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Use shared cache for per transaction file listing cache
This allows to cap cache size independently of query concurrency.
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72 changes: 72 additions & 0 deletions
72
...trino-hive/src/main/java/io/trino/plugin/hive/fs/TransactionDirectoryListingCacheKey.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /* | ||
| * Licensed 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 io.trino.plugin.hive.fs; | ||
|
|
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| import java.util.Objects; | ||
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| import static com.google.common.base.MoreObjects.toStringHelper; | ||
| import static io.airlift.slice.SizeOf.instanceSize; | ||
| import static java.util.Objects.requireNonNull; | ||
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| public class TransactionDirectoryListingCacheKey | ||
| { | ||
| private static final long INSTANCE_SIZE = instanceSize(TransactionDirectoryListingCacheKey.class); | ||
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| private final long transactionId; | ||
| private final DirectoryListingCacheKey key; | ||
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| public TransactionDirectoryListingCacheKey(long transactionId, DirectoryListingCacheKey key) | ||
| { | ||
| this.transactionId = transactionId; | ||
| this.key = requireNonNull(key, "key is null"); | ||
| } | ||
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| public DirectoryListingCacheKey getKey() | ||
| { | ||
| return key; | ||
| } | ||
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| public long getRetainedSizeInBytes() | ||
| { | ||
| return INSTANCE_SIZE + key.getRetainedSizeInBytes(); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) | ||
| { | ||
| if (this == o) { | ||
| return true; | ||
| } | ||
| if (o == null || getClass() != o.getClass()) { | ||
| return false; | ||
| } | ||
| TransactionDirectoryListingCacheKey that = (TransactionDirectoryListingCacheKey) o; | ||
| return transactionId == that.transactionId && key.equals(that.key); | ||
| } | ||
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| @Override | ||
| public int hashCode() | ||
| { | ||
| return Objects.hash(transactionId, key); | ||
| } | ||
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| @Override | ||
| public String toString() | ||
| { | ||
| return toStringHelper(this) | ||
| .add("transactionId", transactionId) | ||
| .add("key", key) | ||
| .toString(); | ||
| } | ||
| } |
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