content: /*
  *  Copyright Beijing 58 Information Technology Co.,Ltd.
  *
  *  Licensed to the Apache Software Foundation (ASF) under one
  *  or more contributor license agreements.  See the NOTICE file
  *  distributed with this work for additional information
  *  regarding copyright ownership.  The ASF licenses this file
  *  to you 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 learn;
  
  import com.google.inject.*;
  import com.google.inject.spi.TypeEncounter;
  import com.google.inject.spi.TypeListener;
  import org.testng.annotations.Test;
  
  import javax.inject.Inject;
  import java.lang.reflect.Constructor;
  
  /**
   * @author Service Platform Architecture Team (spat@58.com)
   */
  public class InjectorLearn {
  
  
      public static class MyTypeListener implements TypeListener {
  
          @Override
          public <I> void hear(TypeLiteral<I> type, TypeEncounter<I> encounter) {
  
  
              Class<?> clazz = type.getRawType();
  
              if (My.class != clazz)
                  return;
  
              Constructor<?>[] cs = clazz.getConstructors();
  
              Constructor c = null;
              for(Constructor<?> cn : cs) {
                  if (cn.getAnnotation(Inject.class) != null) {
                      c = cn;
                      break;
                  }
              }
  
              if (c == null)
                  return;
  
  
              Class<?>[] fs = c.getParameterTypes();
              encounter.register(new MembersInjector<I>() {
                  @Override
                  public void injectMembers(I instance) {
                      long time = System.currentTimeMillis();
                      System.out.println("a" + time);
                  }
              });
          }
      }
  
  
      public static class My {
          private String a1;
  
          @Inject
          public My(String a) {
              this.a1 = a;
          }
  
          public void test() {
              System.out.println(a1);
          }
      }
  
      @Test
      public void testMy1() {
          Injector injector = Guice.createInjector(new Module() {
              @Override
              public void configure(Binder binder) {
  
                  binder.bind(String.class).toInstance("xyz");
  
              }
          });
  
          My1 my1 = injector.getInstance(My1.class);
          my1.test();
  
          My my = injector.getInstance(My.class);
          my.test();
      }
  
      public static class My1 {
          private String a;
  
  
          public My1() {
              long time = System.currentTimeMillis();
              a = String.valueOf(time);
          }
  
          public void test() {
              System.out.println(a);
  
              Thread.currentThread().getStackTrace();
          }
      }
  
  }
  