1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkSQLTableReader.cxx,v $
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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.
=========================================================================*/
/*----------------------------------------------------------------------------
Copyright (c) Sandia Corporation
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
#include "vtkSQLTableReader.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkSQLQuery.h"
#include "vtkStringArray.h"
#include "vtkTable.h"
#include "vtkTypeUInt64Array.h"
#include "vtkVariant.h"
#include "vtkVariantArray.h"
vtkCxxRevisionMacro(vtkSQLTableReader, "$Revision: 1.1 $");
vtkStandardNewMacro(vtkSQLTableReader);
vtkSQLTableReader::vtkSQLTableReader()
{
this->SetNumberOfInputPorts(0);
this->Query = NULL;
}
vtkSQLTableReader::~vtkSQLTableReader()
{
if (this->Query)
{
this->Query->Delete();
this->Query = NULL;
}
}
void vtkSQLTableReader::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Query: " << (this->Query ? "" : "NULL") << endl;
if (this->Query)
{
this->Query->PrintSelf(os, indent.GetNextIndent());
}
}
vtkCxxSetObjectMacro(vtkSQLTableReader, Query, vtkSQLQuery);
unsigned long vtkSQLTableReader::GetMTime()
{
unsigned long mTime = this->Superclass::GetMTime();
if (this->Query != NULL)
{
unsigned long time = this->Query->GetMTime();
mTime = (time > mTime ? time : mTime);
}
return mTime;
}
int vtkSQLTableReader::RequestData(
vtkInformation*,
vtkInformationVector** vtkNotUsed(inputVector),
vtkInformationVector* outputVector)
{
if (this->Query == NULL)
{
vtkErrorMacro("Query undefined.");
return 0;
}
vtkTable* output = vtkTable::GetData(outputVector);
// Set up the columns
this->Query->Execute();
// Check for query error
if (this->Query->HasError())
{
vtkErrorMacro("Query Error: " << this->Query->GetLastErrorText());
return 0;
}
int cols = this->Query->GetNumberOfFields();
for (int c = 0; c < cols; c++)
{
vtkAbstractArray* arr;
int type = this->Query->GetFieldType(c);
// Take care of the special case of uint64
// to ensure timepoints have specific array type
if (type == VTK_TYPE_UINT64)
{
arr = vtkTypeUInt64Array::New();
}
else
{
arr = vtkAbstractArray::CreateArray(type);
}
arr->SetName(this->Query->GetFieldName(c));
output->AddColumn(arr);
arr->Delete();
}
// Fill the table
vtkVariantArray* rowArray = vtkVariantArray::New();
while (this->Query->NextRow(rowArray))
{
output->InsertNextRow(rowArray);
}
rowArray->Delete();
return 1;
}
|
