plugins/org.eclipse.epp.installer.core/src/org/eclipse/epp/installer/internal/core/OS.java

/*
 * Created on 16.12.2005
 */
package org.eclipse.epp.installer.internal.core;

/**
 * Class OS are used then needed operation system dependent function.
 * 
 * This class USED JNI to implement functions.
 * 
 * See library/fs.c, library/os.c for implementation.
 * 
 * @author Max Stepanov (max@xored.com)
 * 
 * @version $Revision: 1.2 $
 */
public class OS {

	/**
	 * Load the library
	 * 
	 */
	static {
		try {
			System.loadLibrary("os");
		}
		catch (UnsatisfiedLinkError e) {
			System.err.println("ERROR You have not installed the DLL named 'os.dll'.\n\t" + e.getMessage());
			throw e;
		}
		catch (SecurityException e) {
			System.err.println("ERROR You do not have permission to load the DLL named 'os.dll'.\n\t" + e.getMessage());
			throw e;
		}
	}

	public static final int DRIVE_UNKNOWN = 0;
	public static final int DRIVE_NO_ROOT_DIR = 1;
	public static final int DRIVE_REMOVABLE = 2;
	public static final int DRIVE_FIXED = 3;
	public static final int DRIVE_REMOTE = 4;
	public static final int DRIVE_CDROM = 5;
	public static final int DRIVE_RAMDISK = 6;
	
	/**
	 * Delete selected file on reboot. Operation supported on Windows. Operation
	 * isn't supported on Linux.
	 * 
	 * @param path
	 *            String absolute path to file.
	 * @return boolean return <code>true</code> if operation are successful.
	 */
	public static final native boolean DeleteFileOnReboot(String path);

	/**
	 * Retrieves the path of a special folder, identified by its ID. Operation supported on Windows.
	 * Operation isn't supported on Linux.
	 * 
	 * @param specialFolderId
	 *            int that identifies the folder of interest.
	 * @return String return path of a special folder if operation are successful.
	 * 					<code>null</code> othervise.
	 */
	public static final native String GetSpecialFolderPath(int specialFolderId);

	
	/**
	 * Determines whether a disk drive is a removable, fixed, CD-ROM, RAM disk,
	 * 	or network drive.
	 * @param driveRootPath
	 * 			String that identifies root drive path
	 * @return int return type of a specified drive
	 */
	public static final native int GetDriveType( String driveRootPath );
	
	/**
	 * Reboot system, on system supported this call. Only Windows are supported.
	 * On other systems, reboot aren't needed in most cases.
	 * 
	 * @return boolean <code>true</code> if reboot are started.
	 *         <code>false</code> othervise.
	 */
	public static final native boolean SystemReboot();
	
	public static final native boolean SetCreationTime(String path,long time);
	
	public static final native boolean CanWrite(String path);
	public static final native boolean CanRead(String path);
	
	public static final native boolean IsUserAdmin();
}