/*
* Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.File;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.FileAttribute;
import java.nio.file.attribute.FileAttributeView;
import java.nio.file.attribute.UserPrincipalLookupService;
import java.nio.file.spi.FileSystemProvider;
import java.nio.channels.SeekableByteChannel;
import java.net.URI;
import java.io.IOException;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
public class TestProvider extends FileSystemProvider {
private final FileSystemProvider defaultProvider;
private final TestFileSystem theFileSystem;
public TestProvider(FileSystemProvider defaultProvider) {
this.defaultProvider = defaultProvider;
FileSystem fs = defaultProvider.getFileSystem(URI.create("file:/"));
this.theFileSystem = new TestFileSystem(fs, this);
}
FileSystemProvider defaultProvider() {
return defaultProvider;
}
@Override
public String getScheme() {
return "file";
}
@Override
public FileSystem newFileSystem(URI uri, Map<String,?> env) throws IOException {
return defaultProvider.newFileSystem(uri, env);
}
@Override
public FileSystem getFileSystem(URI uri) {
return theFileSystem;
}
@Override
public Path getPath(URI uri) {
Path path = defaultProvider.getPath(uri);
return theFileSystem.wrap(path);
}
@Override
public void setAttribute(Path file, String attribute, Object value,
LinkOption... options)
throws IOException
{
throw new ReadOnlyFileSystemException();
}
@Override
public Map<String,Object> readAttributes(Path file, String attributes,
LinkOption... options)
throws IOException
{
Path delegate = theFileSystem.unwrap(file);
return defaultProvider.readAttributes(delegate, attributes, options);
}
@Override
public <A extends BasicFileAttributes> A readAttributes(Path file,
Class<A> type,
LinkOption... options)
throws IOException
{
Path delegate = theFileSystem.unwrap(file);
return defaultProvider.readAttributes(delegate, type, options);
}
@Override
public <V extends FileAttributeView> V getFileAttributeView(Path file,
Class<V> type,
LinkOption... options)
{
Path delegate = theFileSystem.unwrap(file);
return defaultProvider.getFileAttributeView(delegate, type, options);
}
@Override
public void delete(Path file) throws IOException {
throw new ReadOnlyFileSystemException();
}
@Override
public void createSymbolicLink(Path link, Path target, FileAttribute<?>... attrs)
throws IOException
{
throw new ReadOnlyFileSystemException();
}
@Override
public void createLink(Path link, Path existing) throws IOException {
throw new ReadOnlyFileSystemException();
}
@Override
public Path readSymbolicLink(Path link) throws IOException {
Path delegate = theFileSystem.unwrap(link);
Path target = defaultProvider.readSymbolicLink(delegate);
return theFileSystem.wrap(target);
}
@Override
public void copy(Path source, Path target, CopyOption... options)
throws IOException
{
throw new ReadOnlyFileSystemException();
}
@Override
public void move(Path source, Path target, CopyOption... options)
throws IOException
{
throw new ReadOnlyFileSystemException();
}
@Override
public DirectoryStream<Path> newDirectoryStream(Path dir,
DirectoryStream.Filter<? super Path> filter)
throws IOException
{
throw new RuntimeException("not implemented");
}
@Override
public void createDirectory(Path dir, FileAttribute<?>... attrs)
throws IOException
{
throw new ReadOnlyFileSystemException();
}
@Override
public SeekableByteChannel newByteChannel(Path file,
Set<? extends OpenOption> options,
FileAttribute<?>... attrs)
throws IOException
{
if (options.contains(StandardOpenOption.READ) && options.size() == 1) {
Path delegate = theFileSystem.unwrap(file);
options = Collections.singleton(StandardOpenOption.READ);
return defaultProvider.newByteChannel(delegate, options, attrs);
}
throw new RuntimeException("not implemented");
}
@Override
public boolean isHidden(Path file) throws IOException {
throw new ReadOnlyFileSystemException();
}
@Override
public FileStore getFileStore(Path file) throws IOException {
throw new RuntimeException("not implemented");
}
@Override
public boolean isSameFile(Path file, Path other) throws IOException {
throw new RuntimeException("not implemented");
}
@Override
public void checkAccess(Path file, AccessMode... modes)
throws IOException
{
throw new RuntimeException("not implemented");
}
static class TestFileSystem extends FileSystem {
private final FileSystem delegate;
private final TestProvider provider;
TestFileSystem(FileSystem delegate, TestProvider provider) {
this.delegate = delegate;
this.provider = provider;
}
Path wrap(Path path) {
return (path != null) ? new TestPath(this, path) : null;
}
Path unwrap(Path wrapper) {
if (wrapper == null)
throw new NullPointerException();
if (!(wrapper instanceof TestPath))
throw new ProviderMismatchException();
return ((TestPath)wrapper).unwrap();
}
@Override
public FileSystemProvider provider() {
return provider;
}
@Override
public void close() throws IOException {
throw new RuntimeException("not implemented");
}
@Override
public boolean isOpen() {
return true;
}
@Override
public boolean isReadOnly() {
return true;
}
@Override
public String getSeparator() {
return delegate.getSeparator();
}
@Override
public Iterable<Path> getRootDirectories() {
throw new RuntimeException("not implemented");
}
@Override
public Iterable<FileStore> getFileStores() {
throw new RuntimeException("not implemented");
}
@Override
public Set<String> supportedFileAttributeViews() {
return delegate.supportedFileAttributeViews();
}
@Override
public Path getPath(String first, String... more) {
Path path = delegate.getPath(first, more);
return wrap(path);
}
@Override
public PathMatcher getPathMatcher(String syntaxAndPattern) {
return delegate.getPathMatcher(syntaxAndPattern);
}
@Override
public UserPrincipalLookupService getUserPrincipalLookupService() {
return delegate.getUserPrincipalLookupService();
}
@Override
public WatchService newWatchService() throws IOException {
throw new UnsupportedOperationException();
}
}
static class TestPath implements Path {
private final TestFileSystem fs;
private final Path delegate;
TestPath(TestFileSystem fs, Path delegate) {
this.fs = fs;
this.delegate = delegate;
}
Path unwrap() {
return delegate;
}
@Override
public FileSystem getFileSystem() {
return fs;
}
@Override
public boolean isAbsolute() {
return delegate.isAbsolute();
}
@Override
public Path getRoot() {
return fs.wrap(delegate.getRoot());
}
@Override
public Path getParent() {
return fs.wrap(delegate.getParent());
}
@Override
public int getNameCount() {
return delegate.getNameCount();
}
@Override
public Path getFileName() {
return fs.wrap(delegate.getFileName());
}
@Override
public Path getName(int index) {
return fs.wrap(delegate.getName(index));
}
@Override
public Path subpath(int beginIndex, int endIndex) {
return fs.wrap(delegate.subpath(beginIndex, endIndex));
}
@Override
public boolean startsWith(Path other) {
return delegate.startsWith(fs.unwrap(other));
}
@Override
public boolean startsWith(String other) {
return delegate.startsWith(other);
}
@Override
public boolean endsWith(Path other) {
return delegate.endsWith(fs.unwrap(other));
}
@Override
public boolean endsWith(String other) {
return delegate.endsWith(other);
}
@Override
public Path normalize() {
return fs.wrap(delegate.normalize());
}
@Override
public Path resolve(Path other) {
return fs.wrap(delegate.resolve(fs.unwrap(other)));
}
@Override
public Path resolve(String other) {
return fs.wrap(delegate.resolve(other));
}
@Override
public Path resolveSibling(Path other) {
return fs.wrap(delegate.resolveSibling(fs.unwrap(other)));
}
@Override
public Path resolveSibling(String other) {
return fs.wrap(delegate.resolveSibling(other));
}
@Override
public Path relativize(Path other) {
return fs.wrap(delegate.relativize(fs.unwrap(other)));
}
@Override
public boolean equals(Object other) {
if (!(other instanceof TestPath))
return false;
return delegate.equals(fs.unwrap((TestPath) other));
}
@Override
public int hashCode() {
return delegate.hashCode();
}
@Override
public String toString() {
return delegate.toString();
}
@Override
public URI toUri() {
String ssp = delegate.toUri().getSchemeSpecificPart();
return URI.create(fs.provider().getScheme() + ":" + ssp);
}
@Override
public Path toAbsolutePath() {
return fs.wrap(delegate.toAbsolutePath());
}
@Override
public Path toRealPath(LinkOption... options) throws IOException {
return fs.wrap(delegate.toRealPath(options));
}
@Override
public File toFile() {
return delegate.toFile();
}
@Override
public Iterator<Path> iterator() {
final Iterator<Path> itr = delegate.iterator();
return new Iterator<Path>() {
@Override
public boolean hasNext() {
return itr.hasNext();
}
@Override
public Path next() {
return fs.wrap(itr.next());
}
@Override
public void remove() {
itr.remove();
}
};
}
@Override
public int compareTo(Path other) {
return delegate.compareTo(fs.unwrap(other));
}
@Override
public WatchKey register(WatchService watcher,
WatchEvent.Kind<?>[] events,
WatchEvent.Modifier... modifiers)
{
throw new UnsupportedOperationException();
}
@Override
public WatchKey register(WatchService watcher,
WatchEvent.Kind<?>... events)
{
throw new UnsupportedOperationException();
}
}
}