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package it.niedermann.nextcloud.deck.api;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import java.lang.reflect.Type;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
public class GsonUTCDateAdapter implements JsonSerializer<Date>, JsonDeserializer<Date> {
private final DateFormat dateFormat;
public GsonUTCDateAdapter() {
//This is the format I need
dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
//This is the key line which converts the date to UTC which cannot be accessed with the default serializer
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
}
@Override public synchronized JsonElement serialize(Date date, Type type, JsonSerializationContext jsonSerializationContext) {
return new JsonPrimitive(dateFormat.format(date));
}
@Override public synchronized Date deserialize(JsonElement jsonElement, Type type, JsonDeserializationContext jsonDeserializationContext) {
try {
return dateFormat.parse(jsonElement.getAsString());
} catch (ParseException e) {
throw new JsonParseException(e);
}
}
}
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