/*
* Copyright (c) 2014 Spotify AB.
*
* 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 com.spotify.helios.servicescommon;
import com.spotify.helios.TemporaryPorts;
import com.spotify.helios.agent.AgentParser;
import com.spotify.helios.common.LoggingConfig;
import com.spotify.helios.master.MasterParser;
import com.spotify.logging.LoggingConfigurator;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class SentryTest {
private static final Logger log = LoggerFactory.getLogger(SentryTest.class);
@Rule public TemporaryPorts temporaryPorts = TemporaryPorts.create();
private static final int UDP_SERVER_TIMEOUT = 60000;
private int sentryPort;
private String testDsn;
@Before
public void setup() {
sentryPort = temporaryPorts.localPort("sentry");
testDsn = String.format("udp://1:1@localhost:%d/1", sentryPort);
}
@Test
public void testMasterParserAndConfig() throws Exception {
final String dsn = new MasterParser("--sentry-dsn", testDsn).getMasterConfig().getSentryDsn();
assertEquals("wrong sentry DSN", testDsn, dsn);
}
@Test
public void testAgentParserAndConfig() throws Exception {
final String dsn = new AgentParser("--sentry-dsn", testDsn).getAgentConfig().getSentryDsn();
assertEquals("wrong sentry DSN", testDsn, dsn);
}
@Test
public void testSentryAppender() throws Exception {
// start our UDP server which will receive sentry messages
final UdpServer udpServer = new UdpServer(sentryPort);
// turn on logging which enables the sentry appender
final LoggingConfig config = new LoggingConfig(0, true, null, false);
ServiceMain.setupLogging(config, testDsn);
// log a message at error level so sentry appender sends it to UDP server
log.error("Ignore test message printed by Helios SentryTest");
// be nice and turn logging back off
LoggingConfigurator.configureNoLogging();
// make sure we got the message as expected, note that getMessage is a blocking method
final String message = udpServer.getMessage();
assertTrue("Expected message beginning with 'Sentry', instead got " + message,
message.startsWith("Sentry"));
}
/**
* Simple Udp server which will listen on the specified port when constructed. It stores the
* first message it receives, and then stops listening for more messages. The message can be
* retrieved using the getMessage method. Both run and getMessage are synchronized so that
* getMessage will block until the run method has exited, meaning we've either received a message
* or the receive operation has timed out.
*/
private static class UdpServer implements Runnable {
private final DatagramSocket serverSocket;
private String message;
private UdpServer(int port) throws SocketException, InterruptedException {
serverSocket = new DatagramSocket(port);
serverSocket.setSoTimeout(UDP_SERVER_TIMEOUT);
final Thread thread = new Thread(this);
thread.setDaemon(true);
thread.start();
}
@Override
public synchronized void run() {
final byte[] data = new byte[1024];
final DatagramPacket packet = new DatagramPacket(data, data.length);
try {
serverSocket.receive(packet);
message = new String(packet.getData()).trim();
} catch (IOException e) {
message = "Exception while receiving sentry call. " + e.getMessage();
}
}
public synchronized String getMessage() throws InterruptedException {
return message;
}
}
}