/*
* 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.activemq.artemis.tests.integration.discovery;
import java.net.InetAddress;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.api.core.ActiveMQBuffers;
import org.apache.activemq.artemis.api.core.BroadcastEndpoint;
import org.apache.activemq.artemis.api.core.BroadcastEndpointFactory;
import org.apache.activemq.artemis.api.core.UDPBroadcastEndpointFactory;
import org.apache.activemq.artemis.core.cluster.DiscoveryGroup;
import org.apache.activemq.artemis.core.server.cluster.impl.BroadcastGroupImpl;
import org.apache.activemq.artemis.utils.ActiveMQThreadFactory;
import org.apache.activemq.artemis.utils.RandomUtil;
import org.junit.Before;
import org.junit.Test;
/**
* This is to make sure discovery works fine even when garbled data is sent
*/
public class DiscoveryStayAliveTest extends DiscoveryBaseTest {
ScheduledExecutorService scheduledExecutorService;
@Override
@Before
public void setUp() throws Exception {
super.setUp();
scheduledExecutorService = new ScheduledThreadPoolExecutor(1, new ActiveMQThreadFactory("ActiveMQ-scheduled-threads", false, Thread.currentThread().getContextClassLoader()));
}
@Override
public void tearDown() throws Exception {
scheduledExecutorService.shutdown();
super.tearDown();
}
@Test
public void testDiscoveryRunning() throws Throwable {
final InetAddress groupAddress = InetAddress.getByName(address1);
final int groupPort = getUDPDiscoveryPort();
final int timeout = 500;
final DiscoveryGroup dg = newDiscoveryGroup(RandomUtil.randomString(), RandomUtil.randomString(), InetAddress.getByName("localhost"), groupAddress, groupPort, timeout);
final AtomicInteger errors = new AtomicInteger(0);
Thread t = new Thread() {
@Override
public void run() {
try {
dg.internalRunning();
} catch (Throwable e) {
e.printStackTrace();
errors.incrementAndGet();
}
}
};
t.start();
BroadcastGroupImpl bg = null;
try {
bg = new BroadcastGroupImpl(new FakeNodeManager("test-nodeID"), RandomUtil.randomString(), 1, scheduledExecutorService, new UDPBroadcastEndpointFactory().setGroupAddress(address1).
setGroupPort(groupPort));
bg.start();
bg.addConnector(generateTC());
for (int i = 0; i < 10; i++) {
BroadcastEndpointFactory factoryEndpoint = new UDPBroadcastEndpointFactory().setGroupAddress(address1).
setGroupPort(groupPort).setLocalBindAddress("localhost");
sendBadData(factoryEndpoint);
}
Thread.sleep(100);
assertTrue(t.isAlive());
assertEquals(0, errors.get());
} finally {
if (bg != null) {
bg.stop();
}
if (dg != null) {
dg.stop();
}
t.join(1000);
// it will retry for a limited time only
for (int i = 0; t.isAlive() && i < 100; i++) {
t.interrupt();
Thread.sleep(100);
}
}
}
private static void sendBadData(BroadcastEndpointFactory factoryEndpoint) throws Exception {
BroadcastEndpoint endpoint = factoryEndpoint.createBroadcastEndpoint();
ActiveMQBuffer buffer = ActiveMQBuffers.dynamicBuffer(500);
buffer.writeString("This is a test1!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
buffer.writeString("This is a test2!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
byte[] bytes = new byte[buffer.writerIndex()];
buffer.readBytes(bytes);
// messing up with the string!!!
for (int i = bytes.length - 10; i < bytes.length; i++) {
bytes[i] = 0;
}
endpoint.openBroadcaster();
endpoint.broadcast(bytes);
endpoint.close(true);
}
}