// 从结果集中提取指定范围的记录
// parameter:
// strRanges 范围
// strStyle 样式,以逗号分隔，id:表示取id,cols表示取浏览格式,xml表示取xml记录体
// strLang 语言版本，用来获得记录路径
// richRecords 得到的记录数组，成员为类型为Record
// result:
// -1 出错
// >=0 结果集的总数
public long API_GetRichRecords(
DpResultSet resultset,
string strRanges,
string strLang,
string strStyle,
out RichRecord[] richRecords,
out string strError)
{
strError = "";
richRecords = null;
int nCurCount = 0;
List <RichRecord> aRichRecord = new List <RichRecord>();
string strFormat = StringUtil.GetStyleParam(strStyle, "format");
RangeList rangeList = new RangeList(strRanges);
for (int i = 0; i < rangeList.Count; i++)
{
RangeItem rangeItem = (RangeItem)rangeList[i];
int nStart = (int)rangeItem.lStart;
int nLength = (int)rangeItem.lLength;
if (nLength == 0)
{
continue;
}
// long lPos = 0; // 应该用快速方式，不应用[]??? 2006/3/29
for (int j = 0; j < nLength; j++)
{
int nRet = 0;
DpRecord dpRecord = resultset[j + nStart];
RichRecord richRecord = new RichRecord();
DbPath dbpath = new DbPath(dpRecord.ID);
Database db = this.app.Dbs.GetDatabaseSafety(dbpath.Name);
if (db == null) //也应放到本条的记录出错信息里
{
strError = "没有找到数据库'" + dbpath.Name + "'，换语言版本时出错";
richRecord.Result.Value = -1;
richRecord.Result.ErrorCode = KernelApplication.Ret2ErrorCode(nRet);
richRecord.Result.ErrorString = strError;
}
else
{
// 记录路径
if (StringUtil.IsInList("id", strStyle, true) == true ||
StringUtil.IsInList("path", strStyle, true) == true)
{
richRecord.Path = db.GetCaptionSafety(strLang) + "/" + dbpath.CompressedID;
}
// 浏览列
if (StringUtil.IsInList("cols", strStyle, true) == true)
{
string[] cols = null;
nRet = db.GetCols(
strFormat,
dbpath.ID10,
"",
0,
out cols);
// 2013/1/14
if (nRet == -1)
{
if (cols != null && cols.Length > 0)
{
strError = cols[0];
}
else
{
strError = "GetCols() error";
}
return(-1);
}
richRecord.Cols = cols;
}
bool bXml = false;
bool bTimestamp = false;
if (StringUtil.IsInList("xml", strStyle, true) == true)
{
bXml = true;
}
if (StringUtil.IsInList("timestamp", strStyle, true) == true)
{
bTimestamp = true;
}
if (bXml == true ||
bTimestamp == true)
{
string strGetStyle = ""; //"data,timestamp"; // ,outputpath, metadata
if (bTimestamp == true)
{
StringUtil.SetInList(ref strGetStyle, "timestamp", true);
}
if (bXml == true)
{
StringUtil.SetInList(ref strGetStyle, "data", true);
}
int nStart0 = 0;
int nLength0 = -1;
int nMaxLength = 300 * 1024; // 每次最多获取300K
int nTotalLength = 0;
string strOutputID = "";
byte[] baTotal = null;
byte[] baOutputTimestamp = null;
int nAdditionError = 0;
string strMetadata = "";
for (; ;)
{
byte[] baData = null;
long lRet = db.GetXml(dbpath.ID,
"", // strXPath,
nStart0,
nLength0,
nMaxLength,
strGetStyle,
out baData,
out strMetadata,
out strOutputID,
out baOutputTimestamp,
true,
out nAdditionError,
out strError);
if (lRet <= -1)
{
richRecord.Result.Value = -1;
richRecord.Result.ErrorCode = KernelApplication.Ret2ErrorCode(nAdditionError); // nRet?
richRecord.Result.ErrorString = strError;
goto CONTINUE;
}
nTotalLength = (int)lRet;
// 如果数据体太大
if (nTotalLength > QUOTA_SIZE)
{
richRecord.Result.Value = -1;
richRecord.Result.ErrorCode = ErrorCodeValue.CommonError;
richRecord.Result.ErrorString = "数据超过1M";
goto CONTINUE;
}
baTotal = ByteArray.Add(baTotal, baData);
nStart0 += baData.Length;
if (nStart0 >= nTotalLength)
{
break;
}
}
// 记录体
// 转换成字符串
if (StringUtil.IsInList("xml", strStyle, true) == true)
{
richRecord.Xml = ByteArray.ToString(baTotal);
}
// 时间戳?
if (StringUtil.IsInList("timestamp", strStyle, true) == true)
{
richRecord.baTimestamp = baOutputTimestamp;
}
// string strOutputPath = strDbName + "/" + strOutputID;
}
// 记录体
if (StringUtil.IsInList("xml", strStyle, true) == true)
{
/*
* nRet = db.GetXmlDataSafety(dbpath.ID,
* out richRecord.Xml,
* out strError);
* if (nRet <= -1)
* {
* richRecord.Result.Value = -1;
* richRecord.Result.ErrorCode = RmswsApplication.Ret2ErrorCode(nRet);
* richRecord.Result.ErrorString = strError;
* }
* */
}
}
CONTINUE:
aRichRecord.Add(richRecord);
Thread.Sleep(0);
nCurCount++;
// 如果超出最大范围，则停止
if (nCurCount >= SessionInfo.MaxRecordsCountPerApi)
{
break;
}
}
}
richRecords = new RichRecord[aRichRecord.Count];
for (int i = 0; i < richRecords.Length; i++)
{
richRecords[i] = aRichRecord[i];
}
return(resultset.Count);
}
// 从结果集中提取指定范围的记录
// parameter:
// strRanges 范围
// strStyle 样式,以逗号分隔，id:表示取id,cols表示取浏览格式,xml表示取xml记录体
// strLang 语言版本，用来获得记录路径
// richRecords 得到的记录数组，成员为类型为Record
// result:
// -1 出错
// >=0 结果集的总数
public long API_GetRichRecords(
DpResultSet resultset,
string strRanges,
string strLang,
string strStyle,
out RichRecord[] richRecords,
out string strError)
{
strError = "";
richRecords = null;
int nCurCount = 0;
List<RichRecord> aRichRecord = new List<RichRecord>();
string strFormat = StringUtil.GetStyleParam(strStyle, "format");
RangeList rangeList = new RangeList(strRanges);
for (int i = 0; i < rangeList.Count; i++)
{
RangeItem rangeItem = (RangeItem)rangeList[i];
int nStart = (int)rangeItem.lStart;
int nLength = (int)rangeItem.lLength;
if (nLength == 0)
continue;
// long lPos = 0; // 应该用快速方式，不应用[]??? 2006/3/29
for (int j = 0; j < nLength; j++)
{
int nRet = 0;
DpRecord dpRecord = resultset[j + nStart];
RichRecord richRecord = new RichRecord();
DbPath dbpath = new DbPath(dpRecord.ID);
Database db = this.app.Dbs.GetDatabaseSafety(dbpath.Name);
if (db == null) //也应放到本条的记录出错信息里
{
strError = "没有找到数据库'" + dbpath.Name + "'，换语言版本时出错";
richRecord.Result.Value = -1;
richRecord.Result.ErrorCode = KernelApplication.Ret2ErrorCode(nRet);
richRecord.Result.ErrorString = strError;
}
else
{
// 记录路径
if (StringUtil.IsInList("id", strStyle, true) == true
|| StringUtil.IsInList("path", strStyle, true) == true)
{
richRecord.Path = db.GetCaptionSafety(strLang) + "/" + dbpath.CompressedID;
}
// 浏览列
if (StringUtil.IsInList("cols", strStyle, true) == true)
{
string[] cols = null;
/*未完成
nRet = db.GetCols(dbpath.ID10,
out cols,
out strError);
if (nRet <= -1)
{
richRecord.Result.Value = -1;
richRecord.Result.ErrorCode = GlobalInfo.Ret2ErrorCode(nRet);
richRecord.Result.ErrorString = strError;
}
*/
nRet = db.GetCols(
strFormat,
dbpath.ID10,
"",
0,
out cols);
// 2013/1/14
if (nRet == -1)
{
if (cols != null && cols.Length > 0)
strError = cols[0];
else
strError = "GetCols() error";
return -1;
}
richRecord.Cols = cols;
}
bool bXml = false;
bool bTimestamp = false;
if (StringUtil.IsInList("xml", strStyle, true) == true)
bXml = true;
if (StringUtil.IsInList("timestamp", strStyle, true) == true)
bTimestamp = true;
if (bXml == true
|| bTimestamp == true)
{
string strGetStyle = ""; //"data,timestamp"; // ,outputpath, metadata
if (bTimestamp == true)
StringUtil.SetInList(ref strGetStyle, "timestamp", true);
if (bXml == true)
StringUtil.SetInList(ref strGetStyle, "data", true);
int nStart0 = 0;
int nLength0 = -1;
int nMaxLength = 300 * 1024; // 每次最多获取300K
int nTotalLength = 0;
string strOutputID = "";
byte[] baTotal = null;
byte[] baOutputTimestamp = null;
int nAdditionError = 0;
string strMetadata = "";
for (; ; )
{
byte[] baData = null;
long lRet = db.GetXml(dbpath.ID,
"", // strXPath,
nStart0,
nLength0,
nMaxLength,
strGetStyle,
out baData,
out strMetadata,
out strOutputID,
out baOutputTimestamp,
true,
out nAdditionError,
out strError);
if (lRet <= -1)
{
richRecord.Result.Value = -1;
richRecord.Result.ErrorCode = KernelApplication.Ret2ErrorCode(nAdditionError); // nRet?
richRecord.Result.ErrorString = strError;
goto CONTINUE;
}
nTotalLength = (int)lRet;
// 如果数据体太大
if (nTotalLength > QUOTA_SIZE)
{
richRecord.Result.Value = -1;
richRecord.Result.ErrorCode = ErrorCodeValue.CommonError;
richRecord.Result.ErrorString = "数据超过1M";
goto CONTINUE;
}
baTotal = ByteArray.Add(baTotal, baData);
nStart0 += baData.Length;
if (nStart0 >= nTotalLength)
break;
}
// 记录体
// 转换成字符串
if (StringUtil.IsInList("xml", strStyle, true) == true)
{
richRecord.Xml = ByteArray.ToString(baTotal);
}
// 时间戳?
if (StringUtil.IsInList("timestamp", strStyle, true) == true)
{
richRecord.baTimestamp = baOutputTimestamp;
}
// string strOutputPath = strDbName + "/" + strOutputID;
}
// 记录体
if (StringUtil.IsInList("xml", strStyle, true) == true)
{
/*
nRet = db.GetXmlDataSafety(dbpath.ID,
out richRecord.Xml,
out strError);
if (nRet <= -1)
{
richRecord.Result.Value = -1;
richRecord.Result.ErrorCode = RmswsApplication.Ret2ErrorCode(nRet);
richRecord.Result.ErrorString = strError;
}
* */
}
}
CONTINUE:
aRichRecord.Add(richRecord);
Thread.Sleep(0);
nCurCount++;
// 如果超出最大范围，则停止
if (nCurCount >= SessionInfo.MaxRecordsCountPerApi)
break;
}
}
richRecords = new RichRecord[aRichRecord.Count];
for (int i = 0; i < richRecords.Length; i++)
{
richRecords[i] = aRichRecord[i];
}
return resultset.Count;
}