add joda support to okhttp-gson and use it in the samples

modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/JSON.mustache

@@ -12,12 +12,20 @@ import com.google.gson.JsonParseException;
 import com.google.gson.JsonPrimitive;
 import com.google.gson.JsonSerializationContext;
 import com.google.gson.JsonSerializer;
+import com.google.gson.TypeAdapter;
 import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
 
+import java.io.IOException;
 import java.io.StringReader;
 import java.lang.reflect.Type;
 import java.util.Date;
 
+import org.joda.time.DateTime;
+import org.joda.time.LocalDate;
+import org.joda.time.format.DateTimeFormatter;
+import org.joda.time.format.ISODateTimeFormat;
+
 public class JSON {
     private ApiClient apiClient;
     private Gson gson;
@@ -31,6 +39,8 @@ public class JSON {
         this.apiClient = apiClient;
         gson = new GsonBuilder()
             .registerTypeAdapter(Date.class, new DateAdapter(apiClient))
+            .registerTypeAdapter(DateTime.class, new DateTimeTypeAdapter())
+            .registerTypeAdapter(LocalDate.class, new LocalDateTypeAdapter())
             .create();
     }
 
@@ -143,3 +153,62 @@ class DateAdapter implements JsonSerializer<Date>, JsonDeserializer<Date> {
         }
     }
 }
+
+/**
+ * Gson TypeAdapter for Joda DateTime type
+ */
+class DateTimeTypeAdapter extends TypeAdapter<DateTime> {
+
+    private final DateTimeFormatter formatter = ISODateTimeFormat.dateTime();
+
+    @Override
+    public void write(JsonWriter out, DateTime date) throws IOException {
+        if (date == null) {
+            out.nullValue();
+        } else {
+            out.value(formatter.print(date));
+        }
+    }
+
+    @Override
+    public DateTime read(JsonReader in) throws IOException {
+        switch (in.peek()) {
+            case NULL:
+                in.nextNull();
+                return null;
+            default:
+                String date = in.nextString();
+                return formatter.parseDateTime(date);
+        }
+    }
+}
+
+/**
+ * Gson TypeAdapter for Joda LocalDate type
+ */
+class LocalDateTypeAdapter extends TypeAdapter<LocalDate> {
+
+    private final DateTimeFormatter formatter = ISODateTimeFormat.date();
+
+    @Override
+    public void write(JsonWriter out, LocalDate date) throws IOException {
+        if (date == null) {
+            out.nullValue();
+        } else {
+            out.value(formatter.print(date));
+        }
+    }
+
+    @Override
+    public LocalDate read(JsonReader in) throws IOException {
+        switch (in.peek()) {
+            case NULL:
+                in.nextNull();
+                return null;
+            default:
+                String date = in.nextString();
+                return formatter.parseLocalDate(date);
+        }
+    }
+}
+            

modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/build.gradle.mustache

@@ -98,5 +98,6 @@ dependencies {
     compile 'com.squareup.okhttp:okhttp:2.7.5'
     compile 'com.squareup.okhttp:logging-interceptor:2.7.5'
     compile 'com.google.code.gson:gson:2.6.2'
+    compile 'joda-time:joda-time:2.9.3'
     testCompile 'junit:junit:4.12'
 }

modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/build.sbt.mustache

@@ -13,6 +13,7 @@ lazy val root = (project in file(".")).
       "com.squareup.okhttp" % "okhttp" % "2.7.5",
       "com.squareup.okhttp" % "logging-interceptor" % "2.7.5",
       "com.google.code.gson" % "gson" % "2.6.2",
+      "joda-time" % "joda-time" % "2.9.3" % "compile",
       "junit" % "junit" % "4.12" % "test",
       "com.novocode" % "junit-interface" % "0.10" % "test"
     )

modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/pom.mustache

@@ -128,6 +128,11 @@
       <artifactId>gson</artifactId>
       <version>${gson-version}</version>
     </dependency>
+    <dependency>
+      <groupId>joda-time</groupId>
+      <artifactId>joda-time</artifactId>
+      <version>${jodatime-version}</version>
+  </dependency>
 
     <!-- test dependencies -->
     <dependency>
@@ -141,6 +146,7 @@
     <swagger-core-version>1.5.9</swagger-core-version>
     <okhttp-version>2.7.5</okhttp-version>
     <gson-version>2.6.2</gson-version>
+    <jodatime-version>2.9.3</jodatime-version>
     <maven-plugin-version>1.0.0</maven-plugin-version>
     <junit-version>4.12</junit-version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>