Wrap refreshToken with command

Author: Denis Kurochkin

api-sdk/src/main/java/com/smartling/api/sdk/auth/AuthApiClient.java

@@ -51,7 +51,7 @@ public Response<AuthenticationContext> refresh(String refreshKey)
     {
         final HttpPost httpPost = createJsonPostRequest(
                 getApiUrl(AUTH_API_V2_REFRESH, baseUrl),
-                refreshKey
+                new RefreshCommand(refreshKey)
         );
 
         final StringResponse response = executeRequest(httpPost);

api-sdk/src/main/java/com/smartling/api/sdk/auth/RefreshCommand.java

@@ -0,0 +1,43 @@
+package com.smartling.api.sdk.auth;
+
+import java.util.Objects;
+
+public class RefreshCommand
+{
+    private final String refreshToken;
+
+    public RefreshCommand(String refreshToken)
+    {
+        this.refreshToken = refreshToken;
+    }
+
+    public String getRefreshToken()
+    {
+        return refreshToken;
+    }
+
+    @Override
+    public boolean equals(Object o)
+    {
+        if (this == o)
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
+        RefreshCommand that = (RefreshCommand) o;
+        return refreshToken.equals(that.refreshToken);
+    }
+
+    @Override
+    public int hashCode()
+    {
+        return Objects.hash(refreshToken);
+    }
+
+    @Override
+    public String toString()
+    {
+        return "RefreshCommand{" +
+                "refreshToken='" + refreshToken + '\'' +
+                '}';
+    }
+}