| /******************************************************************************* |
| * Copyright (c) 2010, 2016 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 |
| * Sergey Prigogin (Google) - ongoing development |
| *******************************************************************************/ |
| package org.eclipse.core.internal.filesystem.local; |
| |
| import java.nio.file.FileSystems; |
| import java.util.Set; |
| import org.eclipse.core.filesystem.IFileInfo; |
| import org.eclipse.core.filesystem.provider.FileInfo; |
| import org.eclipse.core.internal.filesystem.local.nio.*; |
| import org.eclipse.core.internal.filesystem.local.unix.UnixFileHandler; |
| import org.eclipse.core.internal.filesystem.local.unix.UnixFileNatives; |
| |
| /** |
| * Dispatches methods backed by native code to the appropriate platform specific |
| * implementation depending on a library provided by a fragment. Failing this it tries |
| * to use Java 7 NIO/2 API's. |
| * <p> |
| * Use of native libraries can be disabled by adding -Declipse.filesystem.useNatives=false to VM |
| * arguments. |
| * <p> |
| * Please notice that the native implementation is significantly faster than the non-native one. |
| * The BenchFileStore test runs 3.1 times faster on Linux with the native code than without it. |
| */ |
| public class LocalFileNativesManager { |
| private static NativeHandler HANDLER; |
| private static boolean USING_NATIVES; |
| |
| static { |
| boolean nativesAllowed = Boolean.valueOf(System.getProperty("eclipse.filesystem.useNatives", "true")).booleanValue(); //$NON-NLS-1$ //$NON-NLS-2$ |
| if (nativesAllowed && UnixFileNatives.isUsingNatives()) { |
| HANDLER = new UnixFileHandler(); |
| USING_NATIVES = true; |
| } else if (nativesAllowed && LocalFileNatives.isUsingNatives()) { |
| HANDLER = new LocalFileHandler(); |
| USING_NATIVES = true; |
| } else { |
| Set<String> views = FileSystems.getDefault().supportedFileAttributeViews(); |
| if (views.contains("posix")) { //$NON-NLS-1$ |
| HANDLER = new PosixHandler(); |
| } else if (views.contains("dos")) { //$NON-NLS-1$ |
| HANDLER = new DosHandler(); |
| } else { |
| HANDLER = new DefaultHandler(); |
| } |
| } |
| } |
| |
| public static int getSupportedAttributes() { |
| return HANDLER.getSupportedAttributes(); |
| } |
| |
| public static FileInfo fetchFileInfo(String fileName) { |
| return HANDLER.fetchFileInfo(fileName); |
| } |
| |
| public static boolean putFileInfo(String fileName, IFileInfo info, int options) { |
| return HANDLER.putFileInfo(fileName, info, options); |
| } |
| |
| public static boolean isUsingNatives() { |
| return USING_NATIVES; |
| } |
| } |