From 08b18b153507964e53b50eaee1549d745bb03be8 Mon Sep 17 00:00:00 2001
From: Marcin Wolniewicz <fuzzzym@gmail.com>
Date: Wed, 26 Sep 2018 18:32:32 +0200
Subject: [PATCH] Add BigInteger binding

There seems to be most basic types in the Binder but
BigInteger was missing, even though BigDecimal was present.
Without the BigInteger binding fixtures for models using this type
will not load.
---
 framework/src/play/data/binding/Binder.java         |  6 ++++++
 .../test-src/play/data/binding/BinderTest.java      | 13 +++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/framework/src/play/data/binding/Binder.java b/framework/src/play/data/binding/Binder.java
index 4463a97d28..6bf216c87a 100644
--- a/framework/src/play/data/binding/Binder.java
+++ b/framework/src/play/data/binding/Binder.java
@@ -14,6 +14,7 @@
 import java.lang.annotation.Annotation;
 import java.lang.reflect.*;
 import java.math.BigDecimal;
+import java.math.BigInteger;
 import java.text.ParseException;
 import java.time.LocalDateTime;
 import java.util.*;
@@ -790,6 +791,11 @@ private static Object internalDirectBind(String name, Annotation[] annotations,
             return nullOrEmpty ? null : new BigDecimal(value);
         }
 
+        // BigInteger binding
+        if (clazz.equals(BigInteger.class)) {
+            return nullOrEmpty ? null : new BigInteger(value);
+        }
+
         // boolean or Boolean binding
         if (clazz.getName().equals("boolean") || clazz.equals(Boolean.class)) {
             if (nullOrEmpty) {
diff --git a/framework/test-src/play/data/binding/BinderTest.java b/framework/test-src/play/data/binding/BinderTest.java
index 0c3abbf993..cbe9dd5d35 100644
--- a/framework/test-src/play/data/binding/BinderTest.java
+++ b/framework/test-src/play/data/binding/BinderTest.java
@@ -9,6 +9,7 @@
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
 import java.math.BigDecimal;
+import java.math.BigInteger;
 import java.util.*;
 
 import static java.math.BigDecimal.TEN;
@@ -331,6 +332,18 @@ public Object bind(String name, Annotation[] annotations, String value, Class ac
             return new BigDecimal(value).add(TEN);
         }
     }
+
+    @Test
+    public void verify_binding_of_BigInteger() {
+        Map<String, Object> r = new HashMap<>();
+
+        BigInteger myBigInt = new BigInteger("12");
+        Integer myBigIntAsInteger = 12;
+        Unbinder.unBind(r, myBigIntAsInteger, "myBigInt", noAnnotations);
+        Map<String, String[]> r2 = fromUnbindMap2BindMap(r);
+        RootParamNode root = ParamNode.convert(r2);
+        assertThat(Binder.bind(root, "myBigInt", BigInteger.class, null, null)).isEqualTo(myBigInt);
+    }
 }