| /******************************************************************************* |
| * Copyright (c) 2006, 2015 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * James Blackburn (Broadcom Corp.) - ongoing development |
| *******************************************************************************/ |
| package org.eclipse.core.tests.internal.filesystem.wrapper; |
| |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import org.eclipse.core.filesystem.EFS; |
| import org.eclipse.core.filesystem.IFileStore; |
| import org.eclipse.core.filesystem.provider.FileSystem; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.core.tests.harness.CoreTest; |
| import org.eclipse.core.tests.resources.ResourceTest; |
| |
| /** |
| * A simple file system implementation that acts as a wrapper around the |
| * local file system. |
| * <p> |
| * Also allows tests to inject a custom FileStore template class (derived from |
| * {@link WrapperFileStore}). Tests can use {@link #setCustomFileStore(Class)} |
| * to override default {@link WrapperFileStore} behaviour. |
| * </p> |
| */ |
| public class WrapperFileSystem extends FileSystem { |
| protected static final IFileStore NULL_ROOT = EFS.getNullFileSystem().getStore(Path.ROOT); |
| |
| private static final String SCHEME_WRAPPED = "wrapped"; |
| |
| private static volatile WrapperFileSystem instance; |
| |
| /** Custom file-store wrapper */ |
| private static volatile Class<? extends WrapperFileStore> customFS = WrapperFileStore.class; |
| |
| public static URI getBasicURI(URI wrappedURI) { |
| Assert.isLegal(SCHEME_WRAPPED.equals(wrappedURI.getScheme())); |
| return URI.create(wrappedURI.getQuery()); |
| } |
| |
| public static synchronized WrapperFileSystem getInstance() { |
| if (instance != null) { |
| return instance; |
| } |
| return instance = new WrapperFileSystem(); |
| } |
| |
| /** |
| * Use fs as the WrapperFileStore to use in this filesystem. |
| * Allows tests to easily override existing IFileStore behaviour. |
| * By extending {@link WrapperFileStore} conditions difficult to simulate |
| * on the LocalFileSystem can be provoked. |
| * |
| * @param fs filestore, or null to use default {@link WrapperFileStore} |
| * based implementation. |
| */ |
| public static void setCustomFileStore(Class<? extends WrapperFileStore> fs) { |
| if (fs == null) { |
| customFS = WrapperFileStore.class; |
| } else { |
| customFS = fs; |
| } |
| } |
| |
| public static URI getWrappedURI(URI baseURI) { |
| try { |
| return new URI(SCHEME_WRAPPED, null, baseURI.getPath(), baseURI.toString(), null); |
| } catch (URISyntaxException e) { |
| throw new IllegalArgumentException(e.toString()); |
| } |
| } |
| |
| public WrapperFileSystem() { |
| instance = this; |
| } |
| |
| @Override |
| public IFileStore getStore(URI uri) { |
| Assert.isLegal(SCHEME_WRAPPED.equals(uri.getScheme())); |
| IFileStore baseStore; |
| try { |
| baseStore = EFS.getStore(getBasicURI(uri)); |
| } catch (CoreException e) { |
| CoreTest.log(ResourceTest.PI_RESOURCES_TESTS, e); |
| return NULL_ROOT; |
| } |
| return WrapperFileStore.newInstance(customFS, baseStore); |
| } |
| } |