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 arraytolist
021 */
022package lucee.runtime.functions.list;
023
024import lucee.runtime.PageContext;
025import lucee.runtime.exp.PageException;
026import lucee.runtime.functions.BIF;
027import lucee.runtime.op.Caster;
028import lucee.runtime.type.Array;
029
030public final class ArrayToList extends BIF {
031
032        private static final long serialVersionUID = -4909685848106371747L;
033
034        public static String call(PageContext pc , Array array) throws PageException {
035                return call(pc,array,',');
036        }
037        public static String call(PageContext pc , Array array, String delimiter) throws PageException {
038                if(delimiter.length()==1) return call(pc,array,delimiter.charAt(0));
039                int len=array.size();
040                if(len==0) return "";
041                if(len==1)return Caster.toString(array.get(1,""));
042                
043                Object o=array.get(1,null);
044                StringBuilder sb=new StringBuilder(o==null?"":Caster.toString(o));
045                for(int i=2;i<=len;i++) {
046                        sb.append(delimiter);
047                        o=array.get(i,null);
048                        sb.append(o==null?"":Caster.toString(o));
049                }
050                return sb.toString();
051        }
052        public static String call(PageContext pc , Array array, char delimiter) throws PageException {
053                int len=array.size();
054                if(len==0) return "";
055                if(len==1)return Caster.toString(array.getE(1));
056                
057                Object o=array.get(1,null);
058                StringBuilder sb=new StringBuilder(o==null?"":Caster.toString(o));
059                for(int i=2;i<=len;i++) {
060                        sb.append(delimiter);
061                        o=array.get(i,null);
062                        sb.append(o==null?"":Caster.toString(o));
063                }
064                return sb.toString();
065        }
066        
067        @Override
068        public Object invoke(PageContext pc, Object[] args) throws PageException {
069                if(args.length==1) return call(pc,Caster.toArray(args[0]));
070                return call(pc,Caster.toArray(args[0]),Caster.toString(args[1]));
071        }
072}