jdk/src/macosx/classes/com/apple/eio/FileManager.java
changeset 12047 320a714614e9
child 12559 9456ceada8b1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/macosx/classes/com/apple/eio/FileManager.java	Tue Mar 06 20:34:38 2012 +0000
@@ -0,0 +1,393 @@
+/*
+ * Copyright (c) 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.  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 com.apple.eio;
+
+import java.io.*;
+
+/**
+ * Provides functionality to query and modify Mac-specific file attributes. The methods in this class are based on Finder
+ * attributes. These attributes in turn are dependent on HFS and HFS+ file systems. As such, it is important to recognize
+ * their limitation when writing code that must function well across multiple platforms.<p>
+ *
+ * In addition to file name suffixes, Mac OS X can use Finder attributes like file <code>type</code> and <code>creator</code> codes to
+ * identify and handle files. These codes are unique 4-byte identifiers. The file <code>type</code> is a string that describes the
+ * contents of a file. For example, the file type <code>APPL</code> identifies the file as an application and therefore
+ * executable. A file type of <code>TEXT</code>  means that the file contains raw text. Any application that can read raw
+ * text can open a file of type <code>TEXT</code>. Applications that use proprietary file types might assign their files a proprietary
+ * file <code>type</code> code.
+ * <p>
+ * To identify the application that can handle a document, the Finder can look at the <code>creator</code>. For example, if a user
+ * double-clicks on a document with the <code>ttxt</code> <code>creator</code>, it opens up in Text Edit, the application registered
+ * with the <code>ttxt</code> <code>creator</code> code. Note that the <code>creator</code>
+ * code can be set to any application, not necessarily the application that created it. For example, if you
+ * use an editor to create an HTML document, you might want to assign a browser's <code>creator</code> code for the file rather than
+ * the HTML editor's <code>creator</code> code. Double-clicking on the document then opens the appropriate browser rather than the
+ *HTML editor.
+ *<p>
+ * If you plan to publicly distribute your application, you must register its creator and any proprietary file types with the Apple
+ * Developer Connection to avoid collisions with codes used by other developers. You can register a codes online at the
+ * <a target=_blank href=http://developer.apple.com/dev/cftype/>Creator Code Registration</a> site.
+ *
+ * @since 1.4
+ */
+public class FileManager {
+    static {
+        java.security.AccessController.doPrivileged((java.security.PrivilegedAction<?>)new sun.security.action.LoadLibraryAction("osx"));
+    }
+
+    /**
+     * The default
+     * @since Java for Mac OS X 10.5 - 1.5
+         * @since Java for Mac OS X 10.5 Update 1 - 1.6
+     */
+    public final static short kOnAppropriateDisk = -32767;
+    /**
+     * Read-only system hierarchy.
+     * @since Java for Mac OS X 10.5 - 1.5
+         * @since Java for Mac OS X 10.5 Update 1 - 1.6
+     */
+    public final static short kSystemDomain = -32766;
+    /**
+     * All users of a single machine have access to these resources.
+     * @since Java for Mac OS X 10.5 - 1.5
+         * @since Java for Mac OS X 10.5 Update 1 - 1.6
+     */
+    public final static short kLocalDomain = -32765;
+    /**
+     * All users configured to use a common network server has access to these resources.
+     * @since Java for Mac OS X 10.5 - 1.5
+         * @since Java for Mac OS X 10.5 Update 1 - 1.6
+     */
+    public final static short kNetworkDomain = -32764;
+    /**
+     * Read/write. Resources that are private to the user.
+     * @since Java for Mac OS X 10.5 - 1.5
+         * @since Java for Mac OS X 10.5 Update 1 - 1.6
+     */
+    public final static short kUserDomain = -32763;
+
+
+        /**
+         * Converts an OSType (e.g. "macs" from <CarbonCore/Folders.h>) into an int.
+         *
+         * @param type the 4 character type to convert.
+         * @return an int representing the 4 character value
+         *
+         * @since Java for Mac OS X 10.5 - 1.5
+         * @since Java for Mac OS X 10.5 Update 1 - 1.6
+         */
+    @SuppressWarnings("deprecation")
+        public static int OSTypeToInt(String type) {
+        int result = 0;
+
+                byte b[] = { (byte) 0, (byte) 0, (byte) 0, (byte) 0 };
+                int len = type.length();
+                if (len > 0) {
+                        if (len > 4) len = 4;
+                        type.getBytes(0, len, b, 4 - len);
+                }
+
+                for (int i = 0;  i < len;  i++)  {
+                        if (i > 0) result <<= 8;
+                        result |= (b[i] & 0xff);
+                }
+
+        return result;
+    }
+
+    /**
+         * Sets the file <code>type</code> and <code>creator</code> codes for a file or folder.
+         *
+         * @since 1.4
+         */
+    public static void setFileTypeAndCreator(String filename, int type, int creator) throws IOException {
+        SecurityManager security = System.getSecurityManager();
+        if (security != null) {
+            security.checkWrite(filename);
+        }
+        _setFileTypeAndCreator(filename, type, creator);
+    }
+        private static native void _setFileTypeAndCreator(String filename, int type, int creator) throws IOException;
+
+    /**
+         * Sets the file <code>type</code> code for a file or folder.
+         *
+         * @since 1.4
+         */
+    public static void setFileType(String filename, int type) throws IOException {
+        SecurityManager security = System.getSecurityManager();
+        if (security != null) {
+            security.checkWrite(filename);
+        }
+        _setFileType(filename, type);
+        }
+    private static native void _setFileType(String filename, int type) throws IOException;
+
+    /**
+         * Sets the file <code>creator</code> code for a file or folder.
+         *
+         * @since 1.4
+         */
+    public static void setFileCreator(String filename, int creator) throws IOException {
+        SecurityManager security = System.getSecurityManager();
+        if (security != null) {
+            security.checkWrite(filename);
+        }
+        _setFileCreator(filename, creator);
+    }
+    private static native void _setFileCreator(String filename, int creator) throws IOException;
+
+    /**
+         * Obtains the file <code>type</code> code for a file or folder.
+         *
+         * @since 1.4
+         */
+    public static int getFileType(String filename) throws IOException {
+        SecurityManager security = System.getSecurityManager();
+        if (security != null) {
+            security.checkRead(filename);
+        }
+        return _getFileType(filename);
+    }
+    private static native int _getFileType(String filename) throws IOException;
+
+    /**
+         * Obtains the file <code>creator</code> code for a file or folder.
+         *
+         * @since 1.4
+         */
+    public static int getFileCreator(String filename) throws IOException {
+        SecurityManager security = System.getSecurityManager();
+        if (security != null) {
+            security.checkRead(filename);
+        }
+        return _getFileCreator(filename);
+    }
+    private static native int _getFileCreator(String filename) throws IOException;
+
+
+    /**
+         * Locates a folder of a particular type. Mac OS X recognizes certain specific folders that have distinct purposes.
+         * For example, the user's desktop or temporary folder. These folders have corresponding codes. Given one of these codes,
+         * this method returns the path to that particular folder. Certain folders of a given type may appear in more than
+         * one domain. For example, although there is only one <code>root</code> folder, there are multiple <code>pref</code>
+         * folders. If this method is called to find the <code>pref</code> folder, it will return the first one it finds,
+         * the user's preferences folder in <code>~/Library/Preferences</code>. To explicitly locate a folder in a certain
+         * domain use <code>findFolder(short domain, int folderType)</code> or <code>findFolder(short domain, int folderType,
+         * boolean createIfNeeded)</code>.
+         *
+         * @return the path to the folder searched for
+         *
+         * @since 1.4
+         */
+        public static String findFolder(int folderType) throws FileNotFoundException {
+                return findFolder(kOnAppropriateDisk, folderType);
+        }
+
+    /**
+         * Locates a folder of a particular type, within a given domain. Similar to <code>findFolder(int folderType)</code>
+         * except that the domain to look in can be specified. Valid values for <code>domain</code>include:
+         * <dl>
+         * <dt>user</dt>
+         * <dd>The User domain contains resources specific to the user who is currently logged in</dd>
+         * <dt>local</dt>
+         * <dd>The Local domain contains resources shared by all users of the system but are not needed for the system
+         * itself to run.</dd>
+         * <dt>network</dt>
+         * <dd>The Network domain contains resources shared by users of a local area network.</dd>
+         * <dt>system</dt>
+         * <dd>The System domain contains the operating system resources installed by Apple.</dd>
+         * </dl>
+         *
+         * @return the path to the folder searched for
+         *
+         * @since 1.4
+         */
+        public static String findFolder(short domain, int folderType) throws FileNotFoundException {
+                return findFolder(domain, folderType, false);
+        }
+
+    /**
+         * Locates a folder of a particular type within a given domain and optionally creating the folder if it does
+         * not exist. The behavior is similar to <code>findFolder(int folderType)</code> and
+         * <code>findFolder(short domain, int folderType)</code> except that it can create the folder if it does not already exist.
+         *
+         * @param createIfNeeded
+         *            set to <code>true</code>, by setting to <code>false</code> the behavior will be the
+         *            same as <code>findFolder(short domain, int folderType, boolean createIfNeeded)</code>
+         * @return the path to the folder searched for
+         *
+         * @since 1.4
+         */
+    public static String findFolder(short domain, int folderType, boolean createIfNeeded) throws FileNotFoundException {
+        final SecurityManager security = System.getSecurityManager();
+        if (security != null) {
+            security.checkPermission(new RuntimePermission("canExamineFileSystem"));
+        }
+
+        final String foundFolder = _findFolder(domain, folderType, createIfNeeded);
+        if (foundFolder == null) throw new FileNotFoundException("Can't find folder: " + Integer.toHexString(folderType));
+        return foundFolder;
+    }
+    private static native String _findFolder(short domain, int folderType, boolean createIfNeeded);
+
+
+    /**
+         * Opens the path specified by a URL in the appropriate application for that URL. HTTP URL's (<code>http://</code>)
+         * open in the default browser as set in the Internet pane of System Preferences. File (<code>file://</code>) and
+         * FTP URL's (<code>ftp://</code>) open in the Finder. Note that opening an FTP URL will prompt the user for where
+         * they want to save the downloaded file(s).
+         *
+         * @param url
+         *            the URL for the file you want to open, it can either be an HTTP, FTP, or file url
+         *
+         * @deprecated this functionality has been superseded by java.awt.Desktop.browse() and java.awt.Desktop.open()
+         *
+         * @since 1.4
+         */
+    @Deprecated
+    public static void openURL(String url) throws IOException {
+        SecurityManager security = System.getSecurityManager();
+        if (security != null) {
+            security.checkPermission(new RuntimePermission("canOpenURLs"));
+        }
+        _openURL(url);
+    }
+    private static native void _openURL(String url) throws IOException;
+
+    /**
+         * @return full pathname for the resource identified by a given name.
+         *
+         * @since 1.4
+         */
+        public static String getResource(String resourceName) throws FileNotFoundException {
+                return getResourceFromBundle(resourceName, null, null);
+        }
+
+        /**
+         * @return full pathname for the resource identified by a given name and located in the specified bundle subdirectory.
+         *
+         * @since 1.4
+         */
+        public static String getResource(String resourceName, String subDirName) throws FileNotFoundException {
+                return getResourceFromBundle(resourceName, subDirName, null);
+        }
+
+        /**
+         * Returns the full pathname for the resource identified by the given name and file extension
+         * and located in the specified bundle subdirectory.
+         *
+         * If extension is an empty string or null, the returned pathname is the first one encountered where the
+         * file name exactly matches name.
+         *
+         * If subpath is null, this method searches the top-level nonlocalized resource directory (typically Resources)
+         * and the top-level of any language-specific directories. For example, suppose you have a modern bundle and
+         * specify "Documentation" for the subpath parameter. This method would first look in the
+         * Contents/Resources/Documentation directory of the bundle, followed by the Documentation subdirectories of
+         * each language-specific .lproj directory. (The search order for the language-specific directories
+         * corresponds to the user's preferences.) This method does not recurse through any other subdirectories at
+         * any of these locations. For more details see the AppKit NSBundle documentation.
+         *
+         * @return full pathname for the resource identified by the given name and file extension and located in the specified bundle subdirectory.
+         *
+         * @since 1.4
+         */
+        public static String getResource(String resourceName, String subDirName, String type) throws FileNotFoundException {
+                return getResourceFromBundle(resourceName, subDirName, type);
+        }
+
+        private static native String getNativeResourceFromBundle(String resourceName, String subDirName, String type) throws FileNotFoundException;
+        private static String getResourceFromBundle(String resourceName, String subDirName, String type) throws FileNotFoundException {
+                final SecurityManager security = System.getSecurityManager();
+                if (security != null) security.checkPermission(new RuntimePermission("canReadBundle"));
+
+                final String resourceFromBundle = getNativeResourceFromBundle(resourceName, subDirName, type);
+                if (resourceFromBundle == null) throw new FileNotFoundException(resourceName);
+                return resourceFromBundle;
+        }
+
+        /**
+         * Obtains the path to the current application's NSBundle, may not
+         * return a valid path if Java was launched from the command line.
+         *
+         * @return full pathname of the NSBundle of the current application executable.
+         *
+         * @since Java for Mac OS X 10.5 Update 1 - 1.6
+         * @since Java for Mac OS X 10.5 Update 2 - 1.5
+         */
+        public static String getPathToApplicationBundle() {
+                SecurityManager security = System.getSecurityManager();
+                if (security != null) security.checkPermission(new RuntimePermission("canReadBundle"));
+                return getNativePathToApplicationBundle();
+        }
+
+        private static native String getNativePathToApplicationBundle();
+
+        /**
+         * Moves the specified file to the Trash
+         *
+         * @param file
+         * @return returns true if the NSFileManager successfully moved the file to the Trash.
+         * @throws FileNotFoundException
+         *
+         * @since Java for Mac OS X 10.6 Update 1 - 1.6
+         * @since Java for Mac OS X 10.5 Update 6 - 1.6, 1.5
+         */
+        public static boolean moveToTrash(final File file) throws FileNotFoundException {
+                if (file == null || !file.exists()) throw new FileNotFoundException();
+                final String fileName = file.getAbsolutePath();
+
+                final SecurityManager security = System.getSecurityManager();
+                if (security != null) security.checkWrite(fileName);
+
+                return _moveToTrash(fileName);
+        }
+
+        private static native boolean _moveToTrash(String fileName);
+
+        /**
+         * Reveals the specified file in the Finder
+         *
+         * @param file
+         *            the file to reveal
+         * @return returns true if the NSFileManager successfully revealed the file in the Finder.
+         * @throws FileNotFoundException
+         *
+         * @since Java for Mac OS X 10.6 Update 1 - 1.6
+         * @since Java for Mac OS X 10.5 Update 6 - 1.6, 1.5
+         */
+        public static boolean revealInFinder(final File file) throws FileNotFoundException {
+                if (file == null || !file.exists()) throw new FileNotFoundException();
+                final String fileName = file.getAbsolutePath();
+
+                final SecurityManager security = System.getSecurityManager();
+                if (security != null) security.checkRead(fileName);
+
+                return _revealInFinder(fileName);
+        }
+
+        private static native boolean _revealInFinder(String fileName);
+}