com.renren.Wario.zookeeper.test.ZooKeeperClientTest.java Source code

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Here is the source code for com.renren.Wario.zookeeper.test.ZooKeeperClientTest.java

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/**
 *    Copyright 2014 Renren.com
 *
 *    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.renren.Wario.zookeeper.test;

import java.io.File;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.concurrent.CountDownLatch;

import org.apache.log4j.PropertyConfigurator;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.Watcher.Event.EventType;
import org.apache.zookeeper.Watcher.Event.KeeperState;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.ZooKeeper;
import org.apache.zookeeper.data.ACL;
import org.apache.zookeeper.data.Id;
import org.apache.zookeeper.data.Stat;
import org.apache.zookeeper.server.auth.DigestAuthenticationProvider;
import org.apache.zookeeper.server.quorum.QuorumPeerMain;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;

import com.renren.Wario.zookeeper.ZooKeeperClient;

public class ZooKeeperClientTest {
    private static class ZooKeeperBackgroundServer extends Thread {
        private final String port;

        public ZooKeeperBackgroundServer(String port) {
            this.port = port;
        }

        @Override
        public void run() {
            String[] args = new String[2];
            args[0] = port;
            args[1] = "./zk_test_data/zkdata" + this.getId();
            QuorumPeerMain.main(args);
        }
    }

    private static ZooKeeperBackgroundServer zkBackgroundServer = null;

    @BeforeClass
    public static void init() {
        new File("Wario.log").delete();
        System.setProperty("default.config.path", "./");
        PropertyConfigurator.configure(
                System.getProperty("user.dir") + File.separator + "conf" + File.separator + "log4j.properties");
    }

    @Test
    public void generalTest() throws InterruptedException, IOException, KeeperException {
        final ZooKeeperClient zooKeeperClient = new ZooKeeperClient("localhost:2181", 5000);
        Assert.assertFalse(zooKeeperClient.isAvailable());
        new Thread() {
            @Override
            public void run() {
                zooKeeperClient.createConnection();
            }
        }.start();

        Assert.assertFalse(zooKeeperClient.isAvailable());

        if (zkBackgroundServer == null) {
            zkBackgroundServer = new ZooKeeperBackgroundServer("2181");
            zkBackgroundServer.setDaemon(true);
            zkBackgroundServer.start();
            try {
                Thread.sleep(6000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        Assert.assertTrue(zooKeeperClient.isAvailable());
        Assert.assertEquals("localhost:2181", zooKeeperClient.getConnectionString());
        Assert.assertEquals(5000, zooKeeperClient.getSessionTimeout());
        Assert.assertTrue(zooKeeperClient.isAvailable());
        zooKeeperClient.releaseConnection();
        Assert.assertFalse(zooKeeperClient.isAvailable());
        zooKeeperClient.createConnection();
        Assert.assertTrue(zooKeeperClient.isAvailable());

        CountDownLatch countDownLatch = new CountDownLatch(1);
        ZooKeeper zk = new ZooKeeper("localhost:2181", 2000, new MyWatcher(countDownLatch));
        countDownLatch.await();

        try {
            ArrayList<ACL> acls = new ArrayList<ACL>();
            Id id = new Id("digest", DigestAuthenticationProvider.generateDigest("admin:admin"));
            ACL acl = new ACL(ZooDefs.Perms.ALL, id);
            acls.add(acl);
            zk.create("/testACL", "testACL".getBytes(), acls, CreateMode.PERSISTENT);

            ZooKeeperClient zooKeeperClient2 = new ZooKeeperClient("localhost:2181", 2000, "", "admin:admin");
            zooKeeperClient2.createConnection();
            Assert.assertEquals("testACL", new String(zooKeeperClient2.getData("/testACL", new Stat())));

        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (KeeperException e) {
            e.printStackTrace();
        } finally {
            zk.delete("/testACL", -1);
        }
    }

    private class MyWatcher implements Watcher {

        private CountDownLatch coutCountDownLatch;

        public MyWatcher(CountDownLatch countDownLatch) {
            this.coutCountDownLatch = countDownLatch;
        }

        @Override
        public void process(WatchedEvent event) {
            System.err.println("MyWatcher " + event.getType() + " | " + event.getState());
            if (event.getType() == EventType.None) {
                if (event.getState().equals(KeeperState.SyncConnected)) {
                    coutCountDownLatch.countDown();
                }
            }
        }
    }
}