// 从 .dp2bak 文件中读出每个资源的主要信息
// 本函数调用前，文件指针在整个记录的开始位置
// return:
// -1 出错
// 0 正常
// 1 结束。此次API不返回有效的XML记录
int ReadResFrameInfo(
out List<OneRes> reslist,
out string strError)
{
strError = "";
reslist = new List<OneRes>();
long lStart = this.Stream.Position;
byte[] data = new byte[8];
int nRet = this.Stream.Read(data, 0, 8);
if (nRet == 0)
return 1; // 已经结束
if (nRet < 8)
{
strError = "read whole length error...";
return -1;
}
// 毛长度
long lLength = BitConverter.ToInt64(data, 0);
#if NO
if (bSkip == true)
{
file.Seek(lLength, SeekOrigin.Current);
return 0;
}
#endif
for (int i = 0; ; i++)
{
if (this.Stream.Position - lStart >= lLength + 8)
break;
long lBodyStart = 0;
long lBodyLength = 0;
// 1. 从输入流中得到strMetadata,与body(body放到一个临时文件里)
string strMetaDataXml = "";
nRet = GetResInfo(this.Stream,
i == 0 ? true : false,
out strMetaDataXml,
out lBodyStart,
out lBodyLength,
out strError);
if (nRet == -1)
return -1;
if (lBodyLength == 0)
continue; // 空包不需上载
OneRes res = new OneRes();
res.MetadataXml = strMetaDataXml;
res.StartOffs = lBodyStart;
res.Length = lBodyLength;
reslist.Add(res);
// 取出原始记录路径
XmlDocument metadataDom = new XmlDocument();
try
{
metadataDom.LoadXml(strMetaDataXml);
}
catch (Exception ex)
{
strError = "加载 metadataxml 到 DOM 时出错:" + ex.Message;
return -1;
}
res.Path = DomUtil.GetAttr(metadataDom.DocumentElement, "path");
string strTimeStamp = DomUtil.GetAttr(metadataDom.DocumentElement, "timestamp");
res.Timestamp = ByteArray.GetTimeStampByteArray(strTimeStamp);
}
return 0;
}
// 上载一个res
// parameters:
// strRecordPath 主记录的路径
// inputfile: 源流
// bIsFirstRes: 是否是第一个资源(xml)
// strError: error info
// return:
// -2 片断中发现时间戳不匹配。本函数调主可重上载整个资源
// -1 error
// 0 successed
public static int UploadOneRes(
IWin32Window owner,
Stop stop,
RmsChannel channel,
ref string strRecordPath,
Stream inputfile,
OneRes res,
// ref DbNameMap map,
bool bIsFirstRes,
string strCount,
ref bool bDontPromptTimestampMismatchWhenOverwrite,
out string strError)
{
strError = "";
int nRet = 0;
if (res.Length == 0)
{
Debug.Assert(false, "");
return 0; // 空包不需上载
}
#if NO
// 2.为上载做准备
XmlDocument metadataDom = new XmlDocument();
try
{
metadataDom.LoadXml(res.MetadataXml);
}
catch (Exception ex)
{
strError = "加载 metadataxml 到 DOM 时出错: " + ex.Message;
goto ERROR1;
}
XmlNode node = metadataDom.DocumentElement;
string strResPath = DomUtil.GetAttr(node, "path");
string strTargetPath = "";
// string strLocalPath = DomUtil.GetAttr(node,"localpath");
// string strMimeType = DomUtil.GetAttr(node,"mimetype");
string strTimeStamp = DomUtil.GetAttr(node, "timestamp");
// 注意,strLocalPath并不是要上载的body文件,它只用来作元数据\
// body文件为strBodyTempFileName
#endif
// string strTargetPath = strRecordPath;
// 3.将body文件拆分成片断进行上载
string[] ranges = null;
if (res.Length == 0)
{
// 空文件
ranges = new string[1];
ranges[0] = "";
}
else
{
string strRange = "";
strRange = "0-" + Convert.ToString(res.Length - 1);
// 按照100K作为一个chunk
ranges = RangeList.ChunkRange(strRange,
100 * 1024
);
}
byte[] timestamp = res.Timestamp;
byte[] output_timestamp = null;
REDOWHOLESAVE:
string strOutputPath = "";
string strWarning = "";
for (int j = 0; j < ranges.Length; j++)
{
REDOSINGLESAVE:
Application.DoEvents(); // 出让界面控制权
if (stop.State != 0)
{
DialogResult result = MessageBox.Show(owner,
"确实要中断当前批处理操作?",
"导入数据",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question,
MessageBoxDefaultButton.Button2);
if (result == DialogResult.Yes)
{
strError = "用户中断";
goto ERROR1;
}
else
{
stop.Continue();
}
}
string strWaiting = "";
if (j == ranges.Length - 1)
strWaiting = " 请耐心等待...";
string strPercent = "";
RangeList rl = new RangeList(ranges[j]);
if (rl.Count >= 1)
{
double ratio = (double)((RangeItem)rl[0]).lStart / (double)res.Length;
strPercent = String.Format("{0,3:N}", ratio * (double)100) + "%";
}
if (stop != null)
stop.SetMessage("正在保存 " + ranges[j] + "/"
+ Convert.ToString(res.Length)
+ " " + strPercent + " " + strRecordPath + strWarning + strWaiting + " " + strCount);
inputfile.Seek(res.StartOffs, SeekOrigin.Begin);
long lRet = channel.DoSaveResObject(strRecordPath,
inputfile,
res.Length,
"", // style
res.MetadataXml,
ranges[j],
j == ranges.Length - 1 ? true : false, // 最尾一次操作，提醒底层注意设置特殊的WebService API超时时间
timestamp,
out output_timestamp,
out strOutputPath,
out strError);
// stop.SetProgressValue(inputfile.Position);
strWarning = "";
if (lRet == -1)
{
if (channel.ErrorCode == ChannelErrorCode.TimestampMismatch)
{
string strDisplayRecPath = strOutputPath;
if (string.IsNullOrEmpty(strDisplayRecPath) == true)
strDisplayRecPath = strRecordPath;
if (bDontPromptTimestampMismatchWhenOverwrite == true)
{
timestamp = new byte[output_timestamp.Length];
Array.Copy(output_timestamp, 0, timestamp, 0, output_timestamp.Length);
strWarning = " (时间戳不匹配, 自动重试)";
if (ranges.Length == 1 || j == 0)
goto REDOSINGLESAVE;
goto REDOWHOLESAVE;
}
DialogResult result = MessageDlg.Show(owner,
"保存 '" + strDisplayRecPath + "' (片断:" + ranges[j] + "/总尺寸:" + Convert.ToString(res.Length)
+ ") 时发现时间戳不匹配。详细情况如下：\r\n---\r\n"
+ strError + "\r\n---\r\n\r\n是否以新时间戳强行覆盖保存?\r\n注：\r\n[是] 强行覆盖保存\r\n[否] 忽略当前记录或资源保存，但继续后面的处理\r\n[取消] 中断整个批处理",
"导入数据",
MessageBoxButtons.YesNoCancel,
MessageBoxDefaultButton.Button1,
ref bDontPromptTimestampMismatchWhenOverwrite);
if (result == DialogResult.Yes)
{
if (output_timestamp != null)
{
timestamp = new byte[output_timestamp.Length];
Array.Copy(output_timestamp, 0, timestamp, 0, output_timestamp.Length);
}
else
{
timestamp = output_timestamp;
}
strWarning = " (时间戳不匹配, 应用户要求重试)";
if (ranges.Length == 1 || j == 0)
goto REDOSINGLESAVE;
goto REDOWHOLESAVE;
}
if (result == DialogResult.No)
{
return 0; // 继续作后面的资源
}
if (result == DialogResult.Cancel)
{
strError = "用户中断";
goto ERROR1; // 中断整个处理
}
}
goto ERROR1;
}
timestamp = output_timestamp;
}
// 考虑到保存第一个资源的时候，id可能为“?”，因此需要得到实际的id值
if (bIsFirstRes)
strRecordPath = strOutputPath;
return 0;
ERROR1:
return -1;
}
