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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.smoketest;
import org.apache.lucene.util.LuceneTestCase;
import org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.ESLoggerFactory;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.node.internal.InternalSettingsPreparer;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.URL;
import java.net.UnknownHostException;
import java.nio.file.Path;
import java.util.Locale;
import java.util.concurrent.atomic.AtomicInteger;
import static com.carrotsearch.randomizedtesting.RandomizedTest.randomAsciiOfLength;
import static org.hamcrest.Matchers.notNullValue;
/**
* {@link ESSmokeClientTestCase} is an abstract base class to run integration
* tests against an external Elasticsearch Cluster.
* <p>
* You can define a list of transport addresses from where you can reach your cluster
* by setting "tests.cluster" system property. It defaults to "localhost:9300".
* <p>
* All tests can be run from maven using mvn install as maven will start an external cluster first.
* <p>
* If you want to debug this module from your IDE, then start an external cluster by yourself
* then run JUnit. If you changed the default port, set "tests.cluster=localhost:PORT" when running
* your test.
*/
@LuceneTestCase.SuppressSysoutChecks(bugUrl = "we log a lot on purpose")
public abstract class ESSmokeClientTestCase extends LuceneTestCase {
/**
* Key used to eventually switch to using an external cluster and provide its transport addresses
*/
public static final String TESTS_CLUSTER = "tests.cluster";
/**
* Defaults to localhost:9300
*/
public static final String TESTS_CLUSTER_DEFAULT = "localhost:9300";
protected static final ESLogger logger = ESLoggerFactory.getLogger(ESSmokeClientTestCase.class.getName());
private static final AtomicInteger counter = new AtomicInteger();
private static Client client;
private static String clusterAddresses;
protected String index;
private static Client startClient(Path tempDir, TransportAddress... transportAddresses) {
Settings clientSettings = Settings.settingsBuilder()
.put("name", "qa_smoke_client_" + counter.getAndIncrement())
.put(InternalSettingsPreparer.IGNORE_SYSTEM_PROPERTIES_SETTING, true) // prevents any settings to be replaced by system properties.
.put("client.transport.ignore_cluster_name", true)
.put("path.home", tempDir)
.put("node.mode", "network").build(); // we require network here!
TransportClient.Builder transportClientBuilder = TransportClient.builder().settings(clientSettings);
TransportClient client = transportClientBuilder.build().addTransportAddresses(transportAddresses);
logger.info("--> Elasticsearch Java TransportClient started");
Exception clientException = null;
try {
ClusterHealthResponse health = client.admin().cluster().prepareHealth().get();
logger.info("--> connected to [{}] cluster which is running [{}] node(s).",
health.getClusterName(), health.getNumberOfNodes());
} catch (Exception e) {
clientException = e;
}
assumeNoException("Sounds like your cluster is not running at " + clusterAddresses, clientException);
return client;
}
private static Client startClient() throws IOException {
String[] stringAddresses = clusterAddresses.split(",");
TransportAddress[] transportAddresses = new TransportAddress[stringAddresses.length];
int i = 0;
for (String stringAddress : stringAddresses) {
URL url = new URL("http://" + stringAddress);
InetAddress inetAddress = InetAddress.getByName(url.getHost());
transportAddresses[i++] = new InetSocketTransportAddress(new InetSocketAddress(inetAddress, url.getPort()));
}
return startClient(createTempDir(), transportAddresses);
}
public static Client getClient() {
if (client == null) {
try {
client = startClient();
} catch (IOException e) {
logger.error("can not start the client", e);
}
assertThat(client, notNullValue());
}
return client;
}
@BeforeClass
public static void initializeSettings() throws UnknownHostException {
clusterAddresses = System.getProperty(TESTS_CLUSTER);
if (clusterAddresses == null || clusterAddresses.isEmpty()) {
clusterAddresses = TESTS_CLUSTER_DEFAULT;
logger.info("[{}] not set. Falling back to [{}]", TESTS_CLUSTER, TESTS_CLUSTER_DEFAULT);
}
}
@AfterClass
public static void stopTransportClient() {
if (client != null) {
client.close();
client = null;
}
}
@Before
public void defineIndexName() {
doClean();
index = "qa-smoke-test-client-" + randomAsciiOfLength(10).toLowerCase(Locale.getDefault());
}
@After
public void cleanIndex() {
doClean();
}
private void doClean() {
if (client != null) {
try {
client.admin().indices().prepareDelete(index).get();
} catch (Exception e) {
// We ignore this cleanup exception
}
}
}
}
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