public WorkerForm(MainForm mf)
{
MForm = mf;
setProgressD = new SetProgress(OutputProgress);
InitializeComponent();
}
// TODO: 如何中断长操作?
// parameters:
// strFacetDefXml 分面特性定义XML片断
// nMaxRecords 处理的最多记录数。如果 == -1，表示不限制
public static int DoFilter(
OpacApplication app,
LibraryChannel channel,
string strResultsetName,
string strFilterFileName,
int nMaxRecords,
SetProgress setprogress,
ref Hashtable result_table,
out long lOuputHitCount,
// out string strFacetDefXml,
out string strError)
{
strError = "";
lOuputHitCount = 0;
long lRet = 0;
int nRet = 0;
// strFacetDefXml = "";
if (result_table == null)
{
result_table = new Hashtable();
}
FilterHost host = new FilterHost();
LoanFilterDocument filter = null;
nRet = app.PrepareMarcFilter(
host,
strFilterFileName,
out filter,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
try
{
/*
* XmlNode node = filter.Dom.DocumentElement.SelectSingleNode("facetDef");
* if (node != null)
* {
* strFacetDefXml = node.OuterXml;
* }
* */
long lStart = 0;
// int nCount = 0;
for (; ;)
{
Record[] records = null;
// return:
// -1 出错
// >=0 结果集内记录的总数(注意，并不是本批返回的记录数)
lRet = channel.GetSearchResult(
null,
"#" + strResultsetName,
lStart,
100,
"id,xml",
"zh",
out records,
out strError);
if (lRet == -1)
{
return(-1);
}
lOuputHitCount = lRet;
long lCount = lRet;
if (nMaxRecords != -1)
{
lCount = Math.Min(lCount, nMaxRecords);
}
if (setprogress != null)
{
setprogress(lCount, lStart);
}
foreach (Record record in records)
{
// 2014/12/21
if (string.IsNullOrEmpty(record.RecordBody.Xml) == true)
{
continue;
}
// 如果必要,转换为MARC格式,调用filter
string strOutMarcSyntax = "";
string strMarc = "";
// 将MARCXML格式的xml记录转换为marc机内格式字符串
// parameters:
// bWarning ==true, 警告后继续转换,不严格对待错误; = false, 非常严格对待错误,遇到错误后不继续转换
// strMarcSyntax 指示marc语法,如果==""，则自动识别
// strOutMarcSyntax out参数，返回marc，如果strMarcSyntax == ""，返回找到marc语法，否则返回与输入参数strMarcSyntax相同的值
nRet = MarcUtil.Xml2Marc(record.RecordBody.Xml,
true,
"", // this.CurMarcSyntax,
out strOutMarcSyntax,
out strMarc,
out strError);
if (nRet == -1)
{
strError = "转换书目记录 " + record.Path + " 的 XML 格式到 MARC 时出错: " + strError;
goto ERROR1;
}
host.RecPath = record.Path;
host.App = app;
host.ResultParams = new KeyValueCollection();
nRet = filter.DoRecord(null,
strMarc,
strOutMarcSyntax,
0,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
nRet = AddItems(ref result_table,
host.ResultParams,
record.Path,
out strError);
if (nRet == -1)
{
return(-1);
}
}
if (records.Length <= 0 // < 100
)
{
break;
}
lStart += records.Length;
// nCount += records.Length;
if (lStart >= lCount)
{
if (setprogress != null)
{
setprogress(lCount, lCount);
}
break;
}
}
}
catch (Exception ex)
{
strError = "filter.DoRecord error: " + ExceptionUtil.GetDebugText(ex);
return(-1);
}
finally
{
// 归还对象
filter.FilterHost = null; // 2016/1/23
app.Filters.SetFilter(strFilterFileName, filter);
}
return(0);
ERROR1:
return(-1);
}
private void ReportProgress(int progressPercentage)
{
SetProgress sp = new SetProgress(this._setProgress);
this.Invoke(sp, progressPercentage);
}
public static async Task <String> GetFellowUrls(String psnPath, SetProgressStart setProgressStart, SetProgress setProgress, SetProgressFinish setProgressFinish)
{
if (Regex.IsMatch(psnPath, "_[0-1]?[0-9].pkg", RegexOptions.IgnoreCase))
{
setProgressStart();
psnPath = await Task <String> .Factory.StartNew(() =>
{
StringBuilder sb = new StringBuilder();
Int32 i = 0;
while (true)
{
String newPath = Regex.Replace(psnPath, "_[0-1]?[0-9].pkg", $"_{i}.pkg");
Application.Current.Dispatcher.Invoke((Action) delegate
{
setProgress(new Uri(newPath).Segments.Last());
});
if (IsNetworkLastFilet(newPath))
{
break;
}
else
{
sb.AppendLine(newPath);
i++;
}
}
Application.Current.Dispatcher.Invoke((Action) delegate
{
setProgressFinish();
});
return(sb.ToString());
});
}
return(psnPath);
}