| /* |
| * 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.commons.vfs2.test; |
| |
| import org.apache.commons.vfs2.CacheStrategy; |
| import org.apache.commons.vfs2.Capability; |
| import org.apache.commons.vfs2.FileObject; |
| import org.apache.commons.vfs2.Selectors; |
| import org.apache.commons.vfs2.impl.DefaultFileSystemManager; |
| import org.apache.commons.vfs2.impl.VirtualFileSystem; |
| import org.apache.commons.vfs2.provider.ram.RamFileObject; |
| import org.apache.commons.vfs2.util.FileObjectUtils; |
| |
| /** |
| * Test the cache stragey |
| */ |
| public class ProviderCacheStrategyTests |
| extends AbstractProviderTestCase |
| { |
| /** |
| * Returns the capabilities required by the tests of this test case. |
| */ |
| @Override |
| protected Capability[] getRequiredCaps() |
| { |
| return new Capability[] |
| { |
| Capability.CREATE, |
| Capability.GET_TYPE, |
| Capability.LIST_CHILDREN, |
| }; |
| } |
| |
| /** |
| * Test the manual cache strategy |
| */ |
| public void testManualCache() throws Exception |
| { |
| final FileObject scratchFolder = getWriteFolder(); |
| if (FileObjectUtils.isInstanceOf(getBaseFolder(), RamFileObject.class) || |
| scratchFolder.getFileSystem() instanceof VirtualFileSystem) |
| { |
| // cant check ram filesystem as every manager holds its own ram filesystem data |
| return; |
| } |
| |
| scratchFolder.delete(Selectors.EXCLUDE_SELF); |
| |
| final DefaultFileSystemManager fs = createManager(); |
| fs.setCacheStrategy(CacheStrategy.MANUAL); |
| fs.init(); |
| final FileObject foBase2 = getBaseTestFolder(fs); |
| |
| final FileObject cachedFolder = foBase2.resolveFile(scratchFolder.getName().getPath()); |
| |
| FileObject[] fos = cachedFolder.getChildren(); |
| assertContainsNot(fos, "file1.txt"); |
| |
| scratchFolder.resolveFile("file1.txt").createFile(); |
| |
| fos = cachedFolder.getChildren(); |
| assertContainsNot(fos, "file1.txt"); |
| |
| cachedFolder.refresh(); |
| fos = cachedFolder.getChildren(); |
| assertContains(fos, "file1.txt"); |
| } |
| |
| /** |
| * Test the on_resolve strategy |
| */ |
| public void testOnResolveCache() throws Exception |
| { |
| final FileObject scratchFolder = getWriteFolder(); |
| if (FileObjectUtils.isInstanceOf(getBaseFolder(), RamFileObject.class) || |
| scratchFolder.getFileSystem() instanceof VirtualFileSystem) |
| { |
| // cant check ram filesystem as every manager holds its own ram filesystem data |
| return; |
| } |
| |
| scratchFolder.delete(Selectors.EXCLUDE_SELF); |
| |
| final DefaultFileSystemManager fs = createManager(); |
| fs.setCacheStrategy(CacheStrategy.ON_RESOLVE); |
| fs.init(); |
| final FileObject foBase2 = getBaseTestFolder(fs); |
| |
| FileObject cachedFolder = foBase2.resolveFile(scratchFolder.getName().getPath()); |
| |
| FileObject[] fos = cachedFolder.getChildren(); |
| assertContainsNot(fos, "file1.txt"); |
| |
| scratchFolder.resolveFile("file1.txt").createFile(); |
| |
| fos = cachedFolder.getChildren(); |
| assertContainsNot(fos, "file1.txt"); |
| |
| cachedFolder = foBase2.resolveFile(scratchFolder.getName().getPath()); |
| fos = cachedFolder.getChildren(); |
| assertContains(fos, "file1.txt"); |
| } |
| |
| /** |
| * Test the on_call strategy |
| */ |
| public void testOnCallCache() throws Exception |
| { |
| final FileObject scratchFolder = getWriteFolder(); |
| if (FileObjectUtils.isInstanceOf(getBaseFolder(), RamFileObject.class) || |
| scratchFolder.getFileSystem() instanceof VirtualFileSystem) |
| { |
| // cant check ram filesystem as every manager holds its own ram filesystem data |
| return; |
| } |
| |
| scratchFolder.delete(Selectors.EXCLUDE_SELF); |
| |
| final DefaultFileSystemManager fs = createManager(); |
| fs.setCacheStrategy(CacheStrategy.ON_CALL); |
| fs.init(); |
| final FileObject foBase2 = getBaseTestFolder(fs); |
| |
| final FileObject cachedFolder = foBase2.resolveFile(scratchFolder.getName().getPath()); |
| |
| FileObject[] fos = cachedFolder.getChildren(); |
| assertContainsNot(fos, "file1.txt"); |
| |
| scratchFolder.resolveFile("file1.txt").createFile(); |
| |
| fos = cachedFolder.getChildren(); |
| assertContains(fos, "file1.txt"); |
| } |
| |
| public void assertContainsNot(final FileObject[] fos, final String string) |
| { |
| for (final FileObject fo : fos) |
| { |
| if (string.equals(fo.getName().getBaseName())) |
| { |
| fail(string + " should not be seen"); |
| } |
| } |
| } |
| |
| public void assertContains(final FileObject[] fos, final String string) |
| { |
| for (final FileObject fo : fos) |
| { |
| if (string.equals(fo.getName().getBaseName())) |
| { |
| return; |
| } |
| } |
| |
| fail(string + " should be seen"); |
| } |
| } |