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modules/cache-common/src/test/java/org/opensearch/cache/common/tier/MockDiskCache.java
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| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.cache.common.tier; | ||
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| import org.opensearch.common.cache.CacheType; | ||
| import org.opensearch.common.cache.ICache; | ||
| import org.opensearch.common.cache.LoadAwareCacheLoader; | ||
| import org.opensearch.common.cache.store.builders.ICacheBuilder; | ||
| import org.opensearch.common.cache.store.config.CacheConfig; | ||
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| import java.util.Map; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
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| public class MockDiskCache<K, V> implements ICache<K, V> { | ||
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| Map<K, V> cache; | ||
| int maxSize; | ||
| long delay; | ||
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| public MockDiskCache(int maxSize, long delay) { | ||
| this.maxSize = maxSize; | ||
| this.delay = delay; | ||
| this.cache = new ConcurrentHashMap<K, V>(); | ||
| } | ||
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| @Override | ||
| public V get(K key) { | ||
| V value = cache.get(key); | ||
| return value; | ||
| } | ||
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| @Override | ||
| public void put(K key, V value) { | ||
| if (this.cache.size() >= maxSize) { // For simplification | ||
| return; | ||
| } | ||
| try { | ||
| Thread.sleep(delay); | ||
| } catch (InterruptedException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| this.cache.put(key, value); | ||
| } | ||
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| @Override | ||
| public V computeIfAbsent(K key, LoadAwareCacheLoader<K, V> loader) { | ||
| V value = cache.computeIfAbsent(key, key1 -> { | ||
| try { | ||
| return loader.load(key); | ||
| } catch (Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| }); | ||
| return value; | ||
| } | ||
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| @Override | ||
| public void invalidate(K key) { | ||
| this.cache.remove(key); | ||
| } | ||
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| @Override | ||
| public void invalidateAll() { | ||
| this.cache.clear(); | ||
| } | ||
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| @Override | ||
| public Iterable<K> keys() { | ||
| return this.cache.keySet(); | ||
| } | ||
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| @Override | ||
| public long count() { | ||
| return this.cache.size(); | ||
| } | ||
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| @Override | ||
| public void refresh() {} | ||
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| @Override | ||
| public void close() { | ||
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| } | ||
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| public static class MockDiskCacheFactory implements Factory { | ||
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| public static final String NAME = "mockDiskCache"; | ||
| final long delay; | ||
| final int maxSize; | ||
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| public MockDiskCacheFactory(long delay, int maxSize) { | ||
| this.delay = delay; | ||
| this.maxSize = maxSize; | ||
| } | ||
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| @Override | ||
| public <K, V> ICache<K, V> create(CacheConfig<K, V> config, CacheType cacheType, Map<String, Factory> cacheFactories) { | ||
| return new Builder<K, V>().setMaxSize(maxSize).setDeliberateDelay(delay).build(); | ||
| } | ||
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| @Override | ||
| public String getCacheName() { | ||
| return NAME; | ||
| } | ||
| } | ||
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| public static class Builder<K, V> extends ICacheBuilder<K, V> { | ||
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| int maxSize; | ||
| long delay; | ||
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| @Override | ||
| public ICache<K, V> build() { | ||
| return new MockDiskCache<K, V>(this.maxSize, this.delay); | ||
| } | ||
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| public Builder<K, V> setMaxSize(int maxSize) { | ||
| this.maxSize = maxSize; | ||
| return this; | ||
| } | ||
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| public Builder<K, V> setDeliberateDelay(long millis) { | ||
| this.delay = millis; | ||
| return this; | ||
| } | ||
| } | ||
| } |
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