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.functions.cache; 020 021import java.io.IOException; 022import java.util.Iterator; 023 024import lucee.commons.io.cache.Cache; 025import lucee.runtime.PageContext; 026import lucee.runtime.config.ConfigImpl; 027import lucee.runtime.exp.ApplicationException; 028import lucee.runtime.exp.PageException; 029import lucee.runtime.ext.function.Function; 030import lucee.runtime.op.Caster; 031import lucee.runtime.op.Decision; 032import lucee.runtime.type.Array; 033import lucee.runtime.type.util.ListUtil; 034 035/** 036 * 037 */ 038public final class CacheRemove implements Function { 039 040 private static final long serialVersionUID = -5823359978885018762L; 041 042 public static String call(PageContext pc, Object ids) throws PageException { 043 return call(pc, ids, false,null); 044 } 045 public static String call(PageContext pc, Object ids, boolean throwOnError) throws PageException { 046 return call(pc, ids, throwOnError, null); 047 } 048 049 050 public static String call(PageContext pc, Object ids, boolean throwOnError, String cacheName) throws PageException { 051 Array arr = toArray(ids);// 052 Iterator it = arr.valueIterator(); 053 String id; 054 Cache cache; 055 try { 056 cache = Util.getCache(pc,cacheName,ConfigImpl.CACHE_DEFAULT_OBJECT); 057 } catch (IOException e) { 058 throw Caster.toPageException(e); 059 } 060 StringBuilder sb=null; 061 try{ 062 while(it.hasNext()){ 063 id= Util.key(Caster.toString(it.next())); 064 if(!cache.remove(id) && throwOnError){ 065 if(sb==null)sb=new StringBuilder(); 066 else sb.append(','); 067 sb.append(id); 068 } 069 } 070 } 071 catch (IOException e) {} 072 if(throwOnError && sb!=null) 073 throw new ApplicationException("can not remove the elements with the following id(s) ["+sb+"]"); 074 return null; 075 } 076 private static Array toArray(Object oIds) throws PageException { 077 if(Decision.isArray(oIds)){ 078 return Caster.toArray(oIds); 079 } 080 return ListUtil.listToArray(Caster.toString(oIds), ','); 081 } 082 083}