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annotate pkg/controllers/common.go @ 3302:ec6163c6687d

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'Historicise' gauges on import Gauge data sets will be updated or a new version will be inserted depending on temporal validity and a timestamp marking the last update in the RIS-Index of a data set. The trigger on date_info is removed because the value is actually an attribut coming from the RIS-Index. Gauge measurements and predictions are associated to the version with matching temporal validity. Bottlenecks are always associated to the actual version of the gauge, although this might change as soon as bottlenecks are 'historicised', too.
author Tom Gottfried <tom@intevation.de>
date Thu, 16 May 2019 18:41:43 +0200
parents 4c254651d80b
children 6521c962a7b6
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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) 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
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14 package controllers
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15
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16 import (
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17 "fmt"
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18 "log"
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19 "strconv"
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20 "strings"
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21
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22 "github.com/jackc/pgx/pgtype"
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23 )
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24
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25 type (
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26 filterNode interface {
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27 serialize(*strings.Builder, *[]interface{})
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28 }
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29
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30 filterTerm struct {
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31 format string
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32 args []interface{}
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33 }
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34
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35 filterNot struct {
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36 filterNode
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37 }
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38
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39 filterAnd []filterNode
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40 filterOr []filterNode
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41 )
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42
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43 func (ft *filterTerm) serialize(stmt *strings.Builder, args *[]interface{}) {
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44 indices := make([]interface{}, len(ft.args))
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45 for i := range indices {
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46 indices[i] = len(*args) + i + 1
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47 }
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48 fmt.Fprintf(stmt, ft.format, indices...)
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49 *args = append(*args, (*ft).args...)
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50 }
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51
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52 func buildFilterTerm(format string, args ...interface{}) *filterTerm {
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53 return &filterTerm{format: format, args: args}
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54 }
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55
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56 func (fa filterAnd) serialize(stmt *strings.Builder, args *[]interface{}) {
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57 for i, node := range fa {
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58 if i > 0 {
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59 stmt.WriteString(" AND ")
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60 }
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61 stmt.WriteByte('(')
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62 node.serialize(stmt, args)
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63 stmt.WriteByte(')')
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64 }
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65 }
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66
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67 func (fo filterOr) serialize(stmt *strings.Builder, args *[]interface{}) {
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68 for i, node := range fo {
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69 if i > 0 {
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70 stmt.WriteString(" OR ")
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71 }
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72 stmt.WriteByte('(')
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73 node.serialize(stmt, args)
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74 stmt.WriteByte(')')
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75 }
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76 }
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77
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78 func (fn *filterNot) serialize(stmt *strings.Builder, args *[]interface{}) {
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79 stmt.WriteString("NOT (")
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80 fn.filterNode.serialize(stmt, args)
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81 stmt.WriteByte(')')
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82 }
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83
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84 func toInt8Array(txt string) *pgtype.Int8Array {
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85 parts := strings.Split(txt, ",")
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86 var ints []int64
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87 for _, part := range parts {
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88 part = strings.TrimSpace(part)
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89 v, err := strconv.ParseInt(part, 10, 64)
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90 if err != nil {
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91 continue
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92 }
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93 ints = append(ints, v)
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94 }
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95 var ia pgtype.Int8Array
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96 if err := ia.Set(ints); err != nil {
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97 log.Printf("warn: %v\n", err)
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98 return nil
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99 }
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100 return &ia
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101 }
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102
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103 func toTextArray(txt string, allowed []string) *pgtype.TextArray {
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104 parts := strings.Split(txt, ",")
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105 var accepted []string
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106 for _, part := range parts {
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107 if part = strings.ToLower(strings.TrimSpace(part)); len(part) == 0 {
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108 continue
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109 }
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110 for _, a := range allowed {
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111 if part == a {
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112 accepted = append(accepted, part)
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113 break
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114 }
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
115 }
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
116 }
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
117 if len(accepted) == 0 {
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
118 return nil
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
119 }
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
120 var ta pgtype.TextArray
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
121 if err := ta.Set(accepted); err != nil {
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
122 log.Printf("warn: %v\n", err)
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
123 return nil
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
124 }
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
125 return &ta
4c254651d80b Added template types "map", "diagram", "report".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3194
diff changeset
126 }