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 ArrayFilter 021 */ 022package lucee.runtime.functions.arrays; 023 024import lucee.commons.lang.CFTypes; 025import lucee.runtime.PageContext; 026import lucee.runtime.exp.ExpressionException; 027import lucee.runtime.exp.FunctionException; 028import lucee.runtime.exp.PageException; 029import lucee.runtime.functions.BIF; 030import lucee.runtime.functions.closure.Filter; 031import lucee.runtime.op.Caster; 032import lucee.runtime.type.Array; 033import lucee.runtime.type.UDF; 034 035 036public final class ArrayFilter extends BIF { 037 038 public static Array call(PageContext pc , Array array, UDF udf) throws PageException { 039 return _call(pc, array, udf, false, 20); 040 } 041 public static Array call(PageContext pc , Array array, UDF udf, boolean parallel) throws PageException { 042 return _call(pc, array, udf, parallel, 20); 043 } 044 045 public static Array call(PageContext pc , Array array, UDF udf, boolean parallel, double maxThreads) throws PageException { 046 return _call(pc, array, udf, parallel, (int)maxThreads); 047 } 048 049 public static Array _call(PageContext pc , Array array, UDF filter, boolean parallel, int maxThreads) throws PageException { 050 // check UDF return type 051 int type = filter.getReturnType(); 052 if(type!=CFTypes.TYPE_BOOLEAN && type!=CFTypes.TYPE_ANY) 053 throw new ExpressionException("invalid return type ["+filter.getReturnTypeAsString()+"] for UDF Filter; valid return types are [boolean,any]"); 054 055 return (Array) Filter._call(pc, array, filter, parallel, maxThreads); 056 057 } 058 059 060 @Override 061 public Object invoke(PageContext pc, Object[] args) throws PageException { 062 063 if(args.length==2) 064 return call(pc, Caster.toArray(args[0]), Caster.toFunction(args[1])); 065 if(args.length==3) 066 return call(pc, Caster.toArray(args[0]), Caster.toFunction(args[1]), Caster.toBooleanValue(args[2])); 067 if(args.length==4) 068 return call(pc, Caster.toArray(args[0]), Caster.toFunction(args[1]), Caster.toBooleanValue(args[2]), Caster.toDoubleValue(args[3])); 069 070 throw new FunctionException(pc, "ArrayFilter", 2, 4, args.length); 071 072 073 } 074}