/*
* Copyright 2008-2009 the original 赵永春(zyc@hasor.net).
*
* 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.
*/
package net.test.simple.core._04_scope;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.HashMap;
import java.util.Map;
import net.hasor.core.ApiBinder;
import net.hasor.core.AppContext;
import net.hasor.core.Hasor;
import net.hasor.core.Module;
import net.hasor.core.Provider;
import net.hasor.core.Scope;
import net.test.simple.core._03_beans.pojo.PojoBean;
import org.junit.Test;
/**
* 本示列演示如何使用 Hasor 的Scope隔离Bean。
* @version : 2013-8-11
* @author 赵永春 (zyc@hasor.net)
*/
public class ScopeTest {
@Test
public void scopeTest() throws IOException, URISyntaxException, InterruptedException {
System.out.println("--->>scopeTest<<--");
//1.创建一个标准的 Hasor 容器。
AppContext appContext = Hasor.createAppContext(new Module() {
public void loadModule(ApiBinder apiBinder) throws Throwable {
MyScope myScope1 = new MyScope();
//
apiBinder.bindType(PojoBean.class).nameWith("myBean1").toScope(myScope1);
}
});
//
PojoBean myBean = null;
myBean = appContext.findBindingBean("myBean1", PojoBean.class);
System.out.println("Scope 1 : " + myBean.getName() + myBean);
myBean = appContext.findBindingBean("myBean1", PojoBean.class);
System.out.println("Scope 1 : " + myBean.getName() + myBean);
}
}
/**一个自定义 Scope ，实现了Scope内的单例.*/
class MyScope implements Scope {
private Map<Object, Provider<?>> scopeMap = new HashMap<Object, Provider<?>>();
public <T> Provider<T> scope(Object key, final Provider<T> provider) {
Provider<?> returnData = this.scopeMap.get(key);
if (provider != null) {
returnData = new Provider<T>() {
private T instance;
public T get() {
if (instance == null)
this.instance = provider.get();
return instance;
}
};
this.scopeMap.put(key, returnData);
}
return (Provider<T>) returnData;
}
}