// 获得查重检索命中结果
// parameters:
// lStart 返回命中结果集起始位置
// lCount 返回命中结果集的记录个数
// strBrowseInfoStyle 所返回的DupSearchResult中包含哪些信息
// "cols" 包含浏览列
// "excludecolsoflowthreshold" 不包含权值低于阈值的行的浏览列。要在同时包含cols时才起作用
// searchresults 包含记录信息的DupSearchResult数组
public LibraryServerResult GetDupSearchResult(
SessionInfo sessioninfo,
long lStart,
long lCount,
string strBrowseInfoStyle,
out DupSearchResult[] searchresults)
{
string strError = "";
searchresults = null;
int nRet = 0;
LibraryServerResult result = new LibraryServerResult();
RmsChannel channel = sessioninfo.Channels.GetChannel(this.WsUrl);
if (channel == null)
{
strError = "get channel error";
goto ERROR1;
}
DupResultSet dupset = sessioninfo.DupResultSet;
if (dupset == null)
{
strError = "查重结果集不存在";
goto ERROR1;
}
dupset.EnsureCreateIndex(getTempFileName);
int nCount = (int)lCount;
int nStart = (int)lStart;
if (nCount == -1)
{
nCount = (int)dupset.Count - nStart;
if (nCount < 0)
{
nCount = 0;
}
}
else
{
if (nCount > (int)dupset.Count - nStart)
{
nCount = (int)dupset.Count - nStart;
if (nCount < 0)
{
nCount = 0;
}
}
}
bool bDetail = (StringUtil.IsInList("detail", strBrowseInfoStyle));
bool bExcludeCols = (StringUtil.IsInList("excludecolsoflowthreshold", strBrowseInfoStyle) == true);
bool bCols = (StringUtil.IsInList("cols", strBrowseInfoStyle) == true);
List <string> pathlist = new List <string>();
List <DupSearchResult> results = new List <DupSearchResult>();
for (int i = 0; i < nCount; i++) // BUG nStart +
{
DupLineItem item = (DupLineItem)dupset[nStart + i]; // changed
DupSearchResult result_item = new DupSearchResult();
results.Add(result_item);
result_item.Path = item.Path;
result_item.Weight = item.Weight;
result_item.Threshold = item.Threshold;
if (bDetail)
{
result_item.Detail = item.Detail;
}
// paths[i] = item.Path;
if (bCols == true)
{
if (bExcludeCols == true && item.Weight < item.Threshold)
{
}
else
{
pathlist.Add(item.Path);
}
}
}
if (pathlist.Count > 0)
{
// string[] paths = new string[pathlist.Count];
string[] paths = StringUtil.FromListString(pathlist);
nRet = channel.GetBrowseRecords(paths,
"cols",
out ArrayList aRecord,
out strError);
if (nRet == -1)
{
strError = "GetBrowseRecords() error: " + strError;
goto ERROR1;
}
int j = 0;
for (int i = 0; i < results.Count; i++)
{
DupSearchResult result_item = results[i];
if (result_item.Path != pathlist[j])
{
continue;
}
string[] cols = (string[])aRecord[j];
results[i].Cols = cols; // style中不包含id
j++;
if (j >= pathlist.Count)
{
break;
}
}
}
searchresults = new DupSearchResult[results.Count];
results.CopyTo(searchresults);
result.Value = searchresults.Length;
return(result);
ERROR1:
result.Value = -1;
result.ErrorCode = ErrorCode.SystemError;
result.ErrorInfo = strError;
return(result);
}
// 针对一个from进行检索
// parameters:
// strExcludeBiblioRecPath 要排除掉的记录路径
// return:
// -1 error
// 0 not found
// 1 found
int SearchOneFrom(
// RmsChannelCollection Channels,
RmsChannel channel,
string strDbName,
string strFrom,
string strKey,
string strSearchStyle,
int nWeight,
int nThreshold,
long nMax,
string strExcludeBiblioRecPath,
out DupResultSet dupset,
out string strError)
{
strError = "";
dupset = null;
long lRet = 0;
if (strSearchStyle == "")
{
strSearchStyle = "exact";
}
string strQueryXml = "<target list='"
+ StringUtil.GetXmlStringSimple(strDbName + ":" + strFrom) // 2007/9/14
+ "'><item><word>"
+ StringUtil.GetXmlStringSimple(strKey)
+ "</word><match>" + strSearchStyle + "</match><relation>=</relation><dataType>string</dataType><maxCount>" + nMax.ToString() + "</maxCount></item><lang>zh</lang></target>";
string strSearchReason = "key='" + strKey + "', from='" + strFrom + "', weight=" + Convert.ToString(nWeight);
/*
* RmsChannel channel = Channels.GetChannel(this.WsUrl);
* if (channel == null)
* {
* strError = "get channel error";
* goto ERROR1;
* }
* */
Debug.Assert(channel != null, "");
lRet = channel.DoSearch(strQueryXml,
"dup",
"", // strOuputStyle
out strError);
if (lRet == -1)
{
goto ERROR1;
}
if (lRet == 0)
{
return(0); // not found
}
long lHitCount = lRet;
long lStart = 0;
long lPerCount = Math.Min(50, lHitCount);
List <string> aPath = null;
dupset = new DupResultSet();
dupset.Open(false, getTempFileName);
// 获得结果集，对逐个记录进行处理
for (; ;)
{
// TODO: 中间要可以中断
lRet = channel.DoGetSearchResult(
"dup", // strResultSetName
lStart,
lPerCount,
"zh",
null, // stop
out aPath,
out strError);
if (lRet == -1)
{
goto ERROR1;
}
if (lRet == 0)
{
strError = "未命中";
break; // ??
}
// TODO: 要判断 aPath.Count == 0 跳出循环。否则容易进入死循环
// 处理浏览结果
for (int i = 0; i < aPath.Count; i++)
{
string strPath = aPath[i];
// 忽略发起记录的路径
if (strPath == strExcludeBiblioRecPath)
{
continue;
}
DupLineItem item = new DupLineItem
{
Path = strPath,
Weight = nWeight,
Threshold = nThreshold,
Detail = BuildDetail(strDbName,
strFrom,
strKey,
strSearchStyle,
nWeight)
};
dupset.Add(item);
}
lStart += aPath.Count;
if (lStart >= lHitCount || lPerCount <= 0)
{
break;
}
}
return(1);
ERROR1:
return(-1);
}
// 进行查重
// parameters:
// sessioninfo 仅仅用来存放DupResultSet，不应该用来sessioninfo.GetChannel()，而要用channel来进行检索操作
// channel
// strOriginBiblioRecPath 发起的书目记录路径
// strOriginBiblioRecXml 发起的书目记录XML
// strProjectName 查重方案名
// strStyle includeoriginrecord输出结果中包含发起记录(缺省为不包含)
// return:
// -1 error
// 0 not found
// 其他 命中记录条数
public LibraryServerResult SearchDup(
SessionInfo sessioninfo1,
RmsChannel channel,
string strOriginBiblioRecPath,
string strOriginBiblioRecXml,
string strProjectName,
string strStyle,
out string strUsedProjectName)
{
string strError = "";
int nRet = 0;
strUsedProjectName = "";
string strDebugInfo = "";
strStyle = strStyle.ToLower();
bool bIncludeOriginRecord = StringUtil.IsInList("includeoriginrecord", strStyle);
LibraryServerResult result = new LibraryServerResult();
// 如果没有给出方案名，则需要在<default>元素中找到一个书目库的缺省查重方案
if (String.IsNullOrEmpty(strProjectName) == true)
{
if (String.IsNullOrEmpty(strOriginBiblioRecPath) == true)
{
strError = "既没有给出查重方案名，也没有给出记录路径，无法进行查重";
goto ERROR1;
}
string strOriginBiblioDbName = ResPath.GetDbName(strOriginBiblioRecPath);
XmlNode nodeDefault = this.LibraryCfgDom.DocumentElement.SelectSingleNode("//dup/default[@origin='" + strOriginBiblioDbName + "']");
if (nodeDefault == null)
{
strError = "在没有明确指定查重方案名的情况下，本希望通过相关书目库的缺省查重方案名进行查重。但目前系统没有为书目库 '" + strOriginBiblioDbName + "' 定义缺省查重方案名，无法进行查重";
goto ERROR1;
}
string strDefaultProjectName = DomUtil.GetAttr(nodeDefault, "project");
if (String.IsNullOrEmpty(strDefaultProjectName) == true)
{
strError = "书目库 '" + strOriginBiblioDbName + "' 的<default>元素中未定义project属性值";
goto ERROR1;
}
strProjectName = strDefaultProjectName;
}
strUsedProjectName = strProjectName;
// 获得查重方案定义节点
// return:
// -1 出错
// 0 not found
// 1 found
nRet = GetDupProjectNode(strProjectName,
out XmlNode nodeProject,
out strError);
if (nRet == 0 || nRet == -1)
{
goto ERROR1;
}
Debug.Assert(nodeProject != null, "");
DupResultSet alldatabase_set = null; // 所有库的结果集
XmlNodeList nodeDatabases = nodeProject.SelectNodes("database");
// 循环，针对每个数据库进行检索
for (int i = 0; i < nodeDatabases.Count; i++)
{
XmlNode nodeDatabase = nodeDatabases[i];
string strDatabaseName = DomUtil.GetAttr(nodeDatabase, "name");
string strThreshold = DomUtil.GetAttr(nodeDatabase, "threshold");
int nThreshold = 0;
try
{
nThreshold = Convert.ToInt32(strThreshold);
}
catch
{
}
List <AccessKeyInfo> aKeyLine = null;
// 模拟创建检索点，以获得检索点列表
// return:
// -1 error
// 0 succeed
nRet = GetKeys(
// sessioninfo.Channels,
channel,
strOriginBiblioRecPath,
strOriginBiblioRecXml,
out aKeyLine,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
DupResultSet onedatabase_set = null; // 一个库的结果集
try
{
XmlNodeList accesspoints = nodeDatabase.SelectNodes("accessPoint");
// <accessPoint>循环
for (int j = 0; j < accesspoints.Count; j++)
{
XmlNode accesspoint = accesspoints[j];
string strFrom = DomUtil.GetAttr(accesspoint, "name");
// 获得from所对应的key
List <string> keys = GetKeyByFrom(aKeyLine,
strFrom);
if (keys.Count == 0)
{
continue;
}
string strWeight = DomUtil.GetAttr(accesspoint, "weight");
string strSearchStyle = DomUtil.GetAttr(accesspoint, "searchStyle");
int nWeight = 0;
try
{
nWeight = Convert.ToInt32(strWeight);
}
catch
{
// 警告定义问题?
}
for (int k = 0; k < keys.Count; k++)
{
string strKey = (string)keys[k];
if (strKey == "")
{
continue;
}
DupResultSet dupset = null;
try
{
// 针对一个from进行检索
// return:
// -1 error
// 0 not found
// 1 found
nRet = SearchOneFrom(
// sessioninfo.Channels,
channel,
strDatabaseName,
strFrom,
strKey,
strSearchStyle,
nWeight,
nThreshold,
5000, // ???
(bIncludeOriginRecord == false) ? strOriginBiblioRecPath : null,
out dupset,
out strError);
if (nRet == -1)
{
// ??? 警告检索错误?
continue;
}
if (onedatabase_set == null)
{
onedatabase_set = dupset;
dupset = null; // 避免出 try 范围时被释放。因为内容已经转移给 onedatabase_set 了
continue;
}
if (nRet == 0)
{
continue;
}
Debug.Assert(dupset != null, "");
if (onedatabase_set.Sorted == true)
{
onedatabase_set.EnsureCreateIndex(getTempFileName);
}
else
{
onedatabase_set.Sort(getTempFileName);
}
// dupset.EnsureCreateIndex(getTempFileName);
// 2017/4/14
dupset.Sort(getTempFileName); // Sort() 里面自动确保了创建 Index
// 将dupset和前一个set归并
// 归并可以参考ResultSet中的Merge算法
DupResultSet tempset = new DupResultSet();
tempset.Open(false, getTempFileName);
// 功能: 合并两个数组
// parameters:
// strStyle 运算风格 OR , AND , SUB
// sourceLeft 源左边结果集
// sourceRight 源右边结果集
// targetLeft 目标左边结果集
// targetMiddle 目标中间结果集
// targetRight 目标右边结果集
// bOutputDebugInfo 是否输出处理信息
// strDebugInfo 处理信息
// return
// -1 出错
// 0 成功
nRet = DupResultSet.Merge("OR",
onedatabase_set,
dupset,
null, // targetLeft,
tempset,
null, // targetRight,
false,
out strDebugInfo,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
{
if (onedatabase_set != null)
{
onedatabase_set.Dispose();
}
onedatabase_set = tempset;
onedatabase_set.Sorted = true; // 归并后产生的结果集自然是符合顺序的
}
}
finally
{
if (dupset != null)
{
dupset.Dispose();
}
}
} // end of k loop
} // end of j loop
if (alldatabase_set == null)
{
alldatabase_set = onedatabase_set;
onedatabase_set = null; // 避免出 try 范围时被释放。因为内容已经转移给 alldatabase_set 了
continue;
}
// 合并
if (onedatabase_set != null)
{
DupResultSet tempset0 = new DupResultSet();
tempset0.Open(false, getTempFileName);
if (alldatabase_set.Sorted == true)
{
alldatabase_set.EnsureCreateIndex(getTempFileName);
}
else
{
alldatabase_set.Sort(getTempFileName);
}
// onedatabase_set.EnsureCreateIndex(getTempFileName);
// 2017/4/14
onedatabase_set.Sort(getTempFileName); // Sort() 里面自动确保了创建 Index
nRet = DupResultSet.Merge("OR",
alldatabase_set,
onedatabase_set,
null, // targetLeft,
tempset0,
null, // targetRight,
false,
out strDebugInfo,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
{
if (alldatabase_set != null)
{
alldatabase_set.Dispose();
}
alldatabase_set = tempset0;
alldatabase_set.Sorted = true;
}
}
}
finally
{
if (onedatabase_set != null)
{
onedatabase_set.Dispose();
}
}
}
// 最后要按照 Weight和Threshold的差额 对结果集进行排序，便于输出
if (alldatabase_set != null)
{
alldatabase_set.SortStyle = DupResultSetSortStyle.OverThreshold;
alldatabase_set.Sort(getTempFileName);
}
{
if (sessioninfo1.DupResultSet != null)
{
sessioninfo1.DupResultSet.Dispose();
}
sessioninfo1.DupResultSet = alldatabase_set;
}
if (alldatabase_set != null)
{
result.Value = alldatabase_set.Count;
}
else
{
result.Value = 0;
}
return(result);
ERROR1:
result.Value = -1;
result.ErrorCode = ErrorCode.SystemError;
result.ErrorInfo = strError;
return(result);
}
// 功能: 合并两个数组
// parameters:
// strStyle 运算风格 OR , AND , SUB
// sourceLeft 源左边结果集
// sourceRight 源右边结果集
// targetLeft 目标左边结果集
// targetMiddle 目标中间结果集
// targetRight 目标右边结果集
// bOutputDebugInfo 是否输出处理信息
// strDebugInfo 处理信息
// return
// -1 出错
// 0 成功
public static int Merge(string strStyle,
DupResultSet sourceLeft,
DupResultSet sourceRight,
DupResultSet targetLeft,
DupResultSet targetMiddle,
DupResultSet targetRight,
bool bOutputDebugInfo,
out string strDebugInfo,
out string strError)
{
strDebugInfo = "";
strError = "";
if (sourceLeft.m_streamSmall == null)
{
throw new Exception("sourceLeft结果集对象未建索引");
}
if (sourceRight.m_streamSmall == null)
{
throw new Exception("sourceRight结果集对象未建索引");
}
if (bOutputDebugInfo == true)
{
strDebugInfo += "strStyle值:" + strStyle + "<br/>";
strDebugInfo += "sourceLeft结果集:" + sourceLeft.Dump() + "<br/>";
strDebugInfo += "sourceRight结果集:" + sourceRight.Dump() + "<br/>";
}
if (String.Compare(strStyle, "OR", true) == 0)
{
if (targetLeft != null || targetRight != null)
{
Exception ex = new Exception("DpResultSetManager::Merge()中是不是参数用错了?当strStyle参数值为\"OR\"时，targetLeft参数和targetRight无效，值应为null");
throw (ex);
}
}
DupLineItem dpRecordLeft;
DupLineItem dpRecordRight;
int i = 0;
int j = 0;
int ret;
while (true)
{
dpRecordLeft = null;
dpRecordRight = null;
if (i >= sourceLeft.Count)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "i大于等于sourceLeft的个数，将i改为-1<br/>";
}
i = -1;
}
else if (i != -1)
{
try
{
dpRecordLeft = (DupLineItem)sourceLeft[i];
if (bOutputDebugInfo == true)
{
strDebugInfo += "取出sourceLeft集合中第" + Convert.ToString(i) + "个元素，Path为" + dpRecordLeft.Path + "<br/>";
}
}
catch (Exception e)
{
Exception ex = new Exception("取SourceLeft集合出错：i=" + Convert.ToString(i) + "----Count=" + Convert.ToString(sourceLeft.Count) + ", internel error :" + e.Message + "<br/>");
throw (ex);
}
}
if (j >= sourceRight.Count)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "j大于等于sourceRight的个数，将j改为-1<br/>";
}
j = -1;
}
else if (j != -1)
{
try
{
dpRecordRight = (DupLineItem)sourceRight[j];
if (bOutputDebugInfo == true)
{
strDebugInfo += "取出sourceRight集合中第" + Convert.ToString(j) + "个元素，Path为" + dpRecordRight.Path + "<br/>";
}
}
catch
{
Exception ex = new Exception("j=" + Convert.ToString(j) + "----Count=" + Convert.ToString(sourceLeft.Count) + sourceRight.GetHashCode() + "<br/>");
throw (ex);
}
}
if (i == -1 && j == -1)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "i,j都等于-1跳出<br/>";
}
break;
}
if (dpRecordLeft == null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "dpRecordLeft为null，设ret等于1<br/>";
}
ret = 1;
}
else if (dpRecordRight == null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "dpRecordRight为null，设ret等于-1<br/>";
}
ret = -1;
}
else
{
ret = dpRecordLeft.CompareTo(dpRecordRight); //MyCompareTo(oldOneKey); //改CompareTO
if (bOutputDebugInfo == true)
{
strDebugInfo += "dpRecordLeft与dpRecordRight均不为null，比较两条记录得到ret等于" + Convert.ToString(ret) + "<br/>";
}
}
if (String.Compare(strStyle, "OR", true) == 0 &&
targetMiddle != null)
{
if (ret == 0)
{
// 左右任意取一个就可以，但是要加上权值 2007/7/2
dpRecordLeft.Weight += dpRecordRight.Weight;
targetMiddle.Add(dpRecordLeft);
i++;
j++;
}
else if (ret < 0)
{
targetMiddle.Add(dpRecordLeft);
i++;
}
else if (ret > 0)
{
targetMiddle.Add(dpRecordRight);
j++;
}
continue;
}
if (ret == 0 && targetMiddle != null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret等于0,加到targetMiddle里面<br/>";
}
// 左右任意取一个就可以，但是要加上权值 2007/7/2
dpRecordLeft.Weight += dpRecordRight.Weight;
targetMiddle.Add(dpRecordLeft);
i++;
j++;
}
if (ret < 0)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret小于0,加到targetLeft里面<br/>";
}
if (targetLeft != null && dpRecordLeft != null)
{
targetLeft.Add(dpRecordLeft);
}
i++;
}
if (ret > 0)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret大于0,加到targetRight里面<br/>";
}
if (targetRight != null && dpRecordRight != null)
{
targetRight.Add(dpRecordRight);
}
j++;
}
}
return(0);
}
// 功能: 合并两个数组
// parameters:
// strStyle 运算风格 OR , AND , SUB
// sourceLeft 源左边结果集
// sourceRight 源右边结果集
// targetLeft 目标左边结果集
// targetMiddle 目标中间结果集
// targetRight 目标右边结果集
// bOutputDebugInfo 是否输出处理信息
// strDebugInfo 处理信息
// return
// -1 出错
// 0 成功
public static int Merge(string strStyle,
DupResultSet sourceLeft,
DupResultSet sourceRight,
DupResultSet targetLeft,
DupResultSet targetMiddle,
DupResultSet targetRight,
bool bOutputDebugInfo,
out string strDebugInfo,
out string strError)
{
strDebugInfo = "";
strError = "";
if (sourceLeft.m_streamSmall == null)
{
throw new Exception("sourceLeft结果集对象未建索引");
}
if (sourceRight.m_streamSmall == null)
{
throw new Exception("sourceRight结果集对象未建索引");
}
if (bOutputDebugInfo == true)
{
strDebugInfo += "strStyle值:" + strStyle + "<br/>";
strDebugInfo += "sourceLeft结果集:" + sourceLeft.Dump() + "<br/>";
strDebugInfo += "sourceRight结果集:" + sourceRight.Dump() + "<br/>";
}
if (String.Compare(strStyle, "OR", true) == 0)
{
if (targetLeft != null || targetRight != null)
{
Exception ex = new Exception("DpResultSetManager::Merge()中是不是参数用错了?当strStyle参数值为\"OR\"时，targetLeft参数和targetRight无效，值应为null");
throw (ex);
}
}
DupLineItem dpRecordLeft;
DupLineItem dpRecordRight;
int i = 0;
int j = 0;
int ret;
while (true)
{
dpRecordLeft = null;
dpRecordRight = null;
if (i >= sourceLeft.Count)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "i大于等于sourceLeft的个数，将i改为-1<br/>";
}
i = -1;
}
else if (i != -1)
{
try
{
dpRecordLeft = (DupLineItem)sourceLeft[i];
if (bOutputDebugInfo == true)
{
strDebugInfo += "取出sourceLeft集合中第" + Convert.ToString(i) + "个元素，Path为" + dpRecordLeft.Path + "<br/>";
}
}
catch (Exception e)
{
Exception ex = new Exception("取SourceLeft集合出错：i=" + Convert.ToString(i) + "----Count=" + Convert.ToString(sourceLeft.Count) + ", internel error :" + e.Message + "<br/>");
throw (ex);
}
}
if (j >= sourceRight.Count)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "j大于等于sourceRight的个数，将j改为-1<br/>";
}
j = -1;
}
else if (j != -1)
{
try
{
dpRecordRight = (DupLineItem)sourceRight[j];
if (bOutputDebugInfo == true)
{
strDebugInfo += "取出sourceRight集合中第" + Convert.ToString(j) + "个元素，Path为" + dpRecordRight.Path + "<br/>";
}
}
catch
{
Exception ex = new Exception("j=" + Convert.ToString(j) + "----Count=" + Convert.ToString(sourceLeft.Count) + sourceRight.GetHashCode() + "<br/>");
throw (ex);
}
}
if (i == -1 && j == -1)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "i,j都等于-1跳出<br/>";
}
break;
}
if (dpRecordLeft == null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "dpRecordLeft为null，设ret等于1<br/>";
}
ret = 1;
}
else if (dpRecordRight == null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "dpRecordRight为null，设ret等于-1<br/>";
}
ret = -1;
}
else
{
ret = dpRecordLeft.CompareTo(dpRecordRight); //MyCompareTo(oldOneKey); //改CompareTO
if (bOutputDebugInfo == true)
{
strDebugInfo += "dpRecordLeft与dpRecordRight均不为null，比较两条记录得到ret等于" + Convert.ToString(ret) + "<br/>";
}
}
if (String.Compare(strStyle, "OR", true) == 0
&& targetMiddle != null)
{
if (ret == 0)
{
// 左右任意取一个就可以，但是要加上权值 2007/7/2
dpRecordLeft.Weight += dpRecordRight.Weight;
targetMiddle.Add(dpRecordLeft);
i++;
j++;
}
else if (ret < 0)
{
targetMiddle.Add(dpRecordLeft);
i++;
}
else if (ret > 0)
{
targetMiddle.Add(dpRecordRight);
j++;
}
continue;
}
if (ret == 0 && targetMiddle != null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret等于0,加到targetMiddle里面<br/>";
}
// 左右任意取一个就可以，但是要加上权值 2007/7/2
dpRecordLeft.Weight += dpRecordRight.Weight;
targetMiddle.Add(dpRecordLeft);
i++;
j++;
}
if (ret < 0)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret小于0,加到targetLeft里面<br/>";
}
if (targetLeft != null && dpRecordLeft != null)
targetLeft.Add(dpRecordLeft);
i++;
}
if (ret > 0)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret大于0,加到targetRight里面<br/>";
}
if (targetRight != null && dpRecordRight != null)
targetRight.Add(dpRecordRight);
j++;
}
}
return 0;
}
// 针对一个from进行检索
// parameters:
// strExcludeBiblioRecPath 要排除掉的记录路径
// return:
// -1 error
// 0 not found
// 1 found
int SearchOneFrom(
// RmsChannelCollection Channels,
RmsChannel channel,
string strDbName,
string strFrom,
string strKey,
string strSearchStyle,
int nWeight,
int nThreshold,
long nMax,
string strExcludeBiblioRecPath,
out DupResultSet dupset,
out string strError)
{
strError = "";
dupset = null;
long lRet = 0;
if (strSearchStyle == "")
strSearchStyle = "exact";
string strQueryXml = "<target list='"
+ StringUtil.GetXmlStringSimple(strDbName + ":" + strFrom) // 2007/9/14
+ "'><item><word>"
+ StringUtil.GetXmlStringSimple(strKey)
+ "</word><match>" + strSearchStyle + "</match><relation>=</relation><dataType>string</dataType><maxCount>" + nMax.ToString() + "</maxCount></item><lang>zh</lang></target>";
string strSearchReason = "key='" + strKey + "', from='" + strFrom + "', weight=" + Convert.ToString(nWeight);
/*
RmsChannel channel = Channels.GetChannel(this.WsUrl);
if (channel == null)
{
strError = "get channel error";
goto ERROR1;
}
* */
Debug.Assert(channel != null, "");
lRet = channel.DoSearch(strQueryXml,
"dup",
"", // strOuputStyle
out strError);
if (lRet == -1)
goto ERROR1;
if (lRet == 0)
return 0; // not found
long lHitCount = lRet;
long lStart = 0;
long lPerCount = Math.Min(50, lHitCount);
List<string> aPath = null;
dupset = new DupResultSet();
dupset.Open(false, getTempFileName);
// 获得结果集，对逐个记录进行处理
for (; ; )
{
// TODO: 中间要可以中断
lRet = channel.DoGetSearchResult(
"dup", // strResultSetName
lStart,
lPerCount,
"zh",
null, // stop
out aPath,
out strError);
if (lRet == -1)
goto ERROR1;
if (lRet == 0)
{
strError = "未命中";
break; // ??
}
// TODO: 要判断 aPath.Count == 0 跳出循环。否则容易进入死循环
// 处理浏览结果
for (int i = 0; i < aPath.Count; i++)
{
string strPath = aPath[i];
// 忽略发起记录的路径
if (strPath == strExcludeBiblioRecPath)
continue;
DupLineItem item = new DupLineItem();
item.Path = strPath;
item.Weight = nWeight;
item.Threshold = nThreshold;
dupset.Add(item);
}
lStart += aPath.Count;
if (lStart >= lHitCount || lPerCount <= 0)
break;
}
return 1;
ERROR1:
return -1;
}
// 进行查重
// parameters:
// sessioninfo 仅仅用来存放DupResultSet，不应该用来sessioninfo.GetChannel()，而要用channel来进行检索操作
// channel
// strOriginBiblioRecPath 发起的书目记录路径
// strOriginBiblioRecXml 发起的书目记录XML
// strProjectName 查重方案名
// strStyle includeoriginrecord输出结果中包含发起记录(缺省为不包含)
// return:
// -1 error
// 0 not found
// 其他 命中记录条数
public LibraryServerResult SearchDup(
SessionInfo sessioninfo1,
RmsChannel channel,
string strOriginBiblioRecPath,
string strOriginBiblioRecXml,
string strProjectName,
string strStyle,
out string strUsedProjectName)
{
string strError = "";
int nRet = 0;
strUsedProjectName = "";
string strDebugInfo = "";
strStyle = strStyle.ToLower();
bool bIncludeOriginRecord = StringUtil.IsInList("includeoriginrecord", strStyle);
LibraryServerResult result = new LibraryServerResult();
// 如果没有给出方案名，则需要在<default>元素中找到一个书目库的缺省查重方案
if (String.IsNullOrEmpty(strProjectName) == true)
{
if (String.IsNullOrEmpty(strOriginBiblioRecPath) == true)
{
strError = "既没有给出查重方案名，也没有给出记录路径，无法进行查重";
goto ERROR1;
}
string strOriginBiblioDbName = ResPath.GetDbName(strOriginBiblioRecPath);
XmlNode nodeDefault = this.LibraryCfgDom.DocumentElement.SelectSingleNode("//dup/default[@origin='" + strOriginBiblioDbName + "']");
if (nodeDefault == null)
{
strError = "在没有明确指定查重方案名的情况下，本希望通过相关书目库的缺省查重方案名进行查重。但目前系统没有为书目库 '" + strOriginBiblioDbName + "' 定义缺省查重方案名，无法进行查重";
goto ERROR1;
}
string strDefaultProjectName = DomUtil.GetAttr(nodeDefault, "project");
if (String.IsNullOrEmpty(strDefaultProjectName) == true)
{
strError = "书目库 '" + strOriginBiblioDbName + "' 的<default>元素中未定义project属性值";
goto ERROR1;
}
strProjectName = strDefaultProjectName;
}
strUsedProjectName = strProjectName;
XmlNode nodeProject = null;
// 获得查重方案定义节点
// return:
// -1 出错
// 0 not found
// 1 found
nRet = GetDupProjectNode(strProjectName,
out nodeProject,
out strError);
if (nRet == 0 || nRet == -1)
goto ERROR1;
Debug.Assert(nodeProject != null, "");
DupResultSet alldatabase_set = null; // 所有库的结果集
XmlNodeList nodeDatabases = nodeProject.SelectNodes("database");
// 循环，针对每个数据库进行检索
for (int i = 0; i < nodeDatabases.Count; i++)
{
XmlNode nodeDatabase = nodeDatabases[i];
string strDatabaseName = DomUtil.GetAttr(nodeDatabase, "name");
string strThreshold = DomUtil.GetAttr(nodeDatabase, "threshold");
int nThreshold = 0;
try
{
nThreshold = Convert.ToInt32(strThreshold);
}
catch
{
}
List<AccessKeyInfo> aKeyLine = null;
// 模拟创建检索点，以获得检索点列表
// return:
// -1 error
// 0 succeed
nRet = GetKeys(
// sessioninfo.Channels,
channel,
strOriginBiblioRecPath,
strOriginBiblioRecXml,
out aKeyLine,
out strError);
if (nRet == -1)
goto ERROR1;
DupResultSet onedatabase_set = null; // 一个库的结果集
try
{
XmlNodeList accesspoints = nodeDatabase.SelectNodes("accessPoint");
// <accessPoint>循环
for (int j = 0; j < accesspoints.Count; j++)
{
XmlNode accesspoint = accesspoints[j];
string strFrom = DomUtil.GetAttr(accesspoint, "name");
// 获得from所对应的key
List<string> keys = GetKeyByFrom(aKeyLine,
strFrom);
if (keys.Count == 0)
continue;
string strWeight = DomUtil.GetAttr(accesspoint, "weight");
string strSearchStyle = DomUtil.GetAttr(accesspoint, "searchStyle");
int nWeight = 0;
try
{
nWeight = Convert.ToInt32(strWeight);
}
catch
{
// 警告定义问题?
}
for (int k = 0; k < keys.Count; k++)
{
string strKey = (string)keys[k];
if (strKey == "")
continue;
DupResultSet dupset = null;
try
{
// 针对一个from进行检索
// return:
// -1 error
// 0 not found
// 1 found
nRet = SearchOneFrom(
// sessioninfo.Channels,
channel,
strDatabaseName,
strFrom,
strKey,
strSearchStyle,
nWeight,
nThreshold,
5000, // ???
(bIncludeOriginRecord == false) ? strOriginBiblioRecPath : null,
out dupset,
out strError);
if (nRet == -1)
{
// ??? 警告检索错误?
continue;
}
if (onedatabase_set == null)
{
onedatabase_set = dupset;
dupset = null; // 避免出 try 范围时被释放。因为内容已经转移给 onedatabase_set 了
continue;
}
if (nRet == 0)
continue;
Debug.Assert(dupset != null, "");
onedatabase_set.EnsureCreateIndex(getTempFileName);
dupset.EnsureCreateIndex(getTempFileName);
// 将dupset和前一个set归并
// 归并可以参考ResultSet中的Merge算法
DupResultSet tempset = new DupResultSet();
tempset.Open(false, getTempFileName);
// 功能: 合并两个数组
// parameters:
// strStyle 运算风格 OR , AND , SUB
// sourceLeft 源左边结果集
// sourceRight 源右边结果集
// targetLeft 目标左边结果集
// targetMiddle 目标中间结果集
// targetRight 目标右边结果集
// bOutputDebugInfo 是否输出处理信息
// strDebugInfo 处理信息
// return
// -1 出错
// 0 成功
nRet = DupResultSet.Merge("OR",
onedatabase_set,
dupset,
null, // targetLeft,
tempset,
null, // targetRight,
false,
out strDebugInfo,
out strError);
if (nRet == -1)
goto ERROR1;
{
if (onedatabase_set != null)
onedatabase_set.Dispose();
onedatabase_set = tempset;
}
}
finally
{
if (dupset != null)
dupset.Dispose();
}
} // end of k loop
} // end of j loop
if (alldatabase_set == null)
{
alldatabase_set = onedatabase_set;
onedatabase_set = null; // 避免出 try 范围时被释放。因为内容已经转移给 alldatabase_set 了
continue;
}
// 合并
if (onedatabase_set != null)
{
DupResultSet tempset0 = new DupResultSet();
tempset0.Open(false, getTempFileName);
alldatabase_set.EnsureCreateIndex(getTempFileName);
onedatabase_set.EnsureCreateIndex(getTempFileName);
nRet = DupResultSet.Merge("OR",
alldatabase_set,
onedatabase_set,
null, // targetLeft,
tempset0,
null, // targetRight,
false,
out strDebugInfo,
out strError);
if (nRet == -1)
goto ERROR1;
{
if (alldatabase_set != null)
alldatabase_set.Dispose();
alldatabase_set = tempset0;
}
}
}
finally
{
if (onedatabase_set != null)
onedatabase_set.Dispose();
}
}
// 最后要按照 Weight和Threshold的差额 对结果集进行排序，便于输出
if (alldatabase_set != null)
{
alldatabase_set.SortStyle = DupResultSetSortStyle.OverThreshold;
alldatabase_set.Sort(getTempFileName);
}
{
if (sessioninfo1.DupResultSet != null)
sessioninfo1.DupResultSet.Dispose();
sessioninfo1.DupResultSet = alldatabase_set;
}
if (alldatabase_set != null)
result.Value = alldatabase_set.Count;
else
result.Value = 0;
return result;
ERROR1:
result.Value = -1;
result.ErrorCode = ErrorCode.SystemError;
result.ErrorInfo = strError;
return result;
}