/**
* 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.test;
import java.io.File;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.HashMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.zookeeper.PortAssignment;
import org.apache.zookeeper.ZKTestCase;
import org.apache.zookeeper.server.quorum.FastLeaderElection;
import org.apache.zookeeper.server.quorum.QuorumCnxManager;
import org.apache.zookeeper.server.quorum.QuorumPeer;
import org.apache.zookeeper.server.quorum.QuorumPeer.QuorumServer;
import org.apache.zookeeper.server.quorum.QuorumPeer.ServerState;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class FLELostMessageTest extends ZKTestCase {
protected static final Logger LOG = LoggerFactory.getLogger(FLELostMessageTest.class);
int count;
HashMap<Long,QuorumServer> peers;
File tmpdir[];
int port[];
QuorumCnxManager cnxManager;
@Before
public void setUp() throws Exception {
count = 3;
peers = new HashMap<Long,QuorumServer>(count);
tmpdir = new File[count];
port = new int[count];
}
@After
public void tearDown() throws Exception {
cnxManager.halt();
}
@Test
public void testLostMessage() throws Exception {
FastLeaderElection le[] = new FastLeaderElection[count];
LOG.info("TestLE: " + getTestName()+ ", " + count);
for(int i = 0; i < count; i++) {
int clientport = PortAssignment.unique();
peers.put(Long.valueOf(i),
new QuorumServer(i,
new InetSocketAddress(clientport),
new InetSocketAddress(PortAssignment.unique())));
tmpdir[i] = ClientBase.createTmpDir();
port[i] = clientport;
}
/*
* Start server 0
*/
QuorumPeer peer = new QuorumPeer(peers, tmpdir[1], tmpdir[1], port[1], 3, 1, 1000, 2, 2);
peer.startLeaderElection();
FLETestUtils.LEThread thread = new FLETestUtils.LEThread(peer, 1);
thread.start();
/*
* Start mock server 1
*/
mockServer();
thread.join(5000);
if (thread.isAlive()) {
Assert.fail("Threads didn't join");
}
}
void mockServer() throws InterruptedException, IOException {
/*
* Create an instance of the connection manager
*/
QuorumPeer peer = new QuorumPeer(peers, tmpdir[0], tmpdir[0], port[0], 3, 0, 1000, 2, 2);
cnxManager = new QuorumCnxManager(peer);
QuorumCnxManager.Listener listener = cnxManager.listener;
listener.start();
cnxManager.toSend(1l, FLETestUtils.createMsg(ServerState.LOOKING.ordinal(), 0, 0, 1));
cnxManager.recvQueue.take();
cnxManager.toSend(1L, FLETestUtils.createMsg(ServerState.FOLLOWING.ordinal(), 1, 0, 1));
}
}