/*
* Copyright 1999-2012 Alibaba Group.
*
* 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 com.alibaba.dubbo.examples.cache;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.alibaba.dubbo.examples.cache.api.CacheService;
/**
* CacheConsumer
*
* @author william.liangf
*/
public class CacheConsumer {
public static void main(String[] args) throws Exception {
String config = CacheConsumer.class.getPackage().getName().replace('.', '/') + "/cache-consumer.xml";
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(config);
context.start();
CacheService cacheService = (CacheService)context.getBean("cacheService");
// 测试缓存生效，多次调用返回同样的结果。(服务器端自增长返回值)
String fix = null;
for (int i = 0; i < 5; i ++) {
String result = cacheService.findCache("0");
if (fix == null || fix.equals(result)) {
System.out.println("OK: " + result);
} else {
System.err.println("ERROR: " + result);
}
fix = result;
Thread.sleep(500);
}
// LRU的缺省cache.size为1000，执行1001次，应有溢出
for (int n = 0; n < 1001; n ++) {
String pre = null;
for (int i = 0; i < 10; i ++) {
String result = cacheService.findCache(String.valueOf(n));
if (pre != null && ! pre.equals(result)) {
System.err.println("ERROR: " + result);
}
pre = result;
}
}
// 测试LRU有移除最开始的一个缓存项
String result = cacheService.findCache("0");
if (fix != null && ! fix.equals(result)) {
System.out.println("OK: " + result);
} else {
System.err.println("ERROR: " + result);
}
}
}