/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.chemistry.opencmis.client.runtime;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.HashMap;
import java.util.Map;
import junit.framework.Assert;
import org.apache.chemistry.opencmis.client.api.CmisObject;
import org.apache.chemistry.opencmis.client.runtime.cache.Cache;
import org.apache.chemistry.opencmis.client.runtime.cache.CacheImpl;
import org.apache.chemistry.opencmis.commons.SessionParameter;
import org.junit.Before;
import org.junit.Test;
public class CacheTest {
@Before
public void setup() {
}
@Test
public void cacheSingleObjectTest() {
Cache cache = createCache(100, 3600 * 1000);
String id = "1";
// String path = "/1";
String cacheKey = "key";
// add object
CmisObject obj1 = this.createCmisObject(id);
cache.put(obj1, cacheKey);
// access object
Assert.assertTrue(cache.containsId(id, cacheKey));
// access object
CmisObject obj2 = cache.getById(id, cacheKey);
Assert.assertEquals(obj1, obj2);
// clear cache
cache.clear();
// access object (not found)
Assert.assertFalse(cache.containsId(id, cacheKey));
// access object (not found)
CmisObject obj4 = cache.getById(id, cacheKey);
Assert.assertNull(obj4);
}
@Test
public void cacheSizeTest() {
int cacheSize = 50000;
Cache cache = createCache(cacheSize, 3600 * 1000);
Assert.assertEquals(cacheSize, cache.getCacheSize());
}
@Test
public void lruTest() {
int cacheSize = 3;
Cache cache = createCache(cacheSize, 3600 * 1000);
String cacheKey = "key";
for (int i = 0; i < cacheSize + 1; i++) {
CmisObject obj = this.createCmisObject("id" + i);
cache.put(obj, cacheKey);
}
Assert.assertNull(cache.getById("id0", cacheKey)); // thrown out
Assert.assertNotNull(cache.getById("id1", cacheKey));
Assert.assertNotNull(cache.getById("id2", cacheKey));
Assert.assertNotNull(cache.getById("id3", cacheKey));
}
@SuppressWarnings("static-access")
@Test
public void ttlTest() throws InterruptedException {
Cache cache = createCache(10, 500);
String cacheKey = "key";
String id = "id";
CmisObject obj = this.createCmisObject(id);
cache.put(obj, cacheKey);
Assert.assertNotNull(cache.getById(id, cacheKey));
Thread.currentThread().sleep(501);
Assert.assertNull(cache.getById(id, cacheKey));
}
@Test
public void serializationTest() throws IOException, ClassNotFoundException {
int cacheSize = 10;
Cache cache = createCache(cacheSize, 3600 * 1000);
String cacheKey = "key";
for (int i = 0; i < cacheSize; i++) {
CmisObject obj = this.createCmisObject("id" + i);
cache.put(obj, cacheKey);
}
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(buffer);
out.writeObject(cache);
out.close();
ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
Cache cache2 = (Cache) in.readObject();
in.close();
for (int k = 0; k < cacheSize; k++) {
CmisObject o1 = cache.getById("id" + k, cacheKey);
CmisObject o2 = cache2.getById("id" + k, cacheKey);
Assert.assertEquals(o1.getId(), o2.getId());
}
}
/**
* Create a Mock for testing Cache is sufficient.
*
* @param id
* @param path
* @return a mocked object
*/
private CmisObject createCmisObject(final String id) {
return new CmisObjectMock(id);
}
private Cache createCache(int cacheSize, int ttl) {
Cache cache = new CacheImpl();
Map<String, String> parameters = new HashMap<String, String>();
parameters.put(SessionParameter.CACHE_SIZE_OBJECTS, "" + cacheSize);
parameters.put(SessionParameter.CACHE_TTL_OBJECTS, "" + ttl);
cache.initialize(null, parameters);
return cache;
}
}