support adding validation annotation to list of object in query param…

…eter (#70)

cmd/rdl-gen-parsec-java-server/main.go

@@ -1038,7 +1038,14 @@ func (gen *javaServerGenerator) handlerSignature(r *rdl.Resource) string {
 		} else {
 			pdecl = gen.extendedValueAnnotation(v.Annotations)
 		}
-		ptype := gen.javaType(reg, v.Type, true, "", "")
+
+		ptype := ""
+		bt := reg.FindType(v.Type)
+		if v.QueryParam != "" && reg.BaseType(bt) == rdl.BaseTypeArray {
+		    ptype = gen.generateStructFieldType(v.Type, r)
+		} else {
+		    ptype = gen.javaType(reg, v.Type, true, "", "")
+		}
 		params = append(params, "\n        "+pdecl+ptype+" "+javaName(k))
 	}
 	spec := ""
@@ -1292,3 +1299,14 @@ func javaName(name rdl.Identifier) string {
 		return string(name)
 	}
 }
+
+func (gen *javaServerGenerator) generateStructFieldType(rdlType rdl.TypeRef, r *rdl.Resource) string {
+	t := gen.registry.FindType(rdlType)
+	subItems := t.ArrayTypeDef.Items
+	annotations := utils.GetUserDefinedTypeAnnotations(subItems, gen.schema.Types)
+	pdecl := ""
+	if len(annotations) > 0 {
+		pdecl = gen.extendedValueAnnotation(annotations)
+	}
+	return "List<" + pdecl + gen.javaType(gen.registry, subItems, true, "", "") + ">"
+}