Browse Source
This commit removes `GuavaCache` and support classes. Caffeine supersedes the caching support in the Google Guava library with an actively maintained Java 8+ version in standalone form. As it is the only Guava feature Spring framework integrates with, this commit removes effectively any reference to Guava. Issue: SPR-13797pull/1106/head
Stephane Nicoll
10 years ago
9 changed files with 6 additions and 699 deletions
@ -1,165 +0,0 @@
@@ -1,165 +0,0 @@
|
||||
/* |
||||
* Copyright 2002-2015 the original author or authors. |
||||
* |
||||
* 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 org.springframework.cache.guava; |
||||
|
||||
import java.util.concurrent.Callable; |
||||
import java.util.concurrent.ExecutionException; |
||||
|
||||
import com.google.common.cache.LoadingCache; |
||||
import com.google.common.util.concurrent.UncheckedExecutionException; |
||||
|
||||
import org.springframework.cache.support.AbstractValueAdaptingCache; |
||||
import org.springframework.util.Assert; |
||||
|
||||
/** |
||||
* Spring {@link org.springframework.cache.Cache} adapter implementation |
||||
* on top of a Guava {@link com.google.common.cache.Cache} instance. |
||||
* |
||||
* <p>Requires Google Guava 12.0 or higher. |
||||
* |
||||
* @author Juergen Hoeller |
||||
* @author Stephane Nicoll |
||||
* @since 4.0 |
||||
*/ |
||||
public class GuavaCache extends AbstractValueAdaptingCache { |
||||
|
||||
private final String name; |
||||
|
||||
private final com.google.common.cache.Cache<Object, Object> cache; |
||||
|
||||
|
||||
/** |
||||
* Create a {@link GuavaCache} instance with the specified name and the |
||||
* given internal {@link com.google.common.cache.Cache} to use. |
||||
* @param name the name of the cache |
||||
* @param cache the backing Guava Cache instance |
||||
*/ |
||||
public GuavaCache(String name, com.google.common.cache.Cache<Object, Object> cache) { |
||||
this(name, cache, true); |
||||
} |
||||
|
||||
/** |
||||
* Create a {@link GuavaCache} instance with the specified name and the |
||||
* given internal {@link com.google.common.cache.Cache} to use. |
||||
* @param name the name of the cache |
||||
* @param cache the backing Guava Cache instance |
||||
* @param allowNullValues whether to accept and convert {@code null} |
||||
* values for this cache |
||||
*/ |
||||
public GuavaCache(String name, com.google.common.cache.Cache<Object, Object> cache, boolean allowNullValues) { |
||||
super(allowNullValues); |
||||
Assert.notNull(name, "Name must not be null"); |
||||
Assert.notNull(cache, "Cache must not be null"); |
||||
this.name = name; |
||||
this.cache = cache; |
||||
} |
||||
|
||||
|
||||
@Override |
||||
public final String getName() { |
||||
return this.name; |
||||
} |
||||
|
||||
@Override |
||||
public final com.google.common.cache.Cache<Object, Object> getNativeCache() { |
||||
return this.cache; |
||||
} |
||||
|
||||
@Override |
||||
public ValueWrapper get(Object key) { |
||||
if (this.cache instanceof LoadingCache) { |
||||
try { |
||||
Object value = ((LoadingCache<Object, Object>) this.cache).get(key); |
||||
return toValueWrapper(value); |
||||
} |
||||
catch (ExecutionException ex) { |
||||
throw new UncheckedExecutionException(ex.getMessage(), ex); |
||||
} |
||||
} |
||||
return super.get(key); |
||||
} |
||||
|
||||
@SuppressWarnings("unchecked") |
||||
@Override |
||||
public <T> T get(Object key, final Callable<T> valueLoader) { |
||||
try { |
||||
return (T) fromStoreValue(this.cache.get(key, new Callable<Object>() { |
||||
@Override |
||||
public Object call() throws Exception { |
||||
return toStoreValue(valueLoader.call()); |
||||
} |
||||
})); |
||||
} |
||||
catch (ExecutionException ex) { |
||||
throw new ValueRetrievalException(key, valueLoader, ex.getCause()); |
||||
} |
||||
catch (UncheckedExecutionException ex) { |
||||
throw new ValueRetrievalException(key, valueLoader, ex.getCause()); |
||||
} |
||||
} |
||||
|
||||
@Override |
||||
protected Object lookup(Object key) { |
||||
return this.cache.getIfPresent(key); |
||||
} |
||||
|
||||
@Override |
||||
public void put(Object key, Object value) { |
||||
this.cache.put(key, toStoreValue(value)); |
||||
} |
||||
|
||||
@Override |
||||
public ValueWrapper putIfAbsent(Object key, final Object value) { |
||||
try { |
||||
PutIfAbsentCallable callable = new PutIfAbsentCallable(value); |
||||
Object result = this.cache.get(key, callable); |
||||
return (callable.called ? null : toValueWrapper(result)); |
||||
} |
||||
catch (ExecutionException ex) { |
||||
throw new IllegalStateException(ex); |
||||
} |
||||
} |
||||
|
||||
@Override |
||||
public void evict(Object key) { |
||||
this.cache.invalidate(key); |
||||
} |
||||
|
||||
@Override |
||||
public void clear() { |
||||
this.cache.invalidateAll(); |
||||
} |
||||
|
||||
|
||||
private class PutIfAbsentCallable implements Callable<Object> { |
||||
|
||||
private final Object value; |
||||
|
||||
private boolean called; |
||||
|
||||
public PutIfAbsentCallable(Object value) { |
||||
this.value = value; |
||||
} |
||||
|
||||
@Override |
||||
public Object call() throws Exception { |
||||
this.called = true; |
||||
return toStoreValue(this.value); |
||||
} |
||||
} |
||||
|
||||
} |
||||
@ -1,229 +0,0 @@
@@ -1,229 +0,0 @@
|
||||
/* |
||||
* Copyright 2002-2016 the original author or authors. |
||||
* |
||||
* 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 org.springframework.cache.guava; |
||||
|
||||
import java.util.Arrays; |
||||
import java.util.Collection; |
||||
import java.util.Collections; |
||||
import java.util.Map; |
||||
import java.util.concurrent.ConcurrentHashMap; |
||||
import java.util.concurrent.ConcurrentMap; |
||||
|
||||
import com.google.common.cache.CacheBuilder; |
||||
import com.google.common.cache.CacheBuilderSpec; |
||||
import com.google.common.cache.CacheLoader; |
||||
|
||||
import org.springframework.cache.Cache; |
||||
import org.springframework.cache.CacheManager; |
||||
import org.springframework.util.Assert; |
||||
import org.springframework.util.ObjectUtils; |
||||
|
||||
/** |
||||
* {@link CacheManager} implementation that lazily builds {@link GuavaCache} |
||||
* instances for each {@link #getCache} request. Also supports a 'static' mode |
||||
* where the set of cache names is pre-defined through {@link #setCacheNames}, |
||||
* with no dynamic creation of further cache regions at runtime. |
||||
* |
||||
* <p>The configuration of the underlying cache can be fine-tuned through a |
||||
* Guava {@link CacheBuilder} or {@link CacheBuilderSpec}, passed into this |
||||
* CacheManager through {@link #setCacheBuilder}/{@link #setCacheBuilderSpec}. |
||||
* A {@link CacheBuilderSpec}-compliant expression value can also be applied |
||||
* via the {@link #setCacheSpecification "cacheSpecification"} bean property. |
||||
* |
||||
* <p>Requires Google Guava 12.0 or higher. |
||||
* |
||||
* @author Juergen Hoeller |
||||
* @author Stephane Nicoll |
||||
* @since 4.0 |
||||
* @see GuavaCache |
||||
*/ |
||||
public class GuavaCacheManager implements CacheManager { |
||||
|
||||
private final ConcurrentMap<String, Cache> cacheMap = new ConcurrentHashMap<>(16); |
||||
|
||||
private boolean dynamic = true; |
||||
|
||||
private CacheBuilder<Object, Object> cacheBuilder = CacheBuilder.newBuilder(); |
||||
|
||||
private CacheLoader<Object, Object> cacheLoader; |
||||
|
||||
private boolean allowNullValues = true; |
||||
|
||||
|
||||
/** |
||||
* Construct a dynamic GuavaCacheManager, |
||||
* lazily creating cache instances as they are being requested. |
||||
*/ |
||||
public GuavaCacheManager() { |
||||
} |
||||
|
||||
/** |
||||
* Construct a static GuavaCacheManager, |
||||
* managing caches for the specified cache names only. |
||||
*/ |
||||
public GuavaCacheManager(String... cacheNames) { |
||||
setCacheNames(Arrays.asList(cacheNames)); |
||||
} |
||||
|
||||
|
||||
/** |
||||
* Specify the set of cache names for this CacheManager's 'static' mode. |
||||
* <p>The number of caches and their names will be fixed after a call to this method, |
||||
* with no creation of further cache regions at runtime. |
||||
* <p>Calling this with a {@code null} collection argument resets the |
||||
* mode to 'dynamic', allowing for further creation of caches again. |
||||
*/ |
||||
public void setCacheNames(Collection<String> cacheNames) { |
||||
if (cacheNames != null) { |
||||
for (String name : cacheNames) { |
||||
this.cacheMap.put(name, createGuavaCache(name)); |
||||
} |
||||
this.dynamic = false; |
||||
} |
||||
else { |
||||
this.dynamic = true; |
||||
} |
||||
} |
||||
|
||||
/** |
||||
* Set the Guava CacheBuilder to use for building each individual |
||||
* {@link GuavaCache} instance. |
||||
* @see #createNativeGuavaCache |
||||
* @see com.google.common.cache.CacheBuilder#build() |
||||
*/ |
||||
public void setCacheBuilder(CacheBuilder<Object, Object> cacheBuilder) { |
||||
Assert.notNull(cacheBuilder, "CacheBuilder must not be null"); |
||||
doSetCacheBuilder(cacheBuilder); |
||||
} |
||||
|
||||
/** |
||||
* Set the Guava CacheBuilderSpec to use for building each individual |
||||
* {@link GuavaCache} instance. |
||||
* @see #createNativeGuavaCache |
||||
* @see com.google.common.cache.CacheBuilder#from(CacheBuilderSpec) |
||||
*/ |
||||
public void setCacheBuilderSpec(CacheBuilderSpec cacheBuilderSpec) { |
||||
doSetCacheBuilder(CacheBuilder.from(cacheBuilderSpec)); |
||||
} |
||||
|
||||
/** |
||||
* Set the Guava cache specification String to use for building each |
||||
* individual {@link GuavaCache} instance. The given value needs to |
||||
* comply with Guava's {@link CacheBuilderSpec} (see its javadoc). |
||||
* @see #createNativeGuavaCache |
||||
* @see com.google.common.cache.CacheBuilder#from(String) |
||||
*/ |
||||
public void setCacheSpecification(String cacheSpecification) { |
||||
doSetCacheBuilder(CacheBuilder.from(cacheSpecification)); |
||||
} |
||||
|
||||
/** |
||||
* Set the Guava CacheLoader to use for building each individual |
||||
* {@link GuavaCache} instance, turning it into a LoadingCache. |
||||
* @see #createNativeGuavaCache |
||||
* @see com.google.common.cache.CacheBuilder#build(CacheLoader) |
||||
* @see com.google.common.cache.LoadingCache |
||||
*/ |
||||
public void setCacheLoader(CacheLoader<Object, Object> cacheLoader) { |
||||
if (!ObjectUtils.nullSafeEquals(this.cacheLoader, cacheLoader)) { |
||||
this.cacheLoader = cacheLoader; |
||||
refreshKnownCaches(); |
||||
} |
||||
} |
||||
|
||||
/** |
||||
* Specify whether to accept and convert {@code null} values for all caches |
||||
* in this cache manager. |
||||
* <p>Default is "true", despite Guava itself not supporting {@code null} values. |
||||
* An internal holder object will be used to store user-level {@code null}s. |
||||
*/ |
||||
public void setAllowNullValues(boolean allowNullValues) { |
||||
if (this.allowNullValues != allowNullValues) { |
||||
this.allowNullValues = allowNullValues; |
||||
refreshKnownCaches(); |
||||
} |
||||
} |
||||
|
||||
/** |
||||
* Return whether this cache manager accepts and converts {@code null} values |
||||
* for all of its caches. |
||||
*/ |
||||
public boolean isAllowNullValues() { |
||||
return this.allowNullValues; |
||||
} |
||||
|
||||
|
||||
@Override |
||||
public Collection<String> getCacheNames() { |
||||
return Collections.unmodifiableSet(this.cacheMap.keySet()); |
||||
} |
||||
|
||||
@Override |
||||
public Cache getCache(String name) { |
||||
Cache cache = this.cacheMap.get(name); |
||||
if (cache == null && this.dynamic) { |
||||
synchronized (this.cacheMap) { |
||||
cache = this.cacheMap.get(name); |
||||
if (cache == null) { |
||||
cache = createGuavaCache(name); |
||||
this.cacheMap.put(name, cache); |
||||
} |
||||
} |
||||
} |
||||
return cache; |
||||
} |
||||
|
||||
/** |
||||
* Create a new GuavaCache instance for the specified cache name. |
||||
* @param name the name of the cache |
||||
* @return the Spring GuavaCache adapter (or a decorator thereof) |
||||
*/ |
||||
protected Cache createGuavaCache(String name) { |
||||
return new GuavaCache(name, createNativeGuavaCache(name), isAllowNullValues()); |
||||
} |
||||
|
||||
/** |
||||
* Create a native Guava Cache instance for the specified cache name. |
||||
* @param name the name of the cache |
||||
* @return the native Guava Cache instance |
||||
*/ |
||||
protected com.google.common.cache.Cache<Object, Object> createNativeGuavaCache(String name) { |
||||
if (this.cacheLoader != null) { |
||||
return this.cacheBuilder.build(this.cacheLoader); |
||||
} |
||||
else { |
||||
return this.cacheBuilder.build(); |
||||
} |
||||
} |
||||
|
||||
private void doSetCacheBuilder(CacheBuilder<Object, Object> cacheBuilder) { |
||||
if (!ObjectUtils.nullSafeEquals(this.cacheBuilder, cacheBuilder)) { |
||||
this.cacheBuilder = cacheBuilder; |
||||
refreshKnownCaches(); |
||||
} |
||||
} |
||||
|
||||
/** |
||||
* Create the known caches again with the current state of this manager. |
||||
*/ |
||||
private void refreshKnownCaches() { |
||||
for (Map.Entry<String, Cache> entry : this.cacheMap.entrySet()) { |
||||
entry.setValue(createGuavaCache(entry.getKey())); |
||||
} |
||||
} |
||||
|
||||
} |
||||
@ -1,6 +0,0 @@
@@ -1,6 +0,0 @@
|
||||
/** |
||||
* Support classes for the open source cache in Google's |
||||
* <a href="http://code.google.com/p/guava-libraries/">Guava</a> library, |
||||
* allowing to set up Guava caches within Spring's cache abstraction. |
||||
*/ |
||||
package org.springframework.cache.guava; |
||||
@ -1,186 +0,0 @@
@@ -1,186 +0,0 @@
|
||||
/* |
||||
* Copyright 2002-2015 the original author or authors. |
||||
* |
||||
* 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 org.springframework.cache.guava; |
||||
|
||||
import com.google.common.cache.CacheBuilder; |
||||
import com.google.common.cache.CacheLoader; |
||||
import com.google.common.util.concurrent.UncheckedExecutionException; |
||||
import org.junit.Rule; |
||||
import org.junit.Test; |
||||
import org.junit.rules.ExpectedException; |
||||
|
||||
import org.springframework.cache.Cache; |
||||
import org.springframework.cache.CacheManager; |
||||
|
||||
import static org.junit.Assert.*; |
||||
import static org.mockito.Mockito.*; |
||||
|
||||
/** |
||||
* @author Juergen Hoeller |
||||
* @author Stephane Nicoll |
||||
*/ |
||||
public class GuavaCacheManagerTests { |
||||
|
||||
@Rule |
||||
public final ExpectedException thrown = ExpectedException.none(); |
||||
|
||||
@Test |
||||
public void testDynamicMode() { |
||||
CacheManager cm = new GuavaCacheManager(); |
||||
Cache cache1 = cm.getCache("c1"); |
||||
assertTrue(cache1 instanceof GuavaCache); |
||||
Cache cache1again = cm.getCache("c1"); |
||||
assertSame(cache1again, cache1); |
||||
Cache cache2 = cm.getCache("c2"); |
||||
assertTrue(cache2 instanceof GuavaCache); |
||||
Cache cache2again = cm.getCache("c2"); |
||||
assertSame(cache2again, cache2); |
||||
Cache cache3 = cm.getCache("c3"); |
||||
assertTrue(cache3 instanceof GuavaCache); |
||||
Cache cache3again = cm.getCache("c3"); |
||||
assertSame(cache3again, cache3); |
||||
|
||||
cache1.put("key1", "value1"); |
||||
assertEquals("value1", cache1.get("key1").get()); |
||||
cache1.put("key2", 2); |
||||
assertEquals(2, cache1.get("key2").get()); |
||||
cache1.put("key3", null); |
||||
assertNull(cache1.get("key3").get()); |
||||
cache1.evict("key3"); |
||||
assertNull(cache1.get("key3")); |
||||
} |
||||
|
||||
@Test |
||||
public void testStaticMode() { |
||||
GuavaCacheManager cm = new GuavaCacheManager("c1", "c2"); |
||||
Cache cache1 = cm.getCache("c1"); |
||||
assertTrue(cache1 instanceof GuavaCache); |
||||
Cache cache1again = cm.getCache("c1"); |
||||
assertSame(cache1again, cache1); |
||||
Cache cache2 = cm.getCache("c2"); |
||||
assertTrue(cache2 instanceof GuavaCache); |
||||
Cache cache2again = cm.getCache("c2"); |
||||
assertSame(cache2again, cache2); |
||||
Cache cache3 = cm.getCache("c3"); |
||||
assertNull(cache3); |
||||
|
||||
cache1.put("key1", "value1"); |
||||
assertEquals("value1", cache1.get("key1").get()); |
||||
cache1.put("key2", 2); |
||||
assertEquals(2, cache1.get("key2").get()); |
||||
cache1.put("key3", null); |
||||
assertNull(cache1.get("key3").get()); |
||||
cache1.evict("key3"); |
||||
assertNull(cache1.get("key3")); |
||||
|
||||
cm.setAllowNullValues(false); |
||||
Cache cache1x = cm.getCache("c1"); |
||||
assertTrue(cache1x instanceof GuavaCache); |
||||
assertTrue(cache1x != cache1); |
||||
Cache cache2x = cm.getCache("c2"); |
||||
assertTrue(cache2x instanceof GuavaCache); |
||||
assertTrue(cache2x != cache2); |
||||
Cache cache3x = cm.getCache("c3"); |
||||
assertNull(cache3x); |
||||
|
||||
cache1x.put("key1", "value1"); |
||||
assertEquals("value1", cache1x.get("key1").get()); |
||||
cache1x.put("key2", 2); |
||||
assertEquals(2, cache1x.get("key2").get()); |
||||
try { |
||||
cache1x.put("key3", null); |
||||
fail("Should have thrown NullPointerException"); |
||||
} |
||||
catch (NullPointerException ex) { |
||||
// expected
|
||||
} |
||||
|
||||
cm.setAllowNullValues(true); |
||||
Cache cache1y = cm.getCache("c1"); |
||||
|
||||
cache1y.put("key3", null); |
||||
assertNull(cache1y.get("key3").get()); |
||||
cache1y.evict("key3"); |
||||
assertNull(cache1y.get("key3")); |
||||
} |
||||
|
||||
@Test |
||||
public void changeCacheSpecificationRecreateCache() { |
||||
GuavaCacheManager cm = new GuavaCacheManager("c1"); |
||||
Cache cache1 = cm.getCache("c1"); |
||||
|
||||
CacheBuilder<Object, Object> cacheBuilder = CacheBuilder.newBuilder().maximumSize(10); |
||||
cm.setCacheBuilder(cacheBuilder); |
||||
Cache cache1x = cm.getCache("c1"); |
||||
assertTrue(cache1x != cache1); |
||||
|
||||
cm.setCacheBuilder(cacheBuilder); // Set same instance
|
||||
Cache cache1xx = cm.getCache("c1"); |
||||
assertSame(cache1x, cache1xx); |
||||
} |
||||
|
||||
@Test |
||||
public void changeCacheLoaderRecreateCache() { |
||||
GuavaCacheManager cm = new GuavaCacheManager("c1"); |
||||
Cache cache1 = cm.getCache("c1"); |
||||
|
||||
CacheLoader<Object,Object> loader = mockCacheLoader(); |
||||
cm.setCacheLoader(loader); |
||||
Cache cache1x = cm.getCache("c1"); |
||||
assertTrue(cache1x != cache1); |
||||
|
||||
cm.setCacheLoader(loader); // Set same instance
|
||||
Cache cache1xx = cm.getCache("c1"); |
||||
assertSame(cache1x, cache1xx); |
||||
} |
||||
|
||||
@Test |
||||
public void setCacheNameNullRestoreDynamicMode() { |
||||
GuavaCacheManager cm = new GuavaCacheManager("c1"); |
||||
assertNull(cm.getCache("someCache")); |
||||
cm.setCacheNames(null); |
||||
assertNotNull(cm.getCache("someCache")); |
||||
} |
||||
|
||||
@Test |
||||
public void cacheLoaderUseLoadingCache() { |
||||
GuavaCacheManager cm = new GuavaCacheManager("c1"); |
||||
cm.setCacheLoader(new CacheLoader<Object, Object>() { |
||||
@Override |
||||
public Object load(Object key) throws Exception { |
||||
if ("ping".equals(key)) { |
||||
return "pong"; |
||||
} |
||||
throw new IllegalArgumentException("I only know ping"); |
||||
} |
||||
}); |
||||
Cache cache1 = cm.getCache("c1"); |
||||
Cache.ValueWrapper value = cache1.get("ping"); |
||||
assertNotNull(value); |
||||
assertEquals("pong", value.get()); |
||||
|
||||
thrown.expect(UncheckedExecutionException.class); |
||||
thrown.expectMessage("I only know ping"); |
||||
assertNull(cache1.get("foo")); |
||||
} |
||||
|
||||
@SuppressWarnings("unchecked") |
||||
private CacheLoader<Object, Object> mockCacheLoader() { |
||||
return mock(CacheLoader.class); |
||||
} |
||||
|
||||
} |
||||
@ -1,68 +0,0 @@
@@ -1,68 +0,0 @@
|
||||
/* |
||||
* Copyright 2002-2015 the original author or authors. |
||||
* |
||||
* 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 org.springframework.cache.guava; |
||||
|
||||
import com.google.common.cache.CacheBuilder; |
||||
import org.junit.Before; |
||||
import org.junit.Test; |
||||
|
||||
import org.springframework.cache.AbstractCacheTests; |
||||
import org.springframework.cache.Cache; |
||||
|
||||
import static org.junit.Assert.*; |
||||
|
||||
/** |
||||
* @author Stephane Nicoll |
||||
*/ |
||||
public class GuavaCacheTests extends AbstractCacheTests<GuavaCache> { |
||||
|
||||
private com.google.common.cache.Cache<Object, Object> nativeCache; |
||||
private GuavaCache cache; |
||||
|
||||
@Before |
||||
public void setUp() { |
||||
nativeCache = CacheBuilder.newBuilder().build(); |
||||
cache = new GuavaCache(CACHE_NAME, nativeCache); |
||||
} |
||||
|
||||
@Override |
||||
protected GuavaCache getCache() { |
||||
return cache; |
||||
} |
||||
|
||||
@Override |
||||
protected Object getNativeCache() { |
||||
return nativeCache; |
||||
} |
||||
|
||||
@Test |
||||
public void putIfAbsentNullValue() throws Exception { |
||||
GuavaCache cache = getCache(); |
||||
|
||||
Object key = new Object(); |
||||
Object value = null; |
||||
|
||||
assertNull(cache.get(key)); |
||||
assertNull(cache.putIfAbsent(key, value)); |
||||
assertEquals(value, cache.get(key).get()); |
||||
Cache.ValueWrapper wrapper = cache.putIfAbsent(key, "anotherValue"); |
||||
assertNotNull(wrapper); // A value is set but is 'null'
|
||||
assertEquals(null, wrapper.get()); |
||||
assertEquals(value, cache.get(key).get()); // not changed
|
||||
} |
||||
|
||||
} |
||||
Loading…
Reference in new issue