DefaultMapperCollection.java

package net.minidev.json.writer;

/*
 *    Copyright 2011-2024 JSON-SMART authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import java.lang.reflect.Constructor;
import java.util.List;
import java.util.Map;

public class DefaultMapperCollection<T> extends JsonReaderI<T> {
  Class<T> clz;

  // ? extends Collection
  public DefaultMapperCollection(JsonReader base, Class<T> clz) {
    super(base);
    this.clz = clz;
  }

  // public static AMapper<JSONAwareEx> DEFAULT = new
  // DefaultMapperCollection<JSONAwareEx>();
  @Override
  public JsonReaderI<T> startObject(String key) {
    return this;
  }

  @Override
  public JsonReaderI<T> startArray(String key) {
    return this;
  }

  @Override
  public Object createObject() {
    try {
      Constructor<T> c = clz.getConstructor();
      return c.newInstance();
    } catch (Exception e) {
      return null;
    }
  }

  @Override
  public Object createArray() {
    try {
      Constructor<T> c = clz.getConstructor();
      return c.newInstance();
    } catch (Exception e) {
      return null;
    }
  }

  @SuppressWarnings({"unchecked"})
  @Override
  public void setValue(Object current, String key, Object value) {
    ((Map<String, Object>) current).put(key, value);
  }

  @SuppressWarnings("unchecked")
  @Override
  public void addValue(Object current, Object value) {
    ((List<Object>) current).add(value);
  }
}