/**
 *                                                                            
 *  Copyright (c) 2011, 2018 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany) 
 *                                                                            
 *  All rights reserved. This program and the accompanying materials           
 *  are made available under the terms of the Eclipse Public License 2.0        
 *  which accompanies this distribution, and is available at                  
 *  https://www.eclipse.org/legal/epl-2.0/                                 
 *                                 
 *  SPDX-License-Identifier: EPL-2.0                                 
 *                                                                            
 *  Contributors:                                                      
 * 	   Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
 * 
 */
package org.eclipse.osbp.xtext.signal.common;

import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.WatchEvent;

public interface IOSBPSignalWatcher {

	/**
     * Process all events for keys queued to the watcher.
     */
    public void processEvents();
    
    /**
     * Handling method for the user to extend.
     * @param ev the {@link WatchEvent}
     */
    public void handleEvent(WatchEvent<Path> ev);
    

    /**
     * Register the given directory with the WatchService
     * @param directory
     * @throws IOException
     */
    public void registerPathToWatcher(Path directory) throws IOException;
    
    /**
     * Register the given directory, and all its sub-directories,  with the WatchService.
     * @param rootpath	{@link Path} the root path.
     * @throws IOException
     */
    public void registerAll(Path rootpath) throws IOException;    
    
}