test/java/nio/file/Path/PassThroughFileSystem.java - toolchain/jdk/jdk9_jdk - Git at Google

 /*
  * Copyright (c) 2010, 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.nio.file.*;
 import java.nio.file.attribute.*;
 import java.nio.file.spi.FileSystemProvider;
 import java.nio.channels.SeekableByteChannel;
 import java.net.URI;
 import java.util.*;
 import java.io.*;

 /**
  * A "pass through" file system implementation that passes through, or delegates,
  * everything to the default file system.
  */

 class PassThroughFileSystem extends FileSystem {
     private final FileSystemProvider provider;
     private final FileSystem delegate;

     PassThroughFileSystem(FileSystemProvider provider, FileSystem delegate) {
         this.provider = provider;
         this.delegate = delegate;
     }

     /**
      * Creates a new "pass through" file system. Useful for test environments
      * where the provider might not be deployed.
      */
     static FileSystem create() throws IOException {
         FileSystemProvider provider = new PassThroughProvider();
         Map<String,?> env = Collections.emptyMap();
         URI uri = URI.create("pass:///");
         return provider.newFileSystem(uri, env);
     }

     @Override
     public FileSystemProvider provider() {
         return provider;
     }

     @Override
     public void close() throws IOException {
         delegate.close();
     }

     @Override
     public boolean isOpen() {
         return delegate.isOpen();
     }

     @Override
     public boolean isReadOnly() {
         return delegate.isReadOnly();
     }

     @Override
     public String getSeparator() {
         return delegate.getSeparator();
     }

     @Override
     public Iterable<Path> getRootDirectories() {
         final Iterable<Path> roots = delegate.getRootDirectories();
         return new Iterable<Path>() {
             @Override
             public Iterator<Path> iterator() {
                 final Iterator<Path> itr = roots.iterator();
                 return new Iterator<Path>() {
                     @Override
                     public boolean hasNext() {
                         return itr.hasNext();
                     }
                     @Override
                     public Path next() {
                         return new PassThroughPath(delegate, itr.next());
                     }
                     @Override
                     public void remove() {
                         itr.remove();
                     }
                 };
             }
         };
     }

     @Override
     public Iterable<FileStore> getFileStores() {
         // assume that unwrapped objects aren't exposed
         return delegate.getFileStores();
     }

     @Override
     public Set<String> supportedFileAttributeViews() {
         // assume that unwrapped objects aren't exposed
         return delegate.supportedFileAttributeViews();
     }

     @Override
     public Path getPath(String path) {
         return new PassThroughPath(this, delegate.getPath(path));
     }

     @Override
     public PathMatcher getPathMatcher(String syntaxAndPattern) {
         final PathMatcher matcher = delegate.getPathMatcher(syntaxAndPattern);
         return new PathMatcher() {
             @Override
             public boolean matches(Path path) {
                 return matcher.matches(PassThroughPath.unwrap(path));
             }
         };
     }

     @Override
     public UserPrincipalLookupService getUserPrincipalLookupService() {
         // assume that unwrapped objects aren't exposed
         return delegate.getUserPrincipalLookupService();
     }

     @Override
     public WatchService newWatchService() throws IOException {
         // to keep it simple
         throw new UnsupportedOperationException();
     }

     static class PassThroughProvider extends FileSystemProvider {
         private static final String SCHEME = "pass";
         private static volatile PassThroughFileSystem delegate;

         public PassThroughProvider() { }

         @Override
         public String getScheme() {
             return SCHEME;
         }

         private void checkScheme(URI uri) {
             if (!uri.getScheme().equalsIgnoreCase(SCHEME))
                 throw new IllegalArgumentException();
         }

         private void checkUri(URI uri) {
             checkScheme(uri);
             if (!uri.getSchemeSpecificPart().equals("///"))
                 throw new IllegalArgumentException();
         }

         @Override
         public FileSystem newFileSystem(URI uri, Map<String,?> env)
             throws IOException
         {
             checkUri(uri);
             synchronized (PassThroughProvider.class) {
                 if (delegate != null)
                     throw new FileSystemAlreadyExistsException();
                 PassThroughFileSystem result =
                     new PassThroughFileSystem(this, FileSystems.getDefault());
                 delegate = result;
                 return result;
             }
         }

         @Override
         public FileSystem getFileSystem(URI uri) {
             checkUri(uri);
             FileSystem result = delegate;
             if (result == null)
                 throw new FileSystemNotFoundException();
             return result;
         }

         @Override
         public Path getPath(URI uri) {
             checkScheme(uri);
             if (delegate == null)
                 throw new FileSystemNotFoundException();
             uri = URI.create(delegate.provider().getScheme() + ":" +
                              uri.getSchemeSpecificPart());
             return new PassThroughPath(delegate, delegate.provider().getPath(uri));
         }
     }

     static class PassThroughPath extends Path {
         private final FileSystem fs;
         private final Path delegate;

         PassThroughPath(FileSystem fs, Path delegate) {
             this.fs = fs;
             this.delegate = delegate;
         }

         private Path wrap(Path path) {
             return (path != null) ? new PassThroughPath(fs, path) : null;
         }

         static Path unwrap(Path wrapper) {
             if (!(wrapper instanceof PassThroughPath))
                 throw new ProviderMismatchException();
             return ((PassThroughPath)wrapper).delegate;
         }

         @Override
         public FileSystem getFileSystem() {
             return fs;
         }

         @Override
         public boolean isAbsolute() {
             return delegate.isAbsolute();
         }

         @Override
         public Path getRoot() {
             return wrap(delegate.getRoot());
         }


         @Override
         public Path getName() {
             return wrap(delegate.getName());
         }

         @Override
         public Path getParent() {
             return wrap(delegate.getParent());
         }

         @Override
         public int getNameCount() {
             return delegate.getNameCount();
         }

         @Override
         public Path getName(int index) {
             return wrap(delegate.getName(index));
         }

         @Override
         public Path subpath(int beginIndex, int endIndex) {
             return wrap(delegate.subpath(beginIndex, endIndex));
         }

         @Override
         public boolean startsWith(Path other) {
             return delegate.startsWith(unwrap(other));
         }

         @Override
         public boolean endsWith(Path other) {
             return delegate.endsWith(unwrap(other));
         }

         @Override
         public Path normalize() {
             return wrap(delegate.normalize());
         }

         @Override
         public Path resolve(Path other) {
             return wrap(delegate.resolve(unwrap(other)));
         }

         @Override
         public Path resolve(String other) {
             return wrap(delegate.resolve(other));
         }

         @Override
         public Path relativize(Path other) {
             return wrap(delegate.relativize(unwrap(other)));
         }

         @Override
         public void setAttribute(String attribute, Object value, LinkOption... options)
             throws IOException
         {
             delegate.setAttribute(attribute, value, options);
         }

         @Override
         public Object getAttribute(String attribute, LinkOption... options)
             throws IOException
         {
             // assume that unwrapped objects aren't exposed
             return delegate.getAttribute(attribute, options);
         }

         @Override
         public Map<String,?> readAttributes(String attributes, LinkOption... options)
             throws IOException
         {
             // assume that unwrapped objects aren't exposed
             return delegate.readAttributes(attributes, options);
         }

         @Override
         public <V extends FileAttributeView> V getFileAttributeView(Class<V> type,
                                                                     LinkOption... options)
         {
             return delegate.getFileAttributeView(type, options);
         }

         @Override
         public void delete() throws IOException {
             delegate.delete();
         }

         @Override
         public void deleteIfExists() throws IOException {
             delegate.deleteIfExists();
         }

         @Override
         public Path createSymbolicLink(Path target, FileAttribute<?>... attrs)
             throws IOException
         {
             delegate.createSymbolicLink(unwrap(target), attrs);
             return this;
         }

         @Override
         public Path createLink(Path existing) throws IOException {
             delegate.createLink(unwrap(existing));
             return this;
         }

         @Override
         public Path readSymbolicLink() throws IOException {
             return wrap(delegate.readSymbolicLink());
         }

         @Override
         public URI toUri() {
             String ssp = delegate.toUri().getSchemeSpecificPart();
             return URI.create(fs.provider().getScheme() + ":" + ssp);
         }

         @Override
         public Path toAbsolutePath() {
             return wrap(delegate.toAbsolutePath());
         }

         @Override
         public Path toRealPath(boolean resolveLinks) throws IOException {
             return wrap(delegate.toRealPath(resolveLinks));
         }

         @Override
         public Path copyTo(Path target, CopyOption... options) throws IOException {
             return wrap(delegate.copyTo(unwrap(target), options));
         }

         @Override
         public Path moveTo(Path target, CopyOption... options) throws IOException {
             return wrap(delegate.copyTo(unwrap(target), options));
         }

         private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) {
             return new DirectoryStream<Path>() {
                 @Override
                 public Iterator<Path> iterator() {
                     final Iterator<Path> itr = stream.iterator();
                     return new Iterator<Path>() {
                         @Override
                         public boolean hasNext() {
                             return itr.hasNext();
                         }
                         @Override
                         public Path next() {
                             return wrap(itr.next());
                         }
                         @Override
                         public void remove() {
                             itr.remove();
                         }
                     };
                 }
                 @Override
                 public void close() throws IOException {
                     stream.close();
                 }
             };
         }

         @Override
         public DirectoryStream<Path> newDirectoryStream() throws IOException {
             return wrap(delegate.newDirectoryStream());
         }

         @Override
         public DirectoryStream<Path> newDirectoryStream(String glob)
             throws IOException
         {
             return wrap(delegate.newDirectoryStream(glob));
         }

         @Override
         public DirectoryStream<Path> newDirectoryStream(DirectoryStream.Filter<? super Path> filter)
             throws IOException
         {
             return wrap(delegate.newDirectoryStream(filter));
         }

         @Override
         public Path createFile(FileAttribute<?>... attrs) throws IOException {
             delegate.createFile(attrs);
             return this;
         }

         @Override
         public Path createDirectory(FileAttribute<?>... attrs)
             throws IOException
         {
             delegate.createDirectory(attrs);
             return this;
         }

         @Override
         public SeekableByteChannel newByteChannel(Set<? extends OpenOption> options,
                                                        FileAttribute<?>... attrs)
             throws IOException
         {
             return delegate.newByteChannel(options, attrs);
         }

         @Override
         public SeekableByteChannel newByteChannel(OpenOption... options)
             throws IOException
         {
             return delegate.newByteChannel(options);
         }

         @Override
         public InputStream newInputStream(OpenOption... options) throws IOException {
             return delegate.newInputStream();
         }

         @Override
         public OutputStream newOutputStream(OpenOption... options)
             throws IOException
         {
             return delegate.newOutputStream(options);
         }

         @Override
         public boolean isHidden() throws IOException {
             return delegate.isHidden();
         }

         @Override
         public void checkAccess(AccessMode... modes) throws IOException {
             delegate.checkAccess(modes);
         }

         @Override
         public boolean exists() {
             return delegate.exists();
         }

         @Override
         public boolean notExists() {
             return delegate.notExists();
         }

         @Override
         public FileStore getFileStore() throws IOException {
             return delegate.getFileStore();
         }

         @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();
         }


         @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 wrap(itr.next());
                 }
                 @Override
                 public void remove() {
                     itr.remove();
                 }
             };
         }

         @Override
         public int compareTo(Path other) {
             return delegate.compareTo(unwrap(other));
         }

         @Override
         public boolean isSameFile(Path other) throws IOException {
             return delegate.isSameFile(unwrap(other));
         }


         @Override
         public boolean equals(Object other) {
             if (!(other instanceof PassThroughPath))
                 return false;
             return delegate.equals(unwrap((PassThroughPath)other));
         }

         @Override
         public int hashCode() {
             return delegate.hashCode();
         }

         @Override
         public String toString() {
             return delegate.toString();
         }
     }
 }
	/*
	* Copyright (c) 2010, 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.nio.file.*;
	import java.nio.file.attribute.*;
	import java.nio.file.spi.FileSystemProvider;
	import java.nio.channels.SeekableByteChannel;
	import java.net.URI;
	import java.util.*;
	import java.io.*;

	/**
	* A "pass through" file system implementation that passes through, or delegates,
	* everything to the default file system.
	*/

	class PassThroughFileSystem extends FileSystem {
	private final FileSystemProvider provider;
	private final FileSystem delegate;

	PassThroughFileSystem(FileSystemProvider provider, FileSystem delegate) {
	this.provider = provider;
	this.delegate = delegate;
	}

	/**
	* Creates a new "pass through" file system. Useful for test environments
	* where the provider might not be deployed.
	*/
	static FileSystem create() throws IOException {
	FileSystemProvider provider = new PassThroughProvider();
	Map<String,?> env = Collections.emptyMap();
	URI uri = URI.create("pass:///");
	return provider.newFileSystem(uri, env);
	}

	@Override
	public FileSystemProvider provider() {
	return provider;
	}

	@Override
	public void close() throws IOException {
	delegate.close();
	}

	@Override
	public boolean isOpen() {
	return delegate.isOpen();
	}

	@Override
	public boolean isReadOnly() {
	return delegate.isReadOnly();
	}

	@Override
	public String getSeparator() {
	return delegate.getSeparator();
	}

	@Override
	public Iterable<Path> getRootDirectories() {
	final Iterable<Path> roots = delegate.getRootDirectories();
	return new Iterable<Path>() {
	@Override
	public Iterator<Path> iterator() {
	final Iterator<Path> itr = roots.iterator();
	return new Iterator<Path>() {
	@Override
	public boolean hasNext() {
	return itr.hasNext();
	}
	@Override
	public Path next() {
	return new PassThroughPath(delegate, itr.next());
	}
	@Override
	public void remove() {
	itr.remove();
	}
	};
	}
	};
	}

	@Override
	public Iterable<FileStore> getFileStores() {
	// assume that unwrapped objects aren't exposed
	return delegate.getFileStores();
	}

	@Override
	public Set<String> supportedFileAttributeViews() {
	// assume that unwrapped objects aren't exposed
	return delegate.supportedFileAttributeViews();
	}

	@Override
	public Path getPath(String path) {
	return new PassThroughPath(this, delegate.getPath(path));
	}

	@Override
	public PathMatcher getPathMatcher(String syntaxAndPattern) {
	final PathMatcher matcher = delegate.getPathMatcher(syntaxAndPattern);
	return new PathMatcher() {
	@Override
	public boolean matches(Path path) {
	return matcher.matches(PassThroughPath.unwrap(path));
	}
	};
	}

	@Override
	public UserPrincipalLookupService getUserPrincipalLookupService() {
	// assume that unwrapped objects aren't exposed
	return delegate.getUserPrincipalLookupService();
	}

	@Override
	public WatchService newWatchService() throws IOException {
	// to keep it simple
	throw new UnsupportedOperationException();
	}

	static class PassThroughProvider extends FileSystemProvider {
	private static final String SCHEME = "pass";
	private static volatile PassThroughFileSystem delegate;

	public PassThroughProvider() { }

	@Override
	public String getScheme() {
	return SCHEME;
	}

	private void checkScheme(URI uri) {
	if (!uri.getScheme().equalsIgnoreCase(SCHEME))
	throw new IllegalArgumentException();
	}

	private void checkUri(URI uri) {
	checkScheme(uri);
	if (!uri.getSchemeSpecificPart().equals("///"))
	throw new IllegalArgumentException();
	}

	@Override
	public FileSystem newFileSystem(URI uri, Map<String,?> env)
	throws IOException
	{
	checkUri(uri);
	synchronized (PassThroughProvider.class) {
	if (delegate != null)
	throw new FileSystemAlreadyExistsException();
	PassThroughFileSystem result =
	new PassThroughFileSystem(this, FileSystems.getDefault());
	delegate = result;
	return result;
	}
	}

	@Override
	public FileSystem getFileSystem(URI uri) {
	checkUri(uri);
	FileSystem result = delegate;
	if (result == null)
	throw new FileSystemNotFoundException();
	return result;
	}

	@Override
	public Path getPath(URI uri) {
	checkScheme(uri);
	if (delegate == null)
	throw new FileSystemNotFoundException();
	uri = URI.create(delegate.provider().getScheme() + ":" +
	uri.getSchemeSpecificPart());
	return new PassThroughPath(delegate, delegate.provider().getPath(uri));
	}
	}

	static class PassThroughPath extends Path {
	private final FileSystem fs;
	private final Path delegate;

	PassThroughPath(FileSystem fs, Path delegate) {
	this.fs = fs;
	this.delegate = delegate;
	}

	private Path wrap(Path path) {
	return (path != null) ? new PassThroughPath(fs, path) : null;
	}

	static Path unwrap(Path wrapper) {
	if (!(wrapper instanceof PassThroughPath))
	throw new ProviderMismatchException();
	return ((PassThroughPath)wrapper).delegate;
	}

	@Override
	public FileSystem getFileSystem() {
	return fs;
	}

	@Override
	public boolean isAbsolute() {
	return delegate.isAbsolute();
	}

	@Override
	public Path getRoot() {
	return wrap(delegate.getRoot());
	}


	@Override
	public Path getName() {
	return wrap(delegate.getName());
	}

	@Override
	public Path getParent() {
	return wrap(delegate.getParent());
	}

	@Override
	public int getNameCount() {
	return delegate.getNameCount();
	}

	@Override
	public Path getName(int index) {
	return wrap(delegate.getName(index));
	}

	@Override
	public Path subpath(int beginIndex, int endIndex) {
	return wrap(delegate.subpath(beginIndex, endIndex));
	}

	@Override
	public boolean startsWith(Path other) {
	return delegate.startsWith(unwrap(other));
	}

	@Override
	public boolean endsWith(Path other) {
	return delegate.endsWith(unwrap(other));
	}

	@Override
	public Path normalize() {
	return wrap(delegate.normalize());
	}

	@Override
	public Path resolve(Path other) {
	return wrap(delegate.resolve(unwrap(other)));
	}

	@Override
	public Path resolve(String other) {
	return wrap(delegate.resolve(other));
	}

	@Override
	public Path relativize(Path other) {
	return wrap(delegate.relativize(unwrap(other)));
	}

	@Override
	public void setAttribute(String attribute, Object value, LinkOption... options)
	throws IOException
	{
	delegate.setAttribute(attribute, value, options);
	}

	@Override
	public Object getAttribute(String attribute, LinkOption... options)
	throws IOException
	{
	// assume that unwrapped objects aren't exposed
	return delegate.getAttribute(attribute, options);
	}

	@Override
	public Map<String,?> readAttributes(String attributes, LinkOption... options)
	throws IOException
	{
	// assume that unwrapped objects aren't exposed
	return delegate.readAttributes(attributes, options);
	}

	@Override
	public <V extends FileAttributeView> V getFileAttributeView(Class<V> type,
	LinkOption... options)
	{
	return delegate.getFileAttributeView(type, options);
	}

	@Override
	public void delete() throws IOException {
	delegate.delete();
	}

	@Override
	public void deleteIfExists() throws IOException {
	delegate.deleteIfExists();
	}

	@Override
	public Path createSymbolicLink(Path target, FileAttribute<?>... attrs)
	throws IOException
	{
	delegate.createSymbolicLink(unwrap(target), attrs);
	return this;
	}

	@Override
	public Path createLink(Path existing) throws IOException {
	delegate.createLink(unwrap(existing));
	return this;
	}

	@Override
	public Path readSymbolicLink() throws IOException {
	return wrap(delegate.readSymbolicLink());
	}

	@Override
	public URI toUri() {
	String ssp = delegate.toUri().getSchemeSpecificPart();
	return URI.create(fs.provider().getScheme() + ":" + ssp);
	}

	@Override
	public Path toAbsolutePath() {
	return wrap(delegate.toAbsolutePath());
	}

	@Override
	public Path toRealPath(boolean resolveLinks) throws IOException {
	return wrap(delegate.toRealPath(resolveLinks));
	}

	@Override
	public Path copyTo(Path target, CopyOption... options) throws IOException {
	return wrap(delegate.copyTo(unwrap(target), options));
	}

	@Override
	public Path moveTo(Path target, CopyOption... options) throws IOException {
	return wrap(delegate.copyTo(unwrap(target), options));
	}

	private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) {
	return new DirectoryStream<Path>() {
	@Override
	public Iterator<Path> iterator() {
	final Iterator<Path> itr = stream.iterator();
	return new Iterator<Path>() {
	@Override
	public boolean hasNext() {
	return itr.hasNext();
	}
	@Override
	public Path next() {
	return wrap(itr.next());
	}
	@Override
	public void remove() {
	itr.remove();
	}
	};
	}
	@Override
	public void close() throws IOException {
	stream.close();
	}
	};
	}

	@Override
	public DirectoryStream<Path> newDirectoryStream() throws IOException {
	return wrap(delegate.newDirectoryStream());
	}

	@Override
	public DirectoryStream<Path> newDirectoryStream(String glob)
	throws IOException
	{
	return wrap(delegate.newDirectoryStream(glob));
	}

	@Override
	public DirectoryStream<Path> newDirectoryStream(DirectoryStream.Filter<? super Path> filter)
	throws IOException
	{
	return wrap(delegate.newDirectoryStream(filter));
	}

	@Override
	public Path createFile(FileAttribute<?>... attrs) throws IOException {
	delegate.createFile(attrs);
	return this;
	}

	@Override
	public Path createDirectory(FileAttribute<?>... attrs)
	throws IOException
	{
	delegate.createDirectory(attrs);
	return this;
	}

	@Override
	public SeekableByteChannel newByteChannel(Set<? extends OpenOption> options,
	FileAttribute<?>... attrs)
	throws IOException
	{
	return delegate.newByteChannel(options, attrs);
	}

	@Override
	public SeekableByteChannel newByteChannel(OpenOption... options)
	throws IOException
	{
	return delegate.newByteChannel(options);
	}

	@Override
	public InputStream newInputStream(OpenOption... options) throws IOException {
	return delegate.newInputStream();
	}

	@Override
	public OutputStream newOutputStream(OpenOption... options)
	throws IOException
	{
	return delegate.newOutputStream(options);
	}

	@Override
	public boolean isHidden() throws IOException {
	return delegate.isHidden();
	}

	@Override
	public void checkAccess(AccessMode... modes) throws IOException {
	delegate.checkAccess(modes);
	}

	@Override
	public boolean exists() {
	return delegate.exists();
	}

	@Override
	public boolean notExists() {
	return delegate.notExists();
	}

	@Override
	public FileStore getFileStore() throws IOException {
	return delegate.getFileStore();
	}

	@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();
	}


	@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 wrap(itr.next());
	}
	@Override
	public void remove() {
	itr.remove();
	}
	};
	}

	@Override
	public int compareTo(Path other) {
	return delegate.compareTo(unwrap(other));
	}

	@Override
	public boolean isSameFile(Path other) throws IOException {
	return delegate.isSameFile(unwrap(other));
	}


	@Override
	public boolean equals(Object other) {
	if (!(other instanceof PassThroughPath))
	return false;
	return delegate.equals(unwrap((PassThroughPath)other));
	}

	@Override
	public int hashCode() {
	return delegate.hashCode();
	}

	@Override
	public String toString() {
	return delegate.toString();
	}
	}
	}