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.type.comparator; 020 021import java.util.Comparator; 022 023import lucee.runtime.exp.ExpressionException; 024import lucee.runtime.exp.PageException; 025import lucee.runtime.exp.PageRuntimeException; 026import lucee.runtime.op.Caster; 027 028 029/** 030 * comparator implementation to compare textes 031 */ 032public final class TextComparator implements Comparator { 033 034 private boolean isAsc; 035 private boolean ignoreCase; 036 037 /** 038 * constructor of the class 039 * @param isAsc ascending or desending 040 * @param ignoreCase ignore case or not 041 */ 042 public TextComparator(boolean isAsc, boolean ignoreCase) { 043 this.isAsc=isAsc; 044 this.ignoreCase=ignoreCase; 045 } 046 047 @Override 048 public int compare(Object oLeft, Object oRight) { 049 try { 050 if(isAsc) return compareObjects(oLeft, oRight); 051 return compareObjects(oRight, oLeft); 052 } 053 catch (PageException e) { 054 throw new PageRuntimeException(new ExpressionException("can only sort arrays with simple values",e.getMessage())); 055 } 056 } 057 058 private int compareObjects(Object oLeft, Object oRight) throws PageException { 059 if(ignoreCase)return Caster.toString(oLeft).compareToIgnoreCase(Caster.toString(oRight)); 060 return Caster.toString(oLeft).compareTo(Caster.toString(oRight)); 061 } 062 063}