/*
* Copyright (c) 2008-2017, Hazelcast, Inc. 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.hazelcast.cache;
import com.hazelcast.config.CacheConfig;
import com.hazelcast.test.HazelcastTestSupport;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runners.Parameterized;
import javax.cache.Cache;
import javax.cache.CacheManager;
import javax.cache.spi.CachingProvider;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import static org.junit.Assert.assertEquals;
public abstract class CacheIteratorAbstractTest extends HazelcastTestSupport {
private static final int CONFIGURED_FETCH_SIZE = 25;
private CachingProvider cachingProvider;
@Parameterized.Parameters(name = "configureFetchSize:{0}")
public static Collection<Object[]> parameters() {
return Arrays.asList(new Object[][]{
{false},
{true}
});
}
@Parameterized.Parameter(0)
public boolean configureFetchSize;
protected Iterator getIterator(Cache cache) {
if (configureFetchSize) {
return ((ICache) cache).iterator(CONFIGURED_FETCH_SIZE);
} else {
return cache.iterator();
}
}
@Before
public void init() {
cachingProvider = createCachingProvider();
}
protected abstract CachingProvider createCachingProvider();
@After
public void tear() {
cachingProvider.close();
}
private Cache<Integer, Integer> getCache() {
String cacheName = randomString();
CacheManager cacheManager = cachingProvider.getCacheManager();
CacheConfig<Integer, Integer> config = new CacheConfig<Integer, Integer>();
return cacheManager.createCache(cacheName, config);
}
@Test
public void testIterator() {
ICache<Integer, Integer> cache = (ICache<Integer, Integer>) getCache();
int size = 1111;
int multiplier = 11;
for (int i = 0; i < size; i++) {
cache.put(i, i * multiplier);
}
int[] keys = new int[size];
int k = 0;
Iterator<Cache.Entry<Integer, Integer>> iter = getIterator(cache);
while (iter.hasNext()) {
Cache.Entry<Integer, Integer> e = iter.next();
int key = e.getKey();
int value = e.getValue();
assertEquals(key * multiplier, value);
keys[k++] = key;
}
assertEquals(size, k);
Arrays.sort(keys);
for (int i = 0; i < size; i++) {
assertEquals(i, keys[i]);
}
}
@Test
public void testIteratorRemove() {
ICache<Integer, Integer> cache = (ICache<Integer, Integer>) getCache();
int size = 1111;
for (int i = 0; i < size; i++) {
cache.put(i, i);
}
Iterator<Cache.Entry<Integer, Integer>> iter = getIterator(cache);
while (iter.hasNext()) {
iter.next();
iter.remove();
}
assertEquals(0, cache.size());
}
@Test(expected = IllegalStateException.class)
public void testIteratorIllegalRemove() {
ICache<Integer, Integer> cache = (ICache<Integer, Integer>) getCache();
int size = 10;
for (int i = 0; i < size; i++) {
cache.put(i, i);
}
Iterator<Cache.Entry<Integer, Integer>> iter = getIterator(cache);
if (iter.hasNext()) {
iter.remove();
}
}
}