public ClientResultset NewResultset(string strName)
{
// 加写锁
this.m_lock.AcquireWriterLock(m_nLockTimeout);
try
{
ClientResultset resultset = (ClientResultset)hashtable[strName];
if (resultset == null)
{
resultset = new ClientResultset();
resultset.Name = strName;
hashtable.Add(strName, resultset);
resultset.File.Open(true);
}
return resultset;
}
finally
{
this.m_lock.ReleaseWriterLock();
}
}
public ClientResultset NewResultset(string strName)
{
// 加写锁
this.m_lock.AcquireWriterLock(m_nLockTimeout);
try
{
ClientResultset resultset = (ClientResultset)hashtable[strName];
if (resultset == null)
{
resultset = new ClientResultset();
resultset.Name = strName;
hashtable.Add(strName, resultset);
resultset.File.Open(true);
}
return(resultset);
}
finally
{
this.m_lock.ReleaseWriterLock();
}
}
public ClientResultset GetResultset(string strName)
{
// 加读锁
this.m_lock.AcquireReaderLock(m_nLockTimeout);
try
{
ClientResultset resultset = (ClientResultset)hashtable[strName];
return(resultset);
}
finally
{
this.m_lock.ReleaseReaderLock();
}
}
// 功能: 合并结果集
// 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
// strDebugInfo 处理信息
// return:
// -1 失败
// 0 成功
public static int Merge(string strStyle,
ClientResultset sourceLeft,
ClientResultset sourceRight,
ClientResultset targetLeft,
ClientResultset targetMiddle,
ClientResultset targetRight,
bool bOutputDebugInfo,
out string strDebugInfo,
out string strError)
{
strDebugInfo = "";
strError = "";
if (bOutputDebugInfo == true)
{
strDebugInfo += "strStyle值:"+strStyle+"\r\n";
strDebugInfo += "sourceLeft结果集:\r\n"+sourceLeft.Dump()+"\r\n";
strDebugInfo += "sourceRight结果集:\r\n"+sourceRight.Dump()+"\r\n";
}
if (String.Compare(strStyle,"OR",true) == 0)
{
if (targetLeft!=null || targetRight!=null)
{
Exception ex = new Exception("当strStyle参数值为\"OR\"时，targetLeft参数和targetRight无效，值应为null");
throw(ex);
}
}
if (sourceLeft != null)
{
if (sourceLeft.File.HasIndexed == false)
{
strError = "为了提高运行速度, sourceLeft应在调用Merge()前确保indexed";
return -1;
}
}
if (sourceRight != null)
{
if (sourceRight.File.HasIndexed == false)
{
strError = "为了提高运行速度, sourceRight应在调用Merge()前确保indexed";
return -1;
}
}
ClientRecordItem dpRecordLeft;
ClientRecordItem 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\r\n";
i = -1;
}
else if (i != -1)
{
try
{
dpRecordLeft = (ClientRecordItem)sourceLeft.File[i];
if (bOutputDebugInfo == true)
strDebugInfo += "取出sourceLeft集合中第 "+Convert.ToString(i)+" 个元素，Path为 '"+dpRecordLeft.Path+"' \r\n";
}
catch
{
Exception ex = new Exception("sourceLeft取元素异常: i="+Convert.ToString(i)+"----Count="+Convert.ToString(sourceLeft.Count)+"");
throw(ex);
}
}
if (j >= sourceRight.Count)
{
if (bOutputDebugInfo == true)
strDebugInfo += "j大于等于sourceRight的个数，将j改为-1\r\n";
j = -1;
}
else if (j != -1)
{
try
{
dpRecordRight = (ClientRecordItem)sourceRight.File[j];
if (bOutputDebugInfo == true)
strDebugInfo += "取出sourceRight集合中第 "+Convert.ToString(j)+" 个元素，Path为 '"+dpRecordRight.Path+"'\r\n";
}
catch
{
Exception ex = new Exception("sourceRight取元素异常: 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\r\n";
break;
}
if (dpRecordLeft == null)
{
if (bOutputDebugInfo == true)
strDebugInfo += "dpRecordLeft为null，设ret等于1\r\n";
ret = 1;
}
else if (dpRecordRight == null)
{
if (bOutputDebugInfo == true)
strDebugInfo += "dpRecordRight为null，设ret等于-1\r\n";
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)+"\r\n";
}
if (String.Compare(strStyle,"OR",true) == 0
&& targetMiddle != null)
{
if (ret == 0)
{
targetMiddle.File.Add(dpRecordLeft);
i++;
j++;
}
else if (ret<0)
{
targetMiddle.File.Add(dpRecordLeft);
i++;
}
else if (ret>0)
{
targetMiddle.File.Add(dpRecordRight);
j++;
}
continue;
}
if (ret == 0 && targetMiddle != null)
{
if (bOutputDebugInfo == true)
strDebugInfo += "ret等于0,加到targetMiddle里面\r\n";
targetMiddle.File.Add(dpRecordLeft);
i++;
j++;
}
if (ret<0)
{
if (bOutputDebugInfo == true)
strDebugInfo += "ret小于0,加到targetLeft里面\r\n";
if (targetLeft != null && dpRecordLeft != null)
targetLeft.File.Add(dpRecordLeft);
i++;
}
if (ret>0 )
{
if (bOutputDebugInfo == true)
strDebugInfo += "ret大于0,加到targetRight里面\r\n";
if (targetRight != null && dpRecordRight != null)
targetRight.File.Add(dpRecordRight);
j++;
}
}
return 0;
}
// 功能: 合并结果集
// 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
// strDebugInfo 处理信息
// return:
// -1 失败
// 0 成功
public static int Merge(string strStyle,
ClientResultset sourceLeft,
ClientResultset sourceRight,
ClientResultset targetLeft,
ClientResultset targetMiddle,
ClientResultset targetRight,
bool bOutputDebugInfo,
out string strDebugInfo,
out string strError)
{
strDebugInfo = "";
strError = "";
if (bOutputDebugInfo == true)
{
strDebugInfo += "strStyle值:" + strStyle + "\r\n";
strDebugInfo += "sourceLeft结果集:\r\n" + sourceLeft.Dump() + "\r\n";
strDebugInfo += "sourceRight结果集:\r\n" + sourceRight.Dump() + "\r\n";
}
if (String.Compare(strStyle, "OR", true) == 0)
{
if (targetLeft != null || targetRight != null)
{
Exception ex = new Exception("当strStyle参数值为\"OR\"时，targetLeft参数和targetRight无效，值应为null");
throw (ex);
}
}
if (sourceLeft != null)
{
if (sourceLeft.File.HasIndexed == false)
{
strError = "为了提高运行速度, sourceLeft应在调用Merge()前确保indexed";
return(-1);
}
}
if (sourceRight != null)
{
if (sourceRight.File.HasIndexed == false)
{
strError = "为了提高运行速度, sourceRight应在调用Merge()前确保indexed";
return(-1);
}
}
ClientRecordItem dpRecordLeft;
ClientRecordItem 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\r\n";
}
i = -1;
}
else if (i != -1)
{
try
{
dpRecordLeft = (ClientRecordItem)sourceLeft.File[i];
if (bOutputDebugInfo == true)
{
strDebugInfo += "取出sourceLeft集合中第 " + Convert.ToString(i) + " 个元素，Path为 '" + dpRecordLeft.Path + "' \r\n";
}
}
catch
{
Exception ex = new Exception("sourceLeft取元素异常: i=" + Convert.ToString(i) + "----Count=" + Convert.ToString(sourceLeft.Count) + "");
throw (ex);
}
}
if (j >= sourceRight.Count)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "j大于等于sourceRight的个数，将j改为-1\r\n";
}
j = -1;
}
else if (j != -1)
{
try
{
dpRecordRight = (ClientRecordItem)sourceRight.File[j];
if (bOutputDebugInfo == true)
{
strDebugInfo += "取出sourceRight集合中第 " + Convert.ToString(j) + " 个元素，Path为 '" + dpRecordRight.Path + "'\r\n";
}
}
catch
{
Exception ex = new Exception("sourceRight取元素异常: 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\r\n";
}
break;
}
if (dpRecordLeft == null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "dpRecordLeft为null，设ret等于1\r\n";
}
ret = 1;
}
else if (dpRecordRight == null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "dpRecordRight为null，设ret等于-1\r\n";
}
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) + "\r\n";
}
}
if (String.Compare(strStyle, "OR", true) == 0 &&
targetMiddle != null)
{
if (ret == 0)
{
targetMiddle.File.Add(dpRecordLeft);
i++;
j++;
}
else if (ret < 0)
{
targetMiddle.File.Add(dpRecordLeft);
i++;
}
else if (ret > 0)
{
targetMiddle.File.Add(dpRecordRight);
j++;
}
continue;
}
if (ret == 0 && targetMiddle != null)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret等于0,加到targetMiddle里面\r\n";
}
targetMiddle.File.Add(dpRecordLeft);
i++;
j++;
}
if (ret < 0)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret小于0,加到targetLeft里面\r\n";
}
if (targetLeft != null && dpRecordLeft != null)
{
targetLeft.File.Add(dpRecordLeft);
}
i++;
}
if (ret > 0)
{
if (bOutputDebugInfo == true)
{
strDebugInfo += "ret大于0,加到targetRight里面\r\n";
}
if (targetRight != null && dpRecordRight != null)
{
targetRight.File.Add(dpRecordRight);
}
j++;
}
}
return(0);
}
