Mercurial > gemma
annotate pkg/common/attributes.go @ 5688:6281c18b109f sr-v2
Finsh serializing v2 meshes.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Mon, 12 Feb 2024 02:27:41 +0100 |
parents | 5f47eeea988d |
children | 6270951dda28 |
rev | line source |
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1 // This is Free Software under GNU Affero General Public License v >= 3.0 |
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2 // without warranty, see README.md and license for details. |
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3 // |
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4 // SPDX-License-Identifier: AGPL-3.0-or-later |
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5 // License-Filename: LICENSES/AGPL-3.0.txt |
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6 // |
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7 // Copyright (C) 2018, 2019 by via donau |
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH |
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9 // Software engineering by Intevation GmbH |
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10 // |
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11 // Author(s): |
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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13 // * Tom Gottfried <tom.gottfried@intevation.de> |
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14 |
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15 package common |
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16 |
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17 import ( |
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18 "strconv" |
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19 "strings" |
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20 "time" |
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21 |
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22 "gemma.intevation.de/gemma/pkg/log" |
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23 ) |
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24 |
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25 type ( |
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26 // Attributes is a map of optional key/value attributes |
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27 // of a configuration. |
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28 Attributes map[string]string |
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29 |
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30 // AttributesMarshaler is an interface to implement |
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31 // custom marshalling for the implementing type. |
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32 AttributesMarshaler interface { |
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33 MarshalAttributes(Attributes) error |
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34 } |
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35 |
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36 // AttributesUnmarshaler is and interface to implement |
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37 // custom unmarshalling for the implementing type. |
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38 AttributesUnmarshaler interface { |
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39 UnmarshalAttributes(Attributes) error |
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40 } |
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41 ) |
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42 |
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43 // Marshal fills src into ca. |
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44 func (ca Attributes) Marshal(src interface{}) error { |
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45 if ca == nil { |
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46 return nil |
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47 } |
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48 var err error |
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49 if m, ok := src.(AttributesMarshaler); ok { |
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50 err = m.MarshalAttributes(ca) |
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51 } |
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52 return err |
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53 } |
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54 |
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55 // Unmarshal stored ca into dst. |
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56 func (ca Attributes) Unmarshal(dst interface{}) error { |
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57 if ca == nil { |
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58 return nil |
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59 } |
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60 var err error |
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61 if um, ok := dst.(AttributesUnmarshaler); ok { |
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62 err = um.UnmarshalAttributes(ca) |
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63 } |
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64 return err |
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65 } |
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66 |
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67 // Delete removes a key and its associated value from these |
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68 // attriibutes. Return true if the key/value pair was deleted. |
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69 func (ca Attributes) Delete(key string) bool { |
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70 if ca == nil { |
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71 return false |
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72 } |
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73 if _, found := ca[key]; !found { |
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74 return false |
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75 } |
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76 delete(ca, key) |
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77 return true |
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78 } |
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79 |
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80 // Get fetches a value for given key out of the configuration. |
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81 // If the key was not found the bool component of the return value |
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82 // return false. |
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83 func (ca Attributes) Get(key string) (string, bool) { |
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84 if ca == nil { |
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85 return "", false |
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86 } |
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87 value, found := ca[key] |
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88 return value, found |
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89 } |
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90 |
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91 // Set stores a key/value pair in the attributes. |
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92 // Returns true if the storing succeeded. |
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93 func (ca Attributes) Set(key, value string) bool { |
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94 if ca == nil { |
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95 return false |
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96 } |
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97 ca[key] = value |
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98 return true |
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99 } |
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100 |
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101 // Bool returns a bool value for a given key. |
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102 func (ca Attributes) Bool(key string) bool { |
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103 s, found := ca.Get(key) |
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104 return found && strings.ToLower(s) == "true" |
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105 } |
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106 |
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107 // SetBool stores a bool value with a given key in |
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108 // this attributes. |
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109 // Returns true if the storing succeeded. |
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110 func (ca Attributes) SetBool(key string, value bool) bool { |
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111 var v string |
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112 if value { |
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113 v = "true" |
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114 } else { |
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115 v = "false" |
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116 } |
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117 return ca.Set(key, v) |
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118 } |
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119 |
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120 // Date returns a time.Time for a given key. |
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121 // Returns true if the key was found and the |
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122 // represents a date. |
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123 func (ca Attributes) Date(key string) (time.Time, bool) { |
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124 s, found := ca.Get(key) |
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125 if !found { |
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126 return time.Time{}, false |
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127 } |
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128 d, err := time.Parse(DateFormat, s) |
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129 if err != nil { |
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130 log.Errorf("%v\n", err) |
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131 return time.Time{}, false |
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132 } |
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133 return d, true |
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134 } |
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135 |
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136 // SetDate stores a date with a given key in the attributes. |
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137 // Returns true if the storage succeeded. |
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138 func (ca Attributes) SetDate(key string, date time.Time) bool { |
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139 s := date.Format(DateFormat) |
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140 return ca.Set(key, s) |
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141 } |
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142 |
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143 // Time gives a time.Time for a given key. |
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144 func (ca Attributes) Time(key string) (time.Time, bool) { |
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145 s, found := ca.Get(key) |
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146 if !found { |
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147 return time.Time{}, false |
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148 } |
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149 t, err := time.Parse(TimeFormat, s) |
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150 if err != nil { |
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151 log.Errorf("%v\n", err) |
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152 return time.Time{}, false |
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153 } |
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154 return t, true |
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155 } |
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156 |
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157 // SetTime stores a time with a given key in the attributes. |
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158 // Returns true if the storage succeeded. |
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159 func (ca Attributes) SetTime(key string, t time.Time) bool { |
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160 value := t.Format(TimeFormat) |
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161 return ca.Set(key, value) |
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162 |
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163 } |
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164 |
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165 // Int returns an int for a given key. |
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166 // Returns true if the key was found and the value |
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167 // is an integer. |
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168 func (ca Attributes) Int(key string) (int, bool) { |
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169 s, found := ca.Get(key) |
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170 if !found { |
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171 return 0, false |
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172 } |
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173 i, err := strconv.Atoi(s) |
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174 if err != nil { |
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175 log.Errorf("%v\n", err) |
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176 return 0, false |
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177 } |
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178 return i, true |
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179 } |
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180 |
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181 // SetInt stores an int with a given key in the attributes. |
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182 // Returns true if the storage succeeded. |
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183 func (ca Attributes) SetInt(key string, value int) bool { |
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184 v := strconv.Itoa(value) |
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185 return ca.Set(key, v) |
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186 } |
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187 |
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188 // Float returns a float64 for a given key. |
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189 // Returns true if the key was found and the value |
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190 // is a floating point value. |
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191 func (ca Attributes) Float(key string) (float64, bool) { |
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192 s, found := ca.Get(key) |
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193 if !found { |
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194 return 0, false |
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195 } |
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196 f, err := strconv.ParseFloat(s, 64) |
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197 if err != nil { |
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198 log.Errorf("%v\n", err) |
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199 return 0, false |
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200 } |
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201 return f, true |
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202 } |
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203 |
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204 // SetFloat stores an float64 with a given key in the attributes. |
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205 // Returns true if the storage succeeded. |
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206 func (ca Attributes) SetFloat(key string, value float64) bool { |
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207 v := strconv.FormatFloat(value, 'e', -1, 64) |
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208 return ca.Set(key, v) |
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209 } |
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210 |
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211 // Duration returns a duration for a given key. |
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212 // Returns true if the key was found and the value |
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213 // is a duration. |
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214 func (ca Attributes) Duration(key string) (time.Duration, bool) { |
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215 s, found := ca.Get(key) |
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216 if !found { |
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217 return 0, false |
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218 } |
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219 d, err := time.ParseDuration(s) |
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220 if err != nil { |
5490
5f47eeea988d
Use own logging package.
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221 log.Errorf("%v\n", err) |
1985
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Imports: Made retries and the waiting between the attempts configurable.
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parents:
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222 return 0, false |
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parents:
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223 } |
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224 return d, true |
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parents:
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225 } |
2036
74e24ae3205a
Imports: Added a persistent model for the extra attributes.
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parents:
1985
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226 |
4162
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Made 'golint' and 'staticcheck' happy with common package.
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227 // SetDuration stores a duration with a given key in the attributes. |
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Made 'golint' and 'staticcheck' happy with common package.
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parents:
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228 // Returns true if the storage succeeded. |
2036
74e24ae3205a
Imports: Added a persistent model for the extra attributes.
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parents:
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229 func (ca Attributes) SetDuration(key string, value time.Duration) bool { |
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Imports: Added a persistent model for the extra attributes.
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1985
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230 v := value.String() |
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231 return ca.Set(key, v) |
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Imports: Added a persistent model for the extra attributes.
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parents:
1985
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232 } |