cmscheckmem.java

cms是开源的框架

/*
* File   : $Source: /usr/local/cvs/opencms/src-modules/com/opencms/workplace/CmsCheckMem.java,v $
* Date   : $Date: 2005/05/31 15:51:19 $
* Version: $Revision: 1.2 $
*
* This library is part of OpenCms -
* the Open Source Content Mananagement System
*
* Copyright (C) 2001  The OpenCms Group
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* For further information about OpenCms, please see the
* OpenCms Website: http://www.opencms.org 
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/


package com.opencms.workplace;

import org.opencms.file.CmsObject;
import org.opencms.main.CmsException;
import org.opencms.main.CmsLog;

import com.opencms.template.CmsXmlTemplateFile;

import java.util.Hashtable;

/**
 * Template class for displaying OpenCms workplace task head screens.
 * <P>
 * 
 * @author Andreas Schouten
 * @version $Revision: 1.2 $ $Date: 2005/05/31 15:51:19 $
 * @see com.opencms.workplace.CmsXmlWpTemplateFile
 * 
 * @deprecated Will not be supported past the OpenCms 6 release.
 */

public class CmsCheckMem extends CmsWorkplaceDefault {
    
    /**
     * Gets the content of a defined section in a given template file and its subtemplates
     * with the given parameters. 
     * 
     * @see #getContent(CmsObject, String, String, Hashtable, String)
     * @param cms CmsObject Object for accessing system resources.
     * @param templateFile Filename of the template file.
     * @param elementName Element name of this template in our parent template.
     * @param parameters Hashtable with all template class parameters.
     * @param templateSelector template section that should be processed.
     */
    
    public byte[] getContent(CmsObject cms, String templateFile, String elementName, 
            Hashtable parameters, String templateSelector) throws CmsException {
        if(CmsLog.getLog(this).isDebugEnabled() && C_DEBUG) {
            CmsLog.getLog(this).debug("Getting content of element " + ((elementName==null)?"<root>":elementName));
            CmsLog.getLog(this).debug("Template file is: " + templateFile);
            CmsLog.getLog(this).debug("Selected template section is: " + ((templateSelector==null)?"<default>":templateSelector));
        }
        CmsXmlTemplateFile xmlTemplateDocument = getOwnTemplateFile(cms, templateFile, 
                elementName, parameters, templateSelector);
        xmlTemplateDocument.setData("mem", getMem());
        
        // Now load the template file and start the processing
        return startProcessing(cms, xmlTemplateDocument, elementName, parameters, 
                templateSelector);
    }
    
    /**
     * Creates a Textstring, containing all, free and used memeory.
     * @return String with memory information.
     */
    
    private String getMem() {
        long total = Runtime.getRuntime().totalMemory() / 1024;
        long free = Runtime.getRuntime().freeMemory() / 1024;
        return ("OpenCms Avail. Mem:" + total + "k, Free Mem:" + free + "k, Used Mem:" 
                + (total - free) + "k");
    }
    
    /**
     * Indicates if the results of this class are cacheable.
     * 
     * @param cms CmsObject Object for accessing system resources
     * @param templateFile Filename of the template file 
     * @param elementName Element name of this template in our parent template.
     * @param parameters Hashtable with all template class parameters.
     * @param templateSelector template section that should be processed.
     * @return <EM>true</EM> if cacheable, <EM>false</EM> otherwise.
     */
    
    public boolean isCacheable(CmsObject cms, String templateFile, String elementName, 
            Hashtable parameters, String templateSelector) {
        return false;
    }
}