| /* |
| * 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.provider.temp; |
| |
| import java.io.File; |
| import java.util.Collection; |
| |
| import org.apache.commons.vfs2.Capability; |
| import org.apache.commons.vfs2.FileName; |
| import org.apache.commons.vfs2.FileObject; |
| import org.apache.commons.vfs2.FileSystem; |
| import org.apache.commons.vfs2.FileSystemException; |
| import org.apache.commons.vfs2.FileSystemOptions; |
| import org.apache.commons.vfs2.provider.AbstractFileProvider; |
| import org.apache.commons.vfs2.provider.FileProvider; |
| import org.apache.commons.vfs2.provider.UriParser; |
| import org.apache.commons.vfs2.provider.local.DefaultLocalFileProvider; |
| import org.apache.commons.vfs2.provider.local.LocalFileSystem; |
| |
| /** |
| * A provider for temporary files. |
| */ |
| public class TemporaryFileProvider |
| extends AbstractFileProvider |
| implements FileProvider, Comparable<Object> |
| { |
| private File rootFile; |
| |
| /* |
| private final static FileName tmpFileName = new AbstractFileName("tmp", "/") |
| { |
| protected FileName createName(String absPath) |
| { |
| return null; |
| } |
| |
| protected void appendRootUri(StringBuffer buffer) |
| { |
| } |
| }; |
| */ |
| |
| public TemporaryFileProvider(final File rootFile) |
| { |
| this(); |
| |
| this.rootFile = rootFile; |
| } |
| |
| public TemporaryFileProvider() |
| { |
| super(); |
| } |
| |
| @Override |
| public int compareTo(final Object o) |
| { |
| final int h1 = hashCode(); |
| final int h2 = o.hashCode(); |
| if (h1 < h2) |
| { |
| return -1; |
| } |
| if (h1 > h2) |
| { |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * Locates a file object, by absolute URI. |
| * @param baseFile The base FileObject. |
| * @param uri The URI of the file to be located. |
| * @param properties FileSystemOptions to use to locate or create the file. |
| * @return The FileObject. |
| * @throws FileSystemException if an error occurs. |
| */ |
| @Override |
| public synchronized FileObject findFile(final FileObject baseFile, final String uri, |
| final FileSystemOptions properties) |
| throws FileSystemException |
| { |
| // Parse the name |
| final StringBuilder buffer = new StringBuilder(uri); |
| final String scheme = UriParser.extractScheme(uri, buffer); |
| UriParser.fixSeparators(buffer); |
| UriParser.normalisePath(buffer); |
| final String path = buffer.toString(); |
| |
| // Create the temp file system if it does not exist |
| // FileSystem filesystem = findFileSystem( this, (Properties) null); |
| FileSystem filesystem = findFileSystem(this, properties); |
| if (filesystem == null) |
| { |
| if (rootFile == null) |
| { |
| rootFile = getContext().getTemporaryFileStore().allocateFile("tempfs"); |
| } |
| final FileName rootName = |
| getContext().parseURI(scheme + ":" + FileName.ROOT_PATH); |
| // final FileName rootName = |
| // new LocalFileName(scheme, scheme + ":", FileName.ROOT_PATH); |
| filesystem = new LocalFileSystem(rootName, rootFile.getAbsolutePath(), properties); |
| addFileSystem(this, filesystem); |
| } |
| |
| // Find the file |
| return filesystem.resolveFile(path); |
| } |
| |
| @Override |
| public Collection<Capability> getCapabilities() |
| { |
| return DefaultLocalFileProvider.capabilities; |
| } |
| } |