Java tutorial
/** * Licensed to Apereo under one or more contributor license * agreements. See the NOTICE file distributed with this work * for additional information regarding copyright ownership. * Apereo 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 the following location: * * 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.apereo.portal.utils.cache; import static org.easymock.EasyMock.anyLong; import static org.easymock.EasyMock.anyObject; import static org.easymock.EasyMock.createMock; import static org.easymock.EasyMock.expect; import static org.easymock.EasyMock.expectLastCall; import static org.easymock.EasyMock.replay; import static org.easymock.EasyMock.verify; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertTrue; import java.io.File; import java.io.FileOutputStream; import java.io.FileReader; import java.io.IOException; import java.io.InputStream; import java.util.Collections; import java.util.concurrent.TimeUnit; import net.sf.ehcache.Ehcache; import net.sf.ehcache.Element; import net.sf.ehcache.config.CacheConfiguration; import org.apache.commons.io.IOUtils; import org.apereo.portal.utils.cache.resource.CachedResource; import org.apereo.portal.utils.cache.resource.CachingResourceLoaderImpl; import org.apereo.portal.utils.cache.resource.LoadedResource; import org.apereo.portal.utils.cache.resource.LoadedResourceImpl; import org.apereo.portal.utils.cache.resource.Loader; import org.jasig.resourceserver.aggr.om.Included; import org.jasig.resourceserver.utils.aggr.ResourcesElementsProvider; import org.junit.BeforeClass; import org.junit.Test; import org.springframework.core.io.FileSystemResource; import org.springframework.core.io.Resource; /** * @author Eric Dalquist * @version $Revision$ */ public class CachingResourceLoaderImplTest { private static File doc1; @BeforeClass public static void setupResources() throws Exception { final InputStream doc1In = CachingResourceLoaderImplTest.class .getResourceAsStream("CachingResourceLoaderImplTest_doc1.txt"); doc1 = File.createTempFile("CachingResourceLoaderImplTest_doc1.", ".txt"); final FileOutputStream doc1Out = new FileOutputStream(doc1); IOUtils.copy(doc1In, doc1Out); IOUtils.closeQuietly(doc1In); IOUtils.closeQuietly(doc1Out); doc1.deleteOnExit(); } @Test public void testUncachedLoadNoDigest() throws Exception { final Resource doc1Resouce = new FileSystemResource(doc1); final CachingResourceLoaderImpl loader = new CachingResourceLoaderImpl(); final Ehcache cache = createMock(Ehcache.class); final ResourcesElementsProvider elementsProvider = createMock(ResourcesElementsProvider.class); expect(elementsProvider.getDefaultIncludedType()).andReturn(Included.AGGREGATED); expect(cache.getInternalContext()).andReturn(null).anyTimes(); expect(cache.getCacheConfiguration()).andReturn(new CacheConfiguration()); expect(cache.get(doc1Resouce)).andReturn(null); expect(cache.getQuiet(doc1Resouce)).andReturn(null); cache.put(anyObject(Element.class)); expectLastCall(); replay(cache, elementsProvider); loader.setResourceCache(cache); loader.setResourcesElementsProvider(elementsProvider); final CachedResource<String> cachedResource1 = loader.getResource(doc1Resouce, StringResourceBuilder.INSTANCE); verify(cache, elementsProvider); assertNotNull(cachedResource1); final String expected = IOUtils.toString(new FileReader(doc1)); assertEquals(expected, cachedResource1.getCachedResource()); } @Test public void testUncachedLoad() throws Exception { final Resource doc1Resouce = new FileSystemResource(doc1); final CachingResourceLoaderImpl loader = new CachingResourceLoaderImpl(); final Ehcache cache = createMock(Ehcache.class); final ResourcesElementsProvider elementsProvider = createMock(ResourcesElementsProvider.class); expect(elementsProvider.getDefaultIncludedType()).andReturn(Included.AGGREGATED); expect(cache.getInternalContext()).andReturn(null).anyTimes(); expect(cache.getCacheConfiguration()).andReturn(new CacheConfiguration()); expect(cache.get(doc1Resouce)).andReturn(null); expect(cache.getQuiet(doc1Resouce)).andReturn(null); cache.put(anyObject(Element.class)); expectLastCall(); replay(cache, elementsProvider); loader.setResourceCache(cache); loader.setResourcesElementsProvider(elementsProvider); final CachedResource<String> cachedResource1 = loader.getResource(doc1Resouce, StringResourceBuilder.INSTANCE); verify(cache, elementsProvider); assertNotNull(cachedResource1); final String expected = IOUtils.toString(new FileReader(doc1)); assertEquals(expected, cachedResource1.getCachedResource()); } @Test public void testCachedModifiedLoad() throws Exception { final Resource doc1Resouce = new FileSystemResource(doc1); final CachingResourceLoaderImpl loader = new CachingResourceLoaderImpl(); final Ehcache cache = createMock(Ehcache.class); final CachedResource<?> cachedResource = createMock(CachedResource.class); final ResourcesElementsProvider elementsProvider = createMock(ResourcesElementsProvider.class); expect(elementsProvider.getDefaultIncludedType()).andReturn(Included.AGGREGATED); expect(cache.getInternalContext()).andReturn(null).anyTimes(); expect(cache.getCacheConfiguration()).andReturn(new CacheConfiguration()); expect(cache.get(doc1Resouce)).andReturn(new Element(doc1Resouce, cachedResource)); final long lastModified = doc1.lastModified(); expect(cachedResource.getResource()).andReturn(doc1Resouce); expect(cachedResource.getLastCheckTime()).andReturn(lastModified - TimeUnit.MINUTES.toMillis(5)); expect(cachedResource.getLastLoadTime()).andReturn(lastModified - TimeUnit.MINUTES.toMillis(5)); cache.put(anyObject(Element.class)); expectLastCall(); replay(cache, cachedResource, elementsProvider); loader.setResourceCache(cache); loader.setResourcesElementsProvider(elementsProvider); final CachedResource<String> cachedResource1 = loader.getResource(doc1Resouce, StringResourceBuilder.INSTANCE); verify(cache, cachedResource, elementsProvider); assertNotNull(cachedResource1); final String expected = IOUtils.toString(new FileReader(doc1)); assertEquals(expected, cachedResource1.getCachedResource()); } @Test public void testCachedNotModified() throws Exception { final Resource doc1Resouce = new FileSystemResource(doc1); final CachingResourceLoaderImpl loader = new CachingResourceLoaderImpl(); final Ehcache cache = createMock(Ehcache.class); final CachedResource<?> cachedResource = createMock(CachedResource.class); final ResourcesElementsProvider elementsProvider = createMock(ResourcesElementsProvider.class); expect(elementsProvider.getDefaultIncludedType()).andReturn(Included.AGGREGATED); expect(cache.getInternalContext()).andReturn(null).anyTimes(); expect(cache.getCacheConfiguration()).andReturn(new CacheConfiguration()); final Element element = new Element("class path resource [CachingResourceLoaderImplTest_doc1.txt]", cachedResource); expect(cache.get(doc1Resouce)).andReturn(element); final long lastModified = doc1.lastModified(); expect(cachedResource.getResource()).andReturn(doc1Resouce); expect(cachedResource.getLastCheckTime()).andReturn(0L); expect(cachedResource.getLastLoadTime()).andReturn(lastModified + TimeUnit.MINUTES.toMillis(5)); expect(cachedResource.getAdditionalResources()).andReturn(Collections.EMPTY_MAP); cachedResource.setLastCheckTime(anyLong()); cache.put(element); expectLastCall(); replay(cache, cachedResource, elementsProvider); loader.setResourceCache(cache); loader.setResourcesElementsProvider(elementsProvider); final CachedResource<String> cachedResource1 = loader.getResource(doc1Resouce, StringResourceBuilder.INSTANCE); verify(cache, cachedResource, elementsProvider); assertNotNull(cachedResource1); assertTrue(cachedResource1 == cachedResource); } @Test public void testCachedWithinInterval() throws Exception { final Resource doc1Resouce = new FileSystemResource(doc1); final CachingResourceLoaderImpl loader = new CachingResourceLoaderImpl(); final Ehcache cache = createMock(Ehcache.class); final CachedResource<?> cachedResource = createMock(CachedResource.class); final ResourcesElementsProvider elementsProvider = createMock(ResourcesElementsProvider.class); expect(elementsProvider.getDefaultIncludedType()).andReturn(Included.AGGREGATED); expect(cache.getInternalContext()).andReturn(null).anyTimes(); expect(cache.getCacheConfiguration()).andReturn(new CacheConfiguration()); expect(cache.get(doc1Resouce)).andReturn(new Element(doc1Resouce, cachedResource)); expect(cachedResource.getLastCheckTime()).andReturn(System.currentTimeMillis()); replay(cache, cachedResource, elementsProvider); loader.setResourceCache(cache); loader.setResourcesElementsProvider(elementsProvider); final CachedResource<String> cachedResource1 = loader.getResource(doc1Resouce, StringResourceBuilder.INSTANCE); verify(cache, cachedResource, elementsProvider); assertNotNull(cachedResource1); assertTrue(cachedResource1 == cachedResource); } private static class StringResourceBuilder implements Loader<String> { public static final StringResourceBuilder INSTANCE = new StringResourceBuilder(); @Override public LoadedResource<String> loadResource(Resource resource) throws IOException { final InputStream stream = resource.getInputStream(); try { final String string = IOUtils.toString(stream); return new LoadedResourceImpl<String>(string); } finally { IOUtils.closeQuietly(stream); } } } }