package net.minidev.json.writer;
import java.io.IOException;
import java.lang.reflect.Type;
import net.minidev.json.parser.ParseException;
public class UpdaterMapper<T> extends JsonReaderI<T> {
final T obj;
final JsonReaderI<?> mapper;
public UpdaterMapper(JsonReader base, T obj) {
super(base);
if (obj == null)
throw new NullPointerException("can not update null Object");
this.obj = obj;
this.mapper = (JsonReaderI<?>) base.getMapper(obj.getClass());
}
public UpdaterMapper(JsonReader base, T obj, Type type) {
super(base);
if (obj == null)
throw new NullPointerException("can not update null Object");
this.obj = obj;
this.mapper = (JsonReaderI<?>) base.getMapper(type);
}
public JsonReaderI<?> startObject(String key) throws ParseException, IOException {
Object bean = mapper.getValue(obj, key);
if (bean == null)
return mapper.startObject(key);
return new UpdaterMapper<Object>(base, bean, mapper.getType(key));
}
public JsonReaderI<?> startArray(String key) throws ParseException, IOException {
return mapper.startArray(key);
}
public void setValue(Object current, String key, Object value) throws ParseException, IOException {
mapper.setValue(current, key, value);
}
public void addValue(Object current, Object value) throws ParseException, IOException {
mapper.addValue(current, value);
}
public Object createObject() {
if (obj != null)
return obj;
return mapper.createObject();
}
public Object createArray() {
if (obj != null)
return obj;
return mapper.createArray();
}
@SuppressWarnings("unchecked")
public T convert(Object current) {
if (obj != null)
return obj;
return (T) mapper.convert(current);
}
}