// TODO: 预先将AppInfo中值取出，加快速度
// return:
// -1 出错
// 0 未发生改变
// 1 发生了改变
int ModifyField998(ref string strMARC,
DateTime now,
out string strError)
{
strError = "";
// int nRet = 0;
bool bChanged = false;
string strField998 = MarcUtil.GetField(strMARC,
"998");
if (strField998 == null)
{
strError = "GetField() 998 error";
return(-1);
}
if (String.IsNullOrEmpty(strField998) == true ||
strField998.Length < 5)
{
strField998 = "998 ";
}
// state
string strStateAction = Program.MainForm.AppInfo.GetString(
"change_biblio_param",
"state",
"<不改变>");
if (strStateAction != "<不改变>")
{
string strState = MarcUtil.GetSubfieldContent(strField998,
"s");
if (strStateAction == "<增、减>")
{
string strAdd = Program.MainForm.AppInfo.GetString(
"change_biblio_param",
"state_add",
"");
string strRemove = Program.MainForm.AppInfo.GetString(
"change_biblio_param",
"state_remove",
"");
string strOldState = strState;
if (String.IsNullOrEmpty(strAdd) == false)
{
StringUtil.SetInList(ref strState, strAdd, true);
}
if (String.IsNullOrEmpty(strRemove) == false)
{
StringUtil.SetInList(ref strState, strRemove, false);
}
if (strOldState != strState)
{
MarcUtil.ReplaceSubfieldContent(ref strField998,
"s", strState);
bChanged = true;
}
}
else
{
if (strStateAction != strState)
{
MarcUtil.ReplaceSubfieldContent(ref strField998,
"s", strStateAction);
bChanged = true;
}
}
}
// time
string strTimeAction = Program.MainForm.AppInfo.GetString(
"change_biblio_param",
"opertime",
"<不改变>");
if (strTimeAction != "<不改变>")
{
string strTime = MarcUtil.GetSubfieldContent(strField998,
"u");
DateTime time = new DateTime(0);
if (strTimeAction == "<当前时间>")
{
time = now;
}
else if (strTimeAction == "<清除>")
{
}
else if (strTimeAction == "<指定时间>")
{
string strValue = Program.MainForm.AppInfo.GetString(
"change_biblio_param",
"opertime_value",
"");
if (String.IsNullOrEmpty(strValue) == true)
{
strError = "当进行 <指定时间> 方式的修改时，所指定的时间值不能为空";
return(-1);
}
try
{
time = DateTime.Parse(strValue);
}
catch (Exception ex)
{
strError = "无法解析时间字符串 '" + strValue + "' :" + ex.Message;
return(-1);
}
}
else
{
// 不支持
strError = "不支持的时间动作 '" + strTimeAction + "'";
return(-1);
}
string strOldTime = strTime;
if (strTimeAction == "<清除>")
{
strTime = "";
}
else
{
strTime = time.ToString("u");
}
if (strOldTime != strTime)
{
MarcUtil.ReplaceSubfieldContent(ref strField998,
"u", strTime);
bChanged = true;
}
}
// batchno
string strBatchNoAction = Program.MainForm.AppInfo.GetString(
"change_biblio_param",
"batchNo",
"<不改变>");
if (strBatchNoAction != "<不改变>")
{
string strBatchNo = MarcUtil.GetSubfieldContent(strField998,
"a");
if (strBatchNo != strBatchNoAction)
{
MarcUtil.ReplaceSubfieldContent(ref strField998,
"a", strBatchNoAction);
bChanged = true;
}
}
if (bChanged == false)
{
return(0);
}
//
MarcUtil.ReplaceField(ref strMARC,
"998",
0,
strField998);
return(1);
}