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59851: Merged BRANCHES/DEV/mward/head_bf_gdata_upgd to BRANCHES/DEV/HEAD-BUG-FIX (local cache improvements): 59586: DefaultSimpleCache max size is Integer.MAX_VALUE when configured with maxItems of 0. 59590: maxItems for DefaultSimpleCache is now an optional feature. 59592: non-clustered caches will not use size-based eviction when {cacheName}.eviction-policy=NONE, to match clustered caches. 59594: Added TTL to DefaultSimpleCache - not yet configurable through the factory. 59602: DefaultCacheFactory can create caches with a time-to-live setting enabled. 59620: Organise imports for DefaultSimpleCache 59622: DefaultSimpleCache: changed field name from map to cache, as this makes more sense with changing to use of CacheBuilder. 59627: Added maxIdleSecs property to DefaultSimpleCache - not yet configurable from the cache factory. 59629: DefaultCacheFactory now supports maxIdleSeconds property for configuring non-clustered caches. 59633: Updated description of supported non-clustered cache properties in caches.properties git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@62192 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
196 lines
6.7 KiB
Java
196 lines
6.7 KiB
Java
/*
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* Copyright (C) 2005-2012 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.cache;
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import static org.junit.Assert.*;
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import org.junit.Test;
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/**
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* Tests for the DefaultSimpleCache class.
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*
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* @author Matt Ward
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*/
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public class DefaultSimpleCacheTest extends SimpleCacheTestBase<DefaultSimpleCache<Integer, String>>
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{
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@Override
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protected DefaultSimpleCache<Integer, String> createCache()
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{
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return new DefaultSimpleCache<Integer, String>(100, true, 0, 0, getClass().getName());
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}
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@Test
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public void boundedSizeCache() throws Exception
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{
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// We'll only keep the LAST 3 items
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cache = new DefaultSimpleCache<Integer, String>(3, true, 0, 0, getClass().getName());
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cache.put(1, "1");
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cache.put(2, "2");
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cache.put(3, "3");
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cache.put(4, "4");
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cache.put(5, "5");
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// Lost the first item
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assertNull(cache.get(1));
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assertFalse(cache.contains(1));
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// Lost the second item
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assertNull(cache.get(2));
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assertFalse(cache.contains(2));
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// Last three are still present
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assertEquals("3", cache.get(3));
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assertEquals("4", cache.get(4));
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assertEquals("5", cache.get(5));
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assertTrue(cache.isUseMaxItems());
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}
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@Test
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public void defaultMaxItems()
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{
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// maxItems of 0 results in a capacity of Integer.MAX_VALUE - this is to match Hazelcast cache behaviour.
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cache = new DefaultSimpleCache<Integer, String>(0, true, 0, 0, getClass().getName());
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assertEquals(Integer.MAX_VALUE, cache.getMaxItems());
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assertTrue(cache.isUseMaxItems());
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}
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@Test
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public void sizeLimitConstructor()
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{
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cache = new DefaultSimpleCache<Integer, String>(123, getClass().getName());
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assertEquals(123, cache.getMaxItems());
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assertTrue(cache.isUseMaxItems());
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}
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@Test(expected=IllegalArgumentException.class)
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public void noNegativeMaxItems()
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{
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cache = new DefaultSimpleCache<Integer, String>(-1, true, 0, 0, getClass().getName());
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}
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@Test
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public void putAndCheckUpdate()
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{
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// Put an initial value
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cache.put(101, "101");
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// Update it
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assertEquals(true, cache.putAndCheckUpdate(101, "99101"));
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// Check the value really was updated
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assertEquals("99101", cache.get(101));
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// Precondition: no value for key 102
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assertFalse(cache.contains(102));
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// Put a value - and test the return
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assertEquals(false, cache.putAndCheckUpdate(102, "102"));
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assertEquals("102", cache.get(102));
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cache.put(103, null);
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assertEquals(true, cache.putAndCheckUpdate(103, "103"));
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// Repeat the put, this should not be an update
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assertEquals(false, cache.putAndCheckUpdate(103, "103"));
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assertFalse(cache.contains(104));
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assertEquals(false, cache.putAndCheckUpdate(104, null));
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// Repeat putting null - still not an update, as we had that value a moment ago.
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assertEquals(false, cache.putAndCheckUpdate(104, null));
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// Now an update
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assertEquals(true, cache.putAndCheckUpdate(104, "104"));
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// Another update
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assertEquals(true, cache.putAndCheckUpdate(104, "99104"));
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// Another update, back to null
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assertEquals(true, cache.putAndCheckUpdate(104, null));
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// Not an update - still null
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assertEquals(false, cache.putAndCheckUpdate(104, null));
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cache.remove(104);
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assertEquals(false, cache.putAndCheckUpdate(104, "104"));
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assertEquals(true, cache.putAndCheckUpdate(104, null));
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}
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// TODO: Timer-based tests are not ideal. An alternative approach is to factor out the CacheBuilder.newBuilder()
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// call to a protected method, override that in this test class to return a mock and use the mock to check
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// that the Cache is being configured correctly, e.g. assert that expireAfterWrite(int, TimeUnit) is called.
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@Test
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public void cachesCanHaveTTL()
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{
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// TTL of 7 seconds
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cache = new DefaultSimpleCache<Integer, String>(0, false, 7, 0, getClass().getName());
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assertFalse(cache.isUseMaxItems());
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cache.put(1, "1");
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assertTrue(cache.contains(1));
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assertFalse(cache.contains(2));
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assertFalse(cache.contains(3));
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sleep(5);
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cache.put(2, "2");
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assertTrue(cache.contains(1));
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assertTrue(cache.contains(2));
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assertFalse(cache.contains(3));
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sleep(5);
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cache.put(3, "3");
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assertFalse(cache.contains(1));
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assertTrue(cache.contains(2)); // Only ~5 seconds have passed for this key
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assertTrue(cache.contains(3));
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}
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@Test
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public void cachesCanHaveTTI()
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{
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cache = new DefaultSimpleCache<Integer, String>(0, false, 0, 8, getClass().getName());
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assertFalse(cache.isUseMaxItems());
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assertEquals(0, cache.getTTLSecs());
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assertEquals(8, cache.getMaxIdleSecs());
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cache.put(1, "1");
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assertEquals("1", cache.get(1));
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sleep(4);
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// cause zeroing of idle time
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assertEquals("1", cache.get(1));
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sleep(4);
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// cause zeroing of idle time
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assertEquals("1", cache.get(1));
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sleep(4);
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// At least 12 seconds have passed, but the item should still be present.
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assertEquals("1", cache.get(1));
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sleep(10);
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// time-to-idle now exceeded without access
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assertNotEquals("1", cache.get(1));
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}
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private void sleep(int seconds)
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{
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try
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{
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Thread.sleep(seconds * 1000);
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}
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catch (InterruptedException error)
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{
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throw new RuntimeException(error);
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}
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}
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}
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