/*
* Copyright 2013-2014 the original author or authors.
*
* 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 org.springframework.xd.dirt.config;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.fail;
import org.junit.After;
import org.junit.Test;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.xd.dirt.server.SingleNodeApplication;
import org.springframework.xd.dirt.server.TestApplicationBootstrap;
import org.springframework.xd.dirt.zookeeper.EmbeddedZooKeeper;
import org.springframework.xd.dirt.zookeeper.ZooKeeperConnection;
/**
*
* @author David Turanski
*/
public class ZookeeperClientConnectTests {
private TestApplicationBootstrap testApplicationBootstrap;
private SingleNodeApplication singleNodeApplication;
private AbstractApplicationContext containerContext;
private AbstractApplicationContext adminContext;
public final void setUp(String zkClientConnect, Integer zkEmbeddedServerPort, boolean isConfigured) {
System.setProperty("xd.extensions.basepackages", this.getClass().getPackage().getName());
System.setProperty("zk.client.connect", zkClientConnect);
if (zkEmbeddedServerPort != null) {
System.setProperty("zk.embedded.server.port", zkEmbeddedServerPort.toString());
}
if (isConfigured) {
System.setProperty("zk.client.connection.configured", "true");
}
this.testApplicationBootstrap = new TestApplicationBootstrap();
this.singleNodeApplication = testApplicationBootstrap.getSingleNodeApplication();
singleNodeApplication.run();
this.containerContext = (AbstractApplicationContext) this.singleNodeApplication.containerContext();
this.adminContext = (AbstractApplicationContext) this.singleNodeApplication.adminContext();
}
@Test
public void testEmbeddedZooKeeper() {
setUp("", 5555, false);
String zkCLientConnect = this.containerContext.getEnvironment().getProperty("zk.client.connect");
assertEquals("", zkCLientConnect);
EmbeddedZooKeeper zkServer = this.containerContext.getBean(EmbeddedZooKeeper.class);
assertEquals(5555, zkServer.getClientPort());
this.adminContext.getBean(EmbeddedZooKeeper.class);
System.clearProperty("zk.client.connect");
System.clearProperty("zk.embedded.server.port");
}
/**
* This test assumes there is no ZK server running for the connect string. It should work either way since the test
* does not actually connect. It overrides the ZK RetryPolicy to not attempt a reconnect. {@see
* ZooKeeperConnectionConfiguration}. Without that, this test will hang for a very long time.
*/
@Test
public void testZooKeeperClientConnectString() {
String zkClientConnect = "localhost:2181,localhost:2182,localhost:2183";
setUp(zkClientConnect, null, true);
ZooKeeperConnection zooKeeperConnection = this.containerContext.getBean(ZooKeeperConnection.class);
zooKeeperConnection.start();
assertFalse(zooKeeperConnection.getRetryPolicy().allowRetry(0, 0, null));
String actualClientConnect = this.containerContext.getEnvironment().getProperty("zk.client.connect");
assertEquals(zkClientConnect, actualClientConnect);
try {
this.containerContext.getBean(EmbeddedZooKeeper.class);
fail("EmbeddedZookeeper instance should not be created with connection String set");
}
catch (Exception e) {
}
finally {
System.clearProperty("zk.client.connect");
System.clearProperty("zk.embedded.server.port");
System.clearProperty("xd.extensions.basepackages");
System.clearProperty("zk.client.connection.configured");
}
}
@After
public final void shutDown() {
this.singleNodeApplication.close();
}
}