Mercurial > gemma

annotate pkg/controllers/system.go @ 4242:1458c9b0fdaa json-handler-middleware

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Made the sql.Conn in function accessible via the context of the request.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 22 Aug 2019 10:18:13 +0200
parents 27ed6f709195
children d776110b4db0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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 Wilde <sascha.wilde@intevation.de>
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13
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14 package controllers
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15
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16 import (
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17 "bytes"
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18 "context"
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19 "database/sql"
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20 "fmt"
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21 "io/ioutil"
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22 "log"
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23 "net/http"
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24 "regexp"
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25 "strings"
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26 "sync"
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27 "time"
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28
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29 "github.com/gorilla/mux"
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30
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31 "gemma.intevation.de/gemma/pkg/auth"
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32 "gemma.intevation.de/gemma/pkg/common"
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33 "gemma.intevation.de/gemma/pkg/config"
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34 "gemma.intevation.de/gemma/pkg/geoserver"
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35 "gemma.intevation.de/gemma/pkg/imports"
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36 "gemma.intevation.de/gemma/pkg/models"
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37 )
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38
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39 const (
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40 getSettingsSQL = `
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41 SELECT config_key, config_val
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42 FROM sys_admin.system_config`
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43
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44 getConfigSQL = `
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45 SELECT config_val
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46 FROM sys_admin.system_config
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47 WHERE config_key = $1`
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48
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49 updateSettingSQL = `
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50 INSERT INTO sys_admin.system_config (config_key, config_val)
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51 VALUES ($1, $2)
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52 ON CONFLICT (config_key) DO UPDATE SET config_val = $2`
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53
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54 deleteSoundingDiffsSQL = `
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55 DELETE FROM caching.sounding_differences`
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56 )
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57
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58 // System status end points
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59
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60 func showSystemLog(
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61 _ interface{}, req *http.Request,
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62 ) (jr JSONResult, err error) {
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63
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64 serviceName := mux.Vars(req)["service"]
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65 fileName := mux.Vars(req)["file"]
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66
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67 // The following check is currently most likely unnecessary as I wasn't
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68 // able to inject a verbatim '/' via the middleware, but better be on
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69 // the safe site...
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70 if strings.Contains(fileName, "/") {
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71 err = JSONError{http.StatusBadRequest,
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72 "error: no slashes allowed in file name"}
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73 return
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74 }
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75
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76 var path string
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77
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78 switch serviceName {
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79 case "apache2", "postgresql":
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80 path = "/var/log/" + serviceName + "/" + fileName
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81 default:
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82 err = JSONError{http.StatusBadRequest,
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83 "error: invalid service: " + serviceName}
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84 return
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85 }
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86
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87 var txt []byte
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88
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89 if txt, err = ioutil.ReadFile(path); err != nil {
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90 return
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91 }
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92
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93 jr = JSONResult{
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94 Result: struct {
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95 Path string `json:"path"`
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96 Content string `json:"content"`
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97 }{path, string(txt)},
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98 }
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99 return
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100 }
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101
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102 func getSystemConfig(
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103 _ interface{}, req *http.Request,
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104 ) (jr JSONResult, err error) {
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105
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106 cfg := config.PublishedConfig()
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107 if cfg == "" {
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108 jr = JSONResult{Result: strings.NewReader("{}")}
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109 return
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110 }
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111
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112 var data []byte
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113 if data, err = ioutil.ReadFile(cfg); err != nil {
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114 return
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115 }
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116
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117 jr = JSONResult{Result: bytes.NewReader(data)}
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118 return
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119 }
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120
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121 func getSystemSettings(
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122 _ interface{},
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123 req *http.Request,
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124 ) (jr JSONResult, err error) {
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125
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126 var rows *sql.Rows
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127 if rows, err = JSONConn(req).QueryContext(req.Context(), getSettingsSQL); err != nil {
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128 return
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129 }
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130 defer rows.Close()
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131
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132 settings := map[string]string{}
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133
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134 for rows.Next() {
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135 var key, val string
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136 if err = rows.Scan(&key, &val); err != nil {
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137 return
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138 }
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139 settings[key] = val
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140 }
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141 if err = rows.Err(); err != nil {
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142 return
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143 }
a688a478e35f implemented configuration backend and frontend
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144
a688a478e35f implemented configuration backend and frontend
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145 jr = JSONResult{Result: settings}
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146 return
a688a478e35f implemented configuration backend and frontend
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147 }
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148
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149 type reconfFunc func(sql.NullString, string) (func(*http.Request), error)
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150
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151 var (
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152 reconfigureFuncsMu sync.Mutex
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153 reconfigureFuncs = map[string]reconfFunc{}
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154 )
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155
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156 func registerReconfigureFunc(key string, fn reconfFunc) {
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157 reconfigureFuncsMu.Lock()
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158 defer reconfigureFuncsMu.Unlock()
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159 reconfigureFuncs[key] = fn
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160 }
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161
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162 func reconfigureFunc(key string) reconfFunc {
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163 reconfigureFuncsMu.Lock()
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164 defer reconfigureFuncsMu.Unlock()
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165 return reconfigureFuncs[key]
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166 }
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167
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168 var validColorRe = regexp.MustCompile(`#[[:xdigit:]]{6}`)
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169
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170 func reconfigureWMSLayer(
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171 old sql.NullString, curr,
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172 which string,
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173 ) (func(*http.Request), error) {
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174
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175 if !validColorRe.MatchString(curr) {
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176 return nil, fmt.Errorf("'%v' is not a valid color", curr)
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177 }
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178
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179 if !old.Valid || old.String != strings.ToLower(curr) {
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180 return func(*http.Request) { geoserver.ReconfigureStyle(which) }, nil
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181 }
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182
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183 return nil, nil
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184 }
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185
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186 func reconfigureClassBreaks(
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187 old sql.NullString, curr,
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diff changeset
188 which string,
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diff changeset
189 recalc func(*http.Request),
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190 ) (func(*http.Request), error) {
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191
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192 // If new values are broken, don't proceed.
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193 currCVs, err := models.ParseColorValues(curr)
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194 if err != nil {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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195 return nil, err
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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196 }
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197
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198 doBoth := func(req *http.Request) {
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199 log.Printf("info: Trigger re-calculation of %s.", which)
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200 geoserver.ReconfigureStyle(which)
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201 recalc(req)
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202 }
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203
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diff changeset
204 if !old.Valid {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
205 return doBoth, nil
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diff changeset
206 }
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
207
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diff changeset
208 oldCVs, err := models.ParseColorValues(old.String)
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
209 if err != nil {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
210 log.Printf("warn: old config value is broken: %v\n", err)
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
211 return doBoth, nil
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diff changeset
212 }
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diff changeset
213
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
214 if len(currCVs) != len(oldCVs) {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
215 return doBoth, nil
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parents: 3834
diff changeset
216 }
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
217
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
218 colorChanged := false
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
219
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
220 for i := range currCVs {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
221 if currCVs[i].Value != oldCVs[i].Value {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
222 return doBoth, nil
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
223 }
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
224 if currCVs[i].Color != oldCVs[i].Color {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff changeset
225 colorChanged = true
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
226 }
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
227 }
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
228
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
229 // Only the color changed -> no expensive recalc needed.
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
230 if colorChanged {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
231 log.Println("info: Only colors changed.")
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diff changeset
232 return func(*http.Request) { geoserver.ReconfigureStyle(which) }, nil
3854
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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diff changeset
233 }
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
234
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
235 return nil, nil
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3834
diff changeset
236 }
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
237
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diff changeset
238 func init() {
3854
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parents: 3834
diff changeset
239 registerReconfigureFunc("morphology_classbreaks",
4214
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parents: 3929
diff changeset
240 func(old sql.NullString, curr string) (func(*http.Request), error) {
3854
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diff changeset
241 return reconfigureClassBreaks(
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parents: 3834
diff changeset
242 old, curr,
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
243 "sounding_results_contour_lines_geoserver",
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parents: 3929
diff changeset
244 func(req *http.Request) {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
245 if s, ok := auth.GetSession(req); ok {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
246 triggerSoundingResultsContoursRecalc(s.User, curr)
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
247 }
3854
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parents: 3834
diff changeset
248 })
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parents: 3834
diff changeset
249 })
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
250 registerReconfigureFunc("morphology_classbreaks_compare",
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diff changeset
251 func(old sql.NullString, curr string) (func(*http.Request), error) {
3854
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parents: 3834
diff changeset
252 return reconfigureClassBreaks(
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
253 old, curr,
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
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parents: 3834
diff changeset
254 "sounding_differences",
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parents: 3929
diff changeset
255 func(*http.Request) { go deleteSoundingDiffs() })
3854
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parents: 3834
diff changeset
256 })
4232
8aff98c84a5a Example how to style distance_marks WMS layer with templating.
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parents: 4214
diff changeset
257
8aff98c84a5a Example how to style distance_marks WMS layer with templating.
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parents: 4214
diff changeset
258 dm := func(old sql.NullString, curr string) (func(*http.Request), error) {
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parents: 4214
diff changeset
259 return reconfigureWMSLayer(old, curr, "distance_marks_geoserver")
8aff98c84a5a Example how to style distance_marks WMS layer with templating.
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parents: 4214
diff changeset
260 }
8aff98c84a5a Example how to style distance_marks WMS layer with templating.
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parents: 4214
diff changeset
261 registerReconfigureFunc("distance_marks_fill", dm)
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parents: 4214
diff changeset
262 registerReconfigureFunc("distance_marks_stroke", dm)
8aff98c84a5a Example how to style distance_marks WMS layer with templating.
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parents: 4214
diff changeset
263
8aff98c84a5a Example how to style distance_marks WMS layer with templating.
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parents: 4214
diff changeset
264 // TODO: Add more layers.
3833
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parents: 3630
diff changeset
265 }
70a881045efd Trigger reconfiguration of GeoServer if the system settings were written.
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parents: 3630
diff changeset
266
4214
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diff changeset
267 func triggerSoundingResultsContoursRecalc(who, breaks string) {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
268 var serialized string
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parents: 3929
diff changeset
269 job := &imports.IsoRefresh{ClassBreaks: breaks}
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
270 serialized, err := common.ToJSONString(job)
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parents: 3929
diff changeset
271 if err != nil {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
272 log.Printf("error: %v\n", err)
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
273 return
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
274 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
275 var jobID int64
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
276 if jobID, err = imports.AddJob(
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
277 imports.ISRJobKind,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
278 time.Time{},
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
279 nil,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
280 nil,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
281 who,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
282 false,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
283 serialized,
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3929
diff changeset
284 ); err != nil {
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3929
diff changeset
285 log.Printf("error: %v\n", err)
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3929
diff changeset
286 return
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
287 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
288 log.Printf(
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
289 "info: Recalculate sounding results contours in job %d.\n",
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
290 jobID)
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
291
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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parents: 3929
diff changeset
292 }
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3929
diff changeset
293
3929
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3854
diff changeset
294 func deleteSoundingDiffs() {
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
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parents: 3854
diff changeset
295 // TODO: Better do that in import queue?
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
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parents: 3854
diff changeset
296 ctx := context.Background()
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
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parents: 3854
diff changeset
297
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
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parents: 3854
diff changeset
298 if err := auth.RunAs(ctx, "sys_admin",
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
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parents: 3854
diff changeset
299 func(conn *sql.Conn) error {
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
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parents: 3854
diff changeset
300 _, err := conn.ExecContext(ctx, deleteSoundingDiffsSQL)
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3854
diff changeset
301 return err
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
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parents: 3854
diff changeset
302 },
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3854
diff changeset
303 ); err != nil {
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3854
diff changeset
304 log.Printf("error: Cleaning sounding diffs cache failed: %v\n", err)
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3854
diff changeset
305 }
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3854
diff changeset
306 }
45be361f2d48 If the settings for sounding diffs are changed in a way that they need recalculation, flush the cache.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3854
diff changeset
307
3625
a688a478e35f implemented configuration backend and frontend
Markus Kottlaender <markus@intevation.de>
parents: 3108
diff changeset
308 func setSystemSettings(
a688a478e35f implemented configuration backend and frontend
Markus Kottlaender <markus@intevation.de>
parents: 3108
diff changeset
309 input interface{},
a688a478e35f implemented configuration backend and frontend
Markus Kottlaender <markus@intevation.de>
parents: 3108
diff changeset
310 req *http.Request,
a688a478e35f implemented configuration backend and frontend
Markus Kottlaender <markus@intevation.de>
parents: 3108
diff changeset
311 ) (jr JSONResult, err error) {
a688a478e35f implemented configuration backend and frontend
Markus Kottlaender <markus@intevation.de>
parents: 3108
diff changeset
312
3628
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
313 settings := input.(*map[string]string)
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
314
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
315 ctx := req.Context()
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
316 var tx *sql.Tx
4242
1458c9b0fdaa Made the sql.Conn in function accessible via the context of the request.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4236
diff changeset
317 if tx, err = JSONConn(req).BeginTx(ctx, nil); err != nil {
3628
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
318 return
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
319 }
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
320 defer tx.Rollback()
3625
a688a478e35f implemented configuration backend and frontend
Markus Kottlaender <markus@intevation.de>
parents: 3108
diff changeset
321
3628
6693be57b7a2 Re-worked the Go part a little bit.
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parents: 3625
diff changeset
322 var setStmt *sql.Stmt
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
323 if setStmt, err = tx.PrepareContext(ctx, updateSettingSQL); err != nil {
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
324 return
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
325 }
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
326 defer setStmt.Close()
3834
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
327 var getStmt *sql.Stmt
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
328 if getStmt, err = tx.PrepareContext(ctx, getConfigSQL); err != nil {
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
329 return
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
330 }
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
331 defer getStmt.Close()
3628
6693be57b7a2 Re-worked the Go part a little bit.
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parents: 3625
diff changeset
332
4214
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parents: 3929
diff changeset
333 reconfigure := map[string]func(*http.Request){}
3833
70a881045efd Trigger reconfiguration of GeoServer if the system settings were written.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3630
diff changeset
334
3628
6693be57b7a2 Re-worked the Go part a little bit.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3625
diff changeset
335 for key, value := range *settings {
3834
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
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parents: 3833
diff changeset
336 var old sql.NullString
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
337 err = getStmt.QueryRowContext(ctx, key).Scan(&old)
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
338 switch {
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
339 case err == sql.ErrNoRows:
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
340 old.Valid, err = false, nil
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
341 case err != nil:
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
342 return
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
343 }
3833
70a881045efd Trigger reconfiguration of GeoServer if the system settings were written.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3630
diff changeset
344
3854
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3834
diff changeset
345 if cmp := reconfigureFunc(key); cmp != nil {
4214
49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3929
diff changeset
346 var fn func(*http.Request)
3854
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3834
diff changeset
347 if fn, err = cmp(old, value); err != nil {
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3834
diff changeset
348 return
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3834
diff changeset
349 }
3fcc4e11fc00 Validate the config values of the morpho classes when saving. Also don't trigger the expensive re-calculation of the contour lines if only the colors changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3834
diff changeset
350 if fn != nil {
3834
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
351 reconfigure[key] = fn
d68c6be758b6 Only trigger the reconfiguation functions if the values have changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3833
diff changeset
352 }
3833
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353 }
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354
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355 if _, err = setStmt.ExecContext(ctx, key, value); err != nil {
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356 return
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357 }
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358 }
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359
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360 if err = tx.Commit(); err != nil {
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361 return
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362 }
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363
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364 for _, fn := range reconfigure {
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49564382ffff Added a import queue job to recalculate the contour lines of the sounding results if the heights have changed.
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365 fn(req)
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366 }
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367
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368 jr = JSONResult{
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369 Code: http.StatusCreated,
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370 Result: struct {
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371 Result string `json:"result"`
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372 }{"success"},
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373 }
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374 return
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375 }