content: package com.alibaba.json.test.performance;
  
  import java.io.InputStream;
  import java.text.NumberFormat;
  import java.util.ArrayList;
  import java.util.List;
  
  import junit.framework.TestCase;
  
  import org.apache.commons.io.IOUtils;
  
  import com.alibaba.json.test.codec.Codec;
  import com.alibaba.json.test.codec.FastjsonCodec;
  import com.alibaba.json.test.codec.JacksonCodec;
  import com.alibaba.json.test.codec.JsonLibCodec;
  import com.alibaba.json.test.codec.SimpleJsonCodec;
  import com.alibaba.json.test.entity.Group;
  
  public class ObjectDecodePerformanceTest extends TestCase {
  
      private String    text;
      private final int COUNT = 1000 * 100;
  
      protected void setUp() throws Exception {
          text = "{\"badboy\":true,\"description\":\"神棍敌人姐\",\"name\":\"校长\",\"age\":3,\"birthdate\":1293278091773,\"salary\":123456789.0123}";
  
          String resource = "json/group.json";
          InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource);
          text = IOUtils.toString(is);
          is.close();
      }
  
      public void test_decodeObject() throws Exception {
          List<Codec> decoders = new ArrayList<Codec>();
          decoders.add(new JacksonGroupDecoder());
          decoders.add(new FastjsonCodec());
          decoders.add(new JacksonCodec());
          decoders.add(new SimpleJsonCodec());
          decoders.add(new JsonLibCodec());
  
          for (int i = 0; i < 20; ++i) {
              for (Codec decoder : decoders) {
                  decodeToJavaBean(text, decoder);
              }
              System.out.println();
          }
          System.out.println();
          System.out.println(text);
      }
  
      public void decodeToJavaBean(String text, Codec decoder) throws Exception {
          long startNano = System.nanoTime();
          for (int i = 0; i < COUNT; ++i) {
              decoder.decodeObject(text, Group.class);
          }
          long nano = System.nanoTime() - startNano;
          System.out.println(decoder.getName() + " : \t" + NumberFormat.getInstance().format(nano));
      }
  }
  