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 structkeyexists 021 */ 022package lucee.runtime.functions.struct; 023 024import lucee.runtime.PageContext; 025import lucee.runtime.config.NullSupportHelper; 026import lucee.runtime.exp.FunctionException; 027import lucee.runtime.exp.PageException; 028import lucee.runtime.functions.BIF; 029import lucee.runtime.functions.query.QueryColumnExists; 030import lucee.runtime.op.Caster; 031import lucee.runtime.type.Collection; 032import lucee.runtime.type.CollectionStruct; 033import lucee.runtime.type.KeyImpl; 034import lucee.runtime.type.Query; 035 036public final class StructKeyExists extends BIF { 037 038 private static final long serialVersionUID = 7659087310641834209L; 039 040 public static boolean call(PageContext pc , lucee.runtime.type.Struct struct, String key) { 041 return call(pc, struct, KeyImpl.init(key)); 042 } 043 044 public static boolean call(PageContext pc , lucee.runtime.type.Struct struct, Collection.Key key) { 045 if(struct instanceof CollectionStruct) { 046 Collection c=((CollectionStruct) struct).getCollection(); 047 if(c instanceof Query) { 048 return QueryColumnExists.call(pc, (Query)c, key); 049 } 050 } 051 if(NullSupportHelper.full()) return struct.containsKey(key); 052 053 return struct.containsKey(key) && struct.get(key,null)!=null;// do not change, this has do be this way 054 } 055 056 @Override 057 public Object invoke(PageContext pc, Object[] args) throws PageException { 058 if(args.length==2) 059 return call(pc,Caster.toStruct(args[0]),Caster.toKey(args[1])); 060 061 throw new FunctionException(pc, "StructKeyExists", 2, 2, args.length); 062 } 063}