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 com.alibaba.fastjson.JSONException;
  import com.alibaba.fastjson.parser.DefaultJSONParser;
  import com.alibaba.fastjson.parser.JSONLexer;
  import com.alibaba.fastjson.parser.JSONToken;
  import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
  import com.alibaba.fastjson.util.TypeUtils;
  
  /**
   * @author wenshao[szujobs@hotmail.com]
   */
  public class BooleanCodec implements ObjectSerializer, ObjectDeserializer {
  
      public final static BooleanCodec instance = new BooleanCodec();
  
      public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
          SerializeWriter out = serializer.out;
  
          Boolean value = (Boolean) object;
          if (value == null) {
              out.writeNull(SerializerFeature.WriteNullBooleanAsFalse);
              return;
          }
  
          if (value.booleanValue()) {
              out.write("true");
          } else {
              out.write("false");
          }
      }
  
      @SuppressWarnings("unchecked")
      public <T> T deserialze(DefaultJSONParser parser, Type clazz, Object fieldName) {
          final JSONLexer lexer = parser.lexer;
  
          Boolean boolObj;
  
          try {
              if (lexer.token() == JSONToken.TRUE) {
                  lexer.nextToken(JSONToken.COMMA);
                  boolObj = Boolean.TRUE;
              } else if (lexer.token() == JSONToken.FALSE) {
                  lexer.nextToken(JSONToken.COMMA);
                  boolObj = Boolean.FALSE;
              } else if (lexer.token() == JSONToken.LITERAL_INT) {
                  int intValue = lexer.intValue();
                  lexer.nextToken(JSONToken.COMMA);
  
                  if (intValue == 1) {
                      boolObj = Boolean.TRUE;
                  } else {
                      boolObj = Boolean.FALSE;
                  }
              } else {
                  Object value = parser.parse();
  
                  if (value == null) {
                      return null;
                  }
  
                  boolObj = TypeUtils.castToBoolean(value);
              }
          } catch (Exception ex) {
              throw new JSONException("parseBoolean error, field : " + fieldName, ex);
          }
  
          if (clazz == AtomicBoolean.class) {
              return (T) new AtomicBoolean(boolObj.booleanValue());
          }
  
          return (T) boolObj;
      }
  
      public int getFastMatchToken() {
          return JSONToken.TRUE;
      }
  }
  