/*
* Copyright 2014 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.cache;
import java.util.concurrent.CompletableFuture;
import org.hamcrest.Description;
import org.hamcrest.TypeSafeDiagnosingMatcher;
/**
* A matcher that evaluates a {@link AsyncLoadingCache} to determine if it is in a valid state.
*
* @author ben.manes@gmail.com (Ben Manes)
*/
public final class IsValidAsyncCache<K, V>
extends TypeSafeDiagnosingMatcher<AsyncLoadingCache<K, V>> {
Description description;
@Override
public void describeTo(Description description) {
description.appendText("async cache");
if (this.description != description) {
description.appendText(this.description.toString());
}
}
@Override
protected boolean matchesSafely(AsyncLoadingCache<K, V> cache, Description description) {
this.description = description;
if (cache instanceof BoundedLocalCache.BoundedLocalAsyncLoadingCache<?, ?>) {
BoundedLocalCache.BoundedLocalAsyncLoadingCache<K, V> local =
(BoundedLocalCache.BoundedLocalAsyncLoadingCache<K, V>) cache;
return IsValidBoundedLocalCache.<K, CompletableFuture<V>>valid()
.matchesSafely(local.cache, description);
}
if (cache instanceof UnboundedLocalCache.UnboundedLocalAsyncLoadingCache<?, ?>) {
UnboundedLocalCache.UnboundedLocalAsyncLoadingCache<K, V> local =
(UnboundedLocalCache.UnboundedLocalAsyncLoadingCache<K, V>) cache;
return IsValidUnboundedLocalCache.<K, CompletableFuture<V>>valid()
.matchesSafely(local.cache, description);
}
return true;
}
public static <K, V> IsValidAsyncCache<K, V> validAsyncCache() {
return new IsValidAsyncCache<>();
}
}