Android Parsing Same variable object name in retrofit

Question

I had seen many examples regarding retrofit.And I had Done too most of like listview but this is something new which I am not finding easily.I am using retrofit2.Here it has same name details first is simple object and other have nested object and I am bit confuse how to parse it.It is alogin form First it checks details if it is one then it goes further.

[
 {
"title": "success",
"details": "1"
},
{
"title": "data",
"details": {
  "EMPLOYEE_ID": 5,
  "FIRST_NAME": "ABHISHEK",
  "LAST_NAME": "BARDOLIA"

  }
 }
]

Here is the Interface used in login purpose.

  public interface LoginInterface {
  @GET("Login")
  Call<List<ClsLogin>> Login(@Query("username") String username
        , @Query("password") String password
        , @Query("imei") String imei);
}

Model Class: public class ClsLogin {

@SerializedName("title")
String title;

@SerializedName("details")
String details;

public String getTitle() {
    return title;
}

public void setTitle(String title) {
    this.title = title;
}

public String getDetails() {
    return details;
}

public void setDetails(String details) {
    this.details = details;
 }
}

Response Code:

public static void login(final LoginCallback logincallback, ClsLogin ObjLogin) {
    LoginInterface apiLoginService = ApiClient.getClient().create(LoginInterface.class);

    Call<List<ClsLogin>> call = apiLoginService.Login(
            ObjLogin.getUsername(),
            ObjLogin.getPassword(),
            ObjLogin.getImei());
    Log.e("response", String.valueOf(call.request().url()));


call.enqueue(new Callback<List<ClsLogin>>() {
    @Override
    public void onResponse(Call<List<ClsLogin>> call, Response<List<ClsLogin>> response) {
        Log.e("response", "onResponse ");
    }

    @Override
    public void onFailure(Call<List<ClsLogin>> call, Throwable t) {
        Log.e("response", t.getLocalizedMessage());
    }
});


}

use http://www.jsonschema2pojo.org/ to generate Model class for your response — Divyesh Patel, Mar 08 '17 at 07:13
first copy your json and paste in above site, then select JSON and GSON from right side menu and click on Preview — Divyesh Patel, Mar 08 '17 at 07:17
@Divyesh Thanks bro it got very simple to make a model class for response but now how can we check first details and then run second detail thing? — Abhi Bardolia, Mar 08 '17 at 07:21
i think you need to change above parameter name like message and msgcode — Divyesh Patel, Mar 08 '17 at 07:26
yeah thats true @divyesh bhai i will change it later and thank you for this bt now main problem is i need to check first detail which is 1 and then nested details how to do it?? — Abhi Bardolia, Mar 08 '17 at 07:33
no, i found that you have to change parameter name of your json — Divyesh Patel, Mar 08 '17 at 09:18
Expected BEGIN_OBJECT but was STRING at line 4 column 17 path $[0].details this error is coming bro... @divyesh bhai — Abhi Bardolia, Mar 08 '17 at 10:27
Url is getting perfect but response is not getting....it directly goes to onfailure. — Abhi Bardolia, Mar 08 '17 at 10:33
Exactly you can see it in question and again rechecked same was there.. — Abhi Bardolia, Mar 08 '17 at 10:34
"LAST_NAME": "BARDOLIA", this lines is invalid format. Remove , from last — Divyesh Patel, Mar 08 '17 at 10:38
it was mistake as i had deleted further details now it is ok .... — Abhi Bardolia, Mar 08 '17 at 10:39
you get error because in first Object, details is in String Format and in second it is JSON OBJECT. So retrofit can not parse due to mismatch — Divyesh Patel, Mar 08 '17 at 10:41
if you do this: { "title": "success", "details": { } }, then it work — Divyesh Patel, Mar 08 '17 at 10:42
But okhttp is taking this property why retrofit not taking?? — Abhi Bardolia, Mar 08 '17 at 10:44
you should rearrage your json format: { "message": "Success", "msgcode": "0", "list": [ { "EMPLOYEE_ID": 5, "FIRST_NAME": "ABHISHEK", "LAST_NAME": "BARDOLIA" } ] } — Divyesh Patel, Mar 08 '17 at 10:45
Is there any other solution to deal with this? Coz it will change in all other previous projects so... — Abhi Bardolia, Mar 08 '17 at 10:48
i don't know any solution now. Maybe some one post any answer — Divyesh Patel, Mar 08 '17 at 10:50
Btw Thank you very much...it was much enough solution for me. — Abhi Bardolia, Mar 08 '17 at 10:51
Quite difficult to understand better to change the properties...Thanks man for help... @divyesh bhai. — Abhi Bardolia, Mar 08 '17 at 11:21
@divyesh bro [link](http://stackoverflow.com/questions/42717236/incomplete-response-in-retrofit-when-there-is-null) please solve this — Abhi Bardolia, Mar 10 '17 at 12:31

score 0 · Accepted Answer · edited Mar 08 '17 at 12:07

you can see how GsonConverterFactory parsing data:

  @Override
  public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations,
  Retrofit retrofit) {
     TypeAdapter<?> adapter = gson.getAdapter(TypeToken.get(type));
     return new GsonResponseBodyConverter<>(adapter);
}

how GsonResponseBodyConverter works:

    @Override public T convert(ResponseBody value) throws IOException {
    try {
      return adapter.fromJson(value.charStream());
    } finally {
      value.close();
    }
  }

so you can write your own ResponseBodyConverter to differentiate between data and the status code,you just have to override the convert method. because,GsonConverterFactory and GsonRequestBodyConverter are finnal class,you should copy them in your project.And you should code your Custom GsonResponseBodyConverter:

 final class CusGsonResponseBodyConverter<T> implements Converter<ResponseBody, T> {
    private final TypeAdapter<T> adapter;
    private final Gson gson;

    CusGsonResponseBodyConverter(TypeAdapter<T> adapter) {
        this.adapter = adapter;
        this.gson = new Gson();
    }

    @Override
    public T convert(ResponseBody value) throws IOException {
        //get the response string data
        String response = value.string();

        //in there,you can check your data
        // for exp,you can catch the exception and return the entity with error flag
        //or just return the gson entity,like this:
        MediaType contentType = value.contentType();
        Charset charset = contentType != null ? contentType.charset(UTF_8) : UTF_8;
        InputStream inputStream = new ByteArrayInputStream(response.getBytes());
        Reader reader = new InputStreamReader(inputStream, charset);
        JsonReader jsonReader = gson.newJsonReader(reader);

        try {
            return adapter.read(jsonReader);
        } finally {
            value.close();
        }
    }
}

Can you please elaborate and show me small demo example of given question? — Abhi Bardolia, Mar 08 '17 at 07:46

Android Parsing Same variable object name in retrofit

1 Answers1