plugin

plugin.go

package main

import (
	"strconv"

	"github.com/rwynn/monstache/monstachemap"
)

// Map a plugin to convert document values to uppercase
func Map(input *monstachemap.MapperPluginInput) (*monstachemap.MapperPluginOutput, error) {
	doc := input.Document

	switch meta := doc["meta"].(type) {
	case map[string]string:
		slat, ok := meta["GPSLatitude"]
		if !ok {
			break
		}

		slon, ok := meta["GPSLongitude"]
		if !ok {
			break
		}

		lat, err := strconv.ParseFloat(slat, 64)
		if err != nil {
			break
		}

		lon, err := strconv.ParseFloat(slon, 64)
		if err != nil {
			break
		}

		doc["GPSLocation"] = map[string]float64{
			"lat": lat,
			"lon": lon,
		}

		return &monstachemap.MapperPluginOutput{Document: doc}, nil
	}

	return &monstachemap.MapperPluginOutput{Passthrough: true}, nil
}