https://openjdk.java.net/ 
/*
 * Copyright (c) 2011, 2018, 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.
 In addition to file name suffixes, Mac OS X can use Finder attributes like file type and creator codes to identify and handle files. These codes are unique 4-byte identifiers. The file type is a string that describes the contents of a file. For example, the file type APPL identifies the file as an application and therefore executable. A file type of TEXT means that the file contains raw text. Any application that can read raw text can open a file of type TEXT. Applications that use proprietary file types might assign their files a proprietary file type code. 
 To identify the application that can handle a document, the Finder can look at the creator. For example, if a user double-clicks on a document with the ttxt creator, it opens up in Text Edit, the application registered with the ttxt creator code. Note that the creator 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 creator code for the file rather than the HTML editor's creator code. Double-clicking on the document then opens the appropriate browser rather than the HTML editor. 

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
Creator Code Registration site.

Since:1.4
/**
 * 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} and {@code creator} codes to
 * identify and handle files. These codes are unique 4-byte identifiers. The file {@code type} is a string that describes the
 * contents of a file. For example, the file type {@code APPL} identifies the file as an application and therefore
 * executable. A file type of {@code TEXT}  means that the file contains raw text. Any application that can read raw
 * text can open a file of type {@code TEXT}. Applications that use proprietary file types might assign their files a proprietary
 * file {@code type} code.
 * <p>
 * To identify the application that can handle a document, the Finder can look at the {@code creator}. For example, if a user
 * double-clicks on a document with the {@code ttxt creator}, it opens up in Text Edit, the application registered
 * with the {@code ttxt creator} code. Note that the {@code creator}
 * 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 for the file rather than
 * the HTML editor's {@code creator} 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(
            new java.security.PrivilegedAction<Void>() {
                public Void run() {
                    System.loadLibrary("osx");
                    return null;
                }
            });
    }

    
The default

Since:Java for Mac OS X 10.5 - 1.5
Since:Java for Mac OS X 10.5 Update 1 - 1.6
/**
     * 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 static final 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
/**
     * 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 static final 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
/**
     * 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 static final 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
/**
     * 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 static final 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
/**
     * 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 static final short kUserDomain = -32763;


        
Converts an OSType (e.g. "macs" from <CarbonCore/Folders.h>) into an int. 
Params:
  • type – the 4 character type to convert.
Returns: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
/**
         * Converts an OSType (e.g. "macs"
         * from {@literal <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 type and creator codes for a file or folder. 
Since:1.4
/**
         * Sets the file {@code type} and {@code creator} 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 type code for a file or folder. 
Since:1.4
/**
         * Sets the file {@code type} 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 creator code for a file or folder. 
Since:1.4
/**
         * Sets the file {@code creator} 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 type code for a file or folder. 
Since:1.4
/**
         * Obtains the file {@code type} 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 creator code for a file or folder. 
Since:1.4
/**
         * Obtains the file {@code creator} 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 root folder, there are multiple pref folders. If this method is called to find the pref folder, it will return the first one it finds, the user's preferences folder in ~/Library/Preferences. To explicitly locate a folder in a certain domain use findFolder(short domain, int folderType) or findFolder(short domain, int folderType, boolean createIfNeeded). 
Returns:the path to the folder searched for
Since:1.4
/**
         * 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} folder, there are multiple {@code pref}
         * folders. If this method is called to find the {@code pref} folder, it will return the first one it finds,
         * the user's preferences folder in {@code ~/Library/Preferences}. To explicitly locate a folder in a certain
         * domain use {@code findFolder(short domain, int folderType)} or
         * {@code findFolder(short domain, int folderType, boolean createIfNeeded)}.
         *
         * @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 findFolder(int folderType) except that the domain to look in can be specified. Valid values for domain include: 


user


The User domain contains resources specific to the user who is currently logged in


local


The Local domain contains resources shared by all users of the system but are not needed for the system
itself to run.


network


The Network domain contains resources shared by users of a local area network.


system


The System domain contains the operating system resources installed by Apple.




Returns:the path to the folder searched for
Since:1.4
/**
         * Locates a folder of a particular type, within a given domain. Similar to {@code findFolder(int folderType)}
         * except that the domain to look in can be specified. Valid values for {@code domain} 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 findFolder(int folderType) and findFolder(short domain, int folderType) except that it can create the folder if it does not already exist. 
Params:
  • createIfNeeded –  set to true, by setting to false the behavior will be the same as findFolder(short domain, int folderType, boolean createIfNeeded)
Returns:the path to the folder searched for
Since:1.4
/**
         * 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)} and
         * {@code findFolder(short domain, int folderType)} except that it can create the folder if it does not already exist.
         *
         * @param createIfNeeded
         *            set to {@code true}, by setting to {@code false} the behavior will be the
         *            same as {@code findFolder(short domain, int folderType, boolean createIfNeeded)}
         * @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 (http://) open in the default browser as set in the Internet pane of System Preferences. File (file://) and FTP URL's (ftp://) open in the Finder. Note that opening an FTP URL will prompt the user for where they want to save the downloaded file(s). 
Params:
  • 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
/**
         * Opens the path specified by a URL in the appropriate application for that URL. HTTP URL's ({@code http://})
         * open in the default browser as set in the Internet pane of System Preferences. File ({@code file://}) and
         * FTP URL's ({@code ftp://}) 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;

    
Returns:full pathname for the resource identified by a given name.
Since:1.4
/**
         * @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);
        }

        
Returns:full pathname for the resource identified by a given name and located in the specified bundle subdirectory.
Since:1.4
/**
         * @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.

Returns:full pathname for the resource identified by the given name and file extension and located in the specified bundle subdirectory.
Since:1.4
/**
         * 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.

Returns: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
/**
         * 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

Params:
  • file – the file
Throws:
Returns:returns true if the NSFileManager successfully moved the file to the Trash.
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
/**
         * Moves the specified file to the Trash
         *
         * @param file the 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) throw new FileNotFoundException();
                final String fileName = file.getAbsolutePath();

                final SecurityManager security = System.getSecurityManager();
                if (security != null) security.checkDelete(fileName);

                return _moveToTrash(fileName);
        }

        private static native boolean _moveToTrash(String fileName);

        
Reveals the specified file in the Finder

Params:
  • file – 
           the file to reveal
Throws:
Returns:returns true if the NSFileManager successfully revealed the file in the Finder.
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
/**
         * 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);
}