private PracticalManager()
{
startIndex = 0;
practicalCount = 0;
practicalContentBufferLength = null;
templateFileName = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, TEMPLATE_FILE_NAME);
practicalFileFolder = Path.Combine(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, PRACTICAL_FILE_FOLDER), SingletonManager.Get <UserProcesser>().GetUser().ID);
practicalProcessFileName = Path.Combine(practicalFileFolder, PRACTICAL_PROCESS_FILE_NAME);
if (!Directory.Exists(practicalFileFolder))
{
Directory.CreateDirectory(practicalFileFolder);
}
}
public void ExportPractical(string fileName, HasDonePracticalItem[] hasDonePracticalItems)
{
FileStream[] readFsArray = null;
FileStream writeFs = null;
byte[] buffer = null;
byte[][] practicalFileNameBufferArray = null;
try
{
writeFs = new FileStream(fileName, FileMode.Create, FileAccess.Write);
PracticalItem[] items = GetAllPractical();
readFsArray = new FileStream[hasDonePracticalItems.Length];
practicalFileNameBufferArray = new byte[hasDonePracticalItems.Length][];
for (int i = 0; i < hasDonePracticalItems.Length; i++)
{
readFsArray[i] = new FileStream(Path.Combine(practicalFileFolder, hasDonePracticalItems[i].ID + ".pracd"), FileMode.Open, FileAccess.Read);
}
#region 写入学号
buffer = UTF8Encoding.UTF8.GetBytes(SingletonManager.Get <UserProcesser>().GetUser().ID);
writeFs.Write(BitConverter.GetBytes(buffer.Length), 0, sizeof(int));
writeFs.Write(buffer, 0, buffer.Length);
#endregion
#region 写入姓名
buffer = UTF8Encoding.UTF8.GetBytes(SingletonManager.Get <UserProcesser>().GetUser().Name);
writeFs.Write(BitConverter.GetBytes(buffer.Length), 0, sizeof(int));
writeFs.Write(buffer, 0, buffer.Length);
#endregion
#region 写入CPU序列号
buffer = UTF8Encoding.UTF8.GetBytes(SingletonManager.Get <UserProcesser>().GetUser().CPUID);
writeFs.Write(BitConverter.GetBytes(buffer.Length), 0, sizeof(int));
writeFs.Write(buffer, 0, buffer.Length);
#endregion
#region 写入文档个数
writeFs.Write(BitConverter.GetBytes(hasDonePracticalItems.Length), 0, sizeof(int));
#endregion
#region 写入文档名长度
for (int i = 0; i < hasDonePracticalItems.Length; i++)
{
practicalFileNameBufferArray[i] = UTF8Encoding.UTF8.GetBytes(items[hasDonePracticalItems[i].ID].Name);
writeFs.Write(BitConverter.GetBytes(practicalFileNameBufferArray[i].Length), 0, sizeof(int));
}
#endregion
#region 写入文档长度
for (int i = 0; i < hasDonePracticalItems.Length; i++)
{
writeFs.Write(BitConverter.GetBytes(readFsArray[i].Length - sizeof(long)), 0, sizeof(long));
}
#endregion
#region 写入文档名
for (int i = 0; i < hasDonePracticalItems.Length; i++)
{
writeFs.Write(practicalFileNameBufferArray[i], 0, practicalFileNameBufferArray[i].Length);
}
#endregion
#region 写入文档
for (int i = 0; i < hasDonePracticalItems.Length; i++)
{
readFsArray[i].Position = sizeof(long);
while (readFsArray[i].Position < readFsArray[i].Length)
{
buffer = new byte[readFsArray[i].Length - readFsArray[i].Position > BUFFER_PACKAGE_LENGTH ? BUFFER_PACKAGE_LENGTH : readFsArray[i].Length - readFsArray[i].Position];
readFsArray[i].Read(buffer, 0, buffer.Length);
writeFs.Write(buffer, 0, buffer.Length);
}
}
#endregion
}
finally
{
if (writeFs != null)
{
writeFs.Dispose();
}
if (readFsArray != null)
{
for (int i = 0; i < readFsArray.Length; i++)
{
if (readFsArray[i] != null)
{
readFsArray[i].Dispose();
}
}
}
}
}