content: package com.alibaba.fastjson.parser.deserializer;
  
  import java.awt.Rectangle;
  import java.lang.reflect.Type;
  import java.util.Collections;
  import java.util.Set;
  
  import com.alibaba.fastjson.JSONException;
  import com.alibaba.fastjson.parser.DefaultJSONParser;
  import com.alibaba.fastjson.parser.JSONScanner;
  import com.alibaba.fastjson.parser.JSONToken;
  
  public class RectangleDeserializer implements AutowiredObjectDeserializer {
  
      public final static RectangleDeserializer instance = new RectangleDeserializer();
  
      @SuppressWarnings("unchecked")
      public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
          JSONScanner lexer = (JSONScanner) parser.getLexer();
          
          if (lexer.token() == JSONToken.NULL) {
              lexer.nextToken();
              return null;
          }
  
          if (lexer.token() != JSONToken.LBRACE && lexer.token() != JSONToken.COMMA) {
              throw new JSONException("syntax error");
          }
          lexer.nextToken();
  
          int x = 0, y = 0, width = 0, height = 0;
          for (;;) {
              if (lexer.token() == JSONToken.RBRACE) {
                  lexer.nextToken();
                  break;
              }
  
              String key;
              if (lexer.token() == JSONToken.LITERAL_STRING) {
                  key = lexer.stringVal();
                  lexer.nextTokenWithColon(JSONToken.LITERAL_INT);
              } else {
                  throw new JSONException("syntax error");
              }
  
              int val;
              if (lexer.token() == JSONToken.LITERAL_INT) {
                  val = lexer.intValue();
                  lexer.nextToken();
              } else {
                  throw new JSONException("syntax error");
              }
  
              if (key.equalsIgnoreCase("x")) {
                  x = val;
              } else if (key.equalsIgnoreCase("y")) {
                  y = val;
              } else if (key.equalsIgnoreCase("width")) {
                  width = val;
              } else if (key.equalsIgnoreCase("height")) {
                  height = val;
              } else {
                  throw new JSONException("syntax error, " + key);
              }
  
              if (lexer.token() == JSONToken.COMMA) {
                  lexer.nextToken(JSONToken.LITERAL_STRING);
              }
          }
  
          return (T) new Rectangle(x, y, width, height);
      }
  
      public int getFastMatchToken() {
          return JSONToken.LBRACE;
      }
      
      public Set<Type> getAutowiredFor() {
          return Collections.<Type>singleton(Rectangle.class);
      }
  }
  