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.tag;
020
021import lucee.commons.io.SystemUtil;
022import lucee.runtime.exp.ExpressionException;
023import lucee.runtime.exp.PageException;
024import lucee.runtime.ext.tag.TagImpl;
025
026/**
027* Pauses the execution of the page for a given interval
028*
029*
030*
031**/
032public final class Sleep extends TagImpl {
033
034        /** Expressed in milli seconds. */
035        private long time;
036
037        @Override
038        public void release()   {
039                super.release();
040                time=0;
041        }
042
043        /** set the value interval
044        *  Expressed in milli seconds.
045        * @param time value to set
046        **/
047        public void setTime(double time)        {
048                this.time=(long)time;
049        }
050
051
052        @Override
053        public int doStartTag() throws PageException    {
054                if(time>=0) {
055                        SystemUtil.sleep(time);
056                }
057                else throw new ExpressionException("attribute interval must be greater or equal to 0, now ["+(time)+"]");
058                return SKIP_BODY;
059        }
060
061        @Override
062        public int doEndTag()   {
063                return EVAL_PAGE;
064        }
065}