fixes for position, and null arg removal

src/main/resources/scala/api.mustache

@@ -6,6 +6,7 @@ import {{invokerPackage}}.ApiInvoker
 import {{invokerPackage}}.ApiException
 
 import java.io.File
+import java.util.Date
 
 import scala.collection.mutable.HashMap
 
@@ -19,7 +20,7 @@ class {{classname}} {
   {{#operation}}
   def {{nickname}} ({{#allParams}}{{paramName}}: {{dataType}}{{#defaultValue}} = {{{defaultValue}}}{{/defaultValue}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) {{#returnType}}: Option[{{returnType}}]{{/returnType}} = {
     // create path and map variables
-    val path = "{{path}}".replaceAll("\\{format\\}","json"){{#pathParams}}.replaceAll("\\{" + "{{baseName}}" + "\\}",apiInvoker.escapeString({{paramName}}))
+    val path = "{{path}}".replaceAll("\\{format\\}","json"){{#pathParams}}.replaceAll("\\{" + "{{baseName}}" + "\\}",apiInvoker.escape({{paramName}}))
 
     {{/pathParams}}
 
@@ -38,7 +39,7 @@ class {{classname}} {
 
     {{#requiredParamCount}}
     // verify required params are set
-    (Set({{/requiredParamCount}}{{#requiredParams}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/requiredParams}}{{#requiredParamCount}}) - null).size match {
+    (List({{/requiredParamCount}}{{#requiredParams}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/requiredParams}}{{#requiredParamCount}}).filter(_ != null)).size match {
        case {{requiredParamCount}} => // all required values set
        case _ => throw new Exception("missing required params")
     }

src/main/resources/scala/apiInvoker.mustache

@@ -40,10 +40,14 @@ object ApiInvoker {
   val defaultHeaders: HashMap[String, String] = HashMap()
   val hostMap: HashMap[String, Client] = HashMap()
 
-  def escapeString(value: String): String = {
+  def escape(value: String): String = {
     URLEncoder.encode(value, "utf-8").replaceAll("\\+", "%20")
   }
 
+  def escape(value: Long): String = value.toString
+  def escape(value: Double): String = value.toString
+  def escape(value: Float): String = value.toString
+
   def deserialize(json: String, containerType: String, cls: Class[_]) = {
     if (cls == classOf[String]) {
       json match {
@@ -54,8 +58,13 @@ object ApiInvoker {
         case _ => null
       }
     } else {
-      containerType match {
+      containerType.toLowerCase match {
-        case "List" => {
+        case "array" => {
+          val typeInfo = mapper.getTypeFactory().constructCollectionType(classOf[java.util.List[_]], cls)
+          val response = mapper.readValue(json, typeInfo).asInstanceOf[java.util.List[_]]
+          response.asScala.toList
+        }
+        case "list" => {
           val typeInfo = mapper.getTypeFactory().constructCollectionType(classOf[java.util.List[_]], cls)
           val response = mapper.readValue(json, typeInfo).asInstanceOf[java.util.List[_]]
           response.asScala.toList
@@ -79,12 +88,11 @@ object ApiInvoker {
     } else null
   }
 
-  def invokeApi(host: String, path: String, method: String, queryParams: Map[String, String], body: AnyRef, headerParams: Map[String, String], contentType: String) = {
+  def invokeApi(host: String, path: String, method: String, queryParams: Map[String, String], body: AnyRef, headerParams: Map[String, String], contentType: String): String = {
     val client = getClient(host)
 
-    val querystring = queryParams.filter(k => k._2 != null).map(k => (escapeString(k._1) + "=" + escapeString(k._2))).mkString("?", "&", "")
+    val querystring = queryParams.filter(k => k._2 != null).map(k => (escape(k._1) + "=" + escape(k._2))).mkString("?", "&", "")
     val builder = client.resource(host + path + querystring).accept(contentType)
-
     headerParams.map(p => builder.header(p._1, p._2))
     defaultHeaders.map(p => {
       headerParams.contains(p._1) match {
@@ -119,12 +127,22 @@ object ApiInvoker {
       }
       case _ => null
     }
-    response.getClientResponseStatus() match {
+    response.getClientResponseStatus().getStatusCode() match {
-      case ClientResponse.Status.OK => response.getEntity(classOf[String])
+      case 204 => ""
+      case code: Int if (Range(200, 299).contains(code)) => {
+        response.hasEntity() match {
+          case true => response.getEntity(classOf[String])
+          case false => ""
+        }
+      }
       case _ => {
+        val entity = response.hasEntity() match {
+          case true => response.getEntity(classOf[String])
+          case false => "no data"
+        }
         throw new ApiException(
           response.getClientResponseStatus().getStatusCode(),
-          response.getEntity(classOf[String]))
+          entity)
       }
     }
   }
@@ -142,11 +160,5 @@ object ApiInvoker {
   }
 }
 
-class ApiException extends Exception {
+class ApiException(val code: Int, msg: String) extends RuntimeException(msg)
-  var code = 0
-
-  def this(code: Int, msg: String) = {
-    this()
-  }
-}