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/*
 * Copyright 2013 Goodow.com
 * 
 * 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.
 */
package com.goodow.realtime.json.impl;

import com.goodow.realtime.json.JsonArray;
import com.goodow.realtime.json.JsonElement;
import com.goodow.realtime.json.JsonType;

import java.util.List;
import java.util.Map;

public abstract class JreJsonElement implements JsonElement {
  private static final long serialVersionUID = 3661435771481171596L;

  protected boolean needsCopy;

  @Override
  public boolean isArray() {
    return this instanceof JsonArray;
  }

  @Override
  public boolean isObject() {
    return this instanceof JreJsonObject;
  }

  public abstract Object toNative();

  @Override
  public String toString() {
    return toJsonString();
  }

  protected JsonType getType(Object value) {
    if (value instanceof Map) {
      return JsonType.OBJECT;
    } else if (value instanceof List) {
      return JsonType.ARRAY;
    } else if (value instanceof String) {
      return JsonType.STRING;
    } else if (value instanceof Number) {
      return JsonType.NUMBER;
    } else if (value instanceof Boolean) {
      return JsonType.BOOLEAN;
    } else if (value == null) {
      return JsonType.NULL;
    }
    throw new IllegalArgumentException("Invalid JSON type: " + value.getClass().getName());
  }
}