int GetBrowseCols(List <string> pathlist,
List <ListViewItem> itemlist,
out string strError)
{
strError = "";
// 获得server url
if (String.IsNullOrEmpty(this.LibraryServerName) == true)
{
strError = "尚未指定服务器名";
return(-1);
}
dp2Server server = this.MainForm.Servers.GetServerByName(this.LibraryServerName);
if (server == null)
{
strError = "服务器名为 '" + this.LibraryServerName + "' 的服务器不存在...";
return(-1);
}
string strServerUrl = server.Url;
this.Channel = this.Channels.GetChannel(strServerUrl);
EnableControls(false);
stop.OnStop += new StopEventHandler(this.DoStop);
stop.Initial("正在填充浏览列 ...");
stop.BeginLoop();
this.Update();
this.MainForm.Update();
try
{
int nStart = 0;
int nCount = 0;
for (; ;)
{
nCount = pathlist.Count - nStart;
if (nCount > 100)
{
nCount = 100;
}
if (nCount <= 0)
{
break;
}
Application.DoEvents(); // 出让界面控制权
if (stop != null)
{
if (stop.State != 0)
{
strError = "用户中断";
return(-1);
}
}
stop.SetMessage("正在装入浏览信息 " + (nStart + 1).ToString() + " - " + (nStart + nCount).ToString());
string[] paths = new string[nCount];
pathlist.CopyTo(nStart, paths, 0, nCount);
DigitalPlatform.LibraryClient.localhost.Record[] searchresults = null;
long lRet = this.Channel.GetBrowseRecords(
this.stop,
paths,
"id,cols",
out searchresults,
out strError);
if (lRet == -1)
{
return(-1);
}
if (searchresults == null || searchresults.Length == 0)
{
strError = "searchresults == null || searchresults.Length == 0";
return(-1);
}
for (int i = 0; i < searchresults.Length; i++)
{
DigitalPlatform.LibraryClient.localhost.Record record = searchresults[i];
ListViewUtil.EnsureColumns(this.listView_browse,
2 + (record.Cols == null ? 0 : record.Cols.Length),
200);
ListViewItem item = itemlist[nStart + i];
item.Text = record.Path;
if (record.Cols != null)
{
for (int j = 0; j < record.Cols.Length; j++)
{
item.SubItems.Add(record.Cols[j]);
}
}
}
nStart += searchresults.Length;
}
}
finally
{
stop.EndLoop();
stop.OnStop -= new StopEventHandler(this.DoStop);
stop.Initial("");
EnableControls(true);
}
return(0);
}
// 初始化一个读者库的指纹缓存
// return:
// -1 出错
// >=0 实际发送给接口程序的事项数目
static int BuildOneDbCache(
LibraryChannel channel,
string strDir,
string strReaderDbName,
CancellationToken token,
out string strError)
{
strError = "";
int nRet = 0;
DpResultSet resultset = null;
bool bCreate = false;
Hashtable timestamp_table = new Hashtable(); // recpath --> fingerprint timestamp
ShowMessage(strReaderDbName);
// 结果集文件名
string strResultsetFilename = Path.Combine(strDir, strReaderDbName);
if (File.Exists(strResultsetFilename) == false)
{
resultset = new DpResultSet(false, false);
resultset.Create(strResultsetFilename,
strResultsetFilename + ".index");
bCreate = true;
}
else
{
bCreate = false;
}
// *** 第一阶段， 创建新的结果集文件；或者获取全部读者记录中的指纹时间戳
bool bDone = false; // 创建情形下 是否完成了写入操作
try
{
/*
* long lRet = Channel.SearchReader(stop,
* strReaderDbName,
* "1-9999999999",
* -1,
* "__id",
* "left",
* this.Lang,
* null, // strResultSetName
* "", // strOutputStyle
* out strError);
*/
long lRet = channel.SearchReader(null, // stop,
strReaderDbName,
"",
-1,
"指纹时间戳",
"left",
ClientInfo.Lang,
null, // strResultSetName
"", // strOutputStyle
out strError);
if (lRet == -1)
{
if (channel.ErrorCode == ErrorCode.AccessDenied)
{
strError = "用户 " + channel.UserName + " 权限不足: " + strError;
}
return(-1);
}
if (lRet == 0)
{
// TODO: 这时候如果以前有结果集文件还会残留，但不会影响功能正确性，可以改进为把残留的结果集文件删除
return(0);
}
long lHitCount = lRet;
ResultSetLoader loader = new ResultSetLoader(channel,
null,
null,
bCreate == true ? "id,cols,format:cfgs/browse_fingerprint" : "id,cols,format:cfgs/browse_fingerprinttimestamp",
ClientInfo.Lang);
loader.Prompt += Loader_Prompt;
foreach (DigitalPlatform.LibraryClient.localhost.Record record in loader)
{
token.ThrowIfCancellationRequested();
ShowMessage("正在处理读者记录 " + record.Path);
if (bCreate == true)
{
if (record.Cols == null || record.Cols.Length < 3)
{
strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprint";
return(-1);
}
if (string.IsNullOrEmpty(record.Cols[0]) == true)
{
continue; // 读者记录中没有指纹信息
}
DpRecord item = new DpRecord(record.Path);
// timestamp | barcode | fingerprint
item.BrowseText = record.Cols[0] + "|" + record.Cols[1] + "|" + record.Cols[2];
resultset.Add(item);
}
else
{
if (record.Cols == null || record.Cols.Length < 1)
{
strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprinttimestamp";
return(-1);
}
if (record.Cols.Length < 2)
{
strError = "record.Cols error ... 需要刷新配置文件 cfgs/browse_fingerprinttimestamp 到最新版本";
return(-1);
}
if (string.IsNullOrEmpty(record.Cols[0]) == true)
{
continue; // 读者记录中没有指纹信息
}
// 记载时间戳
// timestamp | barcode
timestamp_table[record.Path] = record.Cols[0] + "|" + record.Cols[1];
}
}
#if NO
// stop.SetProgressRange(0, lHitCount);
long lStart = 0;
long lCount = lHitCount;
DigitalPlatform.LibraryClient.localhost.Record[] searchresults = null;
// 装入浏览格式
for (; ;)
{
token.ThrowIfCancellationRequested();
lRet = channel.GetSearchResult(
null,
null, // strResultSetName
lStart,
lCount,
bCreate == true ? "id,cols,format:cfgs/browse_fingerprint" : "id,cols,format:cfgs/browse_fingerprinttimestamp",
ClientInfo.Lang,
out searchresults,
out strError);
if (lRet == -1)
{
return(-1);
}
if (lRet == 0)
{
strError = "GetSearchResult() return 0";
return(-1);
}
Debug.Assert(searchresults != null, "");
Debug.Assert(searchresults.Length > 0, "");
for (int i = 0; i < searchresults.Length; i++)
{
DigitalPlatform.LibraryClient.localhost.Record record = searchresults[i];
if (bCreate == true)
{
if (record.Cols == null || record.Cols.Length < 3)
{
strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprint";
return(-1);
}
if (string.IsNullOrEmpty(record.Cols[0]) == true)
{
continue; // 读者记录中没有指纹信息
}
DpRecord item = new DpRecord(record.Path);
// timestamp | barcode | fingerprint
item.BrowseText = record.Cols[0] + "|" + record.Cols[1] + "|" + record.Cols[2];
resultset.Add(item);
}
else
{
if (record.Cols == null || record.Cols.Length < 1)
{
strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprinttimestamp";
return(-1);
}
if (record.Cols.Length < 2)
{
strError = "record.Cols error ... 需要刷新配置文件 cfgs/browse_fingerprinttimestamp 到最新版本";
return(-1);
}
if (string.IsNullOrEmpty(record.Cols[0]) == true)
{
continue; // 读者记录中没有指纹信息
}
// 记载时间戳
// timestamp | barcode
timestamp_table[record.Path] = record.Cols[0] + "|" + record.Cols[1];
}
}
lStart += searchresults.Length;
lCount -= searchresults.Length;
//stop.SetMessage(strReaderDbName + " 包含记录 " + lHitCount.ToString() + " 条，已装入 " + lStart.ToString() + " 条");
if (lStart >= lHitCount || lCount <= 0)
{
break;
}
//stop.SetProgressValue(lStart);
}
#endif
if (bCreate == true)
{
bDone = true;
}
if (bCreate == true)
{
// return:
// -2 remoting服务器连接失败。驱动程序尚未启动
// -1 出错
// >=0 实际发送给接口程序的事项数目
nRet = CreateFingerprintCache(resultset,
out strError);
if (nRet == -1 || nRet == -2)
{
return(-1);
}
return(nRet);
}
}
finally
{
if (bCreate == true)
{
Debug.Assert(resultset != null, "");
if (bDone == true)
{
resultset.Detach(out string strTemp1,
out string strTemp2);
}
else
{
// 否则文件会被删除
resultset.Close();
}
}
}
// 比对时间戳，更新结果集文件
Hashtable update_table = new Hashtable(); // 需要更新的事项。recpath --> 1
resultset = new DpResultSet(false, false);
resultset.Attach(strResultsetFilename,
strResultsetFilename + ".index");
try
{
long nCount = resultset.Count;
for (long i = 0; i < nCount; i++)
{
token.ThrowIfCancellationRequested();
DpRecord record = resultset[i];
string strRecPath = record.ID;
ShowMessage("比对 " + strRecPath);
// timestamp | barcode
string strNewTimestamp = (string)timestamp_table[strRecPath];
if (strNewTimestamp == null)
{
// 最新状态下，读者记录已经不存在，需要从结果集中删除
resultset.RemoveAt((int)i);
i--;
nCount--;
continue;
}
// 拆分出证条码号 2013/1/28
string strNewBarcode = "";
nRet = strNewTimestamp.IndexOf("|");
if (nRet != -1)
{
strNewBarcode = strNewTimestamp.Substring(nRet + 1);
strNewTimestamp = strNewTimestamp.Substring(0, nRet);
}
// 最新读者记录中已经没有指纹信息。例如读者记录中的指纹元素被删除了
if (string.IsNullOrEmpty(strNewTimestamp) == true)
{
// 删除现有事项
resultset.RemoveAt((int)i);
i--;
nCount--;
timestamp_table.Remove(strRecPath);
continue;
}
// 取得结果集文件中的原有时间戳字符串
string strText = record.BrowseText; // timestamp | barcode | fingerprint
nRet = strText.IndexOf("|");
if (nRet == -1)
{
strError = "browsetext 错误，没有 '|' 字符";
return(-1);
}
string strOldTimestamp = strText.Substring(0, nRet);
// timestamp | barcode | fingerprint
string strOldBarcode = strText.Substring(nRet + 1);
nRet = strOldBarcode.IndexOf("|");
if (nRet != -1)
{
strOldBarcode = strOldBarcode.Substring(0, nRet);
}
// 时间戳发生变化，需要更新事项
if (strNewTimestamp != strOldTimestamp ||
strNewBarcode != strOldBarcode)
{
// 如果证条码号为空，无法建立对照关系，要跳过
if (string.IsNullOrEmpty(strNewBarcode) == false)
{
update_table[strRecPath] = 1;
}
// 删除现有事项
resultset.RemoveAt((int)i);
i--;
nCount--;
}
timestamp_table.Remove(strRecPath);
}
// 循环结束后，timestamp_table中剩余的是当前结果集文件中没有包含的那些读者记录路径
if (update_table.Count > 0)
{
// 获取指纹信息，追加到结果集文件的尾部
// parameters:
// update_table key为读者记录路径
AppendFingerprintInfo(
channel,
resultset,
update_table,
token);
}
// 如果服务器端新增了指纹信息,需要获取后追加到结果集文件尾部
if (timestamp_table.Count > 0)
{
// 获取指纹信息，追加到结果集文件的尾部
// parameters:
// update_table key为读者记录路径
AppendFingerprintInfo(
channel,
resultset,
timestamp_table,
token);
}
// return:
// -2 remoting服务器连接失败。驱动程序尚未启动
// -1 出错
// >=0 实际发送给接口程序的事项数目
nRet = CreateFingerprintCache(resultset,
out strError);
if (nRet == -1 || nRet == -2)
{
return(-1);
}
return(nRet);
}
finally
{
resultset.Detach(out string strTemp1, out string strTemp2);
}
}