source: trunk/gli/src/org/greenstone/gatherer/file/FileSystem.java@ 8576

package org.greenstone.gatherer.file;

import java.io.File;
import javax.swing.filechooser.FileSystemView;
import org.greenstone.gatherer.DebugStream;
import org.greenstone.gatherer.Dictionary;
import org.greenstone.gatherer.util.ArrayTools;
import org.greenstone.gatherer.util.Utility;


public class FileSystem
{
    static public FileNode getLocalFilespaceNode(FileSystemModel model)
    {
    FileNode file_system_root = null;

    // Get all the available roots mounted on the filesystem
    File[] roots = File.listRoots();
    if (roots == null) {
        return null;
    }

    // If there is just one root use it as the tree root (Linux)
    if (roots.length == 1) {
        file_system_root = new FileNode(roots[0], Dictionary.get("Tree.Root"));
    }

    // Otherwise build a dummy node which has the roots as children
    else {
        file_system_root = new FileNode(Dictionary.get("Tree.Root"));
        file_system_root.setModel(model);

        // Sort the roots into alphabetical order
        ArrayTools.sort(roots);
        for (int i = 0; i < roots.length; i++) {
        // Only add root if it isn't a floppy drive
        if (!FileSystemView.getFileSystemView().isFloppyDrive(roots[i])) {
            file_system_root.insert(new FileNode(roots[i]));
        }
        }
    }

    return file_system_root;
    }


    static public FileNode getHomeFolderNode()
    {
    // Get the name of the OS we're running on
    String os_name = System.getProperty("os.name");
    if (os_name == null) {
        return null;
    }

    // Make sure we're running on a multiuser OS where the idea of a "user home" is valid
    DebugStream.println("Property os.name: " + os_name);
    String os_name_lc = os_name.toLowerCase();
    if (os_name_lc.equals("windows 95") || os_name_lc.equals("windows 98") || os_name_lc.equals("windows me")) {
        return null;
    }

    // Get the user's home folder
    String home_folder_str = System.getProperty("user.home");
    if (home_folder_str == null || home_folder_str.length() == 0) {
        return null;
    }

    // Generate a special mapping to the user home folder
    File home_folder = new File(home_folder_str);
    return new FileNode(home_folder, Dictionary.get("Tree.Home", home_folder.getName()));
    }


    static public FileNode getDownloadedFilesNode()
    {
    return new FileNode(Utility.getCacheDir(), "Downloaded Files");
    }
}