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 listvaluecount
021 */
022package lucee.runtime.functions.list;
023
024import lucee.runtime.PageContext;
025import lucee.runtime.exp.FunctionException;
026import lucee.runtime.exp.PageException;
027import lucee.runtime.functions.BIF;
028import lucee.runtime.op.Caster;
029import lucee.runtime.type.Array;
030import lucee.runtime.type.util.ListUtil;
031
032public final class ListValueCount extends BIF {
033
034        private static final long serialVersionUID = -1808030347105091742L;
035
036        public static double call(PageContext pc , String list, String value) throws PageException {
037                return call(pc,list,value,",",false);
038        }
039
040        public static double call(PageContext pc , String list, String value, String delimiter) throws PageException {
041                return call(pc,list,value,delimiter,false);
042        }
043        public static double call(PageContext pc , String list, String value, String delimiter,boolean includeEmptyFields) throws PageException {
044                int count=0;
045                Array arr= includeEmptyFields?ListUtil.listToArray(list,delimiter):ListUtil.listToArrayRemoveEmpty(list,delimiter);
046                int len=arr.size();
047                
048                for(int i=1;i<=len;i++) {
049                        if(arr.getE(i).equals(value))count++;
050                }
051                return count;
052        }
053        
054    @Override
055        public Object invoke(PageContext pc, Object[] args) throws PageException {
056        if(args.length==2)
057                        return call(pc, Caster.toString(args[0]), Caster.toString(args[1]));
058        if(args.length==3)
059                        return call(pc, Caster.toString(args[0]), Caster.toString(args[1]), Caster.toString(args[2]));
060        if(args.length==4)
061                        return call(pc, Caster.toString(args[0]), Caster.toString(args[1]), Caster.toString(args[2]), Caster.toBooleanValue(args[3]));
062        
063                throw new FunctionException(pc, "ListValueCount", 2, 4, args.length);
064        }
065}