/**
* Vosao CMS. Simple CMS for Google App Engine.
*
* Copyright (C) 2009-2010 Vosao development team.
*
* 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.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* email: vosao.dev@gmail.com
*/
package org.vosao.service.back.impl;
import java.io.UnsupportedEncodingException;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang.StringUtils;
import org.vosao.entity.FileEntity;
import org.vosao.entity.FolderEntity;
import org.vosao.entity.helper.FileHelper;
import org.vosao.i18n.Messages;
import org.vosao.service.ServiceResponse;
import org.vosao.service.back.FileService;
import org.vosao.service.impl.AbstractServiceImpl;
import org.vosao.service.vo.FileVO;
import org.vosao.utils.FolderUtil;
import org.vosao.utils.MimeType;
import org.vosao.utils.StrUtil;
/**
*
* @author Alexander Oleynik
*
*/
public class FileServiceImpl extends AbstractServiceImpl
implements FileService {
@Override
public List<FileEntity> getByFolder(Long folderId) {
List<FileEntity> result = getDao().getFileDao().getByFolder(folderId);
Collections.sort(result, new FileHelper.NameAsc());
return result;
}
@Override
public ServiceResponse deleteFiles(List<String> fileIds) {
getBusiness().getFileBusiness().remove(StrUtil.toLong(fileIds));
return new ServiceResponse("success", Messages.get(
"files.success_delete"));
}
@Override
public String getFilePath(Long fileId) {
FileEntity file = getDao().getFileDao().getById(fileId);
if (file != null) {
FolderEntity folder = getDao().getFolderDao().getById(
file.getFolderId());
return "/file" + getBusiness().getFolderBusiness().getFolderPath(
folder) + "/" + file.getFilename();
}
return "";
}
@Override
public ServiceResponse updateContent(Long fileId, String content) {
FileEntity file = getDao().getFileDao().getById(fileId);
if (file != null) {
try {
getDao().getFileDao().save(file, content.getBytes("UTF-8"));
FolderEntity folder = getDao().getFolderDao().getById(
file.getFolderId());
String cacheUrl = getBusiness().getFolderBusiness()
.getFolderPath(folder) + "/" + file.getFilename();
getBusiness().getSystemService().getFileCache().remove(cacheUrl);
return ServiceResponse.createSuccessResponse(
Messages.get("file.success_update"));
} catch (UnsupportedEncodingException e) {
return ServiceResponse.createErrorResponse(
Messages.get("unsupported_encoding"));
}
}
else {
return ServiceResponse.createErrorResponse(Messages.get(
"file.not_found"));
}
}
@Override
public FileVO getFile(Long id) {
return getFile(id, "UTF-8");
}
@Override
public FileVO getFile(Long id, String encoding) {
try {
FileEntity file = getDao().getFileDao().getById(id);
FileVO vo = new FileVO(file);
FolderEntity folder = getDao().getFolderDao().getById(file
.getFolderId());
vo.setLink("/file" + getBusiness().getFolderBusiness()
.getFolderPath(folder) + "/" + file.getFilename());
String ext = FolderUtil.getFileExt(file.getFilename());
vo.setTextFile(getBusiness().getConfigBusiness().isTextFileExt(ext));
vo.setImageFile(getBusiness().getConfigBusiness()
.isImageFileExt(ext));
if (vo.isTextFile()) {
vo.setContent(new String(getDao().getFileDao()
.getFileContent(file), encoding));
}
return vo;
}
catch (Exception e) {
logger.error(e.getMessage());
return null;
}
}
@Override
public ServiceResponse saveFile(Map<String, String> vo) {
FileEntity file = null;
if (!StringUtils.isEmpty(vo.get("id"))) {
file = getDao().getFileDao().getById(Long.valueOf(vo.get("id")));
}
if (file == null) {
file = new FileEntity();
}
file.setFilename(vo.get("name"));
file.setTitle(vo.get("title"));
file.setFolderId(Long.valueOf(vo.get("folderId")));
file.setLastModifiedTime(new Date());
List<String> errors = getBusiness().getFileBusiness()
.validateBeforeUpdate(file);
if (errors.isEmpty()) {
FolderEntity folder = getDao().getFolderDao().getById(
file.getFolderId());
file.setMimeType(MimeType.getContentTypeByExt(
FolderUtil.getFileExt(file.getFilename())));
String cacheUrl = getBusiness().getFolderBusiness()
.getFolderPath(folder) + "/" + file.getFilename();
getBusiness().getSystemService().getFileCache().remove(cacheUrl);
getDao().getFileDao().save(file);
return ServiceResponse.createSuccessResponse(
Messages.get("file.success_update"));
}
else {
return ServiceResponse.createErrorResponse(
Messages.get("errors_occured"), errors);
}
}
}