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Speed up resolved function to/from qualified name resolution
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145 changes: 145 additions & 0 deletions
145
core/trino-main/src/main/java/io/trino/util/ThreadSafeCompressorDecompressor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| /* | ||
| * 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.util; | ||
|
|
||
| import io.airlift.compress.Compressor; | ||
| import io.airlift.compress.Decompressor; | ||
| import io.airlift.compress.MalformedInputException; | ||
| import org.apache.commons.pool2.DestroyMode; | ||
| import org.apache.commons.pool2.ObjectPool; | ||
| import org.apache.commons.pool2.PooledObject; | ||
| import org.apache.commons.pool2.PooledObjectFactory; | ||
| import org.apache.commons.pool2.impl.DefaultPooledObject; | ||
| import org.apache.commons.pool2.impl.SoftReferenceObjectPool; | ||
|
|
||
| import java.nio.ByteBuffer; | ||
| import java.util.function.Function; | ||
| import java.util.function.Supplier; | ||
|
|
||
| import static java.util.Objects.requireNonNull; | ||
|
|
||
| public class ThreadSafeCompressorDecompressor | ||
| implements Compressor, Decompressor | ||
| { | ||
| private final SoftReferenceObjectPool<Compressor> compressors; | ||
| private final SoftReferenceObjectPool<Decompressor> decompressors; | ||
|
|
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| public ThreadSafeCompressorDecompressor(Supplier<Compressor> compressorFactory, Supplier<Decompressor> decompressorFactory) | ||
| { | ||
| this.compressors = new SoftReferenceObjectPool<>(new CompressorObjectFactory<>(requireNonNull(compressorFactory, "compressorFactory is null"))); | ||
| this.decompressors = new SoftReferenceObjectPool<>(new CompressorObjectFactory<>(requireNonNull(decompressorFactory, "decompressorFactory is null"))); | ||
| } | ||
|
|
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| @Override | ||
| public int maxCompressedLength(int uncompressedSize) | ||
| { | ||
| return with(compressors, compressor -> compressor.maxCompressedLength(uncompressedSize)); | ||
| } | ||
|
|
||
| @Override | ||
| public int compress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset, int maxOutputLength) | ||
| { | ||
| return with(compressors, compressor -> compressor.compress(input, inputOffset, inputLength, output, outputOffset, maxOutputLength)); | ||
| } | ||
|
|
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| @Override | ||
| public void compress(ByteBuffer input, ByteBuffer output) | ||
| { | ||
| with(compressors, compressor -> { | ||
| compressor.compress(input, output); | ||
| return true; | ||
| }); | ||
| } | ||
|
|
||
| @Override | ||
| public int decompress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset, int maxOutputLength) throws MalformedInputException | ||
| { | ||
| return with(decompressors, decompressor -> decompressor.decompress(input, inputOffset, inputLength, output, outputOffset, maxOutputLength)); | ||
| } | ||
|
|
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| @Override | ||
| public void decompress(ByteBuffer input, ByteBuffer output) throws MalformedInputException | ||
| { | ||
| with(decompressors, decompressor -> | ||
| { | ||
| decompressor.decompress(input, output); | ||
| return true; | ||
| }); | ||
| } | ||
|
|
||
| private <T, U> T with(ObjectPool<U> pool, Function<U, T> call) | ||
| { | ||
| U delegate = null; | ||
| try { | ||
| delegate = pool.borrowObject(); | ||
| return call.apply(delegate); | ||
| } | ||
| catch (Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| finally { | ||
| if (delegate != null) { | ||
| try { | ||
| pool.returnObject(delegate); | ||
| } | ||
| catch (Exception ignored) { | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| private static class CompressorObjectFactory<T> | ||
| implements PooledObjectFactory<T> | ||
| { | ||
| private final Supplier<T> delegate; | ||
|
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| CompressorObjectFactory(Supplier<T> delegate) | ||
| { | ||
| this.delegate = requireNonNull(delegate, "delegate is null"); | ||
| } | ||
|
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| @Override | ||
| public void activateObject(PooledObject<T> pooledObject) | ||
| { | ||
| } | ||
|
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| @Override | ||
| public void destroyObject(PooledObject<T> pooledObject) | ||
| { | ||
| } | ||
|
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| @Override | ||
| public void destroyObject(PooledObject<T> pooledObject, DestroyMode destroyMode) | ||
| { | ||
| destroyObject(pooledObject); | ||
| } | ||
|
|
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| @Override | ||
| public PooledObject<T> makeObject() | ||
| { | ||
| return new DefaultPooledObject<>(delegate.get()); | ||
| } | ||
|
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| @Override | ||
| public void passivateObject(PooledObject<T> pooledObject) | ||
| { | ||
| } | ||
|
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| @Override | ||
| public boolean validateObject(PooledObject<T> pooledObject) | ||
| { | ||
| return true; | ||
| } | ||
| } | ||
| } |
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