refactored to make more testable

src/main/resources/scala/model.mustache

@@ -7,25 +7,14 @@ package {{package}}
 import scala.reflect.BeanProperty
 
 {{#model}}
-class {{classname}} {
+case class {{classname}} (
   {{#vars}}
 
   {{#notes}}/* {{notes}} */
   {{/notes}}
   {{#description}}/* {{description}} */
   {{/description}}
-  @BeanProperty var {{name}}: {{datatype}} = {{defaultValue}}
-  {{/vars}}
-  
-  override def toString: String = {
-    val sb = new StringBuilder
-    sb.append("class {{classname}} {\n")
-    {{#vars}}
-    sb.append("  {{name}}: ").append({{name}}).append("\n")
-    {{/vars}}
-    sb.append("}\n")
-    sb.toString
-  }
-}
+  {{name}}: {{datatype}}{{#hasMore}},{{newline}}  {{/hasMore}}
+  {{/vars}})
 {{/model}}
 {{/models}}

src/main/scala/com/wordnik/swagger/codegen/BasicGenerator.scala

@@ -92,15 +92,36 @@ abstract class BasicGenerator extends CodegenConfig with PathUtil {
     val operations = extractOperations(subDocs, allModels)
     val apiMap = groupApisToFiles(operations)
 
-    processApiMap(apiMap)
-    processModelMap(allModels)
+    val modelBundle = prepareModelBundle(allModels.toMap)
+    val modelFiles = bundleToSource(modelBundle, modelTemplateFiles.toMap)
+
+    modelFiles.map(m => {
+      val filename = m._1
+      val fw = new FileWriter(filename, false)
+      fw.write(m._2 + "\n")
+      fw.close()
+      println("wrote model " + filename)
+    })
+
+    val apiBundle = prepareApiBundle(apiMap.toMap)
+    val apiFiles = bundleToSource(apiBundle, apiTemplateFiles.toMap)
+
+    apiFiles.map(m => {
+      val filename = m._1
+      val fw = new FileWriter(filename, false)
+      fw.write(m._2 + "\n")
+      fw.close()
+      println("wrote api " + filename)
+    })
 
     codegen.writeSupportingClasses(apiMap.toMap, allModels.toMap)
   }
 
-  def processModelMap(models: HashMap[String, DocumentationSchema]) = {
-    val modelBundleList = new ListBuffer[Map[String, AnyRef]]
-    for ((name, schema) <- models) {
+  /**
+   * creates a map of models and properties needed to write source
+   */
+  def prepareModelBundle(models: Map[String, DocumentationSchema]): List[Map[String, AnyRef]] = {
+    (for ((name, schema) <- models) yield {
       if (!defaultIncludes.contains(name)) {
         val m = new HashMap[String, AnyRef]
         m += "name" -> name
@@ -111,23 +132,21 @@ abstract class BasicGenerator extends CodegenConfig with PathUtil {
         m += "invokerPackage" -> invokerPackage
         m += "outputDirectory" -> (destinationDir + File.separator + modelPackage.getOrElse("").replaceAll("\\.", File.separator))
         m += "newline" -> "\n"
-        modelBundleList += m.toMap
-        for ((file, suffix) <- modelTemplateFiles) {
-          m += "filename" -> (name + suffix)
-          generateAndWrite(m.toMap, file)
-        }
+
+        Some(m.toMap)
       }
-    }
+      else None
+    }).flatten.toList
   }
 
-  def processApiMap(apiMap: Map[(String, String), List[(String, DocumentationOperation)]] ) = {
-    for ((identifier, operationList) <- apiMap) {
+  def prepareApiBundle(apiMap: Map[(String, String), List[(String, DocumentationOperation)]] ): List[Map[String, AnyRef]] = {
+    (for ((identifier, operationList) <- apiMap) yield {
       val basePath = identifier._1
       val name = identifier._2
       val className = toApiName(name)
 
       val m = new HashMap[String, AnyRef]
-      m += "name" -> name
+      m += "name" -> toApiName(name)
       m += "className" -> className
       m += "basePath" -> basePath
       m += "package" -> apiPackage
@@ -137,11 +156,21 @@ abstract class BasicGenerator extends CodegenConfig with PathUtil {
       m += "outputDirectory" -> (destinationDir + File.separator + apiPackage.getOrElse("").replaceAll("\\.", File.separator))
       m += "newline" -> "\n"
 
-      for ((file, suffix) <- apiTemplateFiles) {
-        m += "filename" -> (className + suffix)
-        generateAndWrite(m.toMap, file)
+      Some(m.toMap)
+    }).flatten.toList
+  }
+
+  /**
+   * turns a bundle into source files with output file name
+   */
+  def bundleToSource(bundle:List[Map[String, AnyRef]], templates: Map[String, String]): List[(String, String)] = {
+    val output = new ListBuffer[(String, String)]
+    bundle.foreach(m => {
+      for ((file, suffix) <- templates) {
+        output += Tuple2(m("outputDirectory").toString + File.separator + m("name").toString + suffix, codegen.generateSource(m, file))
       }
-    }
+    })
+    output.toList
   }
 
   def generateAndWrite(bundle: Map[String, AnyRef], templateFile: String) = {

src/main/scala/com/wordnik/swagger/codegen/BasicJavaGenerator.scala

@@ -31,6 +31,13 @@ class BasicJavaGenerator extends BasicGenerator {
     "String",
     "boolean")
 
+  /**
+   * We are using java objects instead of primitives to avoid showing default
+   * primitive values when the API returns missing data.  For instance, having a
+   * {"count":0} != count is unknown.  You can change this to use primitives if you
+   * desire, but update the default values as well or they'll be set to null in 
+   * variable declarations.
+   */
   override def typeMapping = Map(
     "string" -> "String",
     "int" -> "Integer",
@@ -94,9 +101,8 @@ class BasicJavaGenerator extends BasicGenerator {
     val declaredType = dt.indexOf("[") match {
       case -1 => dt
       case n: Int => {
-        if (dt.substring(0, n) == "Array") {
+        if (dt.substring(0, n) == "Array")
           "List" + dt.substring(n).replaceAll("\\[", "<").replaceAll("\\]", ">")
-        } 
         else dt.replaceAll("\\[", "<").replaceAll("\\]", ">")
       }
       case _ => dt
@@ -128,14 +134,17 @@ class BasicJavaGenerator extends BasicGenerator {
     (declaredType, defaultValue)
   }
 
-  // default values
+  /**
+   * we are defaulting to null values since the codegen uses java objects instead of primitives
+   * If you change to primitives, you can put in the appropriate values (0.0f, etc).
+   */
   override def toDefaultValue(dataType: String, obj: DocumentationSchema) = {
     dataType match {
-      case "boolean" => "false"
-      case "int" => "0"
-      case "long" => "0L"
-      case "float" => "0.0f"
-      case "double" => "0.0"
+      case "Boolean" => "null"
+      case "Integer" => "null"
+      case "Long" => "null"
+      case "Float" => "null"
+      case "Double" => "null"
       case "List" => {
         val inner = {
           if (obj.items.ref != null) obj.items.ref

src/main/scala/com/wordnik/swagger/codegen/language/CodegenConfig.scala

@@ -106,7 +106,6 @@ abstract class CodegenConfig {
   }
 
   def toDefaultValue(datatype: String, defaultValue: String): Option[String] = {
-
     if (defaultValue != "" && defaultValue != null) {
       toDeclaredType(datatype) match {
         case "int" => Some(defaultValue)

src/test/scala/BasicGeneratorTest.scala

@@ -16,7 +16,16 @@ import scala.reflect.BeanProperty
 class BasicGeneratorTest extends FlatSpec with ShouldMatchers {
   val json = ScalaJsonUtil.getJsonMapper
 
-  class SampleGenerator extends BasicGenerator
+  class SampleGenerator extends BasicGenerator {
+  	modelTemplateFiles += "model.mustache" -> ".test"
+  	override def typeMapping = Map(
+	    "string" -> "String",
+	    "int" -> "Int",
+	    "float" -> "Float",
+	    "long" -> "Long",
+	    "double" -> "Double",
+	    "object" -> "Any")
+  }
 
   behavior of "BasicGenerator"
 
@@ -73,4 +82,79 @@ class BasicGeneratorTest extends FlatSpec with ShouldMatchers {
     (orderOperations.map(m => m.httpMethod).toSet & Set("GET", "DELETE")).size should be (2)
     (orderOperations.map(m => m.nickname).toSet & Set("getOrderById", "deleteOrder")).size should be (2)
   }
-}
+
+  it should "create a model map" in {
+  	implicit val basePath = "http://localhost:8080/api"
+    val generator = new SampleGenerator
+    val model = getSampleModel
+
+    val bundle = generator.prepareModelBundle(Map(model.id -> model)).head
+
+    // inspect properties
+    bundle("name") should be ("SampleObject")
+    bundle("className") should be ("SampleObject")
+    bundle("invokerPackage") should be (Some("com.wordnik.client.common"))
+    bundle("package") should be (Some("com.wordnik.client.model"))
+
+    // inspect models
+    val modelList = bundle("models").asInstanceOf[List[(String, DocumentationSchema)]]
+    modelList.size should be (1)
+    modelList.head._1 should be ("SampleObject")
+    modelList.head._2.getClass should be (classOf[DocumentationSchema])
+  }
+
+  it should "create a model file" in {
+  	implicit val basePath = "http://localhost:8080/api"
+    val generator = new SampleGenerator
+
+    val model = getSampleModel
+    val bundle = generator.prepareModelBundle(Map(model.id -> model))
+    val modelFile = generator.bundleToSource(bundle, generator.modelTemplateFiles.toMap).head
+    // modelFile._1 should be ("SampleObject.test")
+
+    val fileContents = modelFile._2
+    fileContents.indexOf("case class SampleObject") should not be (-1)
+    fileContents.indexOf("longValue: Long") should not be (-1)
+    fileContents.indexOf("intValue: Int") should not be (-1)
+    fileContents.indexOf("doubleValue: Double") should not be (-1)
+    fileContents.indexOf("stringValue: String") should not be (-1)
+    fileContents.indexOf("floatValue: Float") should not be (-1)
+  }
+
+  def getSampleModel = {
+    val model = new DocumentationSchema
+    model.id = "SampleObject"
+    model.name = "SampleObject"
+    model.properties = {
+      val list = new HashMap[String, DocumentationSchema]
+
+      val stringProperty = new DocumentationSchema
+      stringProperty.name = "stringValue"
+      stringProperty.setType("string")
+      list += "stringValue" -> stringProperty
+
+      val intProperty = new DocumentationSchema
+      intProperty.name = "intValue"
+      intProperty.setType("int")
+      list += "intValue" -> intProperty
+
+      val longProperty = new DocumentationSchema
+      longProperty.name = "longValue"
+      longProperty.setType("long")
+      list += "longValue" -> longProperty
+
+      val floatProperty = new DocumentationSchema
+      floatProperty.name = "floatValue"
+      floatProperty.setType("float")
+      list += "floatValue" -> floatProperty
+
+      val doubleProperty = new DocumentationSchema
+      doubleProperty.name = "doubleValue"
+      doubleProperty.setType("double")
+      list += "doubleValue" -> doubleProperty
+
+      list.asJava
+    }
+    model
+  }
+}

src/test/scala/JavaCodegenConfigTest.scala

@@ -93,6 +93,26 @@ class BasicJavaGeneratorTest extends FlatSpec with ShouldMatchers {
     config.toDeclaredType("object") should be ("Object")
   }
 
+  /*
+   * declarations are used in models, and types need to be
+   * mapped appropriately
+   */
+  it should "convert a string a declaration" in {
+    val expected = Map(
+      "string" -> ("String", "null"),
+      "int" -> ("Integer", "null"),
+      "float" -> ("Float", "null"),
+      "long" -> ("Long", "null"),
+      "double" -> ("Double", "null"),
+      "object" -> ("Object", "null"))
+    expected.map(e => {
+      val model = new DocumentationSchema
+      model.name = "simple_" + e._1
+      model.setType(e._1)
+      config.toDeclaration(model) should be (e._2)
+    })
+  }
+
   /*
    * codegen should honor special imports to avoid generating
    * classes

src/test/scala/ScalaCodegenConfigTest.scala

@@ -93,6 +93,25 @@ class BasicScalaGeneratorTest extends FlatSpec with ShouldMatchers {
     config.toDeclaredType("object") should be ("Any")
   }
 
+  /*
+   * declarations are used in models, and types need to be
+   * mapped appropriately
+   */
+  it should "convert a string a declaration" in {
+    val expected = Map("string" -> ("String", "_"),
+      "int" -> ("Int", "0"),
+      "float" -> ("Float", "0f"),
+      "long" -> ("Long", "0L"),
+      "double" -> ("Double", "0.0"),
+      "object" -> ("Any", "_"))
+    expected.map(e => {
+      val model = new DocumentationSchema
+      model.name = "simple_" + e._1
+      model.setType(e._1)
+      config.toDeclaration(model) should be (e._2)
+    })
+  }
+
   /*
    * codegen should honor special imports to avoid generating
    * classes