forked from apache/flink
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[FLINK-3102] Allow reading from multiple topics with one FlinkKafkaCo…
…nsumer instance This closes apache#1437
- Loading branch information
Showing
24 changed files
with
822 additions
and
517 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
266 changes: 127 additions & 139 deletions
266
...r-kafka/src/main/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaConsumer.java
Large diffs are not rendered by default.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
36 changes: 0 additions & 36 deletions
36
...nector-kafka/src/main/java/org/apache/flink/streaming/connectors/kafka/api/KafkaSink.java
This file was deleted.
Oops, something went wrong.
57 changes: 0 additions & 57 deletions
57
...ava/org/apache/flink/streaming/connectors/kafka/api/persistent/PersistentKafkaSource.java
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
124 changes: 124 additions & 0 deletions
124
.../main/java/org/apache/flink/streaming/connectors/kafka/internals/KafkaTopicPartition.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| /* | ||
| * 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:https://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.flink.streaming.connectors.kafka.internals; | ||
|
|
||
| import java.io.Serializable; | ||
| import java.util.ArrayList; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
|
||
| import static com.google.common.base.Preconditions.checkNotNull; | ||
|
|
||
| /** | ||
| * A serializable representation of a kafka topic and a partition. | ||
| * Used as an operator state for the Kafka consumer | ||
| */ | ||
| public class KafkaTopicPartition implements Serializable { | ||
|
|
||
| private static final long serialVersionUID = 722083576322742325L; | ||
|
|
||
| private final String topic; | ||
| private final int partition; | ||
| private final int cachedHash; | ||
|
|
||
| public KafkaTopicPartition(String topic, int partition) { | ||
| this.topic = checkNotNull(topic); | ||
| this.partition = partition; | ||
| this.cachedHash = 31 * topic.hashCode() + partition; | ||
| } | ||
|
|
||
| public String getTopic() { | ||
| return topic; | ||
| } | ||
|
|
||
| public int getPartition() { | ||
| return partition; | ||
| } | ||
|
|
||
| @Override | ||
| public String toString() { | ||
| return "KafkaTopicPartition{" + | ||
| "topic='" + topic + '\'' + | ||
| ", partition=" + partition + | ||
| '}'; | ||
| } | ||
|
|
||
| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) { | ||
| return true; | ||
| } | ||
| if (!(o instanceof KafkaTopicPartition)) { | ||
| return false; | ||
| } | ||
|
|
||
| KafkaTopicPartition that = (KafkaTopicPartition) o; | ||
|
|
||
| if (partition != that.partition) { | ||
| return false; | ||
| } | ||
| return topic.equals(that.topic); | ||
| } | ||
|
|
||
| @Override | ||
| public int hashCode() { | ||
| return cachedHash; | ||
| } | ||
|
|
||
|
|
||
| // ------------------- Utilities ------------------------------------- | ||
|
|
||
| /** | ||
| * Returns a unique list of topics from the topic partition map | ||
| * | ||
| * @param topicPartitionMap A map of KafkaTopicPartition's | ||
| * @return A unique list of topics from the input map | ||
| */ | ||
| public static List<String> getTopics(Map<KafkaTopicPartition, ?> topicPartitionMap) { | ||
| HashSet<String> uniqueTopics = new HashSet<>(); | ||
| for (KafkaTopicPartition ktp: topicPartitionMap.keySet()) { | ||
| uniqueTopics.add(ktp.getTopic()); | ||
| } | ||
| return new ArrayList<>(uniqueTopics); | ||
| } | ||
|
|
||
| public static String toString(Map<KafkaTopicPartition, Long> map) { | ||
| StringBuilder sb = new StringBuilder(); | ||
| for (Map.Entry<KafkaTopicPartition, Long> p: map.entrySet()) { | ||
| KafkaTopicPartition ktp = p.getKey(); | ||
| sb.append(ktp.getTopic()).append(":").append(ktp.getPartition()).append("=").append(p.getValue()).append(", "); | ||
| } | ||
| return sb.toString(); | ||
| } | ||
|
|
||
| /** | ||
| * Checks whether this partition is contained in the map with KafkaTopicPartitionLeaders | ||
| * | ||
| * @param map The map of KafkaTopicPartitionLeaders | ||
| * @return true if the element is contained. | ||
| */ | ||
| public boolean isContained(Map<KafkaTopicPartitionLeader, ?> map) { | ||
| for(Map.Entry<KafkaTopicPartitionLeader, ?> entry : map.entrySet()) { | ||
| if(entry.getKey().getTopicPartition().equals(this)) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
| } |
Oops, something went wrong.