view pkg/common/json.go @ 5095:e21cbb9768a2

Prevent duplicate fairway areas In principal, there can be only one or no fairway area at each point on the map. Since polygons from real data will often be topologically inexact, just disallow equal geometries. This will also help to avoid importing duplicates with concurrent imports, once the history of fairway dimensions will be preserved.
author Tom Gottfried <tom@intevation.de>
date Wed, 25 Mar 2020 18:10:02 +0100
parents 24445a618513
children 6270951dda28
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// This is Free Software under GNU Affero General Public License v >= 3.0
// without warranty, see README.md and license for details.
//
// SPDX-License-Identifier: AGPL-3.0-or-later
// License-Filename: LICENSES/AGPL-3.0.txt
//
// Copyright (C) 2018 by via donau
//   – Österreichische Wasserstraßen-Gesellschaft mbH
// Software engineering by Intevation GmbH
//
// Author(s):
//  * Sascha L. Teichmann <sascha.teichmann@intevation.de>

package common

import (
	"encoding/json"
	"strings"
)

// FromJSONString revives data from a JSON string.
func FromJSONString(data string, dst interface{}) error {
	return json.NewDecoder(strings.NewReader(data)).Decode(dst)
}

// ToJSONString serializes src into a string to
// be revived by FromJSONString.
func ToJSONString(src interface{}) (string, error) {
	var b strings.Builder
	if err := json.NewEncoder(&b).Encode(src); err != nil {
		return "", err
	}
	return b.String(), nil
}