Add U.chain(string).xmlToJson() and U.chain(string).jsonToXml() methods.

Author: javadev

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

@@ -662,6 +662,14 @@ public Chain<List<T>> createPermutationWithRepetition(final int permutationLengt
         public Chain<String> toJsonJavaString() {
             return new Chain<String>(Json.toJsonJavaString((Collection) value()));
         }
+
+        public Chain<String> xmlToJson() {
+            return new Chain<String>(U.xmlToJson((String) item()));
+        }
+
+        public Chain<String> jsonToXml() {
+            return new Chain<String>(U.jsonToXml((String) item()));
+        }
     }
 
     public static Chain<String> chain(final String item) {

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

@@ -574,13 +574,17 @@ public void fetchWrongUrl() {
     public void xmlToJson() {
         assertEquals("[\n  \"1\",\n  \"2\"\n]",
             U.xmlToJson("<root><element>1</element><element>2</element></root>"));
+        assertEquals("[\n  \"1\",\n  \"2\"\n]",
+            U.chain("<root><element>1</element><element>2</element></root>").xmlToJson().item());
         assertEquals("{\n  \"a\": {\n    \"b\": [\n      {\n      },\n      {\n      }\n    ]\n  }\n}",
             U.xmlToJson("<a>\n  <b>\n  </b>\n  <b>\n  </b>\n</a>"));
     }
 
     @Test
     public void jsonToXml() {
         assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<a></a>", U.jsonToXml("{\n  \"a\": {\n  }\n}"));
+        assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<a></a>",
+            U.chain("{\n  \"a\": {\n  }\n}").jsonToXml().item());
         assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<root>\n</root>", U.jsonToXml("[]"));
     }