/**
* 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.s4.core.moduleloader;
import java.io.File;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import junit.framework.Assert;
import org.apache.s4.base.Emitter;
import org.apache.s4.base.Event;
import org.apache.s4.base.SerializerDeserializer;
import org.apache.s4.comm.DefaultCommModule;
import org.apache.s4.comm.serialize.SerializerDeserializerFactory;
import org.apache.s4.comm.tcp.TCPEmitter;
import org.apache.s4.comm.topology.ZkClient;
import org.apache.s4.core.BaseModule;
import org.apache.s4.core.S4Node;
import org.apache.s4.core.util.AppConfig;
import org.apache.s4.deploy.DeploymentUtils;
import org.apache.s4.fixtures.CommTestUtils;
import org.apache.s4.fixtures.CoreTestUtils;
import org.apache.s4.wordcount.WordCountApp;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.ZooKeeper;
import com.beust.jcommander.internal.Lists;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import com.google.common.io.Resources;
import com.google.inject.Guice;
import com.google.inject.Injector;
public class ModuleLoaderTestUtils {
private static final int NB_MESSAGES = 10;
public static Process testModuleLoader(boolean fork) throws Exception {
Process forkedS4Node = null;
// build custom-modules.jar
File gradlewFile = CoreTestUtils.findGradlewInRootDir();
CoreTestUtils.callGradleTask(new File(gradlewFile.getParentFile().getAbsolutePath()
+ "/test-apps/custom-modules/build.gradle"), "clean", new String[0]);
File modulesJarFile = new File(gradlewFile.getParentFile().getAbsolutePath()
+ "/test-apps/custom-modules/build/libs/app/custom-modules.jar");
Assert.assertFalse(modulesJarFile.exists());
CoreTestUtils.callGradleTask(new File(gradlewFile.getParentFile().getAbsolutePath()
+ "/test-apps/custom-modules/build.gradle"), "jar", new String[0]);
// make sure it is created
Assert.assertTrue(modulesJarFile.exists());
// pass it as a configuration
DeploymentUtils.initAppConfig(
new AppConfig.Builder().appClassName(WordCountApp.class.getName())
.customModulesURIs(ImmutableList.of(modulesJarFile.toURI().toString()))
.customModulesNames(ImmutableList.of("org.apache.s4.TestListenerModule")).build(), "cluster1",
true, "localhost:2181");
if (fork) {
forkedS4Node = CoreTestUtils.forkS4Node(new String[] { "-c", "cluster1" }, new ZkClient("localhost:2181"),
10, "cluster1");
} else {
S4Node.main(new String[] { "-c", "cluster1" });
}
Injector injector = Guice.createInjector(new BaseModule(Resources.getResource("default.s4.base.properties")
.openStream(), "cluster1"), new DefaultCommModule(Resources.getResource("default.s4.comm.properties")
.openStream()));
Emitter emitter = injector.getInstance(TCPEmitter.class);
List<Long> messages = Lists.newArrayList();
for (int i = 0; i < NB_MESSAGES; i++) {
messages.add(System.currentTimeMillis());
}
ZkClient zkClient = new ZkClient("localhost:2181");
zkClient.create("/test", 0, CreateMode.PERSISTENT);
final ZooKeeper zk = CommTestUtils.createZkClient();
final CountDownLatch signalMessagesReceived = new CountDownLatch(1);
// watch for last message in test data sequence
CoreTestUtils.watchAndSignalCreation("/test/data" + Strings.padStart(String.valueOf(NB_MESSAGES - 1), 10, '0'),
signalMessagesReceived, zk);
SerializerDeserializer serDeser = injector.getInstance(SerializerDeserializerFactory.class)
.createSerializerDeserializer(Thread.currentThread().getContextClassLoader());
for (Long message : messages) {
Event event = new Event();
event.put("message", long.class, message);
event.setStreamId("inputStream");
emitter.send(0, serDeser.serialize(event));
}
// check sequential nodes in zk with correct data
Assert.assertTrue(signalMessagesReceived.await(10, TimeUnit.SECONDS));
List<String> children = zkClient.getChildren("/test");
for (String child : children) {
Long data = zkClient.readData("/test/" + child);
Assert.assertTrue(messages.contains(data));
}
return forkedS4Node;
}
}