// 获得记录
// 本函数每次调用前，最好调用一次 TryInitialize()
// 不确保一定可以获得nCount个
// parameters:
// nStart 获取记录的开始位置(从0开始计数)
public async Task <PresentResult> OncePresent(
string strResultSetName,
int nStart,
int nCount,
string strElementSetName,
string strPreferredRecordSyntax)
{
if (nCount == 0)
{
return new PresentResult {
Value = 0, ErrorInfo = "nCount 参数为 0，本次没有真正请求服务器获取记录"
}
}
;
BerTree tree = new BerTree();
PRESENT_REQUEST struPresent_request = new PRESENT_REQUEST();
//byte[] baPackage = null;
//int nRet;
struPresent_request.m_strReferenceId = this._currentRefID;
struPresent_request.m_strResultSetName = strResultSetName; // "default";
struPresent_request.m_lResultSetStartPoint = nStart + 1;
struPresent_request.m_lNumberOfRecordsRequested = nCount;
struPresent_request.m_strElementSetNames = strElementSetName;
struPresent_request.m_strPreferredRecordSyntax = strPreferredRecordSyntax;
int nRet = tree.PresentRequest(struPresent_request,
out byte[] baPackage);
if (nRet == -1)
{
return new PresentResult {
Value = -1, ErrorInfo = "CBERTree::PresentRequest() fail!"
}
}
;
if (this._channel.Connected == false)
{
this.CloseConnection();
return(new PresentResult {
Value = -1, ErrorInfo = "socket尚未连接或者已经被关闭"
});
}
#if DUMPTOFILE
DeleteFile("presentrequest.bin");
DumpPackage("presentrequest.bin",
(char *)baPackage.GetData(),
baPackage.GetSize());
DeleteFile("presentrequest.txt");
tree.m_RootNode.DumpToFile("presentrequest.txt");
#endif
BerTree tree1 = new BerTree();
{
RecvResult result = await this._channel.SendAndRecv(
baPackage);
if (result.Value == -1)
{
return(new PresentResult(result));
}
#if DUMPTOFILE
DeleteFile("presendresponse.bin");
DumpPackage("presentresponse.bin",
(char *)baPackage.GetData(),
baPackage.GetSize());
#endif
tree1.m_RootNode.BuildPartTree(result.Package,
0,
result.Package.Length,
out int nTotalLen);
}
#if DUMPTOFILE
DeleteFile("PresentResponse.txt");
tree1.m_RootNode.DumpDebugInfoToFile("PresentResponse.txt");
#endif
SEARCH_RESPONSE search_response = new SEARCH_RESPONSE();
nRet = BerTree.GetInfo_PresentResponse(tree1.GetAPDuRoot(),
ref search_response,
out RecordCollection records,
true,
out string strError);
if (nRet == -1)
{
return new PresentResult {
Value = -1, ErrorInfo = strError
}
}
;
SetElementSetName(records, strElementSetName);
if (search_response.m_diagRecords.Count != 0)
{
return new PresentResult {
Value = -1, ErrorInfo = "error diagRecords:\r\n\r\n---\r\n" + search_response.m_diagRecords.GetMessage()
}
}
;
return(new PresentResult {
Records = records
});
}
// 获得记录
// 不确保一定可以获得nCount个
// parameters:
// nStart 开始记录(从0计算)
int DoOncePresent(
ZConnection connection,
string strResultSetName,
int nStart,
int nCount,
string strElementSetName,
string strPreferredRecordSyntax,
out RecordCollection records,
out string strError)
{
records = null;
strError = "";
if (nCount == 0)
{
strError = "nCount为0";
return 0;
}
BerTree tree = new BerTree();
PRESENT_REQUEST struPresent_request = new PRESENT_REQUEST();
byte[] baPackage = null;
int nRet;
int nRecvLen;
// -->
BerTree tree1 = new BerTree();
int nTotlen = 0;
struPresent_request.m_strReferenceId = this.CurrentRefID;
struPresent_request.m_strResultSetName = strResultSetName; // "default";
struPresent_request.m_lResultSetStartPoint = nStart + 1;
struPresent_request.m_lNumberOfRecordsRequested = nCount;
struPresent_request.m_strElementSetNames = strElementSetName;
struPresent_request.m_strPreferredRecordSyntax = strPreferredRecordSyntax;
nRet = tree.PresentRequest(struPresent_request,
out baPackage);
if (nRet == -1)
{
strError = "CBERTree::PresentRequest() fail!";
return -1;
}
#if DUMPTOFILE
DeleteFile("presentrequest.bin");
DumpPackage("presentrequest.bin",
(char *)baPackage.GetData(),
baPackage.GetSize());
DeleteFile ("presentrequest.txt");
tree.m_RootNode.DumpToFile("presentrequest.txt");
#endif
nRet = CheckConnect(
connection,
out strError);
if (nRet == -1)
return -1;
/*
nRet = this.ZChannel.SendTcpPackage(
baPackage,
baPackage.Length,
out strError);
if (nRet == -1 || nRet == 1)
{
// CloseZAssociation();
return -1;
}
//////////////
baPackage = null;
nRet = this.ZChannel.RecvTcpPackage(
out baPackage,
out nRecvLen,
out strError);
if (nRet == -1)
{
// CloseZAssociation();
goto ERROR1;
}
* */
byte [] baOutPackage = null;
nRet = connection.ZChannel.SendAndRecv(
baPackage,
out baOutPackage,
out nRecvLen,
out strError);
if (nRet == -1)
return -1;
#if DUMPTOFILE
DeleteFile("presendresponse.bin");
DumpPackage("presentresponse.bin",
(char *)baPackage.GetData(),
baPackage.GetSize());
#endif
tree1.m_RootNode.BuildPartTree(baOutPackage,
0,
baOutPackage.Length,
out nTotlen);
#if DUMPTOFILE
DeleteFile("PresentResponse.txt");
tree1.m_RootNode.DumpDebugInfoToFile("PresentResponse.txt");
#endif
SEARCH_RESPONSE search_response = new SEARCH_RESPONSE();
nRet = BerTree.GetInfo_PresentResponse(tree1.GetAPDuRoot(),
ref search_response,
out records,
true,
out strError);
if (nRet == -1)
goto ERROR1;
/*
nRet = FitDebugInfo_PresentResponse(&tree1,
strError);
if (nRet == -1) {
goto ERROR1;
}
DeleteFile("PresentResponse.txt");
tree1.m_RootNode.DumpDebugInfoToFile("PresentResponse.txt");
*/
if (search_response.m_diagRecords.Count != 0)
{
/*
string strDiagText;
string strAddInfo;
nRet = GetDiagTextByNumber("bib1diag.txt",
m_search_response.m_nDiagCondition,
strDiagText,
strAddInfo,
strError);
if (nRet == -1) {
if (this->m_bAllowMessageBox)
AfxMessageBox(strError);
return -1;
}
if (strDiagText.GetLength())
strError = strDiagText;
else
strError.Format("diag condition[%d] diag set id[%s]",
m_search_response.m_nDiagCondition,
m_search_response.m_strDiagSetID);
* */
strError = "error diagRecords:\r\n\r\n---\r\n" + search_response.m_diagRecords.GetMessage();
return -1;
}
return 0;
ERROR1:
return -1;
}