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[fix] [broker] response not-found error if topic does not exist when …
…calling getPartitionedTopicMetadata (apache#22838) (cherry picked from commit 9aed736) (cherry picked from commit 1d2959b)
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pulsar-broker/src/main/java/org/apache/pulsar/broker/namespace/TopicExistsInfo.java
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| @@ -0,0 +1,82 @@ | ||
| /* | ||
| * 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.pulsar.broker.namespace; | ||
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| import io.netty.util.Recycler; | ||
| import lombok.Getter; | ||
| import org.apache.pulsar.common.policies.data.TopicType; | ||
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| public class TopicExistsInfo { | ||
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| private static final Recycler<TopicExistsInfo> RECYCLER = new Recycler<>() { | ||
| @Override | ||
| protected TopicExistsInfo newObject(Handle<TopicExistsInfo> handle) { | ||
| return new TopicExistsInfo(handle); | ||
| } | ||
| }; | ||
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| private static TopicExistsInfo nonPartitionedExists = new TopicExistsInfo(true, 0); | ||
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| private static TopicExistsInfo notExists = new TopicExistsInfo(false, 0); | ||
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| public static TopicExistsInfo newPartitionedTopicExists(Integer partitions){ | ||
| TopicExistsInfo info = RECYCLER.get(); | ||
| info.exists = true; | ||
| info.partitions = partitions.intValue(); | ||
| return info; | ||
| } | ||
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| public static TopicExistsInfo newNonPartitionedTopicExists(){ | ||
| return nonPartitionedExists; | ||
| } | ||
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| public static TopicExistsInfo newTopicNotExists(){ | ||
| return notExists; | ||
| } | ||
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| private final Recycler.Handle<TopicExistsInfo> handle; | ||
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| @Getter | ||
| private int partitions; | ||
| @Getter | ||
| private boolean exists; | ||
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| private TopicExistsInfo(Recycler.Handle<TopicExistsInfo> handle) { | ||
| this.handle = handle; | ||
| } | ||
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| private TopicExistsInfo(boolean exists, int partitions) { | ||
| this.handle = null; | ||
| this.partitions = partitions; | ||
| this.exists = exists; | ||
| } | ||
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| public void recycle() { | ||
| if (this == notExists || this == nonPartitionedExists || this.handle == null) { | ||
| return; | ||
| } | ||
| this.exists = false; | ||
| this.partitions = 0; | ||
| this.handle.recycle(this); | ||
| } | ||
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| public TopicType getTopicType() { | ||
| return this.partitions > 0 ? TopicType.PARTITIONED : TopicType.NON_PARTITIONED; | ||
| } | ||
| } |
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