/// <summary>
/// 检索并获取浏览结果
/// </summary>
/// <param name="strServerUrl">服务器URL。如果==""或者==null，表示用this.ServerUrl</param>
/// <param name="strQueryXml"></param>
/// <param name="bGetBrowseCols">是否要获得浏览列</param>
/// <param name="strError"></param>
/// <returns>-2 用户中断;-1 一般错误;0 未命中; >=1 正常结束，返回命中条数</returns>
public long SearchAndBrowse(
string strServerUrl,
string strQueryXml,
bool bGetBrowseCols,
out string strError)
{
strError = "";
if (strServerUrl == null || strServerUrl == null)
strServerUrl = this.ServerUrl;
RmsChannel channelSave = channel;
channel = Channels.GetChannel(strServerUrl);
if (channel == null)
{
strError = "get channel error";
return -1;
}
try
{
// 检索
long lRet = channel.DoSearch(strQueryXml,
"default",
"", // strOuputStyle
out strError);
if (lRet == -1)
return -1;
if (lRet == 0)
return 0;
// 循环获取结果
long nHitCount = lRet;
long nStart = 0;
long nCount = 10;
long nIndex = 0;
for(;;)
{
Application.DoEvents(); // 出让界面控制权
if (stop != null)
{
if (stop.State != 0)
{
strError = "用户中断";
return -2;
}
}
List<string> aPath = null;
ArrayList aLine = null;
if (bGetBrowseCols == false)
{
lRet = channel.DoGetSearchResult(
"default",
nStart,
nCount,
"zh",
this.stop,
out aPath,
out strError);
}
else
{
lRet = channel.DoGetSearchFullResult(
"default",
nStart,
nCount,
"zh",
this.stop,
out aLine,
out strError);
}
if (lRet == -1)
{
strError = "获取检索结果时出错: " + strError;
return -1;
}
if (bGetBrowseCols == false)
nStart += aPath.Count;
else
nStart += aLine.Count;
// 触发事件
if (this.BrowseRecord != null)
{
int nThisCount = 0;
if (bGetBrowseCols == false)
nThisCount = aPath.Count;
else
nThisCount = aLine.Count;
for (int j = 0; j < nThisCount; j++)
{
BrowseRecordEventArgs e = new BrowseRecordEventArgs();
e.SearchCount = nHitCount;
e.Index = nIndex ++;
if (bGetBrowseCols == false)
{
e.FullPath = strServerUrl + "?" + (string)aPath[j];
}
else
{
string[] cols = (string[])aLine[j];
e.FullPath = strServerUrl + "?" + cols[0];
// 丢掉第一列
e.Cols = new string[Math.Max(cols.Length - 1, 0)];
Array.Copy(cols, 1, e.Cols, 0, cols.Length - 1);
}
this.BrowseRecord(this, e);
if (e.Cancel == true)
{
if (e.ErrorInfo == "")
strError = "用户中断";
else
strError = e.ErrorInfo;
return -2;
}
}
}
if (nStart >= nHitCount)
break;
// 2006/9/24 add 防止nStart + nCount越界
if (nStart + nCount > nHitCount)
nCount = nHitCount - nStart;
else
nCount = 10;
}
return nHitCount;
}
finally
{
channel = channelSave;
}
}
