/*

* 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();

}

}

}