a_cmschannelbackoffice.java

cms是开源的框架

/**
* 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.defaults;

import org.opencms.db.CmsDbUtil;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsRequestContext;
import org.opencms.main.CmsException;
import org.opencms.main.OpenCms;

import com.opencms.core.I_CmsSession;
import com.opencms.defaults.master.CmsMasterContent;
import com.opencms.defaults.master.CmsMasterMedia;
import com.opencms.legacy.CmsXmlTemplateLoader;
import com.opencms.template.A_CmsXmlContent;
import com.opencms.template.CmsXmlTemplateFile;
import com.opencms.workplace.CmsXmlLanguageFile;

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

/**
 * Backoffice class with channel functionality
 * @author Michael Dernen
 * 
 * @deprecated Will not be supported past the OpenCms 6 release.
 */
public abstract class A_CmsChannelBackoffice extends A_CmsBackoffice {

    /**
     * UserMethod creates a selectBox for selected channels
     *
     * @param cms CmsObject Object for accessing system resources
     * @param lang CmsXmlLanguageFile the language file
     * @param values Vector for the values in the selectBox
     * @param names Vector for the names in the selectBox
     * @param parameters Hashtable with all template class parameters.
     * @return Integer selected Index Value of selectBox
     * @throws CmsException in case of unrecoverable errors
     */
    public Integer getSelectedChannels(CmsObject cms, CmsXmlLanguageFile lang, Vector values, Vector names, Hashtable parameters)
                    throws CmsException {
        int retValue = -1;
        I_CmsSession session = CmsXmlTemplateLoader.getSession(cms.getRequestContext(), true);        
        CmsMasterContent cd = (CmsMasterContent)session.getValue(getContentDefinitionClass().getName());
        Vector channels = cd.getSelectedChannels();
        int size = channels.size();
        for (int i=0; i < size; i++) {
            values.add(channels.elementAt(i));
            names.add(channels.elementAt(i));
        }
        return new Integer(retValue);
    }

    /**
     * UserMethod creates a selectBox for available channels
     *
     * @param cms CmsObject Object for accessing system resources
     * @param lang CmsXmlLanguageFile
     * @param values Vector for the values in the selectBox
     * @param names Vector for the names in the selectBox
     * @param parameters Hashtable with all template class parameters.
     * @return Integer selected Index Value of selectBox
     * @throws org.opencms.main.CmsException in case of unrecoverable errors
     */
    public Integer getAvailableChannels(CmsObject cms, CmsXmlLanguageFile lang, Vector values, Vector names, Hashtable parameters)
                    throws CmsException {
        int retValue = -1;
        I_CmsSession session = CmsXmlTemplateLoader.getSession(cms.getRequestContext(), true);
        CmsMasterContent cd = (CmsMasterContent)session.getValue(getContentDefinitionClass().getName());
        Vector channels = cd.getAvailableChannels(cms);
        int size = channels.size();
        for (int i=0; i < size; i++) {
            values.add(channels.elementAt(i));
            names.add(channels.elementAt(i));
        }
        return new Integer(retValue);
    }

    /**
     * UserMethod creates a selectBox for selected channels
     *
     * @param cms CmsObject Object for accessing system resources
     * @param lang CmsXmlLanguageFile
     * @param values Vector for the values in the selectBox
     * @param names Vector for the names in the selectBox
     * @param parameters Hashtable with all template class parameters.
     * @return Integer selected Index Value of selectBox
     * @throws org.opencms.main.CmsException in case of unrecoverable errors
     */
    public Integer getMediaPosition(CmsObject cms, CmsXmlLanguageFile lang, Vector values, Vector names, Hashtable parameters)
                    throws CmsException {
        //get session
        I_CmsSession session = CmsXmlTemplateLoader.getSession(cms.getRequestContext(), true);
        //selected media content definition
        //media_position
        String media_position = null;
        int media_positionInt=0;
        //content of the select box
        String selectBoxContent="";
        //flag
        boolean flag=false;
        try {
            //get the content
            selectBoxContent=selectBoxContent(cms);
        } catch (Exception e) {
            e.printStackTrace(System.err);
        }
        StringTokenizer t = new StringTokenizer(selectBoxContent, ";");
        while (t.hasMoreElements()) {
            String s=t.nextToken();
            if (s!=null && !s.equals("")) {
                int z=s.indexOf(":");
                values.add(s.substring(0, z));
                String name=s.substring(z+1);
                names.add(name);
                //if there is a 0 as position don't
                if (name.equals("0")) {
                  flag=true;
                }
            }
        }
        //try to get the medias from session
        try {
                media_position=(String)session.getValue("media_position");
                media_positionInt=Integer.parseInt(media_position);
                if (!flag) {
                    media_positionInt=Integer.parseInt(media_position)-1;
                }
        } catch (Exception e) {
                media_positionInt=0;
        }
        return new Integer(media_positionInt);
    }

     /**
         * get the complete page to edit,delete and upload files and pictures
         * <P>
         * This method can be called using <code>&lt;METHOD name="getTitle"&gt;</code>
         * in the template file.
         *
         * @param cms CmsObject Object for accessing system resources.
         * @param tagcontent Unused in this special case of a user method. Can be ignored.
         * @param doc Reference to the A_CmsXmlContent object of the initiating XLM document.
         * @param userObject Hashtable with parameters.
         * @return String or byte[] with the content of this subelement.
         * @throws CmsException if something goes wrong
         */
        public Object getContentMedia(CmsObject cms, String tagcontent, A_CmsXmlContent doc, Object userObject) throws CmsException {
            //return value
            String content="";
            String row="";
            //get the template
            CmsXmlTemplateFile templateFile = (CmsXmlTemplateFile) doc;
            I_CmsSession session = CmsXmlTemplateLoader.getSession(cms.getRequestContext(), true);
            CmsMasterContent masterCD = (CmsMasterContent)session.getValue(getContentDefinitionClass().getName());
            //get the parameter
            Hashtable parameters = (Hashtable)userObject;
            // get the action
            String media_action = (String) parameters.get("media_action");
            media_action=(media_action!=null?media_action.trim():"");
            // get the media_name
            String media_name = (String) parameters.get("media_name");
            media_name=(media_name!=null?media_name.trim():"");
            // get the alt_text
            String media_title = (String) parameters.get("media_alt_text");
            media_title=(media_title!=null?media_title.trim():"");
            media_title = org.opencms.i18n.CmsEncoder.unescape(media_title,
                cms.getRequestContext().getEncoding());
            // get the pos
            String pos = (String) parameters.get("pos");
            pos=(pos!=null?pos.trim():"");
            if (pos.equals("")) {
                //if your are in the edit modus get another pos
                pos = (String) parameters.get("posEdit");
                pos=(pos!=null?pos.trim():"");
            }
            int posInt=CmsDbUtil.UNKNOWN_ID;
            if (!pos.equals("")) {
                try {
                    posInt=Integer.parseInt(pos);
                } catch (Exception e) {