/// <summary>
/// 为指定用户生成指定附件的拷贝
/// </summary>
/// <param name="attachment">指定附件实体</param>
/// <param name="userId">指定用户的id</param>
/// <returns>新附件实体</returns>
public T CloneForUser(T attachment, long userId)
{
//复制数据库记录
T newAttachment = (T) new Attachment();
newAttachment.ContentType = attachment.ContentType;
newAttachment.FileLength = attachment.FileLength;
newAttachment.FriendlyFileName = attachment.FriendlyFileName;
newAttachment.Height = attachment.Height;
newAttachment.MediaType = attachment.MediaType;
newAttachment.OwnerId = userId;
newAttachment.TenantTypeId = attachment.TenantTypeId;
newAttachment.UserDisplayName = userService.GetUser(userId).DisplayName;
newAttachment.UserId = userId;
newAttachment.Width = attachment.Width;
newAttachment.FileName = newAttachment.GenerateFileName();
EventBus <T> .Instance().OnBefore(newAttachment, new CommonEventArgs(EventOperationType.Instance().Create()));
attachmentRepository.Insert(newAttachment);
EventBus <T> .Instance().OnAfter(newAttachment, new CommonEventArgs(EventOperationType.Instance().Create()));
//复制文件
Stream stream = null;
try
{
IStoreFile file = StoreProvider.GetFile(attachment.GetRelativePath(), attachment.FileName);
stream = file.OpenReadStream();
StoreProvider.AddOrUpdateFile(newAttachment.GetRelativePath(), newAttachment.FileName, stream);
}
catch
{
}
finally
{
if (stream != null)
{
stream.Close();
stream.Dispose();
}
}
//根据不同租户类型的设置生成不同尺寸的图片，用于图片直连访问
if (newAttachment.MediaType == MediaType.Image)
{
TenantAttachmentSettings tenantAttachmentSettings = TenantAttachmentSettings.GetRegisteredSettings(newAttachment.TenantTypeId);
if (tenantAttachmentSettings != null && tenantAttachmentSettings.ImageSizeTypes != null && tenantAttachmentSettings.ImageSizeTypes.Count > 0)
{
foreach (var imageSizeType in tenantAttachmentSettings.ImageSizeTypes)
{
IStoreFile file = StoreProvider.GetResizedImage(newAttachment.GetRelativePath(), newAttachment.FileName, imageSizeType.Size, imageSizeType.ResizeMethod);
}
}
}
return(newAttachment);
}
/// <summary>
/// 获取不同尺寸的Logo
/// </summary>
/// <param name="associateId"></param>
/// <param name="imageSizeTypeKey"></param>
/// <returns></returns>
public IStoreFile GetResizedLogo(object associateId, string imageSizeTypeKey)
{
IStoreFile logoFile = null;
if (TenantLogoSettings.ImageSizeTypes == null || !TenantLogoSettings.ImageSizeTypes.ContainsKey(imageSizeTypeKey))
{
logoFile = GetLogo(associateId);
}
else
{
var pair = TenantLogoSettings.ImageSizeTypes[imageSizeTypeKey];
logoFile = StoreProvider.GetResizedImage(GetLogoRelativePath(associateId), GetLogoFileName(associateId), pair.Key, pair.Value);
}
return(logoFile);
}
/// <summary>
/// 上传Logo
/// </summary>
/// <param name="associateId"></param>
/// <param name="stream"></param>
/// <returns>上传文件的相对路径（包含文件名）</returns>
public string UploadLogo(object associateId, Stream stream)
{
string relativeFileName = string.Empty;
if (stream != null)
{
ILogoSettingsManager logoSettingsManager = DIContainer.Resolve <ILogoSettingsManager>();
LogoSettings logoSettings = logoSettingsManager.Get();
//检查是否需要缩放原图
Image image = Image.FromStream(stream);
if (image.Height > this.TenantLogoSettings.MaxHeight || image.Width > this.TenantLogoSettings.MaxWidth)
{
stream = ImageProcessor.Resize(stream, this.TenantLogoSettings.MaxWidth, this.TenantLogoSettings.MaxHeight, logoSettings.ResizeMethod);
}
string relativePath = GetLogoRelativePath(associateId);
string fileName = GetLogoFileName(associateId);
relativeFileName = relativePath + "\\" + fileName;
StoreProvider.AddOrUpdateFile(relativePath, fileName, stream);
stream.Dispose();
//根据不同租户类型的设置生成不同尺寸的图片，用于图片直连访问
if (this.TenantLogoSettings.ImageSizeTypes != null && this.TenantLogoSettings.ImageSizeTypes.Count > 0)
{
foreach (var imageSizeType in this.TenantLogoSettings.ImageSizeTypes.Values)
{
string sizedFileName = StoreProvider.GetSizeImageName(fileName, imageSizeType.Key, imageSizeType.Value);
StoreProvider.DeleteFile(relativePath, sizedFileName);
IStoreFile file = StoreProvider.GetResizedImage(relativePath, fileName, imageSizeType.Key, imageSizeType.Value);
}
}
}
return(relativeFileName);
}