/*
* 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.flume.source;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Writer;
import java.net.InetSocketAddress;
import java.nio.channels.Channels;
import java.nio.channels.SocketChannel;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.Collection;
import java.util.Arrays;
import com.google.common.collect.Lists;
import org.apache.flume.Channel;
import org.apache.flume.ChannelSelector;
import org.apache.flume.Context;
import org.apache.flume.Event;
import org.apache.flume.EventDeliveryException;
import org.apache.flume.EventDrivenSource;
import org.apache.flume.FlumeException;
import org.apache.flume.Transaction;
import org.apache.flume.channel.ChannelProcessor;
import org.apache.flume.channel.MemoryChannel;
import org.apache.flume.channel.ReplicatingChannelSelector;
import org.apache.flume.conf.Configurables;
import org.apache.flume.lifecycle.LifecycleException;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@RunWith(value = Parameterized.class)
public class TestNetcatSource {
private Channel channel;
private EventDrivenSource source;
private boolean ackEveryEvent;
private static final Logger logger =
LoggerFactory.getLogger(TestNetcatSource.class);
public TestNetcatSource(boolean ackForEveryEvent) {
ackEveryEvent = ackForEveryEvent;
}
@Parameters
public static Collection data() {
Object[][] data = new Object[][] { { true }, { false } };
return Arrays.asList(data);
}
@Before
public void setUp() {
logger.info("Running setup");
channel = new MemoryChannel();
source = new NetcatSource();
Context context = new Context();
Configurables.configure(channel, context);
List<Channel> channels = Lists.newArrayList(channel);
ChannelSelector rcs = new ReplicatingChannelSelector();
rcs.setChannels(channels);
source.setChannelProcessor(new ChannelProcessor(rcs));
}
@Test
public void testLifecycle() throws InterruptedException, LifecycleException,
EventDeliveryException {
ExecutorService executor = Executors.newFixedThreadPool(3);
boolean bound = false;
for(int i = 0; i < 100 && !bound; i++) {
try {
Context context = new Context();
context.put("bind", "0.0.0.0");
context.put("port", "41414");
context.put("ack-every-event", String.valueOf(ackEveryEvent));
Configurables.configure(source, context);
source.start();
bound = true;
} catch (FlumeException e) {
// assume port in use, try another one
}
}
Runnable clientRequestRunnable = new Runnable() {
@Override
public void run() {
try {
SocketChannel clientChannel = SocketChannel
.open(new InetSocketAddress(41414));
Writer writer = Channels.newWriter(clientChannel, "utf-8");
BufferedReader reader = new BufferedReader(
Channels.newReader(clientChannel, "utf-8"));
writer.write("Test message\n");
writer.flush();
if (ackEveryEvent) {
String response = reader.readLine();
Assert.assertEquals("Server should return OK", "OK", response);
} else {
Assert.assertFalse("Server should not return anything", reader.ready());
}
clientChannel.close();
} catch (IOException e) {
logger.error("Caught exception: ", e);
}
}
};
ChannelSelector selector = source.getChannelProcessor().getSelector();
Transaction tx = selector.getAllChannels().get(0).getTransaction();
tx.begin();
for (int i = 0; i < 100; i++) {
logger.info("Sending request");
executor.submit(clientRequestRunnable);
Event event = channel.take();
Assert.assertNotNull(event);
Assert.assertArrayEquals("Test message".getBytes(), event.getBody());
}
tx.commit();
tx.close();
executor.shutdown();
while (!executor.isTerminated()) {
executor.awaitTermination(500, TimeUnit.MILLISECONDS);
}
source.stop();
}
}