cmssyncfolder.java

内容管理

/*
* File   : $Source: /usr/local/cvs/opencms/src/com/opencms/workplace/CmsSyncFolder.java,v $
* Date   : $Date: 2003/02/21 15:18:23 $
* Version: $Revision: 1.14 $
*
* 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 com.opencms.boot.I_CmsLogChannels;
import com.opencms.core.A_OpenCms;
import com.opencms.core.CmsException;
import com.opencms.core.I_CmsConstants;
import com.opencms.core.I_CmsSession;
import com.opencms.file.CmsGroup;
import com.opencms.file.CmsObject;
import com.opencms.file.CmsProject;
import com.opencms.file.CmsRequestContext;
import com.opencms.file.CmsResource;
import com.opencms.report.A_CmsReportThread;
import com.opencms.template.CmsXmlTemplateFile;
import com.opencms.util.Utils;

import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;

/**
 * Template class for displaying OpenCms workplace synchronize screens.
 * <P>
 *
 * @author Edna Falkenhan
 * @version $Revision: 1.14 $ $Date: 2003/02/21 15:18:23 $
 * @see com.opencms.workplace.CmsXmlWpTemplateFile
 */

public class CmsSyncFolder extends CmsWorkplaceDefault implements I_CmsConstants {

    /**
     * The name of the synchronizationproject-property.
     */
    static final String C_SYNCHRONISATION_PROJECT = "syncproject";

    /**
     * The name of the synchronizationresource-property.
     */
    static final String C_SYNCHRONISATION_RESOURCE = "syncresource";

    /**
     * The name of the tag for sync button.
     */
    static final String C_SYNC_BUTTON = "SYNC";

    /**
     * The name of the tag for disabled sync button.
     */
    static final String C_SYNC_BUTTON_DISABLED = "SYNC_DISABLED";

    /**
     * The name of the tag for enabled sync button.
     */
    static final String C_SYNC_BUTTON_ENABLED = "SYNC_ENABLED";

    /**
     *
     */
    private static String C_SYNCFOLDER_THREAD = "sync_folder_thread";

    /**
     * The flag is set true, if a new project for synchronisation has been created
     */
    private static boolean m_newProject = false;


    /**
     * 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(I_CmsLogChannels.C_PREPROCESSOR_IS_LOGGING && A_OpenCms.isLogging() && C_DEBUG) {
            A_OpenCms.log(C_OPENCMS_DEBUG, this.getClassName()
                    + "getting content of element " + ((elementName == null) ? "<root>" : elementName));
            A_OpenCms.log(C_OPENCMS_DEBUG, this.getClassName() + "template file is: "
                    + templateFile);
            A_OpenCms.log(C_OPENCMS_DEBUG, this.getClassName() + "selected template section is: "
                    + ((templateSelector == null) ? "<default>" : templateSelector));
        }
        I_CmsSession session = cms.getRequestContext().getSession(true);
        CmsRequestContext reqCont = cms.getRequestContext();
        //CmsXmlLanguageFile lang = new CmsXmlLanguageFile(cms);
        String action = new String();
        action = (String)parameters.get("action");
        CmsXmlTemplateFile xmlTemplateDocument = getOwnTemplateFile(cms, templateFile,
                elementName, parameters, templateSelector);

        // clear session values on first load
        String initial = (String)parameters.get(C_PARA_INITIAL);
        if(initial != null) {
        // remove all session values
            session.removeValue("lasturl");
            action = "start";
        }
        // create a vector with the resources to be synchronized
        Vector synchronizeResources = parseResources(cms.getRegistry().getSystemValues(C_SYNCHRONISATION_RESOURCE));

        // first we look if the thread is already running
        if((action != null) && ("working".equals(action))) {
            // still working?
            A_CmsReportThread doProjectNew = (A_CmsReportThread)session.getValue(C_SYNCFOLDER_THREAD);
            if(doProjectNew.isAlive()) {
                String time = (String)parameters.get("time");
                int wert = Integer.parseInt(time);
                wert += 5;
                xmlTemplateDocument.setData("time", "" + wert);
                return startProcessing(cms, xmlTemplateDocument, elementName, parameters,
                        "wait");
            } else {
                // thread has come to an end, was there an error?
                String errordetails = (String)session.getValue(C_SESSION_THREAD_ERROR);
                if(errordetails == null) {
                    return startProcessing(cms, xmlTemplateDocument, elementName,
                            parameters, "done");
                } else {
                    // get errorpage:
                    xmlTemplateDocument.setData("details", errordetails);
                    session.removeValue(C_SESSION_THREAD_ERROR);
                    return startProcessing(cms, xmlTemplateDocument, elementName,
                            parameters, "error");
                }
            }
        }

        // is the wait-page showing?
        if("start".equals(action)) {
            // synchronize the resources
            try {
                // this is because the simpler 'getParameterValues' method doesn't work with Silverstream
                int numRes = synchronizeResources.size();
                checkRedundancies(synchronizeResources);
                numRes = synchronizeResources.size(); // could have been changed
                Vector notWriteable = new Vector();
                for(int i = numRes - 1;i >= 0;i--) {
                    String theFolder = (String)synchronizeResources.elementAt(i);
                    // if a new project was created for synchronisation, copy the resource to the project
                    // this is now done in the thread
                                        //if (m_newProject){
                    //  cms.copyResourceToProject(theFolder);