// 将 XML 检索式变化为简明格式检索式
public static int GetQueryString(
FromCollection Froms,
string strQueryXml,
IsbnConvertInfo isbnconvertinfo,
out string strQueryString,
out string strError)
{
strError = "";
strQueryString = "";
if (String.IsNullOrEmpty(strQueryXml) == true)
{
return(0);
}
XmlDocument dom = new XmlDocument();
try
{
dom.LoadXml(strQueryXml);
}
catch (Exception ex)
{
strError = "strQueryXml装入XMLDOM时出错: " + ex.Message;
return(-1);
}
XmlNodeList nodes = dom.DocumentElement.SelectNodes("line");
for (int i = 0; i < nodes.Count; i++)
{
XmlNode node = nodes[i];
string strLogic = DomUtil.GetAttr(node, "logic");
string strWord = DomUtil.GetAttr(node, "word");
string strFrom = DomUtil.GetAttr(node, "from");
if (strWord == "")
{
continue;
}
strLogic = GetLogicString(strLogic); // 2011/8/30
if (strQueryString != "")
{
strQueryString += " " + strLogic + " ";
}
int nRet = strFrom.IndexOf("-");
if (nRet != -1)
{
strFrom = strFrom.Substring(0, nRet).Trim();
}
string strValue = Froms.GetValue(strFrom);
if (strValue == null)
{
strError = "名称 '" + strFrom + "' 在use表中没有找到对应的编号";
return(-1);
}
// 对ISBN检索词进行预处理
if (strFrom == "ISBN" &&
isbnconvertinfo != null)
{
/*
* // return:
* // -1 出错
* // 0 没有必要转换
* // 1 已经转换
* nRet = isbnconvertinfo.ConvertISBN(ref strWord,
* out strError);
* if (nRet == -1)
* {
* strError = "在处理ISBN字符串 '" + strWord + "' 过程中出错: " + strError;
* return -1;
* }
* */
List <string> isbns = null;
// return:
// -1 出错
// 0 没有必要转换
// 1 已经转换
nRet = isbnconvertinfo.ConvertISBN(strWord,
out isbns,
out strError);
if (nRet == -1)
{
strError = "在处理ISBN字符串 '" + strWord + "' 过程中出错: " + strError;
return(-1);
}
int j = 0;
foreach (string isbn in isbns)
{
if (j > 0)
{
strQueryString += " OR ";
}
// string strIsbn = isbn.Replace("\"", "\\\""); // 字符 " 替换为 \"
string strIsbn = StringUtil.EscapeString(isbn, "\"/="); // eacape 特殊字符
strQueryString += "\""
+ strIsbn + "\"" + "/1="
+ strValue;
j++;
}
continue;
}
// strWord = strWord.Replace("\"", "\\\""); // 字符 " 替换为 \"
strWord = StringUtil.EscapeString(strWord, "\"/="); // eacape 特殊字符
strQueryString += "\""
+ strWord + "\"" + "/1="
+ strValue;
}
return(1);
}
// 检索一个服务器
// 启动检索以后控制就立即返回
// thread:
// 界面线程
// parameters:
// nodeServerOrDatabase 服务器或者数据库类型的节点
// return:
// -2 尚未输入检索词
// -1 一般错误
// 0 成功启动检索
public int DoSearchOneServer(
// bool bInDirSearch,
TreeNode nodeServerOrDatabase,
out string strError)
{
strError = "";
int nRet = 0;
ZConnection connection = null;
try
{
connection = this.GetZConnection(nodeServerOrDatabase);
}
catch (Exception ex)
{
strError = ExceptionUtil.GetAutoText(ex);
return -1;
}
Debug.Assert(connection.TargetInfo != null, "");
if (connection.TargetInfo.DbNames == null
|| connection.TargetInfo.DbNames.Length == 0)
{
strError = "服务器节点 '" + nodeServerOrDatabase.Text + "' 下的 " + nodeServerOrDatabase.Nodes.Count.ToString() + " 个数据库节点全部为 '在全选时不参与检索' 属性，所以通过选定该服务器节点无法直接进行检索，只能通过选定其下的某个数据库节点进行检索";
return -1;
}
connection.Searching = 0;
Debug.Assert(connection.TreeNode == nodeServerOrDatabase, "");
string strQueryString = "";
if (nodeServerOrDatabase == this.zTargetControl1.SelectedNode)
{
connection.QueryXml = this.queryControl1.GetContent(true);
connection.TargetInfo.PreferredRecordSyntax = this.comboBox_recordSyntax.Text;
connection.TargetInfo.DefaultElementSetName = this.comboBox_elementSetName.Text;
// this.ClearResultInfo(connection);
}
else
{
// strQueryString = connection.QueryString;
}
IsbnConvertInfo isbnconvertinfo = new IsbnConvertInfo();
isbnconvertinfo.IsbnSplitter = this.MainForm.IsbnSplitter;
isbnconvertinfo.ConvertStyle =
(connection.TargetInfo.IsbnAddHyphen == true ? "addhyphen," : "")
+ (connection.TargetInfo.IsbnRemoveHyphen == true ? "removehyphen," : "")
+ (connection.TargetInfo.IsbnForce10 == true ? "force10," : "")
+ (connection.TargetInfo.IsbnForce13 == true ? "force13," : "")
+ (connection.TargetInfo.IsbnWild == true ? "wild," : "");
nRet = ZQueryControl.GetQueryString(
this.MainForm.Froms,
connection.QueryXml,
isbnconvertinfo,
out strQueryString,
out strError);
if (nRet == -1)
return -1;
connection.QueryString = strQueryString;
if (strQueryString == "")
{
strError = "尚未输入检索词";
return -2;
}
#if THREAD_POOLING
List<string> commands = new List<string>();
commands.Add("search");
commands.Add("present");
connection.SetSearchParameters(
connection.QueryString,
connection.TargetInfo.DefaultQueryTermEncoding,
connection.TargetInfo.DbNames,
connection.TargetInfo.DefaultResultSetName);
connection.SetPresentParameters(
connection.TargetInfo.DefaultResultSetName,
0, // nStart,
connection.TargetInfo.PresentPerBatchCount, // nCount,
connection.TargetInfo.PresentPerBatchCount, // 推荐的每次数量
connection.DefaultElementSetName, // "F" strElementSetName,
connection.PreferredRecordSyntax,
true);
connection.BeginCommands(commands);
#else
connection.Search();
#endif
return 0;
}
// 将XML检索式变化为简明格式检索式
public static int GetQueryString(
FromCollection Froms,
string strQueryXml,
IsbnConvertInfo isbnconvertinfo,
out string strQueryString,
out string strError)
{
strError = "";
strQueryString = "";
if (String.IsNullOrEmpty(strQueryXml) == true)
return 0;
XmlDocument dom = new XmlDocument();
try
{
dom.LoadXml(strQueryXml);
}
catch (Exception ex)
{
strError = "strQueryXml装入XMLDOM时出错: " + ex.Message;
return -1;
}
XmlNodeList nodes = dom.DocumentElement.SelectNodes("line");
for (int i = 0; i < nodes.Count; i++)
{
XmlNode node = nodes[i];
string strLogic = DomUtil.GetAttr(node, "logic");
string strWord = DomUtil.GetAttr(node, "word");
string strFrom = DomUtil.GetAttr(node, "from");
if (strWord == "")
continue;
strLogic = GetLogicString(strLogic); // 2011/8/30
if (strQueryString != "")
strQueryString += " " + strLogic + " ";
int nRet = strFrom.IndexOf("-");
if (nRet != -1)
strFrom = strFrom.Substring(0, nRet).Trim();
string strValue = Froms.GetValue(strFrom);
if (strValue == null)
{
strError = "名称 '" + strFrom + "' 在use表中没有找到对应的编号";
return -1;
}
// 对ISBN检索词进行预处理
if (strFrom == "ISBN"
&& isbnconvertinfo != null)
{
/*
// return:
// -1 出错
// 0 没有必要转换
// 1 已经转换
nRet = isbnconvertinfo.ConvertISBN(ref strWord,
out strError);
if (nRet == -1)
{
strError = "在处理ISBN字符串 '" + strWord + "' 过程中出错: " + strError;
return -1;
}
* */
List<string> isbns = null;
// return:
// -1 出错
// 0 没有必要转换
// 1 已经转换
nRet = isbnconvertinfo.ConvertISBN(strWord,
out isbns,
out strError);
if (nRet == -1)
{
strError = "在处理ISBN字符串 '" + strWord + "' 过程中出错: " + strError;
return -1;
}
int j = 0;
foreach (string isbn in isbns)
{
if (j > 0)
strQueryString += " OR ";
string strIsbn = isbn.Replace("\"", "\\\"");
strQueryString += "\""
+ strIsbn + "\"" + "/1="
+ strValue;
j++;
}
continue;
}
strWord = strWord.Replace("\"", "\\\"");
strQueryString += "\""
+ strWord + "\"" + "/1="
+ strValue;
}
return 1;
}
// 准备检索一个服务器
// 并不启动检索
// thread:
// 界面线程
// return:
// -2 尚未输入检索词
// -1 一般错误
// 0 成功准备检索
public int PrepareSearchOneServer(
TreeNode nodeServerOrDatabase,
string strQueryXml,
ref List<ZConnection> connections,
out string strError)
{
strError = "";
int nRet = 0;
ZConnection connection = this.GetZConnection(nodeServerOrDatabase);
Debug.Assert(connection.TargetInfo != null, "");
Debug.Assert(connection.TreeNode == nodeServerOrDatabase, "");
string strQueryString = "";
IsbnConvertInfo isbnconvertinfo = new IsbnConvertInfo();
isbnconvertinfo.IsbnSplitter = this.MainForm.IsbnSplitter;
isbnconvertinfo.ConvertStyle =
(connection.TargetInfo.IsbnAddHyphen == true ? "addhyphen," : "")
+ (connection.TargetInfo.IsbnRemoveHyphen == true ? "removehyphen," : "")
+ (connection.TargetInfo.IsbnForce10 == true ? "force10," : "")
+ (connection.TargetInfo.IsbnForce13 == true ? "force13," : "")
+ (connection.TargetInfo.IsbnWild == true ? "wild," : "");
nRet = ZQueryControl.GetQueryString(
this.MainForm.Froms,
strQueryXml,
isbnconvertinfo,
out strQueryString,
out strError);
if (nRet == -1)
return -1;
connection.QueryString = strQueryString;
connection.QueryXml = strQueryXml;
if (strQueryString == "")
{
strError = "尚未输入检索词";
return -2;
}
// this.m_nServerCount++; // 累加服务器数
this.m_stops.Add(connection.Stop);
connection.Stop.OnBeginLoop -= new BeginLoopEventHandler(Stop_OnBeginLoop);
connection.Stop.OnEndLoop -= new EndLoopEventHandler(Stop_OnEndLoop);
connection.Stop.OnBeginLoop += new BeginLoopEventHandler(Stop_OnBeginLoop);
connection.Stop.OnEndLoop += new EndLoopEventHandler(Stop_OnEndLoop);
connections.Add(connection);
return 0;
}