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Merge pull request apache#2220 from gianm/appenderator-kafka
Appenderators, DataSource metadata, KafkaIndexTask
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <!-- | ||
| ~ Licensed to Metamarkets Group Inc. (Metamarkets) under one | ||
| ~ or more contributor license agreements. See the NOTICE file | ||
| ~ distributed with this work for additional information | ||
| ~ regarding copyright ownership. Metamarkets 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. | ||
| --> | ||
|
|
||
| <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
|
|
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| <groupId>io.druid.extensions</groupId> | ||
| <artifactId>druid-kafka-indexing-service</artifactId> | ||
| <name>druid-kafka-indexing-service</name> | ||
| <description>druid-kafka-indexing-service</description> | ||
|
|
||
| <parent> | ||
| <groupId>io.druid</groupId> | ||
| <artifactId>druid</artifactId> | ||
| <version>0.9.0-SNAPSHOT</version> | ||
| <relativePath>../../pom.xml</relativePath> | ||
| </parent> | ||
|
|
||
| <dependencies> | ||
| <dependency> | ||
| <groupId>io.druid</groupId> | ||
| <artifactId>druid-api</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>io.druid</groupId> | ||
| <artifactId>druid-indexing-service</artifactId> | ||
| <version>0.9.0-SNAPSHOT</version> | ||
| <scope>provided</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.apache.kafka</groupId> | ||
| <artifactId>kafka-clients</artifactId> | ||
| <version>0.9.0.0</version> | ||
| </dependency> | ||
|
|
||
| <!-- Tests --> | ||
| <dependency> | ||
| <groupId>junit</groupId> | ||
| <artifactId>junit</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.apache.kafka</groupId> | ||
| <artifactId>kafka_2.11</artifactId> | ||
| <version>0.9.0.0</version> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>io.druid</groupId> | ||
| <artifactId>druid-server</artifactId> | ||
| <version>0.9.0-SNAPSHOT</version> | ||
| <type>test-jar</type> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>io.druid</groupId> | ||
| <artifactId>druid-indexing-service</artifactId> | ||
| <version>0.9.0-SNAPSHOT</version> | ||
| <type>test-jar</type> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.apache.curator</groupId> | ||
| <artifactId>curator-test</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.easymock</groupId> | ||
| <artifactId>easymock</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| </dependencies> | ||
|
|
||
| </project> |
123 changes: 123 additions & 0 deletions
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...kafka-indexing-service/src/main/java/io/druid/indexing/kafka/KafkaDataSourceMetadata.java
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| @@ -0,0 +1,123 @@ | ||
| /* | ||
| * Licensed to Metamarkets Group Inc. (Metamarkets) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. Metamarkets 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. | ||
| */ | ||
|
|
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| package io.druid.indexing.kafka; | ||
|
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| import com.fasterxml.jackson.annotation.JsonCreator; | ||
| import com.fasterxml.jackson.annotation.JsonProperty; | ||
| import com.google.common.collect.Maps; | ||
| import com.metamx.common.IAE; | ||
| import io.druid.indexing.overlord.DataSourceMetadata; | ||
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| import java.util.Map; | ||
| import java.util.Objects; | ||
|
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| public class KafkaDataSourceMetadata implements DataSourceMetadata | ||
| { | ||
| private final KafkaPartitions kafkaPartitions; | ||
|
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| @JsonCreator | ||
| public KafkaDataSourceMetadata( | ||
| @JsonProperty("partitions") KafkaPartitions kafkaPartitions | ||
| ) | ||
| { | ||
| this.kafkaPartitions = kafkaPartitions; | ||
| } | ||
|
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| @JsonProperty("partitions") | ||
| public KafkaPartitions getKafkaPartitions() | ||
| { | ||
| return kafkaPartitions; | ||
| } | ||
|
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| @Override | ||
| public boolean isValidStart() | ||
| { | ||
| return true; | ||
| } | ||
|
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| @Override | ||
| public boolean matches(DataSourceMetadata other) | ||
| { | ||
| if (getClass() != other.getClass()) { | ||
| return false; | ||
| } | ||
|
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| return plus(other).equals(other.plus(this)); | ||
| } | ||
|
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| @Override | ||
| public DataSourceMetadata plus(DataSourceMetadata other) | ||
| { | ||
| if (!(other instanceof KafkaDataSourceMetadata)) { | ||
| throw new IAE( | ||
| "Expected instance of %s, got %s", | ||
| KafkaDataSourceMetadata.class.getCanonicalName(), | ||
| other.getClass().getCanonicalName() | ||
| ); | ||
| } | ||
|
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| final KafkaDataSourceMetadata that = (KafkaDataSourceMetadata) other; | ||
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| if (that.getKafkaPartitions().getTopic().equals(kafkaPartitions.getTopic())) { | ||
| // Same topic, merge offsets. | ||
| final Map<Integer, Long> newMap = Maps.newHashMap(); | ||
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| for (Map.Entry<Integer, Long> entry : kafkaPartitions.getPartitionOffsetMap().entrySet()) { | ||
| newMap.put(entry.getKey(), entry.getValue()); | ||
| } | ||
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| for (Map.Entry<Integer, Long> entry : that.getKafkaPartitions().getPartitionOffsetMap().entrySet()) { | ||
| newMap.put(entry.getKey(), entry.getValue()); | ||
| } | ||
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| return new KafkaDataSourceMetadata(new KafkaPartitions(kafkaPartitions.getTopic(), newMap)); | ||
| } else { | ||
| // Different topic, prefer "other". | ||
| return other; | ||
| } | ||
| } | ||
|
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| @Override | ||
| public boolean equals(Object o) | ||
| { | ||
| if (this == o) { | ||
| return true; | ||
| } | ||
| if (o == null || getClass() != o.getClass()) { | ||
| return false; | ||
| } | ||
| KafkaDataSourceMetadata that = (KafkaDataSourceMetadata) o; | ||
| return Objects.equals(kafkaPartitions, that.kafkaPartitions); | ||
| } | ||
|
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| @Override | ||
| public int hashCode() | ||
| { | ||
| return Objects.hash(kafkaPartitions); | ||
| } | ||
|
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| @Override | ||
| public String toString() | ||
| { | ||
| return "KafkaDataSourceMetadata{" + | ||
| "kafkaPartitions=" + kafkaPartitions + | ||
| '}'; | ||
| } | ||
| } |
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