001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019/**
020 * Implements the CFML Function tostring
021 */
022package lucee.runtime.functions.string;
023
024import java.nio.charset.Charset;
025
026import lucee.commons.io.CharsetUtil;
027import lucee.commons.lang.StringUtil;
028import lucee.runtime.PageContext;
029import lucee.runtime.exp.PageException;
030import lucee.runtime.ext.function.Function;
031import lucee.runtime.net.http.ReqRspUtil;
032import lucee.runtime.op.Caster;
033
034public final class ToString implements Function {
035        public static String call(PageContext pc ) {
036                return "";
037        }
038        public static String call(PageContext pc , Object object) throws PageException {
039                return call(pc,object,null);
040        }
041        public static String call(PageContext pc , Object object, String encoding) throws PageException {
042                Charset charset;
043                if(StringUtil.isEmpty(encoding)) {
044                        charset = ReqRspUtil.getCharacterEncoding(pc,pc.getResponse());
045                }
046                else
047                        charset = CharsetUtil.toCharset(encoding);
048                
049                if(object instanceof byte[]){
050                        if(charset!=null)
051                                return new String((byte[])object,charset);
052                        return new String((byte[])object);
053                }
054                return Caster.toString(object);
055        }
056}