root
/
kafka
mirror of https://github.com/apache/kafka.git
1
0
Fork 0
Code Issues Actions 2 Packages Projects Releases Wiki Activity

KAFKA-14594: Move LogDirsCommand to tools module (#13122) 

Reviewers: Mickael Maison <mickael.maison@gmail.com>
This commit is contained in:
Christo Lolov 2023-05-04 11:00:33 +01:00 committed by GitHub
parent d46c3f259c
commit dc7819d7f1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 367 additions and 211 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
bin/kafka-log-dirs.sh
View File

@ -14,4 +14,4 @@
# See the License for the specific language governing permissions and # See the License for the specific language governing permissions and
# limitations under the License. # limitations under the License.
exec $(dirname $0)/kafka-run-class.sh kafka.admin.LogDirsCommand "$@" exec $(dirname $0)/kafka-run-class.sh org.apache.kafka.tools.LogDirsCommand "$@"

2
bin/windows/kafka-log-dirs.bat
View File

@ -14,4 +14,4 @@ rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rem See the License for the specific language governing permissions and rem See the License for the specific language governing permissions and
rem limitations under the License. rem limitations under the License.
"%~dp0kafka-run-class.bat" kafka.admin.LogDirsCommand %* "%~dp0kafka-run-class.bat" org.apache.kafka.tools.LogDirsCommand %*

32
clients/src/test/java/org/apache/kafka/clients/admin/MockAdminClient.java
View File

@ -945,7 +945,37 @@ public class MockAdminClient extends AdminClient {
@Override @Override
synchronized public DescribeLogDirsResult describeLogDirs(Collection<Integer> brokers, synchronized public DescribeLogDirsResult describeLogDirs(Collection<Integer> brokers,
DescribeLogDirsOptions options) { DescribeLogDirsOptions options) {
throw new UnsupportedOperationException("Not implemented yet"); Map<Integer, Map<String, LogDirDescription>> unwrappedResults = new HashMap<>();
for (Integer broker : brokers) {
unwrappedResults.putIfAbsent(broker, new HashMap<>());
}
for (Map.Entry<String, TopicMetadata> entry : allTopics.entrySet()) {
String topicName = entry.getKey();
TopicMetadata topicMetadata = entry.getValue();
// For tests, we make the assumption that there will always be only 1 entry.
List<String> partitionLogDirs = topicMetadata.partitionLogDirs;
List<TopicPartitionInfo> topicPartitionInfos = topicMetadata.partitions;
for (TopicPartitionInfo topicPartitionInfo : topicPartitionInfos) {
List<Node> nodes = topicPartitionInfo.replicas();
for (Node node : nodes) {
Map<String, LogDirDescription> logDirDescriptionMap = unwrappedResults.get(node.id());
LogDirDescription logDirDescription = logDirDescriptionMap.getOrDefault(partitionLogDirs.get(0), new LogDirDescription(null, new HashMap<>()));
logDirDescription.replicaInfos().put(new TopicPartition(topicName, topicPartitionInfo.partition()), new ReplicaInfo(0, 0, false));
}
}
}
Map<Integer, KafkaFuture<Map<String, LogDirDescription>>> results = new HashMap<>();
for (Map.Entry<Integer, Map<String, LogDirDescription>> entry : unwrappedResults.entrySet()) {
KafkaFutureImpl<Map<String, LogDirDescription>> kafkaFuture = new KafkaFutureImpl<>();
kafkaFuture.complete(entry.getValue());
results.put(entry.getKey(), kafkaFuture);
}
return new DescribeLogDirsResult(results);
} }
@Override @Override

132
core/src/main/scala/kafka/admin/LogDirsCommand.scala
View File

@ -1,132 +0,0 @@
/**
* 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 kafka.admin
import java.io.PrintStream
import java.util.Properties
import kafka.utils.Json
import org.apache.kafka.clients.admin.{Admin, AdminClientConfig, LogDirDescription}
import org.apache.kafka.common.utils.Utils
import org.apache.kafka.server.util.{CommandDefaultOptions, CommandLineUtils}
import scala.jdk.CollectionConverters._
import scala.collection.Map
/**
* A command for querying log directory usage on the specified brokers
*/
object LogDirsCommand {
def main(args: Array[String]): Unit = {
describe(args, System.out)
}
def describe(args: Array[String], out: PrintStream): Unit = {
val opts = new LogDirsCommandOptions(args)
val adminClient = createAdminClient(opts)
try {
val topicList = opts.options.valueOf(opts.topicListOpt).split(",").filter(_.nonEmpty)
val clusterBrokers = adminClient.describeCluster().nodes().get().asScala.map(_.id()).toSet
val (existingBrokers, nonExistingBrokers) = Option(opts.options.valueOf(opts.brokerListOpt)) match {
case Some(brokerListStr) =>
val inputBrokers = brokerListStr.split(',').filter(_.nonEmpty).map(_.toInt).toSet
(inputBrokers.intersect(clusterBrokers), inputBrokers.diff(clusterBrokers))
case None => (clusterBrokers, Set.empty)
}
if (nonExistingBrokers.nonEmpty) {
out.println(s"ERROR: The given brokers do not exist from --broker-list: ${nonExistingBrokers.mkString(",")}." +
s" Current existent brokers: ${clusterBrokers.mkString(",")}")
} else {
out.println("Querying brokers for log directories information")
val describeLogDirsResult = adminClient.describeLogDirs(existingBrokers.map(Integer.valueOf).toSeq.asJava)
val logDirInfosByBroker = describeLogDirsResult.allDescriptions.get().asScala.map { case (k, v) => k -> v.asScala }
out.println(s"Received log directory information from brokers ${existingBrokers.mkString(",")}")
out.println(formatAsJson(logDirInfosByBroker, topicList.toSet))
}
} finally {
adminClient.close()
}
}
private def formatAsJson(logDirInfosByBroker: Map[Integer, Map[String, LogDirDescription]], topicSet: Set[String]): String = {
Json.encodeAsString(Map(
"version" -> 1,
"brokers" -> logDirInfosByBroker.map { case (broker, logDirInfos) =>
Map(
"broker" -> broker,
"logDirs" -> logDirInfos.map { case (logDir, logDirInfo) =>
Map(
"logDir" -> logDir,
"error" -> Option(logDirInfo.error).map(ex => ex.getClass.getName).orNull,
"partitions" -> logDirInfo.replicaInfos.asScala.filter { case (topicPartition, _) =>
topicSet.isEmpty || topicSet.contains(topicPartition.topic)
}.map { case (topicPartition, replicaInfo) =>
Map(
"partition" -> topicPartition.toString,
"size" -> replicaInfo.size,
"offsetLag" -> replicaInfo.offsetLag,
"isFuture" -> replicaInfo.isFuture
).asJava
}.asJava
).asJava
}.asJava
).asJava
}.asJava
).asJava)
}
private def createAdminClient(opts: LogDirsCommandOptions): Admin = {
val props = if (opts.options.has(opts.commandConfigOpt))
Utils.loadProps(opts.options.valueOf(opts.commandConfigOpt))
else
new Properties()
props.put(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, opts.options.valueOf(opts.bootstrapServerOpt))
props.putIfAbsent(AdminClientConfig.CLIENT_ID_CONFIG, "log-dirs-tool")
Admin.create(props)
}
class LogDirsCommandOptions(args: Array[String]) extends CommandDefaultOptions(args){
val bootstrapServerOpt = parser.accepts("bootstrap-server", "REQUIRED: the server(s) to use for bootstrapping")
.withRequiredArg
.describedAs("The server(s) to use for bootstrapping")
.ofType(classOf[String])
val commandConfigOpt = parser.accepts("command-config", "Property file containing configs to be passed to Admin Client.")
.withRequiredArg
.describedAs("Admin client property file")
.ofType(classOf[String])
val describeOpt = parser.accepts("describe", "Describe the specified log directories on the specified brokers.")
val topicListOpt = parser.accepts("topic-list", "The list of topics to be queried in the form \"topic1,topic2,topic3\". " +
"All topics will be queried if no topic list is specified")
.withRequiredArg
.describedAs("Topic list")
.defaultsTo("")
.ofType(classOf[String])
val brokerListOpt = parser.accepts("broker-list", "The list of brokers to be queried in the form \"0,1,2\". " +
"All brokers in the cluster will be queried if no broker list is specified")
.withRequiredArg
.describedAs("Broker list")
.ofType(classOf[String])
options = parser.parse(args : _*)
CommandLineUtils.maybePrintHelpOrVersion(this, "This tool helps to query log directory usage on the specified brokers.")
CommandLineUtils.checkRequiredArgs(parser, options, bootstrapServerOpt, describeOpt)
}
}

76
core/src/test/scala/unit/kafka/admin/LogDirsCommandTest.scala
View File

@ -1,76 +0,0 @@
/**
* 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 kafka.admin
import java.io.{ByteArrayOutputStream, PrintStream}
import java.nio.charset.StandardCharsets
import kafka.integration.KafkaServerTestHarness
import kafka.server.KafkaConfig
import kafka.utils.TestUtils
import org.junit.jupiter.api.Assertions.assertTrue
import org.junit.jupiter.api.Test
import scala.collection.Seq
class LogDirsCommandTest extends KafkaServerTestHarness {
def generateConfigs: Seq[KafkaConfig] = {
TestUtils.createBrokerConfigs(1, zkConnect)
.map(KafkaConfig.fromProps)
}
@Test
def checkLogDirsCommandOutput(): Unit = {
val byteArrayOutputStream = new ByteArrayOutputStream
val printStream = new PrintStream(byteArrayOutputStream, false, StandardCharsets.UTF_8.name())
//input exist brokerList
LogDirsCommand.describe(Array("--bootstrap-server", bootstrapServers(), "--broker-list", "0", "--describe"), printStream)
val existingBrokersContent = new String(byteArrayOutputStream.toByteArray, StandardCharsets.UTF_8)
val existingBrokersLineIter = existingBrokersContent.split("\n").iterator
assertTrue(existingBrokersLineIter.hasNext)
assertTrue(existingBrokersLineIter.next().contains(s"Querying brokers for log directories information"))
//input nonexistent brokerList
byteArrayOutputStream.reset()
LogDirsCommand.describe(Array("--bootstrap-server", bootstrapServers(), "--broker-list", "0,1,2", "--describe"), printStream)
val nonExistingBrokersContent = new String(byteArrayOutputStream.toByteArray, StandardCharsets.UTF_8)
val nonExistingBrokersLineIter = nonExistingBrokersContent.split("\n").iterator
assertTrue(nonExistingBrokersLineIter.hasNext)
assertTrue(nonExistingBrokersLineIter.next().contains(s"ERROR: The given brokers do not exist from --broker-list: 1,2. Current existent brokers: 0"))
//input duplicate ids
byteArrayOutputStream.reset()
LogDirsCommand.describe(Array("--bootstrap-server", bootstrapServers(), "--broker-list", "0,0,1,2,2", "--describe"), printStream)
val duplicateBrokersContent = new String(byteArrayOutputStream.toByteArray, StandardCharsets.UTF_8)
val duplicateBrokersLineIter = duplicateBrokersContent.split("\n").iterator
assertTrue(duplicateBrokersLineIter.hasNext)
assertTrue(duplicateBrokersLineIter.next().contains(s"ERROR: The given brokers do not exist from --broker-list: 1,2. Current existent brokers: 0"))
//use all brokerList for current cluster
byteArrayOutputStream.reset()
LogDirsCommand.describe(Array("--bootstrap-server", bootstrapServers(), "--describe"), printStream)
val allBrokersContent = new String(byteArrayOutputStream.toByteArray, StandardCharsets.UTF_8)
val allBrokersLineIter = allBrokersContent.split("\n").iterator
assertTrue(allBrokersLineIter.hasNext)
assertTrue(allBrokersLineIter.next().contains(s"Querying brokers for log directories information"))
}
}

220
tools/src/main/java/org/apache/kafka/tools/LogDirsCommand.java Normal file
View File

@ -0,0 +1,220 @@
/*
* 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.kafka.tools;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import joptsimple.OptionSpec;
import joptsimple.OptionSpecBuilder;
import org.apache.kafka.clients.admin.Admin;
import org.apache.kafka.clients.admin.AdminClientConfig;
import org.apache.kafka.clients.admin.DescribeLogDirsResult;
import org.apache.kafka.clients.admin.LogDirDescription;
import org.apache.kafka.clients.admin.ReplicaInfo;
import org.apache.kafka.common.Node;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.common.utils.Exit;
import org.apache.kafka.common.utils.Utils;
import org.apache.kafka.server.util.CommandDefaultOptions;
import org.apache.kafka.server.util.CommandLineUtils;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class LogDirsCommand {
public static void main(String... args) {
Exit.exit(mainNoExit(args));
}
static int mainNoExit(String... args) {
try {
execute(args);
return 0;
} catch (TerseException e) {
System.err.println(e.getMessage());
return 1;
} catch (Throwable e) {
System.err.println(e.getMessage());
System.err.println(Utils.stackTrace(e));
return 1;
}
}
private static void execute(String... args) throws Exception {
LogDirsCommandOptions options = new LogDirsCommandOptions(args);
try (Admin adminClient = createAdminClient(options)) {
execute(options, adminClient);
}
}
static void execute(LogDirsCommandOptions options, Admin adminClient) throws Exception {
Set<String> topics = options.topics();
Set<Integer> clusterBrokers = adminClient.describeCluster().nodes().get().stream().map(Node::id).collect(Collectors.toSet());
Set<Integer> inputBrokers = options.brokers();
Set<Integer> existingBrokers = inputBrokers.isEmpty() ? new HashSet<>(clusterBrokers) : new HashSet<>(inputBrokers);
existingBrokers.retainAll(clusterBrokers);
Set<Integer> nonExistingBrokers = new HashSet<>(inputBrokers);
nonExistingBrokers.removeAll(clusterBrokers);
if (!nonExistingBrokers.isEmpty()) {
throw new TerseException(
String.format(
"ERROR: The given brokers do not exist from --broker-list: %s. Current existent brokers: %s",
commaDelimitedStringFromIntegerSet(nonExistingBrokers),
commaDelimitedStringFromIntegerSet(clusterBrokers)));
} else {
System.out.println("Querying brokers for log directories information");
DescribeLogDirsResult describeLogDirsResult = adminClient.describeLogDirs(existingBrokers);
Map<Integer, Map<String, LogDirDescription>> logDirInfosByBroker = describeLogDirsResult.allDescriptions().get();
System.out.printf(
"Received log directory information from brokers %s%n",
commaDelimitedStringFromIntegerSet(existingBrokers));
System.out.println(formatAsJson(logDirInfosByBroker, topics));
}
}
private static String commaDelimitedStringFromIntegerSet(Set<Integer> set) {
return set.stream().map(String::valueOf).collect(Collectors.joining(","));
}
private static List<Map<String, Object>> fromReplicasInfoToPrintableRepresentation(Map<TopicPartition, ReplicaInfo> replicasInfo) {
return replicasInfo.entrySet().stream().map(entry -> {
TopicPartition topicPartition = entry.getKey();
return new HashMap<String, Object>() {{
put("partition", topicPartition.toString());
put("size", entry.getValue().size());
put("offsetLag", entry.getValue().offsetLag());
put("isFuture", entry.getValue().isFuture());
}};
}).collect(Collectors.toList());
}
private static List<Map<String, Object>> fromLogDirInfosToPrintableRepresentation(Map<String, LogDirDescription> logDirInfos, Set<String> topicSet) {
return logDirInfos.entrySet().stream().map(entry -> {
String logDir = entry.getKey();
return new HashMap<String, Object>() {{
put("logDir", logDir);
put("error", entry.getValue().error() != null ? entry.getValue().error().getClass().getName() : null);
put("partitions", fromReplicasInfoToPrintableRepresentation(
entry.getValue().replicaInfos().entrySet().stream().filter(entry -> {
TopicPartition topicPartition = entry.getKey();
return topicSet.isEmpty() || topicSet.contains(topicPartition.topic());
}).collect(Collectors.toMap(Entry::getKey, Entry::getValue))
));
}};
}).collect(Collectors.toList());
}
private static String formatAsJson(Map<Integer, Map<String, LogDirDescription>> logDirInfosByBroker, Set<String> topicSet) throws JsonProcessingException {
return new ObjectMapper().writeValueAsString(new HashMap<String, Object>() {{
put("version", 1);
put("brokers", logDirInfosByBroker.entrySet().stream().map(entry -> {
int broker = entry.getKey();
Map<String, LogDirDescription> logDirInfos = entry.getValue();
return new HashMap<String, Object>() {{
put("broker", broker);
put("logDirs", fromLogDirInfosToPrintableRepresentation(logDirInfos, topicSet));
}};
}).collect(Collectors.toList()));
}});
}
private static Admin createAdminClient(LogDirsCommandOptions options) throws IOException {
Properties props = new Properties();
if (options.hasCommandConfig()) {
props.putAll(Utils.loadProps(options.commandConfig()));
}
props.put(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, options.bootstrapServers());
props.putIfAbsent(AdminClientConfig.CLIENT_ID_CONFIG, "log-dirs-tool");
return Admin.create(props);
}
// Visible for testing
static class LogDirsCommandOptions extends CommandDefaultOptions {
private final OptionSpec<String> bootstrapServerOpt;
private final OptionSpec<String> commandConfigOpt;
private final OptionSpecBuilder describeOpt;
private final OptionSpec<String> topicListOpt;
private final OptionSpec<String> brokerListOpt;
public LogDirsCommandOptions(String... args) {
super(args);
bootstrapServerOpt = parser.accepts("bootstrap-server", "REQUIRED: the server(s) to use for bootstrapping")
.withRequiredArg()
.describedAs("The server(s) to use for bootstrapping")
.ofType(String.class);
commandConfigOpt = parser.accepts("command-config", "Property file containing configs to be passed to Admin Client.")
.withRequiredArg()
.describedAs("Admin client property file")
.ofType(String.class);
describeOpt = parser.accepts("describe", "Describe the specified log directories on the specified brokers.");
topicListOpt = parser.accepts("topic-list", "The list of topics to be queried in the form \"topic1,topic2,topic3\". " +
"All topics will be queried if no topic list is specified")
.withRequiredArg()
.describedAs("Topic list")
.defaultsTo("")
.ofType(String.class);
brokerListOpt = parser.accepts("broker-list", "The list of brokers to be queried in the form \"0,1,2\". " +
"All brokers in the cluster will be queried if no broker list is specified")
.withRequiredArg()
.describedAs("Broker list")
.ofType(String.class)
.defaultsTo("");
options = parser.parse(args);
CommandLineUtils.maybePrintHelpOrVersion(this, "This tool helps to query log directory usage on the specified brokers.");
CommandLineUtils.checkRequiredArgs(parser, options, bootstrapServerOpt, describeOpt);
}
private Stream<String> splitAtCommasAndFilterOutEmpty(OptionSpec<String> option) {
return Arrays.stream(options.valueOf(option).split(",")).filter(x -> !x.isEmpty());
}
private String bootstrapServers() {
return options.valueOf(bootstrapServerOpt);
}
private boolean hasCommandConfig() {
return options.has(commandConfigOpt);
}
private String commandConfig() {
return options.valueOf(commandConfigOpt);
}
private Set<String> topics() {
return splitAtCommasAndFilterOutEmpty(topicListOpt).collect(Collectors.toSet());
}
private Set<Integer> brokers() {
return splitAtCommasAndFilterOutEmpty(brokerListOpt).map(Integer::valueOf).collect(Collectors.toSet());
}
}
}

114
tools/src/test/java/org/apache/kafka/tools/LogDirsCommandTest.java Normal file
View File

@ -0,0 +1,114 @@
/*
* 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.kafka.tools;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.kafka.clients.admin.Admin;
import org.apache.kafka.clients.admin.MockAdminClient;
import org.apache.kafka.common.Node;
import org.junit.jupiter.api.Test;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class LogDirsCommandTest {
@Test
public void shouldThrowWhenQueryingNonExistentBrokers() {
Node broker = new Node(1, "hostname", 9092);
try (MockAdminClient adminClient = new MockAdminClient(Collections.singletonList(broker), broker)) {
assertThrows(RuntimeException.class, () -> execute(fromArgsToOptions("--bootstrap-server", "EMPTY", "--broker-list", "0,1,2", "--describe"), adminClient));
}
}
@Test
@SuppressWarnings("unchecked")
public void shouldNotThrowWhenDuplicatedBrokers() throws JsonProcessingException {
Node broker = new Node(1, "hostname", 9092);
try (MockAdminClient adminClient = new MockAdminClient(Collections.singletonList(broker), broker)) {
String standardOutput = execute(fromArgsToOptions("--bootstrap-server", "EMPTY", "--broker-list", "1,1", "--describe"), adminClient);
String[] standardOutputLines = standardOutput.split("\n");
assertEquals(3, standardOutputLines.length);
Map<String, Object> information = new ObjectMapper().readValue(standardOutputLines[2], HashMap.class);
List<Object> brokersInformation = (List<Object>) information.get("brokers");
Integer brokerId = (Integer) ((HashMap<String, Object>) brokersInformation.get(0)).get("broker");
assertEquals(1, brokersInformation.size());
assertEquals(1, brokerId);
}
}
@Test
@SuppressWarnings("unchecked")
public void shouldQueryAllBrokersIfNonSpecified() throws JsonProcessingException {
Node brokerOne = new Node(1, "hostname", 9092);
Node brokerTwo = new Node(2, "hostname", 9092);
try (MockAdminClient adminClient = new MockAdminClient(Arrays.asList(brokerTwo, brokerOne), brokerOne)) {
String standardOutput = execute(fromArgsToOptions("--bootstrap-server", "EMPTY", "--describe"), adminClient);
String[] standardOutputLines = standardOutput.split("\n");
assertEquals(3, standardOutputLines.length);
Map<String, Object> information = new ObjectMapper().readValue(standardOutputLines[2], HashMap.class);
List<Object> brokersInformation = (List<Object>) information.get("brokers");
Set<Integer> brokerIds = new HashSet<Integer>() {{
add((Integer) ((HashMap<String, Object>) brokersInformation.get(0)).get("broker"));
add((Integer) ((HashMap<String, Object>) brokersInformation.get(1)).get("broker"));
}};
assertEquals(2, brokersInformation.size());
assertEquals(new HashSet<>(Arrays.asList(2, 1)), brokerIds);
}
}
@Test
@SuppressWarnings("unchecked")
public void shouldQuerySpecifiedBroker() throws JsonProcessingException {
Node brokerOne = new Node(1, "hostname", 9092);
Node brokerTwo = new Node(2, "hostname", 9092);
try (MockAdminClient adminClient = new MockAdminClient(Arrays.asList(brokerOne, brokerTwo), brokerOne)) {
String standardOutput = execute(fromArgsToOptions("--bootstrap-server", "EMPTY", "--broker-list", "1", "--describe"), adminClient);
String[] standardOutputLines = standardOutput.split("\n");
assertEquals(3, standardOutputLines.length);
Map<String, Object> information = new ObjectMapper().readValue(standardOutputLines[2], HashMap.class);
List<Object> brokersInformation = (List<Object>) information.get("brokers");
Integer brokerId = (Integer) ((HashMap<String, Object>) brokersInformation.get(0)).get("broker");
assertEquals(1, brokersInformation.size());
assertEquals(1, brokerId);
}
}
private LogDirsCommand.LogDirsCommandOptions fromArgsToOptions(String... args) {
return new LogDirsCommand.LogDirsCommandOptions(args);
}
private String execute(LogDirsCommand.LogDirsCommandOptions options, Admin adminClient) {
Runnable runnable = () -> {
try {
LogDirsCommand.execute(options, adminClient);
} catch (Exception e) {
throw new RuntimeException(e);
}
};
return ToolsTestUtils.captureStandardOut(runnable);
}
}