Jiraffe

A simple Java library for JSON conversion.

Examples

• Parsing JSON

  JSONElement element = JSON.deserialize("{a:{b:{c:{d:{e:'f'}}}}}");
  assert "f".equals(element.peek("a")
                           .peek("b")
                           .peek("c")
                           .peek("d")
                           .peek("e")
                           .asString());

• Creating JSON

  JSONElement element = JSONElement.newList();
  element.offer(123)
         .offer(123.45)
         .offer("123.45")
         .offer("2019-01-02 03:04:05")
         .offer(true)
         .offer(false)
         .offer(null)
         .offer(JSONElement.newMap());
  assert "[123,123.45,\"123.45\",\"2019-01-02 03:04:05\",true,false,null,{}]".equals(element.toString());

• Parsing JSON to Java Object or stringifying an Object.

  class CModel {
      public int a;
  }
  class DModel extends CModel {
      public String b;
      public int[] c;
      public String[] d;
      public List<EModel> e;
      public Map<String, String> f;
  }
  class EModel {
      public int a;
  }
  
  void test1() {
      DModel d = new DModel();
      d.a = 1;
      d.b = "bbb";
      d.c = new int[]{1, 2, 3};
      d.d = new String[]{"a", "b", "c"};
      EModel e = new EModel();
      e.a = 5;
      d.e = new ArrayList<>();
      d.e.add(e);
      d.f = new HashMap<>();
      d.f.put("aaaa", "bbbb");
  
      assert "{\"a\":1,\"b\":\"bbb\",\"c\":[1,2,3],\"d\":[\"a\",\"b\",\"c\"],\"e\":[{\"a\":5}],\"f\":{\"aaaa\":\"bbbb\"}}"
          .equals(JSON.stringify(d));
  }
  void test2() {
      DModel d = JSON.parse("{\"a\":1,\"b\":\"bbb\",\"c\":[1,2,3],\"d\":[\"a\",\"b\",\"c\"],\"e\":[{\"a\":5}],\"f\":{\"aaaa\":\"bbbb\"}}", DModel.class);
      
      assert null != d;
      assert 1 == d.a;
      assert "bbb".equals(d.b);
      assert Arrays.equals(new int[]{1, 2, 3}, d.c);
      assert Arrays.equals(new String[]{"a", "b", "c"}, d.d);
      assert null != d.e;
      assert 1 == d.e.size();
      assert d.e.get(0).a == 5;
      assert null != d.f;
      assert 1 == d.f.size();
      assert "bbbb".equals(d.f.get("aaaa"));
  }