/*
* Copyright 2010-2013 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.data.gemfire.client;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import javax.annotation.Resource;
import org.apache.geode.cache.CacheLoader;
import org.apache.geode.cache.CacheLoaderException;
import org.apache.geode.cache.CacheWriterException;
import org.apache.geode.cache.EntryEvent;
import org.apache.geode.cache.LoaderHelper;
import org.apache.geode.cache.Region;
import org.apache.geode.cache.util.CacheWriterAdapter;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
* The ClientRegionWithCacheLoaderWriterTest class is a test suite of test cases testing the addition of CacheLoaders
* and CacheWriters to a client, local Region inside a GemFire Cache.
*
* @author John Blum
* @see org.junit.Test
* @see org.junit.runner.RunWith
* @see org.springframework.context.ApplicationContext
* @see org.springframework.test.context.ContextConfiguration
* @see org.springframework.test.context.junit4.SpringJUnit4ClassRunner
* @see org.apache.geode.cache.CacheLoader
* @see org.apache.geode.cache.CacheWriter
* @see org.apache.geode.cache.Region
* @since 1.3.3
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "clientcache-with-region-using-cache-loader-writer.xml")
@SuppressWarnings("unused")
public class ClientRegionWithCacheLoaderWriterTest {
private static final int REGION_SIZE = 100;
@Autowired
private ApplicationContext context;
@Resource(name = "localAppDataRegion")
private Region<Integer, Integer> localAppData;
@Test
public void testCacheLoaderWriter() {
assertNotNull(localAppData);
assertEquals(0, localAppData.size());
for (int key = 0; key < REGION_SIZE; key++) {
assertEquals(key + 1, localAppData.get(key).intValue());
}
assertEquals(REGION_SIZE, localAppData.size());
for (int key = 0; key < REGION_SIZE; key++) {
assertEquals(key + 1, localAppData.put(key, REGION_SIZE - key).intValue());
}
LocalAppDataCacheWriter localCacheWriter = context.getBean("localCacheWriter", LocalAppDataCacheWriter.class);
assertNotNull(localCacheWriter);
for (int key = 0; key < REGION_SIZE; key++) {
assertEquals(REGION_SIZE - key, localCacheWriter.get(key).intValue());
}
}
public static class LocalAppDataCacheLoader implements CacheLoader<Integer, Integer> {
private static final AtomicInteger VALUE_GENERATOR = new AtomicInteger(0);
@Override
public Integer load(final LoaderHelper<Integer, Integer> helper) throws CacheLoaderException {
return VALUE_GENERATOR.incrementAndGet();
}
@Override
public void close() {
}
}
public static class LocalAppDataCacheWriter extends CacheWriterAdapter<Integer, Integer> {
private static final Map<Integer, Integer> data = new ConcurrentHashMap<Integer, Integer>(REGION_SIZE);
@Override
public void beforeUpdate(final EntryEvent<Integer, Integer> event) throws CacheWriterException {
data.put(event.getKey(), event.getNewValue());
}
public Integer get(final Integer key) {
return data.get(key);
}
}
}