/*
* 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 org.apache.giraph.zk;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.List;
import org.apache.giraph.zk.ZooKeeperExt;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooDefs.Ids;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* Test the ZooKeeperExt class.
*/
public class TestZooKeeperExt implements Watcher {
/** ZooKeeperExt instance */
private ZooKeeperExt zooKeeperExt = null;
/** ZooKeeper server list */
private String zkList = System.getProperty("prop.zookeeper.list");
public static final String BASE_PATH = "/_zooKeeperExtTest";
public static final String FIRST_PATH = "/_first";
public void process(WatchedEvent event) {
return;
}
@Before
public void setUp() {
try {
if (zkList == null) {
return;
}
zooKeeperExt =
new ZooKeeperExt(zkList, 30 * 1000, 0, 0, this);
zooKeeperExt.deleteExt(BASE_PATH, -1, true);
} catch (KeeperException.NoNodeException e) {
System.out.println("Clean start: No node " + BASE_PATH);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@After
public void tearDown() {
if (zooKeeperExt == null) {
return;
}
try {
zooKeeperExt.close();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
@Test
public void testCreateExt() throws KeeperException, InterruptedException {
if (zooKeeperExt == null) {
System.out.println(
"testCreateExt: No prop.zookeeper.list set, skipping test");
return;
}
System.out.println("Created: " +
zooKeeperExt.createExt(
BASE_PATH + FIRST_PATH,
null,
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT,
true));
zooKeeperExt.deleteExt(BASE_PATH + FIRST_PATH, -1, false);
zooKeeperExt.deleteExt(BASE_PATH, -1, false);
}
@Test
public void testDeleteExt() throws KeeperException, InterruptedException {
if (zooKeeperExt == null) {
System.out.println(
"testDeleteExt: No prop.zookeeper.list set, skipping test");
return;
}
zooKeeperExt.createExt(BASE_PATH,
null,
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT,
false);
zooKeeperExt.createExt(BASE_PATH + FIRST_PATH,
null,
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT,
false);
try {
zooKeeperExt.deleteExt(BASE_PATH, -1, false);
} catch (KeeperException.NotEmptyException e) {
System.out.println(
"Correctly failed to delete since not recursive");
}
zooKeeperExt.deleteExt(BASE_PATH, -1, true);
}
@Test
public void testGetChildrenExt()
throws KeeperException, InterruptedException {
if (zooKeeperExt == null) {
System.out.println(
"testGetChildrenExt: No prop.zookeeper.list set, skipping test");
return;
}
zooKeeperExt.createExt(BASE_PATH,
null,
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT,
false);
zooKeeperExt.createExt(BASE_PATH + "/b",
null,
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT_SEQUENTIAL,
false);
zooKeeperExt.createExt(BASE_PATH + "/a",
null,
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT_SEQUENTIAL,
false);
zooKeeperExt.createExt(BASE_PATH + "/d",
null,
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT_SEQUENTIAL,
false);
zooKeeperExt.createExt(BASE_PATH + "/c",
null,
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT_SEQUENTIAL,
false);
List<String> fullPathList =
zooKeeperExt.getChildrenExt(BASE_PATH, false, false, true);
for (String fullPath : fullPathList) {
assertTrue(fullPath.contains(BASE_PATH + "/"));
}
List<String> sequenceOrderedList =
zooKeeperExt.getChildrenExt(BASE_PATH, false, true, true);
for (String fullPath : sequenceOrderedList) {
assertTrue(fullPath.contains(BASE_PATH + "/"));
}
assertEquals(4, sequenceOrderedList.size());
assertTrue(sequenceOrderedList.get(0).contains("/b"));
assertTrue(sequenceOrderedList.get(1).contains("/a"));
assertTrue(sequenceOrderedList.get(2).contains("/d"));
assertTrue(sequenceOrderedList.get(3).contains("/c"));
}
}