content: /*
   * Copyright 1999-2018 Alibaba Group.
   *
   * 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.alibaba.fastjson.serializer;
  
  import java.io.IOException;
  import java.lang.reflect.Type;
  import java.util.concurrent.atomic.AtomicBoolean;
  import java.util.concurrent.atomic.AtomicInteger;
  import java.util.concurrent.atomic.AtomicIntegerArray;
  import java.util.concurrent.atomic.AtomicLong;
  import java.util.concurrent.atomic.AtomicLongArray;
  
  import com.alibaba.fastjson.JSONArray;
  import com.alibaba.fastjson.parser.DefaultJSONParser;
  import com.alibaba.fastjson.parser.JSONToken;
  import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
  
  /**
   * @author wenshao[szujobs@hotmail.com]
   */
  public class AtomicCodec implements ObjectSerializer, ObjectDeserializer {
  
      public final static AtomicCodec instance = new AtomicCodec();
  
      public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
          SerializeWriter out = serializer.out;
          
          if (object instanceof AtomicInteger) {
              AtomicInteger val = (AtomicInteger) object;
              out.writeInt(val.get());
              return;
          }
          
          if (object instanceof AtomicLong) {
              AtomicLong val = (AtomicLong) object;
              out.writeLong(val.get());
              return;
          }
          
          if (object instanceof AtomicBoolean) {
              AtomicBoolean val = (AtomicBoolean) object;
              out.append(val.get() ? "true" : "false");
              return;
          }
  
          if (object == null) {
              out.writeNull(SerializerFeature.WriteNullListAsEmpty);
              return;
          }
  
          if (object instanceof AtomicIntegerArray) {
              AtomicIntegerArray array = (AtomicIntegerArray) object;
              int len = array.length();
              out.write('[');
              for (int i = 0; i < len; ++i) {
                  int val = array.get(i);
                  if (i != 0) {
                      out.write(',');
                  }
                  out.writeInt(val);
              }
              out.write(']');
              
              return;
          }
          
          AtomicLongArray array = (AtomicLongArray) object;
          int len = array.length();
          out.write('[');
          for (int i = 0; i < len; ++i) {
              long val = array.get(i);
              if (i != 0) {
                  out.write(',');
              }
              out.writeLong(val);
          }
          out.write(']');
      }
  
      @SuppressWarnings("unchecked")
      public <T> T deserialze(DefaultJSONParser parser, Type clazz, Object fieldName) {
          if (parser.lexer.token() == JSONToken.NULL) {
              parser.lexer.nextToken(JSONToken.COMMA);
              return null;
          }
  
          JSONArray array = new JSONArray();
          parser.parseArray(array);
  
          if (clazz == AtomicIntegerArray.class) {
              AtomicIntegerArray atomicArray = new AtomicIntegerArray(array.size());
              for (int i = 0; i < array.size(); ++i) {
                  atomicArray.set(i, array.getInteger(i));
              }
      
              return (T) atomicArray;
          }
          
          AtomicLongArray atomicArray = new AtomicLongArray(array.size());
          for (int i = 0; i < array.size(); ++i) {
              atomicArray.set(i, array.getLong(i));
          }
  
          return (T) atomicArray;
      }
  
      public int getFastMatchToken() {
          return JSONToken.LBRACKET;
      }
  }
  