[GitHub] [inlong] woofyzhao commented on a diff in pull request #5389: [INLONG-4976][Manager] The Manager module supports the use of Kafka

[GitBox <gi...@apache.org>]

woofyzhao commented on code in PR #5389:
URL: https://github.com/apache/inlong/pull/5389#discussion_r960159516


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inlong-manager/manager-service/src/main/java/org/apache/inlong/manager/service/resource/queue/kafka/KafkaOperator.java:
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@@ -0,0 +1,102 @@
+/*
+ * 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.inlong.manager.service.resource.queue.kafka;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ExecutionException;
+
+import org.apache.inlong.manager.pojo.cluster.kafka.KafkaClusterInfo;
+import org.apache.inlong.manager.service.cluster.InlongClusterServiceImpl;
+import org.apache.kafka.clients.admin.AdminClient;
+import org.apache.kafka.clients.admin.CreateTopicsResult;
+import org.apache.kafka.clients.admin.DeleteTopicsResult;
+import org.apache.kafka.clients.admin.NewTopic;
+import org.apache.kafka.clients.consumer.KafkaConsumer;
+import org.apache.kafka.common.PartitionInfo;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+
+/**
+ * kafka operator, supports creating topics and creating subscription.
+ */
+@Service
+public class KafkaOperator {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(InlongClusterServiceImpl.class);
+
+    /**
+     * Create Kafka topic
+     */
+    public void createTopic(KafkaClusterInfo kafkaClusterInfo, String topicName)
+            throws InterruptedException, ExecutionException {
+        AdminClient adminClient = KafkaUtils.getAdminClient(kafkaClusterInfo);
+        NewTopic topic = new NewTopic(topicName,
+                kafkaClusterInfo.getNumPartitions(),
+                kafkaClusterInfo.getReplicationFactor());
+        CreateTopicsResult result = adminClient.createTopics(Collections.singletonList(topic));
+        // To prevent the client from disconnecting too quickly and causing the Topic to not be created successfully
+        Thread.sleep(500);
+        LOGGER.info("success to create kafka topic={}, with={} numPartitions",
+                topicName,
+                result.numPartitions(topicName).get());
+    }
+
+    /**
+     * Force delete Kafka topic
+     */
+    public void forceDeleteTopic(KafkaClusterInfo kafkaClusterInfo, String topicName) {
+        AdminClient adminClient = KafkaUtils.getAdminClient(kafkaClusterInfo);
+        DeleteTopicsResult result = adminClient.deleteTopics(Collections.singletonList(topicName));
+        LOGGER.info("success to delete topic={}", topicName);
+    }
+
+    public boolean topicIsExists(KafkaClusterInfo kafkaClusterInfo, String topic)
+            throws ExecutionException, InterruptedException {
+        AdminClient adminClient = KafkaUtils.getAdminClient(kafkaClusterInfo);
+        Set<String> topicList = adminClient.listTopics().names().get();
+        return topicList.contains(topic);
+    }
+
+    public void createSubscription(KafkaClusterInfo kafkaClusterInfo, String subscription) {
+

Review Comment:
   abundant blank line



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