public void CreateFileTestCase()
{
//加载本地文件，并实例一个IMongoFile
IMongoFile file = MongoEntity.CreateFile <MyFile>(@"c:\pic1.jpg", "pic2.jpg", "jpg");
//下载文件，等同于文件另存为
file.Download(@"c:\beforesave.jpg");
//文件保存至数据库
file.Save();
//从数据中加载刚才保存的文件
IMongoFile fs = MongoEntity.LoadFile <MyFile>(file.Id);
//将从数据中加载的文件下载
fs.Download(@"c:\aftersave.jpg");
//根据数据库中的文件名检索文件
var files = MongoEntity.LoadAllFiles <MyFile>("pic2.jpg");
//根据文件id，将数据库中的文件下载到本地
MongoEntity.DownloadFile <MyFile>(file.Id, @"c:\copy.jpg");
Assert.AreEqual(file.Id, fs.Id);
Assert.AreEqual(1, files.Count);
Assert.AreEqual(file.Id, files[0].Id);
Assert.IsNull(file.MD5);
Assert.IsNotNull(fs.MD5);
Assert.AreEqual(file.Size, fs.Size);
Assert.AreEqual(file.Data, fs.Data);
}
internal static MongoGridFSFileInfo DBSaveGridFS(Type type, IMongoFile file)
{
using (IDBClient client = DBFactory.GetClient(type))
{
using (Stream stream = File.OpenRead(file.LocalFileName))
{
return(client.GridFS.Upload(stream, file.RemoteFileName, BuildMongoGridFSCreateOptions(file)));//.Upload(file.FileName);
}
}
}
//internal static IMongoFile DBLoadGridFS(IMongoFile file)
//{
// using (IDBClient client = DBFactory.GetClient(typeof(IMongoFile)))
// {
// file.Attach(client.GridFS.FindOneById(file.Id));
// return file;
// }
//}
internal static MongoGridFSCreateOptions BuildMongoGridFSCreateOptions(IMongoFile file)
{
MongoGridFSCreateOptions options = new MongoGridFSCreateOptions();
options.Id = file.Id;
options.ChunkSize = file.Size;
options.ContentType = file.ContentType;
options.Aliases = file.Aliases;
options.Metadata = file.Metadata;
options.UploadDate = file.UploadDate;
return(options);
}
internal static MongoGridFSFileInfo DBSaveGridFS <TFileType>(Type type, IMongoFile file) where TFileType : IMongoFile
{
return(DBSaveGridFS(typeof(TFileType), file));
}
