cmsmergepages.java

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/*
 * File   : $Source: /usr/local/cvs/opencms/src-modules/org/opencms/workplace/tools/content/CmsMergePages.java,v $
 * Date   : $Date: 2007-08-13 16:29:57 $
 * Version: $Revision: 1.18 $
 *
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) 2002 - 2007 Alkacon Software GmbH (http://www.alkacon.com)
 *
 * 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 Alkacon Software GmbH, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project 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 org.opencms.workplace.tools.content;

import org.opencms.file.CmsFile;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.file.types.CmsResourceTypeXmlPage;
import org.opencms.i18n.CmsLocaleManager;
import org.opencms.i18n.CmsMessages;
import org.opencms.jsp.CmsJspActionElement;
import org.opencms.main.CmsException;
import org.opencms.report.I_CmsReport;
import org.opencms.util.CmsStringUtil;
import org.opencms.workplace.CmsReport;
import org.opencms.workplace.CmsWorkplaceSettings;
import org.opencms.xml.page.CmsXmlPage;
import org.opencms.xml.page.CmsXmlPageFactory;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;

/**
 * Provides methods for the merge pages dialog.<p>
 *
 * @author Michael Emmerich 
 * 
 * @version $Revision: 1.18 $ 
 * 
 * @since 6.0.0 
 */
public class CmsMergePages extends CmsReport {

    /** A constant representing the select option all templates. */
    public static final String ALL = "ALL";

    /** Key for pages found in folder 1 exclusivly. */
    public static final int FOLDER1_EXCLUSIVE = 0;

    /** Key for pages found in folder 2 exclusivly. */
    public static final int FOLDER2_EXCLUSIVE = 1;

    /** Key for pages found in both folders but as different types. */
    public static final int FOLDERS_DIFFERENTTYPES = 4;

    /** Key for pages found in both folders as individual resources. */
    public static final int FOLDERS_EQUALNAMES = 3;

    /** Key for pages found in both folders as siblings. */
    public static final int FOLDERS_SIBLING = 2;

    /** The dialog type. */
    public static final String DIALOG_TYPE = "mergepages";

    /** Request parameter name for the first folder to merge. */
    public static final String PARAM_FOLDER1 = "folder1";

    /** Request parameter name for the second folder to merge. */
    public static final String PARAM_FOLDER2 = "folder2";

    /** the cms object. */
    private CmsObject m_cms;

    /** the error message. */
    private String m_errorMessage;

    /** List of pages found in folder 1 exclusivly. */
    private List m_folder1Exclusive;

    /** List of pages found in folder 2 exclusivly. */
    private List m_folder2Exclusive;

    /** List of pages found in  both folders but as different types. */
    private List m_foldersDifferenttypes;

    /** List of pages found in both folders as individual resources. */
    private List m_foldersEqualnames;

    /** List of pages found in both folders as siblings. */
    private List m_foldersSibling;

    /** The first folder to merge. */
    private String m_paramFolder1;

    /** The second folder to merge. */
    private String m_paramFolder2;

    /** the report for the output. */
    private I_CmsReport m_report;

    /**
     * Public constructor with JSP action element.<p>
     * 
     * @param jsp an initialized JSP action element
     */
    public CmsMergePages(CmsJspActionElement jsp) {

        super(jsp);
        m_folder1Exclusive = new ArrayList();
        m_folder2Exclusive = new ArrayList();
        m_foldersSibling = new ArrayList();
        m_foldersEqualnames = new ArrayList();
        m_foldersDifferenttypes = new ArrayList();
    }

    /**
     * Public constructor with JSP variables.<p>
     * 
     * @param cms the current CmsObject
     * @param context the JSP page context
     * @param req the JSP request
     * @param res the JSP response
     */
    public CmsMergePages(CmsObject cms, PageContext context, HttpServletRequest req, HttpServletResponse res) {

        this(new CmsJspActionElement(context, req, res));
        m_cms = cms;
    }

    /**
     * Merges the specified resources.<p>
     * 
     * @param report the cms report
     */
    public void actionMerge(I_CmsReport report) {

        m_report = report;
        m_report.println(Messages.get().container(Messages.RPT_MERGE_PAGES_BEGIN_0), I_CmsReport.FORMAT_HEADLINE);

        try {
            // collect all pages and sort them depending on their state
            collectResources();
            // merge all pages that can be merged
            mergePages();
            // cleanup
            cleanup();
        } catch (CmsException e) {
            m_report.println(e);
        }

    }

    /**
     * Performs the move report, will be called by the JSP page.<p>
     * 
     * @throws JspException if problems including sub-elements occur
     */
    public void actionReport() throws JspException {

        // save initialized instance of this class in request attribute for included sub-elements
        getJsp().getRequest().setAttribute(SESSION_WORKPLACE_CLASS, this);
        switch (getAction()) {
            case ACTION_REPORT_END:
                actionCloseDialog();
                break;
            case ACTION_REPORT_UPDATE:
                setParamAction(REPORT_UPDATE);
                getJsp().include(FILE_REPORT_OUTPUT);
                break;
            case ACTION_REPORT_BEGIN:
            case ACTION_CONFIRMED:
            default:
                CmsMergePagesThread thread = new CmsMergePagesThread(getCms(), this);
                thread.start();
                setParamAction(REPORT_BEGIN);
                setParamThread(thread.getUUID().toString());
                getJsp().include(FILE_REPORT_OUTPUT);
                break;
        }
    }

    /**
     * @see org.opencms.workplace.CmsWorkplace#getCms()
     */
    public CmsObject getCms() {

        if (m_cms == null) {
            return super.getCms();
        }

        return m_cms;
    }

    /**
     * Returns the errorMessage.<p>
     *
     * @return the errorMessage
     */
    public String getErrorMessage() {

        if (CmsStringUtil.isEmpty(m_errorMessage)) {
            return "";
        }

        return m_errorMessage;
    }

    /**
     * Returns the first folder.<p>
     *
     * @return the folder
     */
    public String getParamFolder1() {

        return m_paramFolder1;
    }

    /**
     * Returns the second folder.<p>
     *
     * @return the folder
     */
    public String getParamFolder2() {

        return m_paramFolder2;
    }

    /**
     * Sets the errorMessage.<p>
     *