/**
* 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.drill.exec;
import com.google.common.collect.ImmutableList;
import org.apache.drill.common.config.DrillConfig;
import org.apache.drill.exec.exception.DrillbitStartupException;
import org.apache.drill.exec.server.Drillbit;
import org.apache.drill.exec.util.MiniZooKeeperCluster;
import org.junit.BeforeClass;
import org.slf4j.Logger;
import java.io.File;
import java.io.IOException;
import java.util.List;
import static com.google.common.base.Throwables.propagate;
/**
* Base class for Drill system tests.
* Starts one or more Drillbits, an embedded ZooKeeper cluster and provides a configured client for testing.
*/
public class DrillSystemTestBase {
static final Logger logger = org.slf4j.LoggerFactory.getLogger(DrillConfig.class);
private static File testDir = new File("target/test-data");
private static DrillConfig config;
private static String zkUrl;
private List<Drillbit> servers;
private MiniZooKeeperCluster zkCluster;
@BeforeClass
public static void setUp() throws Exception {
config = DrillConfig.create();
zkUrl = config.getString(ExecConstants.ZK_CONNECTION);
setupTestDir();
}
private static void setupTestDir() {
if (!testDir.exists()) {
testDir.mkdirs();
}
}
public void startCluster(int numServers) {
try {
ImmutableList.Builder<Drillbit> servers = ImmutableList.builder();
for (int i = 0; i < numServers; i++) {
servers.add(Drillbit.start(config));
}
this.servers = servers.build();
} catch (DrillbitStartupException e) {
propagate(e);
}
}
public void startZookeeper(int numServers) {
try {
this.zkCluster = new MiniZooKeeperCluster();
zkCluster.setDefaultClientPort(Integer.parseInt(this.zkUrl.split(":")[1]));
zkCluster.startup(testDir, numServers);
} catch (IOException e) {
propagate(e);
} catch (InterruptedException e) {
propagate(e);
}
}
public void stopCluster() {
if (servers != null) {
for (Drillbit server : servers) {
try {
server.close();
} catch (Exception e) {
logger.warn("Error shutting down Drillbit", e);
}
}
}
}
public void stopZookeeper() {
try {
this.zkCluster.shutdown();
} catch (IOException e) {
propagate(e);
}
}
public Drillbit getABit(){
return this.servers.iterator().next();
}
public static DrillConfig getConfig(){
return config;
}
}