/**
* 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.zookeeper.server.admin;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import org.apache.zookeeper.PortAssignment;
import org.apache.zookeeper.ZKTestCase;
import org.apache.zookeeper.server.ZooKeeperServerMainTest;
import org.apache.zookeeper.server.admin.AdminServer.AdminServerException;
import org.apache.zookeeper.server.quorum.QuorumPeerTestBase;
import org.apache.zookeeper.test.ClientBase;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class JettyAdminServerTest extends ZKTestCase{
protected static final Logger LOG = LoggerFactory.getLogger(JettyAdminServerTest.class);
private static final String URL_FORMAT = "http://localhost:%d/commands";
private static final int jettyAdminPort = PortAssignment.unique();
@Before
public void enableServer() {
// Override setting in ZKTestCase
System.setProperty("zookeeper.admin.enableServer", "true");
System.setProperty("zookeeper.admin.serverPort", "" + jettyAdminPort);
}
/**
* Tests that we can start and query a JettyAdminServer.
*/
@Test
public void testJettyAdminServer() throws AdminServerException, IOException {
JettyAdminServer server = new JettyAdminServer();;
try {
server.start();
queryAdminServer(jettyAdminPort);
} finally {
server.shutdown();
}
}
/**
* Starts a standalone server and tests that we can query its AdminServer.
*/
@Test
public void testStandalone() throws Exception {
ClientBase.setupTestEnv();
final int CLIENT_PORT = PortAssignment.unique();
ZooKeeperServerMainTest.MainThread main = new ZooKeeperServerMainTest.MainThread(CLIENT_PORT, false, null);
main.start();
Assert.assertTrue("waiting for server being up",
ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT,
ClientBase.CONNECTION_TIMEOUT));
queryAdminServer(jettyAdminPort);
main.shutdown();
Assert.assertTrue("waiting for server down",
ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT,
ClientBase.CONNECTION_TIMEOUT));
}
/**
* Starts a quorum of two servers and tests that we can query both AdminServers.
*/
@Test
public void testQuorum() throws Exception {
ClientBase.setupTestEnv();
final int CLIENT_PORT_QP1 = PortAssignment.unique();
final int CLIENT_PORT_QP2 = PortAssignment.unique();
final int ADMIN_SERVER_PORT1 = PortAssignment.unique();
final int ADMIN_SERVER_PORT2 = PortAssignment.unique();
String quorumCfgSection = String.format
("server.1=127.0.0.1:%d:%d;%d\nserver.2=127.0.0.1:%d:%d;%d",
PortAssignment.unique(), PortAssignment.unique(), CLIENT_PORT_QP1,
PortAssignment.unique(), PortAssignment.unique(), CLIENT_PORT_QP2
);
QuorumPeerTestBase.MainThread q1 = new QuorumPeerTestBase.MainThread(
1, CLIENT_PORT_QP1, ADMIN_SERVER_PORT1, quorumCfgSection, null);
q1.start();
// Since JettyAdminServer reads a system property to determine its port,
// make sure it initializes itself before setting the system property
// again with the second port number
Thread.sleep(500);
QuorumPeerTestBase.MainThread q2 = new QuorumPeerTestBase.MainThread(
2, CLIENT_PORT_QP2, ADMIN_SERVER_PORT2, quorumCfgSection, null);
q2.start();
Thread.sleep(500);
Assert.assertTrue("waiting for server 1 being up",
ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP1,
ClientBase.CONNECTION_TIMEOUT));
Assert.assertTrue("waiting for server 2 being up",
ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT_QP2,
ClientBase.CONNECTION_TIMEOUT));
queryAdminServer(ADMIN_SERVER_PORT1);
queryAdminServer(ADMIN_SERVER_PORT2);
q1.shutdown();
q2.shutdown();
Assert.assertTrue("waiting for server 1 down",
ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP1,
ClientBase.CONNECTION_TIMEOUT));
Assert.assertTrue("waiting for server 2 down",
ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT_QP2,
ClientBase.CONNECTION_TIMEOUT));
}
/**
* Check that we can load the commands page of an AdminServer running at
* localhost:port. (Note that this should work even if no zk server is set.)
*/
private void queryAdminServer(int port) throws MalformedURLException, IOException {
queryAdminServer(String.format(URL_FORMAT, port));
}
/**
* Check that loading urlStr results in a non-zero length response.
*/
private void queryAdminServer(String urlStr) throws MalformedURLException, IOException {
URL url = new URL(urlStr);
BufferedReader dis = new BufferedReader(new InputStreamReader((url.openStream())));
String line = dis.readLine();
Assert.assertTrue(line.length() > 0);
}
}