Added new mode FORCE_ADD_ROOT_JSON_TO_XML to the U.jsonToXml(json, mode, [newRootName]).

Author: javadev

src/main/java/com/github/underscore/lodash/U.java

@@ -63,6 +63,7 @@ public class U<T> extends Underscore<T> {
             new HashSet<>(Arrays.asList("GET", "POST", "PUT", "DELETE"));
     private static final int BUFFER_LENGTH_1024 = 1024;
     private static final int RESPONSE_CODE_400 = 400;
+    private static final String ROOT = "root";
     private static String upper = "[A-Z\\xc0-\\xd6\\xd8-\\xde\\u0400-\\u04FF]";
     private static String lower = "[a-z\\xdf-\\xf6\\xf8-\\xff]+";
     private static String selfClosing = "-self-closing";
@@ -115,7 +116,8 @@ public enum Mode {
         FORCE_ATTRIBUTE_USAGE_AND_DEFINE_ROOT_NAME,
         REPLACE_NULL_WITH_EMPTY_VALUE,
         REPLACE_EMPTY_STRING_WITH_EMPTY_VALUE,
-        REMOVE_FIRST_LEVEL_XML_TO_JSON
+        REMOVE_FIRST_LEVEL_XML_TO_JSON,
+        FORCE_ADD_ROOT_JSON_TO_XML
     }
 
     public U(final Iterable<T> iterable) {
@@ -2464,6 +2466,11 @@ public static String jsonToXml(
                                 replaceEmptyStringWithEmptyValue((Map) object),
                                 identStep,
                                 newRootName);
+            } else if (mode == Mode.FORCE_ADD_ROOT_JSON_TO_XML
+                    && !Xml.XmlValue.getMapKey(object).equals(ROOT)) {
+                final Map<String, Object> map = U.newLinkedHashMap();
+                map.put(Underscore.isNull(newRootName) ? ROOT : newRootName, object);
+                result = Xml.toXml(map, identStep);
             } else {
                 result = Xml.toXml((Map) object, identStep);
             }

src/test/java/com/github/underscore/lodash/LodashTest.java

@@ -788,6 +788,58 @@ public void renameRoot() {
                         "json"));
     }
 
+    @Test
+    public void forceAddRoot() {
+        assertEquals(
+                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+                        + "<root>\n"
+                        + "  <data array=\"true\">\n"
+                        + "    <a>b</a>\n"
+                        + "  </data>\n"
+                        + "</root>",
+                U.jsonToXml(
+                        "{\n"
+                                + "  \"data\": [\n"
+                                + "    {\n"
+                                + "      \"a\": \"b\"\n"
+                                + "    }\n"
+                                + "  ]\n"
+                                + "}",
+                        U.Mode.FORCE_ADD_ROOT_JSON_TO_XML));
+        assertEquals(
+                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+                        + "<newroot>\n"
+                        + "  <data array=\"true\">\n"
+                        + "    <a>b</a>\n"
+                        + "  </data>\n"
+                        + "</newroot>",
+                U.jsonToXml(
+                        "{\n"
+                                + "  \"data\": [\n"
+                                + "    {\n"
+                                + "      \"a\": \"b\"\n"
+                                + "    }\n"
+                                + "  ]\n"
+                                + "}",
+                        U.Mode.FORCE_ADD_ROOT_JSON_TO_XML, "newroot"));
+        assertEquals(
+                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+                        + "<root>\n"
+                        + "  <element array=\"true\">\n"
+                        + "    <a>b</a>\n"
+                        + "  </element>\n"
+                        + "</root>",
+                U.jsonToXml(
+                        "{\n"
+                                + "  \"root\": [\n"
+                                + "    {\n"
+                                + "      \"a\": \"b\"\n"
+                                + "    }\n"
+                                + "  ]\n"
+                                + "}",
+                        U.Mode.FORCE_ADD_ROOT_JSON_TO_XML));
+    }
+
     @Test
     public void updateMapKey() {
         Map<String, Object> map = U.newLinkedHashMap();