content: package act.util;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * 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.
   * #L%
   */
  
  import act.app.App;
  import act.data.JodaDateTimeCodec;
  import act.data.JodaLocalDateCodec;
  import act.data.JodaLocalDateTimeCodec;
  import act.data.JodaLocalTimeCodec;
  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.serializer.JSONSerializer;
  import com.alibaba.fastjson.serializer.ObjectSerializer;
  import com.alibaba.fastjson.serializer.SerializeWriter;
  import org.joda.time.*;
  import org.osgl.$;
  
  import java.io.IOException;
  import java.lang.reflect.Type;
  import javax.inject.Inject;
  import javax.inject.Singleton;
  
  @Singleton
  public class FastJsonJodaDateCodec extends LogSupportedDestroyableBase implements ObjectSerializer, ObjectDeserializer {
  
      private JodaDateTimeCodec dateTimeCodec;
      private JodaLocalDateCodec localDateCodec;
      private JodaLocalTimeCodec localTimeCodec;
      private JodaLocalDateTimeCodec localDateTimeCodec;
  
      private App app;
  
      @Inject
      public FastJsonJodaDateCodec(App app) {
          this.app = app;
      }
  
      @Override
      protected void releaseResources() {
          app = null;
          if (null != dateTimeCodec) {
              dateTimeCodec.destroy();
              dateTimeCodec = null;
          }
          if (null != localDateCodec) {
              localDateCodec.destroy();
              localDateCodec = null;
          }
          if (null != localTimeCodec) {
              localTimeCodec.destroy();
              localTimeCodec = null;
          }
          if (null != localDateTimeCodec) {
              localDateTimeCodec.destroy();
              localDateTimeCodec = null;
          }
          super.releaseResources();
      }
  
      public FastJsonJodaDateCodec(
              JodaDateTimeCodec dateTimeCodec,
              JodaLocalDateCodec localDateCodec,
              JodaLocalTimeCodec localTimeCodec,
              JodaLocalDateTimeCodec localDateTimeCodec
      ) {
          this.dateTimeCodec = dateTimeCodec;
          this.localDateCodec = localDateCodec;
          this.localTimeCodec = localTimeCodec;
          this.localDateTimeCodec = localDateTimeCodec;
      }
  
      @SuppressWarnings("unchecked")
      public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
          JSONLexer lexer = parser.getLexer();
          int token = lexer.token();
          if (token == JSONToken.LITERAL_STRING) {
              String text = lexer.stringVal();
              lexer.nextToken();
  
              if (type == DateTime.class) {
                  DateTime dateTime = dateTimeCodec().parse(text);
  
                  return (T) dateTime;
              } else if (type == LocalDateTime.class) {
                  LocalDateTime localDateTime = localDateTimeCodec().parse(text);
  
                  return (T) localDateTime;
              } else if (type == LocalDate.class) {
                  LocalDate localDate = localDateCodec().parse(text);
                  return (T) localDate;
              } else if (type == LocalTime.class) {
                  LocalTime localDate = LocalTime.parse(text);
  
                  return (T) localDate;
              } else if (type == Period.class) {
                  Period period = Period.parse(text);
  
                  return (T) period;
              } else if (type == Duration.class) {
                  Duration duration = Duration.parse(text);
  
                  return (T) duration;
              } else if (type == Instant.class) {
                  Instant instant = Instant.parse(text);
  
                  return (T) instant;
              }
          } else if (token == JSONToken.LITERAL_INT) {
              long l = lexer.longValue();
              return (T) $.convert(l).to((Class)type);
          } else {
              throw new UnsupportedOperationException();
          }
          return null;
      }
  
      public int getFastMatchToken() {
          return JSONToken.LITERAL_STRING;
      }
  
      public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
          SerializeWriter out = serializer.getWriter();
  
          if (object == null) {
              out.writeNull();
              return;
          }
  
          Class cls = object.getClass();
          if (cls == DateTime.class) {
              out.writeString(dateTimeCodec().toString((DateTime) object));
              return;
          } else if (cls == LocalDateTime.class) {
              out.writeString(localDateTimeCodec().toString((LocalDateTime) object));
              return;
          } else if (cls == LocalDate.class) {
              out.writeString(localDateCodec().toString((LocalDate) object));
              return;
          } else if (cls == LocalTime.class) {
              out.writeString(localTimeCodec().toString((LocalTime) object));
              return;
          }
  
          out.writeString(object.toString());
      }
  
      private JodaDateTimeCodec dateTimeCodec() {
          if (null == dateTimeCodec) {
              dateTimeCodec = app.getInstance(JodaDateTimeCodec.class);
          }
          return dateTimeCodec;
      }
  
      private JodaLocalDateTimeCodec localDateTimeCodec() {
          if (null == localDateTimeCodec) {
              localDateTimeCodec = app.getInstance(JodaLocalDateTimeCodec.class);
          }
          return localDateTimeCodec;
      }
  
      private JodaLocalDateCodec localDateCodec() {
          if (null == localDateCodec) {
              localDateCodec = app.getInstance(JodaLocalDateCodec.class);
          }
          return localDateCodec;
      }
  
      private JodaLocalTimeCodec localTimeCodec() {
          if (null == localTimeCodec) {
              localTimeCodec = app.getInstance(JodaLocalTimeCodec.class);
          }
          return localTimeCodec;
      }
  }
  