| /* |
| * 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.vfs.provider.local; |
| |
| import org.apache.commons.vfs.FileName; |
| import org.apache.commons.vfs.FileObject; |
| import org.apache.commons.vfs.FileSystemException; |
| import org.apache.commons.vfs.FileType; |
| import org.apache.commons.vfs.RandomAccessContent; |
| import org.apache.commons.vfs.provider.AbstractFileObject; |
| import org.apache.commons.vfs.provider.UriParser; |
| import org.apache.commons.vfs.util.RandomAccessMode; |
| import org.apache.commons.vfs.util.FileObjectUtils; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.IOException; |
| |
| /** |
| * A file object implementation which uses direct file access. |
| * |
| * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a> |
| * @author Gary D. Gregory |
| * @version $Revision$ $Date$ |
| */ |
| public class LocalFile |
| extends AbstractFileObject |
| implements FileObject |
| { |
| private final String rootFile; |
| |
| private File file; |
| |
| /** |
| * Creates a non-root file. |
| */ |
| protected LocalFile(final LocalFileSystem fileSystem, |
| final String rootFile, |
| final FileName name) throws FileSystemException |
| { |
| super(name, fileSystem); |
| this.rootFile = rootFile; |
| } |
| |
| /** |
| * Returns the local file that this file object represents. |
| */ |
| protected File getLocalFile() |
| { |
| return file; |
| } |
| |
| /** |
| * Attaches this file object to its file resource. |
| */ |
| protected void doAttach() |
| throws Exception |
| { |
| if (file == null) |
| { |
| // Remove the "file:///" |
| // LocalFileName localFileName = (LocalFileName) getName(); |
| String fileName = rootFile + getName().getPathDecoded(); |
| // fileName = UriParser.decode(fileName); |
| file = new File(fileName); |
| } |
| } |
| |
| /** |
| * Returns the file's type. |
| */ |
| protected FileType doGetType() |
| throws Exception |
| { |
| // JDK BUG: 6192331 |
| // if (!file.exists()) |
| if (!file.exists() && file.length() < 1) |
| { |
| return FileType.IMAGINARY; |
| } |
| |
| if (file.isDirectory()) |
| { |
| return FileType.FOLDER; |
| } |
| |
| // In doubt, treat an existing file as file |
| // if (file.isFile()) |
| // { |
| return FileType.FILE; |
| // } |
| |
| // throw new FileSystemException("vfs.provider.local/get-type.error", file); |
| } |
| |
| /** |
| * Returns the children of the file. |
| */ |
| protected String[] doListChildren() |
| throws Exception |
| { |
| return UriParser.encode(file.list()); |
| } |
| |
| /** |
| * Deletes this file, and all children. |
| */ |
| protected void doDelete() |
| throws Exception |
| { |
| if (!file.delete()) |
| { |
| throw new FileSystemException("vfs.provider.local/delete-file.error", file); |
| } |
| } |
| |
| /** |
| * rename this file |
| */ |
| protected void doRename(final FileObject newfile) throws Exception |
| { |
| LocalFile newLocalFile = (LocalFile) FileObjectUtils.getAbstractFileObject(newfile); |
| |
| if (!file.renameTo(newLocalFile.getLocalFile())) |
| { |
| throw new FileSystemException("vfs.provider.local/rename-file.error", |
| new String[]{file.toString(), newfile.toString()}); |
| } |
| } |
| |
| /** |
| * Creates this folder. |
| */ |
| protected void doCreateFolder() |
| throws Exception |
| { |
| if (!file.mkdirs()) |
| { |
| throw new FileSystemException("vfs.provider.local/create-folder.error", file); |
| } |
| } |
| |
| /** |
| * Determines if this file can be written to. |
| */ |
| protected boolean doIsWriteable() throws FileSystemException |
| { |
| return file.canWrite(); |
| } |
| |
| /** |
| * Determines if this file is hidden. |
| */ |
| protected boolean doIsHidden() |
| { |
| return file.isHidden(); |
| } |
| |
| /** |
| * Determines if this file can be read. |
| */ |
| protected boolean doIsReadable() throws FileSystemException |
| { |
| return file.canRead(); |
| } |
| |
| /** |
| * Gets the last modified time of this file. |
| */ |
| protected long doGetLastModifiedTime() throws FileSystemException |
| { |
| return file.lastModified(); |
| } |
| |
| /** |
| * Sets the last modified time of this file. |
| */ |
| protected boolean doSetLastModTime(final long modtime) |
| throws FileSystemException |
| { |
| return file.setLastModified(modtime); |
| } |
| |
| /** |
| * Creates an input stream to read the content from. |
| */ |
| protected InputStream doGetInputStream() |
| throws Exception |
| { |
| return new FileInputStream(file); |
| } |
| |
| /** |
| * Creates an output stream to write the file content to. |
| */ |
| protected OutputStream doGetOutputStream(boolean bAppend) |
| throws Exception |
| { |
| return new FileOutputStream(file.getPath(), bAppend); |
| } |
| |
| /** |
| * Returns the size of the file content (in bytes). |
| */ |
| protected long doGetContentSize() |
| throws Exception |
| { |
| return file.length(); |
| } |
| |
| protected RandomAccessContent doGetRandomAccessContent(final RandomAccessMode mode) throws Exception |
| { |
| return new LocalFileRandomAccessContent(file, mode); |
| } |
| |
| protected boolean doIsSameFile(FileObject destFile) throws FileSystemException |
| { |
| if (!FileObjectUtils.isInstanceOf(destFile, LocalFile.class)) |
| { |
| return false; |
| } |
| |
| LocalFile destLocalFile = (LocalFile) FileObjectUtils.getAbstractFileObject(destFile); |
| if (!exists() || !destLocalFile.exists()) |
| { |
| return false; |
| } |
| |
| try |
| { |
| return file.getCanonicalPath().equals(destLocalFile.file.getCanonicalPath()); |
| } |
| catch (IOException e) |
| { |
| throw new FileSystemException(e); |
| } |
| |
| } |
| } |