source: trunk/gli/src/org/greenstone/gatherer/file/FileSystem.java@ 10007

package org.greenstone.gatherer.file;

import java.io.File;
import org.greenstone.gatherer.DebugStream;
import org.greenstone.gatherer.Dictionary;
import org.greenstone.gatherer.util.Utility;


public class FileSystem
{
    static public WorkspaceTreeNode getLocalFilespaceNode(FileSystemModel model)
    {
    // 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 (Unix)
    if (roots.length == 1) {
        return new WorkspaceTreeNode(roots[0], Dictionary.get("Tree.Root"));
    }

    // Otherwise build a dummy node which has the roots as children (Windows)
    else {
        return new WorkspaceTreeNode(null, Dictionary.get("Tree.Root"));
    }
    }


    static public WorkspaceTreeNode 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 WorkspaceTreeNode(home_folder, Dictionary.get("Tree.Home", home_folder.getName()));
    }


    static public WorkspaceTreeNode getDownloadedFilesNode()
    {
    // Return a mapping to the downloaded files folder
    return new WorkspaceTreeNode(Utility.getCacheDir(), Dictionary.get("Tree.DownloadedFiles"));
    }
}