cmshistorylist.java

来自「找了很久才找到到源代码」· Java 代码 · 共 826 行 · 第 1/3 页

/*
 * File   : $Source: /usr/local/cvs/opencms/src/org/opencms/workplace/commons/CmsHistoryList.java,v $
 * Date   : $Date: 2007-08-13 16:29:45 $
 * Version: $Revision: 1.9 $
 *
 * 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.commons;

import org.opencms.file.CmsObject;
import org.opencms.file.CmsProject;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.file.CmsVfsResourceNotFoundException;
import org.opencms.file.history.CmsHistoryProject;
import org.opencms.file.history.CmsHistoryResourceHandler;
import org.opencms.file.history.I_CmsHistoryResource;
import org.opencms.jsp.CmsJspActionElement;
import org.opencms.main.CmsException;
import org.opencms.main.CmsLog;
import org.opencms.main.CmsRuntimeException;
import org.opencms.main.OpenCms;
import org.opencms.security.CmsPrincipal;
import org.opencms.util.CmsUUID;
import org.opencms.workplace.list.A_CmsListDialog;
import org.opencms.workplace.list.CmsListColumnAlignEnum;
import org.opencms.workplace.list.CmsListColumnDefinition;
import org.opencms.workplace.list.CmsListDirectAction;
import org.opencms.workplace.list.CmsListItem;
import org.opencms.workplace.list.CmsListItemActionIconComparator;
import org.opencms.workplace.list.CmsListItemDetails;
import org.opencms.workplace.list.CmsListItemDetailsFormatter;
import org.opencms.workplace.list.CmsListItemSelectionAction;
import org.opencms.workplace.list.CmsListMetadata;
import org.opencms.workplace.list.CmsListOrderEnum;
import org.opencms.workplace.list.CmsListRadioMultiAction;
import org.opencms.workplace.list.CmsListResourceIconAction;
import org.opencms.workplace.list.I_CmsListFormatter;
import org.opencms.workplace.tools.CmsToolDialog;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;

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

import org.apache.commons.logging.Log;

/**
 * Displays the history of a file.<p>
 * 
 * @author Jan Baudisch  
 * @author Armen Markarian 
 * 
 * @version $Revision: 1.9 $ 
 * 
 * @since 6.0.2 
 */
public class CmsHistoryList extends A_CmsListDialog {

    /** 
     * Wrapper class for the version which is either an integer or the string "offline".<p>
     */
    public static class CmsVersionWrapper implements Comparable {

        /** the version. */
        private Integer m_version;

        /** 
         * Constructs a new version wrapper.<p>
         * 
         * @param version the version of the file
         */
        public CmsVersionWrapper(int version) {

            m_version = new Integer(version);
        }

        /**
         * 
         * @see java.lang.Comparable#compareTo(java.lang.Object)
         */
        public int compareTo(Object o) {

            if (this == o) {
                return 0;
            }
            if (o instanceof CmsVersionWrapper) {
                CmsVersionWrapper version = (CmsVersionWrapper)o;
                Integer v1 = m_version;
                Integer v2 = version.getVersion();
                if (v1.intValue() < 0) {
                    v1 = new Integer(-1 * v1.intValue());
                }
                if (v2.intValue() < 0) {
                    v2 = new Integer(-1 * v2.intValue());
                }
                return ((Comparable)v1).compareTo(v2);
            }
            return 0;
        }

        /**
         * @see java.lang.Object#equals(java.lang.Object)
         */
        public boolean equals(Object obj) {

            if (this == obj) {
                return true;
            }
            if (obj instanceof CmsVersionWrapper) {
                CmsVersionWrapper version = (CmsVersionWrapper)obj;
                return getVersion().equals(version.getVersion());
            }
            return false;
        }

        /**
         * Returns the version of the file.<p>
         * 
         * @return the version of the file
         */
        public Integer getVersion() {

            return m_version;
        }

        /**
         * @see java.lang.Object#hashCode()
         */
        public int hashCode() {

            return getVersion().hashCode();
        }

        /**
         * 
         * @see java.lang.Object#toString()
         */
        public String toString() {

            return m_version.toString();
        }

    }

    /** list item detail id constant. */
    public static final String GUI_LIST_HISTORY_DETAIL_PROJECT_0 = "lhdp";

    /** List action export. */
    public static final String LIST_ACTION_RESTORE = "ar";

    /** list action id constant. */
    public static final String LIST_ACTION_VIEW = "av";

    /** list column id constant. */
    public static final String LIST_COLUMN_DATE_LAST_MODIFIED = "cm";

    /** list column id constant. */
    public static final String LIST_COLUMN_DATE_PUBLISHED = "cdp";

    /** list column id constant. */
    public static final String LIST_COLUMN_FILE_TYPE = "ct";

    /** list column id constant. */
    public static final String LIST_COLUMN_ICON = "ci";

    /** list column id constant. */
    public static final String LIST_COLUMN_PUBLISH_TAG = "cbt";

    /** list column id constant. */
    public static final String LIST_COLUMN_RESOURCE_PATH = "crp";

    /** List column delete. */
    public static final String LIST_COLUMN_RESTORE = "cr";

    /** list column id constant. */
    public static final String LIST_COLUMN_SEL1 = "cs1";

    /** list column id constant. */
    public static final String LIST_COLUMN_SEL2 = "cs2";

    /** list column id constant. */
    public static final String LIST_COLUMN_SIZE = "cs";

    /** list column id constant. */
    public static final String LIST_COLUMN_STRUCTURE_ID = "csi";

    /** List column export. */
    public static final String LIST_COLUMN_USER = "cu";

    /** list column id constant. */
    public static final String LIST_COLUMN_VERSION = "cv";

    /** List column export. */
    public static final String LIST_COLUMN_VIEW = "cp";

    /** list id constant. */
    public static final String LIST_ID = "him";

    /** list independent action id constant. */
    public static final String LIST_RACTION_SEL1 = "rs1";

    /** list independent action id constant. */
    public static final String LIST_RACTION_SEL2 = "rs2";

    /** parameter for the path of the first resource. */
    public static final String PARAM_ID_1 = "id1";

    /** parameter for the path of the second resource. */
    public static final String PARAM_ID_2 = "id2";

    /** parameter for the version of the first resource. */
    public static final String PARAM_VERSION_1 = "version1";

    /** parameter for the version of the second resource. */
    public static final String PARAM_VERSION_2 = "version2";

    /** Path to the list buttons. */
    public static final String PATH_BUTTONS = "buttons/";

    /** list multi action id constant. */
    private static final String LIST_MACTION_COMPARE = "mc";

    /** The log object for this class. */
    private static final Log LOG = CmsLog.getLog(CmsHistoryList.class);

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

        super(
            jsp,
            LIST_ID,
            Messages.get().container(Messages.GUI_HISTORY_0),
            LIST_COLUMN_VERSION,
            CmsListOrderEnum.ORDER_DESCENDING,
            null);
    }

    /**