public void AppendTextTest()
{
Assert.IsFalse(gridFS.Exists("HelloWorld.txt"));
using (var writer = gridFS.AppendText("HelloWorld.txt")) {
Assert.IsFalse(writer.BaseStream.CanRead);
Assert.IsTrue(writer.BaseStream.CanSeek);
Assert.IsTrue(writer.BaseStream.CanWrite);
writer.Write("동해물과");
}
Assert.IsTrue(gridFS.Exists("HelloWorld.txt"));
using (var writer = gridFS.AppendText("HelloWorld.txt")) {
writer.Write(" 백두산이");
}
var memoryStream = new MemoryStream();
gridFS.Download(memoryStream, "HelloWorld.txt");
var bytes = memoryStream.ToArray();
// 2-byte 문자열임을 나타내는 헤더값
StringTool.IsMultiByteString(bytes).Should().Be.True();
//Assert.AreEqual(0xEF, bytes[0]); // the BOM
//Assert.AreEqual(0xBB, bytes[1]);
//Assert.AreEqual(0xBF, bytes[2]);
// Header 값을 빼고, 한다.
// var text = Encoding.UTF8.GetString(bytes, 3, bytes.Length - 3);
var text = memoryStream.ToText(Encoding.UTF8);
Assert.AreEqual("동해물과 백두산이", text);
}
public void TestAppendText()
{
_gridFS.Delete(Query.Null);
Assert.IsFalse(_gridFS.Exists("HelloWorld.txt"));
using (var writer = _gridFS.AppendText("HelloWorld.txt"))
{
Assert.IsFalse(writer.BaseStream.CanRead);
Assert.IsTrue(writer.BaseStream.CanSeek);
Assert.IsTrue(writer.BaseStream.CanWrite);
writer.Write("Hello");
}
Assert.IsTrue(_gridFS.Exists("HelloWorld.txt"));
using (var writer = _gridFS.AppendText("HelloWorld.txt"))
{
writer.Write(" World");
}
var memoryStream = new MemoryStream();
_gridFS.Download(memoryStream, "HelloWorld.txt");
var bytes = memoryStream.ToArray();
Assert.AreEqual(0xEF, bytes[0]); // the BOM
Assert.AreEqual(0xBB, bytes[1]);
Assert.AreEqual(0xBF, bytes[2]);
var text = Encoding.UTF8.GetString(bytes, 3, bytes.Length - 3);
Assert.AreEqual("Hello World", text);
}
/// <summary>
/// 下载文件
/// </summary>
/// <param name="strFileName"></param>
public static void DownloadFile(String strLocalFileName, String strRemoteFileName)
{
MongoDatabase mongoDB = SystemManager.GetCurrentDataBase();
MongoGridFS gfs = mongoDB.GetGridFS(new MongoGridFSSettings());
gfs.Download(strLocalFileName, strRemoteFileName);
}
///在使用GirdFileSystem的时候，请注意：
///1.Windows 系统的文件名不区分大小写，不过，filename一定是区分大小写的，如果大小写不匹配的话，会发生无法找到文件的问题
///2.Download的时候，不能使用SlaveOk选项！
/// <summary>
/// 打开文件
/// </summary>
/// <param name="strFileName"></param>
public static void OpenFile(String strRemoteFileName)
{
MongoDatabase mongoDB = SystemManager.GetCurrentDataBase();
MongoGridFS gfs = mongoDB.GetGridFS(new MongoGridFSSettings());
String[] strLocalFileName = strRemoteFileName.Split(System.IO.Path.DirectorySeparatorChar);
try
{
if (!Directory.Exists(TempFileFolder))
{
Directory.CreateDirectory(TempFileFolder);
}
String LocalFileName = TempFileFolder + System.IO.Path.DirectorySeparatorChar + strLocalFileName[strLocalFileName.Length - 1];
gfs.Download(LocalFileName, strRemoteFileName);
System.Diagnostics.Process.Start(LocalFileName);
}
catch (System.ComponentModel.Win32Exception)
{
MyMessageBox.ShowEasyMessage("Error", "No Program can open this file");
}
catch (Exception ex)
{
SystemManager.ExceptionDeal(ex, "Error", "Exception happend when open file");
}
}
static void Main(string[] args)
{
MongoServer ms = MongoServer.Create();
string _dbName = "docs";
MongoDatabase md = ms.GetDatabase(_dbName);
if (!md.CollectionExists(_dbName))
{
md.CreateCollection(_dbName);
}
MongoCollection <Doc> _documents = md.GetCollection <Doc>(_dbName);
_documents.RemoveAll();
//add file to GridFS
MongoGridFS gfs = new MongoGridFS(md);
MongoGridFSFileInfo gfsi = gfs.Upload(@"c:\mongodb.rtf");
_documents.Insert(new Doc()
{
DocId = gfsi.Id.AsObjectId,
DocName = @"c:\foo.rtf"
}
);
foreach (Doc item in _documents.FindAll())
{
ObjectId _documentid = new ObjectId(item.DocId.ToString());
MongoGridFSFileInfo _fileInfo = md.GridFS.FindOne(Query.EQ("_id", _documentid));
gfs.Download(item.DocName, _fileInfo);
Console.WriteLine("Downloaded {0}", item.DocName);
Console.WriteLine("DocName {0} dowloaded", item.DocName);
}
Console.ReadKey();
}
public Dictionary <string, string> BuscarArquivo(string id, ref MemoryStream retorno)
{
var fileInfo = database.GridFS.FindOne(Query.EQ("_id", new BsonObjectId(new ObjectId(id))));
var mySetting = new MongoGridFSSettings();
var gfs = new MongoGridFS(server, database.Name, mySetting);
gfs.Download(retorno, fileInfo);
return(new Dictionary <string, string> {
{ fileInfo.ContentType, fileInfo.Name }
});
}
/// <summary>
/// 下载文档到本地
/// </summary>
/// <param name="localfile"></param>
/// <param name="remoteFile"></param>
public void Copy(string localfile, string remoteFile)
{
_logger.DebugFormat("Copy {0} to {1}.", localfile, remoteFile);
try
{
MongoGridFS fs = new MongoGridFS(_context.DataBase);
fs.Download(localfile, remoteFile);
}
catch (Exception ex)
{
_logger.Error(ex.Message);
_logger.Error(ex.StackTrace);
throw;
}
}
private static void Main()
{
var exit = false;
_mongoClient = new MongoClient("mongodb://localhost");
_db = new MongoGridFS(_mongoClient.GetServer(), "Default",
new MongoGridFSSettings());
while (!exit)
{
Console.Write(GetPrepend());
var command = Console.ReadLine();
Debug.Assert(command != null, "command != null");
if (command.Length == 0)
{
continue;
}
//What the f**k?
//Handles quotation marks in incoming commands
var result = command.Split('"')
.Select((element, index) => index % 2 == 0
? element.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
: new[] { element })
.SelectMany(element => element).ToList();
switch (result[0].ToLower())
{
case "exit":
exit = true;
break;
case "cd":
if (result.Count == 2)
{
if (result[1] == "..")
{
var sarray = _currentdirectory.Split('/').Where(x => x != "").ToArray();
var str = "/";
for (var i = 0; i < sarray.Length - 1; i++)
{
str += sarray[i] + "/";
}
_currentdirectory = str;
}
else
{
_currentdirectory += result[1] + "/";
}
}
else
{
Console.WriteLine(" Usage: cd <dir>");
}
break;
case "server":
_mongoClient = new MongoClient("mongodb://" + result[1]);
_db = new MongoGridFS(_mongoClient.GetServer(), "Default",
new MongoGridFSSettings());
break;
case "db":
_db = new MongoGridFS(_mongoClient.GetServer(), result[1],
new MongoGridFSSettings());
break;
case "ls":
if (_db != null)
{
var query = from file in _db.FindAll()
where file.Name.StartsWith(_currentdirectory)
select file;
foreach (var file in query)
{
Console.WriteLine(" " + file.Name);
}
}
break;
case "put":
if (result.Count == 2)
{
var file = new FileInfo(result[1]);
if (!file.Exists)
{
Console.WriteLine(" File doesn't exist!");
break;
}
Console.Write(" Uploading " + file.Name + "...");
Debug.Assert(_db != null, "_db != null");
_db.Upload(file.FullName, _currentdirectory + file.Name);
Console.WriteLine("Done!");
}
else if (result.Count == 3)
{
var file = new FileInfo(result[1]);
if (!file.Exists)
{
Console.WriteLine(" File doesn't exist!");
break;
}
Console.Write(" Uploading " + file.Name + "...");
Debug.Assert(_db != null, "_db != null");
_db.Upload(file.FullName, result[2]);
Console.WriteLine("Done!");
}
else
{
Console.WriteLine(" Usage: put <src> [dest]");
}
break;
case "get":
if (result.Count == 2)
{
Debug.Assert(_db != null, "_db != null");
if (!_db.Exists(result[1]))
{
Console.WriteLine(" File doesn't exist!");
break;
}
Console.Write(" Downloading " + result[1] + "...");
_db.Download(result[1], result[1]);
Console.WriteLine("Done!");
}
else if (result.Count == 3)
{
Debug.Assert(_db != null, "_db != null");
if (!_db.Exists(result[1]))
{
Console.WriteLine(" File doesn't exist!");
break;
}
Console.Write(" Downloading " + result[1] + "...");
_db.Download(result[2], result[1]);
Console.WriteLine("Done!");
}
else
{
Console.WriteLine(" Usage: get <src> [dest]");
}
break;
case "del":
if (result.Count == 2)
{
Debug.Assert(_db != null, "_db != null");
if (!_db.Exists(result[1]))
{
Console.WriteLine(" File doesn't exist!");
break;
}
_db.Delete(result[1]);
}
else
{
Console.WriteLine(" Usage: del <filename>");
}
break;
default:
Console.WriteLine(" Invalid Command");
break;
}
}
}
