/* 
 *  Copyright (C) 2000 - 2011 TagServlet Ltd
 *
 *  This file is part of Open BlueDragon (OpenBD) CFML Server Engine.
 *  
 *  OpenBD is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  Free Software Foundation,version 3.
 *  
 *  OpenBD 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 for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with OpenBD.  If not, see http://www.gnu.org/licenses/
 *  
 *  Additional permission under GNU GPL version 3 section 7
 *  
 *  If you modify this Program, or any covered work, by linking or combining 
 *  it with any of the JARS listed in the README.txt (or a modified version of 
 *  (that library), containing parts covered by the terms of that JAR, the 
 *  licensors of this Program grant you additional permission to convey the 
 *  resulting work. 
 *  README.txt @ http://www.openbluedragon.org/license/README.txt
 *  
 *  http://openbd.org/
 *  $Id: getDirectoryFromPath.java 1816 2011-11-22 05:43:50Z alan $ 
 */

package com.naryx.tagfusion.expression.function.file;

import java.util.List;

import com.nary.io.FileUtils;
import com.naryx.tagfusion.cfm.engine.cfData;
import com.naryx.tagfusion.cfm.engine.cfSession;
import com.naryx.tagfusion.cfm.engine.cfStringData;
import com.naryx.tagfusion.cfm.engine.cfmRunTimeException;
import com.naryx.tagfusion.cfm.file.vfs.cfVFSData;
import com.naryx.tagfusion.expression.function.functionBase;

public class getDirectoryFromPath extends functionBase {
	private static final long serialVersionUID = 1L;

	public getDirectoryFromPath() {
		min = max = 1;
	}

	public String[] getParamInfo() {
		return new String[] { "full path" };
	}

	public java.util.Map getInfo() {
		return makeInfo("file", "Returns the path only of the full path", ReturnType.STRING);
	}

	public cfData execute(cfSession _session, List<cfData> parameters) throws cfmRunTimeException {
		
		cfData	d	= parameters.get(0);
		String path;
		if ( d instanceof cfVFSData ){
			path	= ((cfVFSData)d).getFullName();
		}else{
			path	= d.getString();
		}
		
		path 	= FileUtils.cleanPath(path, '/');
		path 	= FileUtils.cleanPath(path, '\\');
		
		int	lastSlash	= path.lastIndexOf("/");
		if ( lastSlash != -1 )
			path	= path.substring( 0, lastSlash+1 );
		else{
			lastSlash	= path.lastIndexOf("\\");
			if ( lastSlash != -1 )
				path	= path.substring( 0, lastSlash+1 );
		}

		return new cfStringData( path );
	}
}