// 变换list参数值，将其中的虚拟库（连带途径）变换为物理库和途径
// parameters:
// return:
// -1 error
// 0 没有发生变化
// 1 发生了变化
int ConvertList(string strSourceList,
out string strTargetList,
out string strError)
{
strTargetList = "";
strError = "";
DbCollection dbs = new DbCollection();
dbs.Build(strSourceList);
bool bChanged = false;
DbCollection target_dbs = new DbCollection();
for (int i = 0; i < dbs.Count; i++)
{
Db db = dbs[i];
Debug.Assert(this.vdbs != null, "");
VirtualDatabase vdb = this.vdbs[db.DbName];
if (vdb == null) // 不是虚拟库
{
target_dbs.Add(db);
continue;
}
if (vdb.IsVirtual == false) // 不是虚拟库
{
target_dbs.Add(db);
continue;
}
bChanged = true;
// 一个Db对象可能演化为多个Db对象
List <Db> multi_dbs = new List <Db>();
// 获得下属的所有真实数据库名
List <string> real_dbnames = vdb.GetRealDbNames();
for (int j = 0; j < real_dbnames.Count; j++)
{
Db target_db = new Db();
target_db.DbName = real_dbnames[j];
List <string> real_froms = new List <string>();
for (int k = 0; k < db.Froms.Count; k++)
{
// 虚拟的路径名
string strVirtualFromName = db.Froms[k];
// 实在的路径名
string strRealFroms = vdb.GetRealFromName(
this.vdbs.db_dir_results,
target_db.DbName,
strVirtualFromName);
if (String.IsNullOrEmpty(strRealFroms) == true)
{
continue;
}
string [] froms = strRealFroms.Split(new char [] { ',' });
for (int l = 0; l < froms.Length; l++)
{
real_froms.Add(froms[l]);
}
}
if (real_froms.Count == 0)
{
continue;
}
target_db.Froms = real_froms;
multi_dbs.Add(target_db);
}
if (multi_dbs.Count == 0)
{
continue;
}
target_dbs.AddRange(multi_dbs);
}
if (bChanged == false)
{
strTargetList = strSourceList;
return(0);
}
strTargetList = target_dbs.GetString();
return(1);
}
// 检查检索式内有没有超越规定读者检索的数据库
// return:
// -1 error
// 0 没有超越要求
// 1 超越了要求
public int CheckReaderOnlyXmlQuery(string strSourceQueryXml,
out string strError)
{
strError = "";
// int nRet = 0;
#if NO
if (this.vdbs == null)
{
this.ActivateManagerThreadForLoad();
strError = "app.vdbs == null。故障原因请检查dp2Library日志";
return(-1);
}
Debug.Assert(this.vdbs != null, "");
#endif
XmlDocument dom = new XmlDocument();
try
{
dom.LoadXml(strSourceQueryXml);
}
catch (Exception ex)
{
strError = "XML检索式装入XMLDOM时出错: " + ex.Message;
return(-1);
}
// 遍历所有<target>元素
XmlNodeList nodes = dom.DocumentElement.SelectNodes("//target");
for (int i = 0; i < nodes.Count; i++)
{
XmlNode node = nodes[i];
string strList = DomUtil.GetAttr(node, "list");
if (String.IsNullOrEmpty(strList) == true)
{
continue;
}
DbCollection dbs = new DbCollection();
dbs.Build(strList);
for (int j = 0; j < dbs.Count; j++)
{
Db db = dbs[j];
// 允许预约到书库 2015/6/14
if (db.DbName == this.ArrivedDbName)
{
continue;
}
string strBiblioDbName = "";
string strDbType = this.GetDbType(db.DbName,
out strBiblioDbName);
if (String.IsNullOrEmpty(strDbType) == true)
{
strError = "数据库 '" + db.DbName + "' 超出了读者可检索的数据库范围";
return(1);
}
}
}
return(0);
}
// 检查检索式内有没有超越当前用户管辖的读者库范围的读者库
// return:
// -1 error
// 0 没有超越要求
// 1 超越了要求
public int CheckReaderDbXmlQuery(string strSourceQueryXml,
string strLibraryCodeList,
out string strError)
{
strError = "";
// int nRet = 0;
#if NO
if (this.vdbs == null)
{
this.ActivateManagerThreadForLoad();
strError = "app.vdbs == null。故障原因请检查dp2Library日志";
return(-1);
}
Debug.Assert(this.vdbs != null, "");
#endif
XmlDocument dom = new XmlDocument();
try
{
dom.LoadXml(strSourceQueryXml);
}
catch (Exception ex)
{
strError = "XML检索式装入XMLDOM时出错: " + ex.Message;
return(-1);
}
// 遍历所有<target>元素
XmlNodeList nodes = dom.DocumentElement.SelectNodes("//target");
for (int i = 0; i < nodes.Count; i++)
{
XmlNode node = nodes[i];
string strList = DomUtil.GetAttr(node, "list");
if (String.IsNullOrEmpty(strList) == true)
{
continue;
}
DbCollection dbs = new DbCollection();
dbs.Build(strList);
for (int j = 0; j < dbs.Count; j++)
{
Db db = dbs[j];
// 需要限制检索读者库为当前管辖的范围
{
string strLibraryCode = "";
bool bReaderDbInCirculation = true;
if (this.IsReaderDbName(db.DbName,
out bReaderDbInCirculation,
out strLibraryCode) == true)
{
// 检查当前操作者是否管辖这个读者库
// 观察一个读者记录路径，看看是不是在当前用户管辖的读者库范围内?
if (this.IsCurrentChangeableReaderPath(db.DbName + "/?",
strLibraryCodeList) == false)
{
strError = "读者库 '" + db.DbName + "' 不在当前用户管辖范围内";
return(1);
}
}
}
}
}
return(0);
}
