Mercurial > gemma
annotate pkg/models/isrs.go @ 1905:4f58bada50b8 dev-pdf-generation
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author | Bernhard Reiter <bernhard@intevation.de> |
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date | Fri, 18 Jan 2019 17:10:16 +0100 |
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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 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 // * Raimund Renkert <raimund.renkert@intevation.de> |
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13 // * Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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14 |
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15 package models |
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16 |
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17 import ( |
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18 "encoding/json" |
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19 "errors" |
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20 "fmt" |
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21 "strconv" |
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22 ) |
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23 |
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24 // Isrs represents the gauge identification data structure |
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25 type Isrs struct { |
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26 CountryCode string |
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27 LoCode string |
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28 FairwaySection string |
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29 Orc string |
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30 Hectometre int |
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31 } |
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32 |
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33 func (isrs *Isrs) UnmarshalJSON(data []byte) error { |
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34 var s string |
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35 if err := json.Unmarshal(data, &s); err != nil { |
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36 return err |
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37 } |
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38 in, err := IsrsFromString(s) |
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39 if err != nil { |
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40 return err |
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41 } |
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42 *isrs = *in |
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43 return nil |
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44 } |
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45 |
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46 // IsrsFromString converts string representation of isrs code to type Isrs |
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47 func IsrsFromString(isrsCode string) (*Isrs, error) { |
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48 if len(isrsCode) < 20 { |
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49 return nil, errors.New("ISRS code too short") |
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50 } |
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51 hm, err := strconv.Atoi(isrsCode[15:20]) |
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52 if err != nil { |
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53 return nil, err |
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54 } |
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55 isrs := Isrs{ |
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56 CountryCode: isrsCode[0:2], |
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57 LoCode: isrsCode[2:5], |
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58 FairwaySection: isrsCode[5:10], |
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59 Orc: isrsCode[10:15], |
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60 Hectometre: hm, |
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61 } |
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62 return &isrs, nil |
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63 } |
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64 |
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65 // String creates a isrs code string from Isrs |
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66 func (isrs *Isrs) String() string { |
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67 return fmt.Sprintf("%s%s%s%s%05d", |
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68 isrs.CountryCode, |
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69 isrs.LoCode, |
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70 isrs.FairwaySection, |
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71 isrs.Orc, |
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72 isrs.Hectometre) |
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73 } |