#5173

Committed 29 Dec 2025 05:27AM UTC coverage: 0.0% (-100.0%) from 100.0%

Build # #5173

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push

github

Committed by

ben-manes

Commit Message

speed up development ci build

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/guava/src/main/java/com/github/benmanes/caffeine/guava/CaffeinatedGuava.java

/*
 * Copyright 2015 Ben Manes. All Rights Reserved.
 *
 * 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 com.github.benmanes.caffeine.guava;

import java.lang.reflect.Method;

import org.jspecify.annotations.NullMarked;

import com.github.benmanes.caffeine.cache.Caffeine;
import com.github.benmanes.caffeine.guava.CaffeinatedGuavaLoadingCache.ExternalBulkLoader;
import com.github.benmanes.caffeine.guava.CaffeinatedGuavaLoadingCache.ExternalSingleLoader;
import com.github.benmanes.caffeine.guava.CaffeinatedGuavaLoadingCache.InternalBulkLoader;
import com.github.benmanes.caffeine.guava.CaffeinatedGuavaLoadingCache.InternalSingleLoader;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;

/**
 * Static utility methods pertaining to adapting between Caffeine and Guava cache interfaces.
 *
 * @author ben.manes@gmail.com (Ben Manes)
 */
@NullMarked
public final class CaffeinatedGuava {

  private CaffeinatedGuava() {}

  /**
   * Returns a Caffeine cache wrapped in a Guava {@link Cache} facade.
   *
   * @param builder the configured cache builder
   * @param <K> the most general key type to create caches for
   * @param <V> the most general value type to create caches for
   * @param <K1> the key type of the cache
   * @param <V1> the value type of the cache
   * @return a cache exposed under the Guava APIs
   */
  @SuppressWarnings("PMD.TypeParameterNamingConventions")
  public static <K, V, K1 extends K, V1 extends V> Cache<K1, V1> build(Caffeine<K, V> builder) {
    return new CaffeinatedGuavaCache<>(builder.build());
  }

  /**
   * Returns a Caffeine cache wrapped in a Guava {@link LoadingCache} facade.
   *
   * @param builder the configured cache builder
   * @param loader the cache loader used to obtain new values
   * @param <K> the most general key type to create caches for
   * @param <V> the most general value type to create caches for
   * @param <K1> the key type of the cache
   * @param <V1> the value type of the cache
   * @return a cache exposed under the Guava APIs
   */
  @SuppressWarnings("PMD.TypeParameterNamingConventions")
  public static <K, V, K1 extends K, V1 extends V> LoadingCache<K1, V1> build(
      Caffeine<K, V> builder, CacheLoader<? super K1, V1> loader) {
    return build(builder, hasLoadAll(loader)
        ? new InternalBulkLoader<>(loader)
        : new InternalSingleLoader<>(loader));
  }

  /**
   * Returns a Caffeine cache wrapped in a Guava {@link LoadingCache} facade.
   *
   * @param builder the configured cache builder
   * @param loader the cache loader used to obtain new values
   * @param <K> the most general key type to create caches for
   * @param <V> the most general value type to create caches for
   * @param <K1> the key type of the cache
   * @param <V1> the value type of the cache
   * @return a cache exposed under the Guava APIs
   */
  @SuppressWarnings("PMD.TypeParameterNamingConventions")
  public static <K, V, K1 extends K, V1 extends V> LoadingCache<K1, V1> build(
      Caffeine<K, V> builder,
      com.github.benmanes.caffeine.cache.CacheLoader<? super K1, V1> loader) {
    return new CaffeinatedGuavaLoadingCache<>(builder.build(loader));
  }

  /**
   * Returns a Caffeine cache loader that delegates to a Guava cache loader.
   *
   * @param loader the cache loader used to obtain new values
   * @param <K> the type of keys
   * @param <V> the type of values
   * @return a cache loader exposed under the Caffeine APIs
   */
  public static <K, V> com.github.benmanes.caffeine.cache.CacheLoader<K, V> caffeinate(
      CacheLoader<K, V> loader) {
    return hasLoadAll(loader)
        ? new ExternalBulkLoader<>(loader)
        : new ExternalSingleLoader<>(loader);
  }

  static boolean hasLoadAll(CacheLoader<?, ?> cacheLoader) {
    return hasMethod(cacheLoader, "loadAll", Iterable.class);
  }

  static boolean hasMethod(CacheLoader<?, ?> cacheLoader, String name, Class<?>... paramTypes) {
    try {
      Method method = cacheLoader.getClass().getMethod(name, paramTypes);
      return (method.getDeclaringClass() != CacheLoader.class);
    } catch (NoSuchMethodException | SecurityException e) {
      return false;
    }
  }
}

1	/*
2	* Copyright 2015 Ben Manes. All Rights Reserved.
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package com.github.benmanes.caffeine.guava;
17
18	import java.lang.reflect.Method;
19
20	import org.jspecify.annotations.NullMarked;
21
22	import com.github.benmanes.caffeine.cache.Caffeine;
23	import com.github.benmanes.caffeine.guava.CaffeinatedGuavaLoadingCache.ExternalBulkLoader;
24	import com.github.benmanes.caffeine.guava.CaffeinatedGuavaLoadingCache.ExternalSingleLoader;
25	import com.github.benmanes.caffeine.guava.CaffeinatedGuavaLoadingCache.InternalBulkLoader;
26	import com.github.benmanes.caffeine.guava.CaffeinatedGuavaLoadingCache.InternalSingleLoader;
27	import com.google.common.cache.Cache;
28	import com.google.common.cache.CacheLoader;
29	import com.google.common.cache.LoadingCache;
30
31	/**
32	* Static utility methods pertaining to adapting between Caffeine and Guava cache interfaces.
33	*
34	* @author ben.manes@gmail.com (Ben Manes)
35	*/
36	@NullMarked
37	public final class CaffeinatedGuava {
38
39	private CaffeinatedGuava() {}
40
41	/**
42	* Returns a Caffeine cache wrapped in a Guava {@link Cache} facade.
43	*
44	* @param builder the configured cache builder
45	* @param <K> the most general key type to create caches for
46	* @param <V> the most general value type to create caches for
47	* @param <K1> the key type of the cache
48	* @param <V1> the value type of the cache
49	* @return a cache exposed under the Guava APIs
50	*/
51	@SuppressWarnings("PMD.TypeParameterNamingConventions")
52	public static <K, V, K1 extends K, V1 extends V> Cache<K1, V1> build(Caffeine<K, V> builder) {
53	return new CaffeinatedGuavaCache<>(builder.build());	×
54	}
55
56	/**
57	* Returns a Caffeine cache wrapped in a Guava {@link LoadingCache} facade.
58	*
59	* @param builder the configured cache builder
60	* @param loader the cache loader used to obtain new values
61	* @param <K> the most general key type to create caches for
62	* @param <V> the most general value type to create caches for
63	* @param <K1> the key type of the cache
64	* @param <V1> the value type of the cache
65	* @return a cache exposed under the Guava APIs
66	*/
67	@SuppressWarnings("PMD.TypeParameterNamingConventions")
68	public static <K, V, K1 extends K, V1 extends V> LoadingCache<K1, V1> build(
69	Caffeine<K, V> builder, CacheLoader<? super K1, V1> loader) {
70	return build(builder, hasLoadAll(loader)	×
71	? new InternalBulkLoader<>(loader)	×
72	: new InternalSingleLoader<>(loader));	×
73	}
74
75	/**
76	* Returns a Caffeine cache wrapped in a Guava {@link LoadingCache} facade.
77	*
78	* @param builder the configured cache builder
79	* @param loader the cache loader used to obtain new values
80	* @param <K> the most general key type to create caches for
81	* @param <V> the most general value type to create caches for
82	* @param <K1> the key type of the cache
83	* @param <V1> the value type of the cache
84	* @return a cache exposed under the Guava APIs
85	*/
86	@SuppressWarnings("PMD.TypeParameterNamingConventions")
87	public static <K, V, K1 extends K, V1 extends V> LoadingCache<K1, V1> build(
88	Caffeine<K, V> builder,
89	com.github.benmanes.caffeine.cache.CacheLoader<? super K1, V1> loader) {
90	return new CaffeinatedGuavaLoadingCache<>(builder.build(loader));	×
91	}
92
93	/**
94	* Returns a Caffeine cache loader that delegates to a Guava cache loader.
95	*
96	* @param loader the cache loader used to obtain new values
97	* @param <K> the type of keys
98	* @param <V> the type of values
99	* @return a cache loader exposed under the Caffeine APIs
100	*/
101	public static <K, V> com.github.benmanes.caffeine.cache.CacheLoader<K, V> caffeinate(
102	CacheLoader<K, V> loader) {
103	return hasLoadAll(loader)	×
104	? new ExternalBulkLoader<>(loader)	×
105	: new ExternalSingleLoader<>(loader);	×
106	}
107
108	static boolean hasLoadAll(CacheLoader<?, ?> cacheLoader) {
109	return hasMethod(cacheLoader, "loadAll", Iterable.class);	×
110	}
111
112	static boolean hasMethod(CacheLoader<?, ?> cacheLoader, String name, Class<?>... paramTypes) {
113	try {
114	Method method = cacheLoader.getClass().getMethod(name, paramTypes);	×
115	return (method.getDeclaringClass() != CacheLoader.class);	×
116	} catch (NoSuchMethodException \| SecurityException e) {	×
117	return false;	×
118	}
119	}
120	}

ben-manes / caffeine / #5173

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