.add(new CustomHandler(UType.parse(type.asType()), factoryMethod)),
           () -> logError(type, "Missing static factory method %s(String s)", factoryMethod));
     }
   }
 
-  private static boolean firstParamIsString(ExecutableElement m) {
-    return m.getParameters()
-      .get(0)
-      .asType()
-      .toString()
-      .equals(String.class.getTypeName());
-  }
-
   private void readOpenApiDefinition(RoundEnvironment round) {
     for (final Element element : round.getElementsAnnotatedWith(typeElement(OpenAPIDefinitionPrism.PRISM_TYPE))) {
       doc().readApiDefinition(element);

http-generator-core/src/main/java/io/avaje/http/generator/core/Util.java

@@ -274,13 +274,15 @@ public List<String> visitEnumConstant(VariableElement roleEnum, Object o) {
 
   static Optional<ExecutableElement> stringConstructor(TypeElement typeElement) {
     return ElementFilter.constructorsIn(typeElement.getEnclosedElements()).stream()
-      .filter(m ->
-        m.getParameters().size() == 1
-          && firstParamIsString(m))
+      .filter(Util::singleStringParam)
       .findAny();
   }
 
-  private static boolean firstParamIsString(ExecutableElement m) {
+  static boolean singleStringParam(ExecutableElement m) {
+    return m.getParameters().size() == 1 && firstParamIsString(m);
+  }
+
+  static boolean firstParamIsString(ExecutableElement m) {
     return m.getParameters()
       .get(0)
       .asType()