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 **/
019package lucee.runtime.functions.file;
020
021import java.io.IOException;
022
023import lucee.runtime.PageContext;
024import lucee.runtime.exp.FunctionException;
025import lucee.runtime.exp.PageException;
026import lucee.runtime.op.Caster;
027
028public class FileReadLine {
029
030        public static String call(PageContext pc, Object fileObj) throws PageException {
031                if(!(fileObj instanceof FileStreamWrapper)) 
032                        throw new FunctionException(pc,"FileReadLine",1,"fileObj",
033                                        "invalid type ["+Caster.toTypeName(fileObj)+"], only File Object produced by FileOpen supported");
034                try {
035                        return ((FileStreamWrapper)fileObj).readLine();
036                } catch (IOException e) {
037                        throw Caster.toPageException(e);
038                }
039        }
040}