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1 /**
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2 * Palantir - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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17
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are
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8 * met:
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9 *
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10 * * Redistributions of source code must retain the above copyright
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11 * notice, this list of conditions and the following disclaimer.
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12 * * Redistributions in binary form must reproduce the above
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13 * copyright notice, this list of conditions and the following disclaimer
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14 * in the documentation and/or other materials provided with the
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15 * distribution.
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16 * * Neither the name of the CHU of Liege, nor the names of its
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17 * contributors may be used to endorse or promote products derived
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18 * from this software without specific prior written permission.
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19 *
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20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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31 **/
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32
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33
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34 #include "FunctionContext.h"
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35
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36 #include <sqlite3.h>
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37
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38 namespace Palantir
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39 {
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40 namespace SQLite
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41 {
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42 FunctionContext::FunctionContext(struct sqlite3_context* context,
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43 int argc,
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44 struct ::Mem** argv)
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45 {
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46 assert(context != NULL);
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47 assert(argc >= 0);
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48 assert(argv != NULL);
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49
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50 context_ = context;
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51 argc_ = static_cast<unsigned int>(argc);
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52 argv_ = argv;
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53 }
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54
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55 void FunctionContext::CheckIndex(unsigned int index) const
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56 {
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57 if (index >= argc_)
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58 {
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59 throw PalantirException(ErrorCode_ParameterOutOfRange);
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60 }
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61 }
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62
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63 ColumnType FunctionContext::GetColumnType(unsigned int index) const
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64 {
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65 CheckIndex(index);
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66 return static_cast<SQLite::ColumnType>(sqlite3_value_type(argv_[index]));
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67 }
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68
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69 int FunctionContext::GetIntValue(unsigned int index) const
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70 {
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71 CheckIndex(index);
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72 return sqlite3_value_int(argv_[index]);
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73 }
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74
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75 double FunctionContext::GetDoubleValue(unsigned int index) const
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76 {
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77 CheckIndex(index);
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78 return sqlite3_value_double(argv_[index]);
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79 }
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80
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81 std::string FunctionContext::GetStringValue(unsigned int index) const
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82 {
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83 CheckIndex(index);
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84 return std::string(reinterpret_cast<const char*>(sqlite3_value_text(argv_[index])));
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85 }
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86
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87 void FunctionContext::SetNullResult()
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88 {
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89 sqlite3_result_null(context_);
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90 }
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91
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92 void FunctionContext::SetIntResult(int value)
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93 {
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94 sqlite3_result_int(context_, value);
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95 }
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96
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97 void FunctionContext::SetDoubleResult(double value)
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98 {
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99 sqlite3_result_double(context_, value);
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100 }
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101
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102 void FunctionContext::SetStringResult(const std::string& str)
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103 {
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104 sqlite3_result_text(context_, str.data(), str.size(), SQLITE_TRANSIENT);
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105 }
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106 }
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107 }
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