| /******************************************************************************* |
| * Copyright (c) 2005, 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 |
| * Martin Oberhuber (Wind River) - [170317] add symbolic link support to API |
| * Martin Oberhuber (Wind River) - [183137] liblocalfile for solaris-sparc |
| * Martin Oberhuber (Wind River) - [184433] liblocalfile for Linux x86_64 |
| * Martin Oberhuber (Wind River) - [184534] get attributes from native lib |
| *******************************************************************************/ |
| package org.eclipse.core.internal.filesystem.local; |
| |
| import java.io.File; |
| import java.net.URI; |
| import org.eclipse.core.filesystem.*; |
| import org.eclipse.core.filesystem.provider.FileSystem; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.osgi.service.environment.Constants; |
| |
| /** |
| * File system provider for the "file" scheme. This file system provides access to |
| * the local file system that is available via java.io.File. |
| */ |
| public class LocalFileSystem extends FileSystem { |
| /** |
| * Cached constant indicating if the current OS is Mac OSX |
| */ |
| static final boolean MACOSX = LocalFileSystem.getOS().equals(Constants.OS_MACOSX); |
| |
| /** |
| * Whether the current file system is case sensitive |
| */ |
| private static final boolean caseSensitive = MACOSX ? false : new java.io.File("a").compareTo(new java.io.File("A")) != 0; //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| /** |
| * The attributes of this file system. The initial value of -1 is used |
| * to indicate that the attributes have not yet been computed. |
| */ |
| private int attributes = -1; |
| /** |
| * The singleton instance of this file system. |
| */ |
| private static IFileSystem instance; |
| |
| /** |
| * Returns the instance of this file system |
| * |
| * @return The instance of this file system. |
| */ |
| public static IFileSystem getInstance() { |
| return instance; |
| } |
| |
| /** |
| * Returns the current OS. This is equivalent to Platform.getOS(), but |
| * is tolerant of the platform runtime not being present. |
| */ |
| static String getOS() { |
| return System.getProperty("osgi.os", ""); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| /** |
| * Creates a new local file system. |
| */ |
| public LocalFileSystem() { |
| super(); |
| instance = this; |
| } |
| |
| @Override |
| public int attributes() { |
| if (attributes != -1) |
| return attributes; |
| attributes = 0; |
| |
| //try to query supported attributes from native lib impl |
| int nativeAttributes = LocalFileNativesManager.getSupportedAttributes(); |
| if (nativeAttributes >= 0) { |
| attributes = nativeAttributes; |
| return attributes; |
| } |
| |
| //fallback for older lib: compute attributes as known before |
| //all known platforms with native implementation support the read only flag |
| attributes |= EFS.ATTRIBUTE_READ_ONLY; |
| |
| // this must be kept in sync with functionality of previous libs not implementing nativeAttributes method |
| String os = getOS(); |
| String arch = System.getProperty("osgi.arch", ""); //$NON-NLS-1$ //$NON-NLS-2$ |
| if (os.equals(Constants.OS_WIN32)) |
| attributes |= EFS.ATTRIBUTE_ARCHIVE | EFS.ATTRIBUTE_HIDDEN; |
| else if (os.equals(Constants.OS_LINUX) || (os.equals(Constants.OS_SOLARIS) && arch.equals(Constants.ARCH_SPARC))) |
| attributes |= EFS.ATTRIBUTE_EXECUTABLE | EFS.ATTRIBUTE_SYMLINK | EFS.ATTRIBUTE_LINK_TARGET; |
| else if (os.equals(Constants.OS_MACOSX) || os.equals(Constants.OS_HPUX) || os.equals(Constants.OS_QNX)) |
| attributes |= EFS.ATTRIBUTE_EXECUTABLE; |
| return attributes; |
| } |
| |
| @Override |
| public boolean canDelete() { |
| return true; |
| } |
| |
| @Override |
| public boolean canWrite() { |
| return true; |
| } |
| |
| @Override |
| public IFileStore fromLocalFile(File file) { |
| return new LocalFile(file); |
| } |
| |
| @Override |
| public IFileStore getStore(IPath path) { |
| return new LocalFile(path.toFile()); |
| } |
| |
| @Override |
| public IFileStore getStore(URI uri) { |
| return new LocalFile(new File(uri.getSchemeSpecificPart())); |
| } |
| |
| @Override |
| public boolean isCaseSensitive() { |
| return caseSensitive; |
| } |
| } |