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Convertors.java
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Convertors.java
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package com.example.mybookshelf.utils;
import androidx.room.TypeConverter;
import com.example.mybookshelf.data.BookItem;
import com.example.mybookshelf.data.ImageLinks;
import com.example.mybookshelf.data.VolumeInfoItem;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import java.lang.reflect.Type;
import java.util.List;
public class Convertors {
@TypeConverter
public static List<String> fromString(String value) {
return new Gson().fromJson(value, new TypeToken<List<String>>() {}.getType());
}
@TypeConverter
public static String fromList(List<String> list) {
return new Gson().toJson(list);
}
@TypeConverter
public static ImageLinks imageLinksfromJsonString(String json) {
if (json == null) {
return null;
}
return new Gson().fromJson(json, ImageLinks.class);
}
@TypeConverter
public static String toJsonString(ImageLinks imageLinks) {
if (imageLinks == null) {
return null;
}
return new Gson().toJson(imageLinks);
}
@TypeConverter
public static List<BookItem> BookItemsfromJsonString(String json) {
if (json == null) {
return null;
}
Type listType = new TypeToken<List<BookItem>>() {}.getType();
return new Gson().fromJson(json, listType);
}
@TypeConverter
public static String toJsonString(List<BookItem> bookItems) {
if (bookItems == null) {
return null;
}
return new Gson().toJson(bookItems);
}
@TypeConverter
public static VolumeInfoItem VolumeItemfromJsonString(String json) {
if (json == null) {
return null;
}
return new Gson().fromJson(json, VolumeInfoItem.class);
}
@TypeConverter
public static String toJsonString(VolumeInfoItem volumeInfoItem) {
if (volumeInfoItem == null) {
return null;
}
return new Gson().toJson(volumeInfoItem);
}
}