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comparison Framework/Common/ResultBase.cpp @ 0:7cea966b6829

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initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 04 Jul 2018 08:16:29 +0200
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children 714c5d2bee76
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-1:000000000000 0:7cea966b6829
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #include "ResultBase.h"
23
24 #include "../Common/BinaryStringValue.h"
25 #include "../Common/Integer64Value.h"
26 #include "../Common/NullValue.h"
27 #include "../Common/Utf8StringValue.h"
28
29 #include <Core/Logging.h>
30 #include <Core/OrthancException.h>
31
32 #include <cassert>
33 #include <memory>
34
35 namespace OrthancDatabases
36 {
37 void ResultBase::ClearFields()
38 {
39 for (size_t i = 0; i < fields_.size(); i++)
40 {
41 if (fields_[i] != NULL)
42 {
43 delete fields_[i];
44 fields_[i] = NULL;
45 }
46 }
47 }
48
49
50 void ResultBase::ConvertFields()
51 {
52 assert(expectedType_.size() == fields_.size() &&
53 hasExpectedType_.size() == fields_.size());
54
55 for (size_t i = 0; i < fields_.size(); i++)
56 {
57 if (fields_[i] == NULL)
58 {
59 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
60 }
61
62 ValueType sourceType = fields_[i]->GetType();
63 ValueType targetType = expectedType_[i];
64
65 if (hasExpectedType_[i] &&
66 sourceType != ValueType_Null &&
67 sourceType != targetType)
68 {
69 std::auto_ptr<IValue> converted(fields_[i]->Convert(targetType));
70
71 if (converted.get() == NULL)
72 {
73 LOG(ERROR) << "Cannot convert between data types from a database";
74 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadParameterType);
75 }
76 else
77 {
78 assert(fields_[i] != NULL);
79 delete fields_[i];
80 fields_[i] = converted.release();
81 }
82 }
83 }
84 }
85
86
87 void ResultBase::FetchFields()
88 {
89 ClearFields();
90
91 if (!IsDone())
92 {
93 for (size_t i = 0; i < fields_.size(); i++)
94 {
95 fields_[i] = FetchField(i);
96
97 if (fields_[i] == NULL)
98 {
99 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
100 }
101 }
102
103 ConvertFields();
104 }
105 }
106
107
108 void ResultBase::SetFieldsCount(size_t count)
109 {
110 if (!fields_.empty())
111 {
112 // This method can only be invoked once
113 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
114 }
115
116 fields_.resize(count);
117 expectedType_.resize(count, ValueType_Null);
118 hasExpectedType_.resize(count, false);
119 }
120
121
122 void ResultBase::SetExpectedType(size_t field,
123 ValueType type)
124 {
125 assert(expectedType_.size() == fields_.size() &&
126 hasExpectedType_.size() == fields_.size());
127
128 if (field < fields_.size())
129 {
130 expectedType_[field] = type;
131 hasExpectedType_[field] = true;
132
133 if (!IsDone())
134 {
135 ConvertFields();
136 }
137 }
138 }
139
140
141 const IValue& ResultBase::GetField(size_t index) const
142 {
143 if (IsDone())
144 {
145 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
146 }
147 else if (index >= fields_.size())
148 {
149 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
150 }
151 else if (fields_[index] == NULL)
152 {
153 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
154 }
155 else
156 {
157 return *fields_[index];
158 }
159 }
160 }