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/*******************************************************************/
/* XDMF */
/* eXtensible Data Model and Format */
/* */
/* Id : Id */
/* Date : $Date$ */
/* Version : $Revision$ */
/* */
/* Author: */
/* Jerry A. Clarke */
/* clarke@arl.army.mil */
/* US Army Research Laboratory */
/* Aberdeen Proving Ground, MD */
/* */
/* Copyright @ 2008 US Army Research Laboratory */
/* All Rights Reserved */
/* See Copyright.txt or http://www.arl.hpc.mil/ice for details */
/* */
/* This software is distributed WITHOUT ANY WARRANTY; without */
/* even the implied warranty of MERCHANTABILITY or FITNESS */
/* FOR A PARTICULAR PURPOSE. See the above copyright notice */
/* for more information. */
/* */
/*******************************************************************/
#include "XdmfValuesMySQL.h"
#include "XdmfDataStructure.h"
#include "XdmfArray.h"
#include "XdmfHDF.h"
#include "mysql.h"
XdmfValuesMySQL::XdmfValuesMySQL() {
this->Password = 0;
this->DataBase = 0;
this->Query = 0;
this->Server = 0;
this->User = 0;
this->SetFormat(XDMF_FORMAT_MYSQL);
this->SetServer("localhost");
this->SetUser("root");
}
XdmfValuesMySQL::~XdmfValuesMySQL() {
}
XdmfArray *
XdmfValuesMySQL::Read(XdmfArray *anArray){
XdmfArray *RetArray = anArray;
XdmfInt64 ResultLength, Fields, Rows, Index, NValues;
XdmfInt32 FieldIndex;
XdmfConstString Value;
MYSQL *Connection;
MYSQL_RES *Result;
MYSQL_FIELD *Field;
MYSQL_ROW Row;
if(!this->DataDesc){
XdmfErrorMessage("DataDesc has not been set");
return(NULL);
}
// Allocate anArray if Necessary
if(!RetArray){
RetArray = new XdmfArray();
RetArray->CopyType(this->DataDesc);
RetArray->CopyShape(this->DataDesc);
// RetArray->CopySelection(this->DataDesc);
}
XdmfDebug("Accessing MySQL CDATA");
Value = this->Get("Query");
if(Value){
this->SetQuery(Value);
}else{
this->SetQuery(this->Get("CDATA"));
}
Value = this->Get("Server");
if(Value){
this->SetServer(Value);
}else{
this->SetServer("localhost");
}
Value = this->Get("User");
if(Value){
this->SetUser(Value);
}else{
this->SetUser("root");
}
Value = this->Get("Password");
if(Value){
this->SetPassword(Value);
}else{
this->Password = NULL;
}
Value = this->Get("DataBase");
if(Value){
this->SetDataBase(Value);
}else{
this->SetDataBase("Xdmf");
}
if(!(Connection = mysql_init(NULL))){
XdmfErrorMessage("Cannot Initialize MySQL");
return(NULL);
}
if(!mysql_real_connect(Connection, this->Server, this->User,
this->Password, this->DataBase, 0, NULL, 0)){
XdmfErrorMessage("Error Making MySQL Connection : " << mysql_error(Connection));
mysql_close(Connection);
return(NULL);
}
if(mysql_query(Connection, this->Query)){
XdmfErrorMessage("Using Query : " << this->Query);
XdmfErrorMessage("Error Making MySQL Query : " << mysql_error(Connection));
mysql_close(Connection);
return(NULL);
}
Result = mysql_use_result(Connection);
// Result = mysql_store_result(Connection);
Fields = mysql_num_fields(Result);
Rows = mysql_num_rows(Result);
XdmfDebug("Query " << this->Query << " Returned " << Fields << " Fields");
XdmfDebug("Query " << this->Query << " Returned " << Rows << " Rows");
NValues = this->DataDesc->GetSelectionSize();
// RetArray->SetNumberOfElements(Fields * Rows);
Index = 0;
while((Row = mysql_fetch_row(Result)) && (Index < NValues)){
for(FieldIndex = 0 ; FieldIndex < Fields ; FieldIndex++){
RetArray->SetValues(Index++, Row[FieldIndex]);
}
}
if(this->DataDesc->GetSelectionSize() != RetArray->GetNumberOfElements() ){
// Only Want Portion of anArray
XdmfArray *SrcArray;
XdmfInt64 SelectionSize = this->DataDesc->GetSelectionSize();
XdmfDebug("Selecting " << SelectionSize << " elements of XML CDATA");
SrcArray = RetArray->Clone();
RetArray->SetShape(1, &SelectionSize);
RetArray->SelectAll();
SrcArray->CopySelection(this->DataDesc);
XdmfDebug("Original Values = " << SrcArray->GetValues());
CopyArray(SrcArray, RetArray);
XdmfDebug("New Values = " << RetArray->GetValues());
delete SrcArray;
}
mysql_free_result(Result);
mysql_close(Connection);
return(RetArray);
}
XdmfInt32
XdmfValuesMySQL::Write(XdmfArray *anArray, XdmfConstString /*HeavyDataSetName*/){
XdmfConstString DataValues;
ostrstream StringOutput;
XdmfInt32 rank, r;
XdmfInt64 i, index, nelements, len, idims[XDMF_MAX_DIMENSION], dims[XDMF_MAX_DIMENSION];
if(!this->DataDesc ){
XdmfErrorMessage("DataDesc has not been set");
return(XDMF_FAIL);
}
if(!anArray){
XdmfErrorMessage("Array to Write is NULL");
return(XDMF_FAIL);
}
rank = this->DataDesc->GetShape(dims);
for(i = 0 ; i < rank ; i++){
idims[i] = dims[i];
}
// At most 10 values per line
len = MIN(dims[rank - 1], 10);
nelements = this->DataDesc->GetNumberOfElements();
index = 0;
StringOutput << endl;
while(nelements){
r = rank - 1;
len = MIN(len, nelements);
DataValues = anArray->GetValues(index, len);
StringOutput << DataValues << endl;
index += len;
nelements -= len;
dims[r] -= len;
// End of Smallest dimension ?
if(nelements && r && (dims[r] <= 0)){
// Reset
dims[r] = idims[r];
// Go Backwards thru dimensions
while(r){
r--;
dims[r]--;
// Is dim now 0
if(dims[r] <= 0){
// Add an Endl and keep going
StringOutput << endl;
dims[r] = idims[r];
}else{
// Still some left
break;
}
}
}
}
StringOutput << ends;
return(this->Set("CDATA", StringOutput.str()));
}
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