// 写入数据库的时候， 可以锁定一个范围，后面可以继续并发追加记录，这样效率就很高了。
// 只有在删除已经写入数据库的部分记录的瞬间，才需要锁定整个集合
public void AddLogItem(SearchLogItem item)
{
if (this.m_lock.TryEnterReadLock(m_nLockTimeout) == false)
throw new ApplicationException("锁定尝试中超时");
try
{
this._searchLogCache.Add(item);
}
finally
{
this.m_lock.ExitReadLock();
}
}
// 写入数据库的时候， 可以锁定一个范围，后面可以继续并发追加记录，这样效率就很高了。
// 只有在删除已经写入数据库的部分记录的瞬间，才需要锁定整个集合
public void AddLogItem(SearchLogItem item)
{
if (this.m_lock.TryEnterReadLock(m_nLockTimeout) == false)
{
throw new ApplicationException("锁定尝试中超时");
}
try
{
this._searchLogCache.Add(item);
}
finally
{
this.m_lock.ExitReadLock();
}
}
int PrepareBiblioRecord(
out string strError)
{
strError = "";
int nRet = 0;
long lRet = 0;
// string strOutputPath = "";
if (string.IsNullOrEmpty(this.RecPath) == true)
return 0; // 此时无法进行初始化
OpacApplication app = (OpacApplication)this.Page.Application["app"];
SessionInfo sessioninfo = (SessionInfo)this.Page.Session["sessioninfo"];
string strBiblioXml = "";
string strBiblioState = "";
byte[] timestamp = null;
string[] formats = new string[1];
formats[0] = "xml";
string[] results = null;
lRet = sessioninfo.Channel.GetBiblioInfos(
null,
this.RecPath,
"",
formats,
out results,
out timestamp,
out strError);
if (lRet == -1)
{
strError = "获得种记录 '" + this.RecPath + "' 时出错: " + strError;
goto ERROR1;
}
if (results == null || results.Length < 1)
{
strError = "results error ";
goto ERROR1;
}
if (app.SearchLog != null)
{
SearchLogItem log = new SearchLogItem();
log.IP = this.Page.Request.UserHostAddress.ToString();
log.Query = "";
log.Time = DateTime.UtcNow;
log.HitCount = 1;
log.Format = "biblio";
log.RecPath = this.RecPath;
app.SearchLog.AddLogItem(log);
}
strBiblioXml = results[0];
this.m_strXml = strBiblioXml;
this.Timestamp = ByteArray.GetHexTimeStampString(timestamp);
this.BiblioRecPath = this.RecPath;
string strMarc = "";
// 转换为MARC
{
string strOutMarcSyntax = "";
// 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(strBiblioXml,
true,
"", // this.CurMarcSyntax,
out strOutMarcSyntax,
out strMarc,
out strError);
if (nRet == -1)
goto ERROR1;
this.m_strMARC = strMarc;
}
bool bAjax = true;
if (this.DisableAjax == true)
bAjax = false;
else
{
if (app != null
&& app.WebUiDom != null
&& app.WebUiDom.DocumentElement != null)
{
XmlNode nodeBiblioControl = app.WebUiDom.DocumentElement.SelectSingleNode(
"biblioControl");
if (nodeBiblioControl != null)
{
DomUtil.GetBooleanParam(nodeBiblioControl,
"ajax",
true,
out bAjax,
out strError);
}
}
}
if (bAjax == false)
{
string strBiblio = "";
string strBiblioDbName = ResPath.GetDbName(this.RecPath);
// 需要从内核映射过来文件
string strLocalPath = "";
nRet = app.MapKernelScriptFile(
null, // sessioninfo,
strBiblioDbName,
"./cfgs/opac_biblio.fltx", // OPAC查询固定认这个角色的配置文件，作为公共查询书目格式创建的脚本。而流通前端，创建书目格式的时候，找的是loan_biblio.fltx配置文件
out strLocalPath,
out strError);
if (nRet == -1)
goto ERROR1;
// 将种记录数据从XML格式转换为HTML格式
KeyValueCollection result_params = null;
// 2006/11/28 changed
string strFilterFileName = strLocalPath; // app.CfgDir + "\\biblio.fltx";
nRet = app.ConvertBiblioXmlToHtml(
strFilterFileName,
strBiblioXml,
this.RecPath,
out strBiblio,
out result_params,
out strError);
if (nRet == -1)
goto ERROR1;
// TODO: Render的时候设置，已经晚了半拍
// 要想办法在全部Render前得到题名和进行设置
if (this.AutoSetPageTitle == true
&& result_params != null && result_params.Count > 0)
{
string strTitle = result_params["title"].Value;
if (string.IsNullOrEmpty(strTitle) == false)
this.Page.Title = strTitle;
bool bHasDC = false;
// 探测一下，是否有至少一个DC.开头的 key ?
foreach (KeyValue item in result_params)
{
if (StringUtil.HasHead(item.Key, "DC.") == true)
{
bHasDC = true;
break;
}
}
if (bHasDC == true)
{
// <header profile="http://dublincore.org/documents/2008/08/04/dc-html/">
this.Page.Header.Attributes.Add("profile", "http://dublincore.org/documents/2008/08/04/dc-html/");
// DC rel
//
HtmlLink link = new HtmlLink();
link.Href = "http://purl.org/dc/elements/1.1/";
link.Attributes.Add("rel", "schema.DC");
this.Page.Header.Controls.Add(link);
// <link rel="schema.DCTERMS" href="http://purl.org/dc/terms/" >
link = new HtmlLink();
link.Href = "http://purl.org/dc/terms/";
link.Attributes.Add("rel", "schema.DCTERMS");
this.Page.Header.Controls.Add(link);
foreach (KeyValue item in result_params)
{
if (StringUtil.HasHead(item.Key, "DC.") == false
&& StringUtil.HasHead(item.Key, "DCTERMS.") == false)
continue;
HtmlMeta meta = new HtmlMeta();
meta.Name = item.Key;
meta.Content = item.Value;
if (StringUtil.HasHead(item.Value, "urn:") == true
|| StringUtil.HasHead(item.Value, "http:") == true
|| StringUtil.HasHead(item.Value, "info:") == true
)
meta.Attributes.Add("scheme", "DCTERMS.URI");
this.Page.Header.Controls.Add(meta);
}
}
}
/*
string strPrefix = "";
if (this.Wrapper == true)
strPrefix = this.GetPrefixString("书目信息", "content_wrapper")
+ "<div class='biblio_wrapper'>";
string strPostfix = "";
if (this.Wrapper == true)
strPostfix = "</div>" + this.GetPostfixString();
* */
/*
LiteralControl literal = (LiteralControl)FindControl("biblio");
literal.Text = strPrefix + strBiblio + strPostfix;
* */
// strBiblio = strPrefix + strBiblio + strPostfix;
this.m_strOpacBiblio = strBiblio;
}
return 0;
ERROR1:
return -1;
}
protected void BiblioSearchControl1_Search(object sender, DigitalPlatform.OPAC.Web.SearchEventArgs e)
{
if (WebUtil.PrepareEnvironment(this,
ref app,
ref sessioninfo) == false)
return;
string strError = "";
string strResultSetNamePrefix = Session.SessionID + "_opac_base"; // "opac_base";
string strResultSetName = GetResultSetName(strResultSetNamePrefix);
LibraryChannel channel = sessioninfo.GetChannel(true);
// sessioninfo.Channel.
channel.Idle += new IdleEventHandler(channel_Idle);
try
{
long lRet = // sessioninfo.Channel.
channel.Search(
null,
e.QueryXml,
strResultSetName,
"", // strOutputStyle
out strError);
if (lRet == -1)
goto ERROR1;
#if FILTER
app.SetFilterTask(strResultSetName, null);
#endif
if (app.SearchLog != null)
{
SearchLogItem log = new SearchLogItem();
log.IP = this.Request.UserHostAddress.ToString();
log.Query = e.QueryXml;
log.Time = DateTime.UtcNow;
log.HitCount = (int)lRet;
log.Format = "searchcount";
app.SearchLog.AddLogItem(log);
}
// not found
if (lRet == 0)
{
this.BrowseSearchResultControl1.Visible = false;
#if FITLER
this.filter.Visible = false;
#endif
strError = "没有找到";
goto ERROR1;
}
e.ErrorInfo = string.Format(
this.BiblioSearchControl1.GetString("hit_records_number"),
lRet.ToString());
// e.ErrorInfo = "命中记录 " +lRet.ToString()+ " 条";
this.BrowseSearchResultControl1.Clear();
this.BrowseSearchResultControl1.Visible = true;
#if FILTER
VisibleFilter(true);
#endif
this.BrowseSearchResultControl1.ResultSetName = strResultSetName;
this.BrowseSearchResultControl1.ResultCount = (int)lRet;
this.BrowseSearchResultControl1.StartIndex = 0; // 2008/12/15
#if FILTER
this.filter.ResultSetName = strResultSetName;
#endif
}
finally
{
//sessioninfo.Channel.
channel.Idle -= new IdleEventHandler(channel_Idle);
sessioninfo.ReturnChannel(channel);
}
return;
ERROR1:
e.ErrorInfo = strError;
this.BrowseSearchResultControl1.ResultSetName = "";
this.BrowseSearchResultControl1.ResultCount = 0;
#if FILTER
this.filter.ResultSetName = "";
#endif
}
protected void Page_Load(object sender, EventArgs e)
{
this.BiblioSearchControl1.Location = this.TitleBarControl1.SelectedLibraryCode;
if (WebUtil.PrepareEnvironment(this,
ref app,
ref sessioninfo) == false)
return;
string strSideBarFile = Server.MapPath("./search_sidebar.xml");
if (File.Exists(strSideBarFile) == true)
this.SideBarControl1.CfgFile = strSideBarFile;
else
this.SideBarControl1.Visible = false;
SetSideBarVisible();
/*
// 是否登录?
if (sessioninfo.UserID == "")
{
sessioninfo.LoginCallStack.Push(Request.RawUrl);
Response.Redirect("login.aspx", true);
return;
}
* */
if (this.BrowseSearchResultControl1.ResultCount > 0)
{
this.BrowseSearchResultControl1.Visible = true;
#if FILTER
VisibleFilter(true);
#endif
}
// 是否登录?
if (sessioninfo.UserID == "")
{
if (this.Page.Request["forcelogin"] == "on")
{
sessioninfo.LoginCallStack.Push(Request.RawUrl);
Response.Redirect("login.aspx", true);
return;
}
if (this.Page.Request["forcelogin"] == "userid")
{
sessioninfo.LoginCallStack.Push(Request.RawUrl);
Response.Redirect("login.aspx?loginstyle=librarian", true);
return;
}
sessioninfo.UserID = "public";
sessioninfo.IsReader = false;
/*
sessioninfo.LoginCallStack.Push(Request.RawUrl);
Response.Redirect("login.aspx", true);
return;
* */
}
string strError = "";
int nRet = 0;
#if NO
string strAction = this.Request["action"];
if (strAction == "getdblist")
{
DoGetDbNameList();
return;
}
#endif
// 如果有参数
string strWord = this.Request["word"];
if (String.IsNullOrEmpty(strWord) == false
&& this.IsPostBack == false)
{
string strXml = "";
// string strWord = "";
string strDbName = "";
string strFrom = "";
string strMatchStyle = "";
GetSearchParams(out strWord,
out strDbName,
out strFrom,
out strMatchStyle);
// 根据检索参数创建XML检索式
nRet = OpacApplication.BuildQueryXml(
this.app,
strDbName, // this.Request["dbname"],
strWord,
strFrom, // this.Request["from"],
strMatchStyle, // this.Request["matchstyle"],
null,
null,
app.SearchMaxResultCount,
this.BiblioSearchControl1.SearchStyle, // strSearchStyle
out strXml,
out strError);
if (nRet == -1)
goto ERROR1;
string strResultSetNamePrefix = "";
strResultSetNamePrefix = this.Request["resultsetname"];
if (String.IsNullOrEmpty(strResultSetNamePrefix) == true)
{
strResultSetNamePrefix = Session.SessionID + "_opac_1";
}
else
{
strResultSetNamePrefix = Session.SessionID + "_" + strResultSetNamePrefix;
}
string strResultSetName = GetResultSetName(strResultSetNamePrefix);
LibraryChannel channel = sessioninfo.GetChannel(true);
//sessioninfo.Channel.
channel.Idle += new IdleEventHandler(channel_Idle);
try
{
long lRet = // sessioninfo.Channel.
channel.Search(
null,
strXml,
strResultSetName,
"", // strOutputStyle
out strError);
if (lRet == -1)
goto ERROR1;
#if FILTER
app.SetFilterTask(strResultSetName, null);
#endif
if (app.SearchLog != null)
{
SearchLogItem log = new SearchLogItem();
log.IP = this.Request.UserHostAddress.ToString();
log.Query = SearchLog.BuildLogQueryString(
this.Request["dbname"],
strWord,
this.Request["from"],
this.Request["matchstyle"]);
log.Time = DateTime.UtcNow;
log.HitCount = nRet;
log.Format = "searchcount";
app.SearchLog.AddLogItem(log);
}
// not found
if (lRet == 0)
{
this.BrowseSearchResultControl1.Visible = false;
#if FILTER
this.filter.Visible = false;
#endif
strError = "没有找到";
goto ERROR1;
}
this.BrowseSearchResultControl1.Clear();
this.BrowseSearchResultControl1.Visible = true;
#if FILTER
VisibleFilter(true);
#endif
this.BrowseSearchResultControl1.ResultSetName = strResultSetName;
this.BrowseSearchResultControl1.ResultCount = (int)lRet;
this.BrowseSearchResultControl1.StartIndex = 0; // 2008/12/15
#if FILTER
this.filter.ResultSetName = strResultSetName;
#endif
string strFormat = this.Request["format"];
if (String.IsNullOrEmpty(strFormat) == false)
{
this.BrowseSearchResultControl1.FormatName = strFormat;
}
return;
}
finally
{
// sessioninfo.Channel.
channel.Idle -= new IdleEventHandler(channel_Idle);
sessioninfo.ReturnChannel(channel);
}
}
// 观察特定的结果集
if (this.IsPostBack == false)
{
string strResultSet = this.Request["resultset"];
string strBaseResultSet = this.Request["base"];
string strTitle = this.Request["title"];
if (string.IsNullOrEmpty(strResultSet) == false)
{
string strResultsetFilename = PathUtil.MergePath(app.TempDir, // sessioninfo.GetTempDir(), // ??
strResultSet);
if (File.Exists(strResultsetFilename) == true)
{
long lHitCount = CacheBuilder.GetCount(app, strResultsetFilename, true);
this.BrowseSearchResultControl1.ResultsetFilename = strResultsetFilename;
this.BrowseSearchResultControl1.Visible = true;
#if FILTER
VisibleFilter(true);
this.filter.ResultSetName = strBaseResultSet;
#endif
string strOffset = this.Request["offset"];
this.BrowseSearchResultControl1.ResultsetOffset = strOffset;
#if FILTER
this.filter.SelectedNodePath = MakeSelectedPath(strResultSet, strOffset);
#endif
if (string.IsNullOrEmpty(strOffset) == false)
{
int nStart = 0;
int nLength = -1;
BrowseSearchResultControl.ParseOffsetString(strOffset,
out nStart,
out nLength);
if (nLength == -1)
nLength = (int)lHitCount - nStart;
this.BrowseSearchResultControl1.ResultCount = nLength;
}
else
{
this.BrowseSearchResultControl1.ResultCount = (int)lHitCount;
}
if (string.IsNullOrEmpty(strTitle) == false)
{
this.BrowseSearchResultControl1.Title = strTitle;
}
}
else
{
strError = "结果集文件 '" + strResultSet + "' 不存在";
goto ERROR1;
}
}
else if (string.IsNullOrEmpty(strBaseResultSet) == false)
{
// 只用了base参数
this.BrowseSearchResultControl1.Clear();
this.BrowseSearchResultControl1.Visible = true;
#if FILTER
VisibleFilter(true);
#endif
this.BrowseSearchResultControl1.ResultSetName = strBaseResultSet;
this.BrowseSearchResultControl1.ResultCount = (int)MyWebPage.GetServerResultCount(sessioninfo, strBaseResultSet);
this.BrowseSearchResultControl1.StartIndex = 0;
#if FILTER
this.filter.ResultSetName = strBaseResultSet;
#endif
}
}
//this.AdvanceSearchControl1.Channels = sessioninfo.Channels;
//this.AdvanceSearchControl1.ServerUrl = app.WsUrl;
// this.HeadBarControl1.CurrentColumn = HeaderColumn.Search;
return;
ERROR1:
Response.Write(HttpUtility.HtmlEncode(strError));
Response.End();
}