--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.base/share/classes/jdk/internal/jrtfs/JrtFileSystemProvider.java Wed Dec 03 14:22:58 2014 +0000
@@ -0,0 +1,272 @@
+/*
+ * Copyright (c) 2014, 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package jdk.internal.jrtfs;
+
+import java.io.*;
+import java.nio.channels.*;
+import java.nio.file.*;
+import java.nio.file.DirectoryStream.Filter;
+import java.nio.file.attribute.*;
+import java.nio.file.spi.FileSystemProvider;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+
+public final class JrtFileSystemProvider extends FileSystemProvider {
+ private volatile FileSystem theFileSystem;
+
+ public JrtFileSystemProvider() { }
+
+ @Override
+ public String getScheme() {
+ return "jrt";
+ }
+
+ /**
+ * Need FilePermission ${java.home}/-", "read" to create or get jrt:/
+ */
+ private void checkPermission() {
+ SecurityManager sm = System.getSecurityManager();
+ if (sm != null) {
+ String home = SystemImages.RUNTIME_HOME;
+ FilePermission perm =
+ new FilePermission(home + File.separator + "-", "read");
+ sm.checkPermission(perm);
+ }
+ }
+
+ private void checkUri(URI uri) {
+ if (!uri.getScheme().equalsIgnoreCase(getScheme()))
+ throw new IllegalArgumentException("URI does not match this provider");
+ if (uri.getAuthority() != null)
+ throw new IllegalArgumentException("Authority component present");
+ if (uri.getPath() == null)
+ throw new IllegalArgumentException("Path component is undefined");
+ if (!uri.getPath().equals("/"))
+ throw new IllegalArgumentException("Path component should be '/'");
+ if (uri.getQuery() != null)
+ throw new IllegalArgumentException("Query component present");
+ if (uri.getFragment() != null)
+ throw new IllegalArgumentException("Fragment component present");
+ }
+
+ @Override
+ public FileSystem newFileSystem(URI uri, Map<String, ?> env)
+ throws IOException
+ {
+ checkPermission();
+ checkUri(uri);
+ return new JrtFileSystem(this, env);
+ }
+
+ @Override
+ public Path getPath(URI uri) {
+ checkPermission();
+ if (!uri.getScheme().equalsIgnoreCase(getScheme()))
+ throw new IllegalArgumentException("URI does not match this provider");
+ if (uri.getAuthority() != null)
+ throw new IllegalArgumentException("Authority component present");
+ if (uri.getQuery() != null)
+ throw new IllegalArgumentException("Query component present");
+ if (uri.getFragment() != null)
+ throw new IllegalArgumentException("Fragment component present");
+ String path = uri.getPath();
+ if (path == null || path.charAt(0) != '/')
+ throw new IllegalArgumentException("Invalid path component");
+ return getTheFileSystem().getPath(path);
+ }
+
+ private FileSystem getTheFileSystem() {
+ checkPermission();
+ FileSystem fs = this.theFileSystem;
+ if (fs == null) {
+ synchronized (this) {
+ fs = this.theFileSystem;
+ if (fs == null) {
+ try {
+ this.theFileSystem = fs = new JrtFileSystem(this, null) {
+ @Override public void close() {
+ throw new UnsupportedOperationException();
+ }
+ };
+ } catch (IOException ioe) {
+ throw new InternalError(ioe);
+ }
+ }
+ }
+ }
+ return fs;
+ }
+
+ @Override
+ public FileSystem getFileSystem(URI uri) {
+ checkPermission();
+ checkUri(uri);
+ return getTheFileSystem();
+ }
+
+ // Checks that the given file is a JrtPath
+ static final JrtPath toJrtPath(Path path) {
+ if (path == null)
+ throw new NullPointerException();
+ if (!(path instanceof JrtPath))
+ throw new ProviderMismatchException();
+ return (JrtPath)path;
+ }
+
+ @Override
+ public void checkAccess(Path path, AccessMode... modes) throws IOException {
+ toJrtPath(path).checkAccess(modes);
+ }
+
+ @Override
+ public void copy(Path src, Path target, CopyOption... options)
+ throws IOException
+ {
+ toJrtPath(src).copy(toJrtPath(target), options);
+ }
+
+ @Override
+ public void createDirectory(Path path, FileAttribute<?>... attrs)
+ throws IOException
+ {
+ toJrtPath(path).createDirectory(attrs);
+ }
+
+ @Override
+ public final void delete(Path path) throws IOException {
+ toJrtPath(path).delete();
+ }
+
+ @Override
+ @SuppressWarnings("unchecked")
+ public <V extends FileAttributeView> V
+ getFileAttributeView(Path path, Class<V> type, LinkOption... options)
+ {
+ return JrtFileAttributeView.get(toJrtPath(path), type);
+ }
+
+ @Override
+ public FileStore getFileStore(Path path) throws IOException {
+ return toJrtPath(path).getFileStore();
+ }
+
+ @Override
+ public boolean isHidden(Path path) {
+ return toJrtPath(path).isHidden();
+ }
+
+ @Override
+ public boolean isSameFile(Path path, Path other) throws IOException {
+ return toJrtPath(path).isSameFile(other);
+ }
+
+ @Override
+ public void move(Path src, Path target, CopyOption... options)
+ throws IOException
+ {
+ toJrtPath(src).move(toJrtPath(target), options);
+ }
+
+ @Override
+ public AsynchronousFileChannel newAsynchronousFileChannel(Path path,
+ Set<? extends OpenOption> options,
+ ExecutorService exec,
+ FileAttribute<?>... attrs)
+ throws IOException
+ {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public SeekableByteChannel newByteChannel(Path path,
+ Set<? extends OpenOption> options,
+ FileAttribute<?>... attrs)
+ throws IOException
+ {
+ return toJrtPath(path).newByteChannel(options, attrs);
+ }
+
+ @Override
+ public DirectoryStream<Path> newDirectoryStream(
+ Path path, Filter<? super Path> filter) throws IOException
+ {
+ return toJrtPath(path).newDirectoryStream(filter);
+ }
+
+ @Override
+ public FileChannel newFileChannel(Path path,
+ Set<? extends OpenOption> options,
+ FileAttribute<?>... attrs)
+ throws IOException
+ {
+ return toJrtPath(path).newFileChannel(options, attrs);
+ }
+
+ @Override
+ public InputStream newInputStream(Path path, OpenOption... options)
+ throws IOException
+ {
+ return toJrtPath(path).newInputStream(options);
+ }
+
+ @Override
+ public OutputStream newOutputStream(Path path, OpenOption... options)
+ throws IOException
+ {
+ return toJrtPath(path).newOutputStream(options);
+ }
+
+ @Override
+ @SuppressWarnings("unchecked") // Cast to A
+ public <A extends BasicFileAttributes> A
+ readAttributes(Path path, Class<A> type, LinkOption... options)
+ throws IOException
+ {
+ if (type == BasicFileAttributes.class || type == JrtFileAttributes.class)
+ return (A)toJrtPath(path).getAttributes();
+ return null;
+ }
+
+ @Override
+ public Map<String, Object>
+ readAttributes(Path path, String attribute, LinkOption... options)
+ throws IOException
+ {
+ return toJrtPath(path).readAttributes(attribute, options);
+ }
+
+ @Override
+ public void setAttribute(Path path, String attribute,
+ Object value, LinkOption... options)
+ throws IOException
+ {
+ toJrtPath(path).setAttribute(attribute, value, options);
+ }
+}