com.netflix.curator.framework.recipes.locks.TestChildReaper.java Source code

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Here is the source code for com.netflix.curator.framework.recipes.locks.TestChildReaper.java

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/*
 * Copyright 2012 Netflix, Inc.
 *
 *    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.netflix.curator.framework.recipes.locks;

import java.util.Random;

import org.apache.commons.io.IOUtils;
import org.apache.zookeeper.data.Stat;
import org.testng.Assert;
import org.testng.annotations.Test;

import com.netflix.curator.framework.CuratorFramework;
import com.netflix.curator.framework.CuratorFrameworkFactory;
import com.netflix.curator.framework.recipes.BaseClassForTests;
import com.netflix.curator.retry.RetryOneTime;
import com.netflix.curator.test.Timing;

public class TestChildReaper extends BaseClassForTests {
    @Test
    public void testSomeNodes() throws Exception {

        Timing timing = new Timing();
        ChildReaper reaper = null;
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(),
                timing.connection(), new RetryOneTime(1));
        try {
            client.start();

            Random r = new Random();
            int nonEmptyNodes = 0;
            for (int i = 0; i < 10; ++i) {
                client.create().creatingParentsIfNeeded().forPath("/test/" + Integer.toString(i));
                if (r.nextBoolean()) {
                    client.create().forPath("/test/" + Integer.toString(i) + "/foo");
                    ++nonEmptyNodes;
                }
            }

            reaper = new ChildReaper(client, "/test", Reaper.Mode.REAP_UNTIL_DELETE, 1);
            reaper.start();

            timing.forWaiting().sleepABit();

            Stat stat = client.checkExists().forPath("/test");
            Assert.assertEquals(stat.getNumChildren(), nonEmptyNodes);
        } finally {
            IOUtils.closeQuietly(reaper);
            IOUtils.closeQuietly(client);
        }
    }

    @Test
    public void testSimple() throws Exception {
        Timing timing = new Timing();
        ChildReaper reaper = null;
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(),
                timing.connection(), new RetryOneTime(1));
        try {
            client.start();

            for (int i = 0; i < 10; ++i) {
                client.create().creatingParentsIfNeeded().forPath("/test/" + Integer.toString(i));
            }

            reaper = new ChildReaper(client, "/test", Reaper.Mode.REAP_UNTIL_DELETE, 1);
            reaper.start();

            timing.forWaiting().sleepABit();

            Stat stat = client.checkExists().forPath("/test");
            Assert.assertEquals(stat.getNumChildren(), 0);
        } finally {
            IOUtils.closeQuietly(reaper);
            IOUtils.closeQuietly(client);
        }
    }

    @Test
    public void testNamespace() throws Exception {
        Timing timing = new Timing();
        ChildReaper reaper = null;
        CuratorFramework client = CuratorFrameworkFactory.builder().connectString(server.getConnectString())
                .sessionTimeoutMs(timing.session()).connectionTimeoutMs(timing.connection())
                .retryPolicy(new RetryOneTime(1)).namespace("foo").build();
        try {
            client.start();

            for (int i = 0; i < 10; ++i) {
                client.create().creatingParentsIfNeeded().forPath("/test/" + Integer.toString(i));
            }

            reaper = new ChildReaper(client, "/test", Reaper.Mode.REAP_UNTIL_DELETE, 1);
            reaper.start();

            timing.forWaiting().sleepABit();

            Stat stat = client.checkExists().forPath("/test");
            Assert.assertEquals(stat.getNumChildren(), 0);

            stat = client.usingNamespace(null).checkExists().forPath("/foo/test");
            Assert.assertNotNull(stat);
            Assert.assertEquals(stat.getNumChildren(), 0);
        } finally {
            IOUtils.closeQuietly(reaper);
            IOUtils.closeQuietly(client);
        }
    }
}