/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) 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.importexport;
import org.opencms.configuration.CmsConfigurationException;
import org.opencms.file.CmsObject;
import org.opencms.main.CmsException;
import org.opencms.report.I_CmsReport;
import org.opencms.security.CmsRoleViolationException;
import org.opencms.xml.CmsXmlException;
import org.dom4j.Document;
/**
* An import/export handler is an abstract layer to hide the logic how to import/export a specific
* type of Cms data.<p>
*
* To export data, you would create an instance of a class implementing this interface, and call the
* implementation's setter methods to arrange which data should be exported. To write the export,
* call {@link org.opencms.importexport.CmsImportExportManager#exportData(CmsObject, I_CmsImportExportHandler, I_CmsReport)}.<p>
*
* To import data, call {@link org.opencms.importexport.CmsImportExportManager#importData(CmsObject, I_CmsReport, CmsImportParameters)}.
* You don't have to worry about the contents of an imported a ZIP archive -
* the import/export manager finds the right import/export handler implementation
* to import the data. You can assign null to the importPath argument in case of a Cms module import.<p>
*
* Use {@link org.opencms.main.OpenCms#getImportExportManager()} to get the Cms import/export manager.<p>
*
* @since 6.0.0
*/
public interface I_CmsImportExportHandler {
/**
* Exports the data from the Cms.<p>
*
* @param cms the current OpenCms context object
* @param report a Cms report to print log messages
*
* @throws CmsImportExportException if operation was not successful
* @throws CmsRoleViolationException if the current user has not the required role
* @throws CmsConfigurationException if a specified module to be exported does not exist
*/
void exportData(CmsObject cms, I_CmsReport report)
throws CmsConfigurationException, CmsImportExportException, CmsRoleViolationException;
/**
* Returns the description of this import/export handler.<p>
* The description is useful to print some info about the purpose of this handler.<p>
*
* @return the description of this import/export handler
*/
String getDescription();
/**
* Returns the import parameters.<p>
*
* @return the import parameters
*/
CmsImportParameters getImportParameters();
/**
* Imports the data into the Cms.<p>
*
* @param cms the current OpenCms context object
* @param report a Cms report to print log messages
*
* @throws CmsImportExportException if operation was not successful
* @throws CmsRoleViolationException if the current user has not the required role
* @throws CmsXmlException if the manifest of the import could not be unmarshalled
* @throws CmsException in case of errors accessing the VFS
*/
void importData(CmsObject cms, I_CmsReport report)
throws CmsXmlException, CmsImportExportException, CmsRoleViolationException, CmsException;
/**
* Imports the data into the Cms.<p>
*
* @param cms the current OpenCms context object
* @param importFile the name (absolute path) of the resource (zip file or folder) to be imported
* @param importPath the name (absolute path) of the destination folder in the Cms (if required)
* @param report a Cms report to print log messages
*
* @throws CmsImportExportException if operation was not successful
* @throws CmsRoleViolationException if the current user has not the required role
* @throws CmsXmlException if the manifest of the import could not be unmarshalled
* @throws CmsException in case of errors accessing the VFS
*
* @deprecated use {@link #importData(CmsObject, I_CmsReport)} instead
*/
void importData(CmsObject cms, String importFile, String importPath, I_CmsReport report)
throws CmsXmlException, CmsImportExportException, CmsRoleViolationException, CmsException;
/**
* Checks, if this import/export handler matches with a specified manifest document of an import,
* so that it is able to import the data listed in the manifest document.<p>
*
* @param manifest the manifest.xml of the import as a dom4j XML document
* @return true, this handler is able to import the data listed in the manifest document
*/
boolean matches(Document manifest);
/**
* Sets the description of this import/export handler.<p>
* The description is useful to print some info about the purpose of this handler.<p>
*
* @param description the description of this import/export handler
*/
void setDescription(String description);
/**
* Sets the import parameters.<p>
*
* @param parameters the import parameters to set
*/
void setImportParameters(CmsImportParameters parameters);
}