private int CompareFile(IFile file1, IFile file2, FileOrderBy orderBy)
{
switch (orderBy)
{
case FileOrderBy.Name:
return(file2.Name.CompareTo(file1.Name));
case FileOrderBy.Size:
return(file2.Size.CompareTo(file1.Size));
case FileOrderBy.CreateDate:
return(file2.CreateDate.CompareTo(file1.CreateDate));
case FileOrderBy.Type:
return(file2.TypeName.CompareTo(file1.TypeName));
}
return(0);
}
private void SortFiles(IList <IFile> files, FileOrderBy orderBy, bool isDesc)
{
if (orderBy == FileOrderBy.None)
{
return;
}
int v;
IFile temp;
for (int i = 0; i < files.Count - 1; i++)
{
for (int j = i + 1; j < files.Count; j++)
{
v = CompareFile(files[i], files[j], orderBy);
if (isDesc)
{
if (v > 0)
{
temp = files[i];
files[i] = files[j];
files[j] = temp;
}
}
else
{
if (v < 0)
{
temp = files[j];
files[j] = files[i];
files[i] = temp;
}
}
}
}
}
/// <summary>
/// ȡ�ø�Ŀ¼�ļ�����һ��Ŀ¼�������ļ����ļ��С�
/// </summary>
/// <param name="userID">��ǰ�û���ID��</param>
/// <param name="directoryID">���ļ��е�ID��</param>
/// <param name="directories">������ļ���ʵ��<see cref="DiskDirectory"/>���б��</param>
/// <param name="files">������ļ�ʵ��<see cref="DiskFile"/>�б��</param>
/// <param name="totalSize">��ǰ��Ŀ¼���������ļ��Ĵ�С��</param>
/// <returns>����ɹ�ȡ����<c>true</c>,����<c>false</c>��</returns>
public List <IFile> GetDiskFiles(int userID, int directoryID, out DiskDirectoryCollection directories, out DiskFileCollection files, FileOrderBy orderBy, bool isDesc, ExtensionList fileTypes)
{
List <IFile> dirAndFiles;
int fileTypeKey = fileTypes == null || fileTypes.Count == 0?0: fileTypes.ToString("").GetHashCode();
string cachekeyOfDirectorys = string.Format(cacheKey_directoryList, userID, directoryID);
string cacheKeyOfFiles = string.Format(cacheKey_fileList, userID, directoryID, fileTypeKey);
if (!CacheUtil.TryGetValue <DiskFileCollection>(cacheKey_fileList, out files) ||
CacheUtil.TryGetValue <DiskDirectoryCollection>(cachekeyOfDirectorys, out directories))
{
DiskDao.Instance.GetDiskFiles(userID, directoryID, out directories, out files);
CacheUtil.Set <DiskFileCollection>(cacheKeyOfFiles, files);
CacheUtil.Set <DiskDirectoryCollection>(cachekeyOfDirectorys, directories);
}
/*���´������ܺܲ ԭ����3.0��BO������Ӧ�����ܣ� ��ʱ��Ӧ����������ѭ������*/
string cacheKeyOfAllFiles = string.Format(cacheKey_directoryList, userID, directoryID, orderBy, isDesc);
if (!CacheUtil.TryGetValue <List <IFile> >(cacheKeyOfAllFiles, out dirAndFiles))
{
dirAndFiles = new List <IFile>(directories.Count + files.Count);
if (orderBy != FileOrderBy.None)
{
DiskFile temp;
int v;
for (int i = 0; i < files.Count - 1; i++)
{
for (int j = i + 1; j < files.Count; j++)
{
v = CompareFile(files[i], files[j], orderBy);
if (isDesc)
{
if (v > 0)
{
temp = files[i];
files[i] = files[j];
files[j] = temp;
}
}
else
{
if (v < 0)
{
temp = files[j];
files[j] = files[i];
files[i] = temp;
}
}
}
}
DiskDirectory tempDir;
for (int i = 0; i < directories.Count - 1; i++)
{
for (int j = i + 1; j < directories.Count; j++)
{
v = CompareFile(directories[i], directories[j], orderBy);
if (isDesc)
{
if (v > 0)
{
tempDir = directories[i];
directories[i] = directories[j];
directories[j] = tempDir;
}
}
else
{
if (v < 0)
{
tempDir = directories[j];
directories[j] = directories[i];
directories[i] = tempDir;
}
}
}
}
}
if (orderBy == FileOrderBy.Type && isDesc == false)
{
foreach (DiskFile file in files)
{
if (fileTypes != null && fileTypes.Count > 0 && !fileTypes.Contains(file.ExtensionName))
{
continue;
}
dirAndFiles.Add(file);
}
foreach (IFile dir in directories)
{
dirAndFiles.Add(dir);
}
}
else
{
foreach (IFile dir in directories)
{
dirAndFiles.Add(dir);
}
foreach (DiskFile file in files)
{
if (fileTypes != null && fileTypes.Count > 0 && !fileTypes.Contains(file.ExtensionName))
{
continue;
}
dirAndFiles.Add(file);
}
}
CacheUtil.RemoveBySearch(string.Format(cacheKey_allFileListRoot, userID, directoryID));
CacheUtil.Set <List <IFile> >(cacheKeyOfAllFiles, dirAndFiles);
}
return(dirAndFiles);
}
public List <IFile> GetDiskFiles(int userID, int directoryID, out DiskDirectoryCollection directories, out DiskFileCollection files, FileOrderBy orderBy, bool isDesc)
{
return(GetDiskFiles(userID, directoryID, out directories, out files, orderBy, isDesc, null));
}
