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Counter.go
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Counter.go
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// ThingsConstruction, a code generator for WoT-based models
// Copyright (C) 2017,2018 @aschmidt75
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// This program is dual-licensed. For commercial licensing options, please
// contact the author(s).
//
//
package main
import (
"fmt"
"github.com/gomodule/redigo/redis"
)
type Counter interface {
Increment(category string, detail string)
}
type InMemoryCounter struct {
}
type RedisCounter struct {
Host string `yaml:"host"`
Port int `yaml:"port"`
}
func NewInMemoryCounter() *InMemoryCounter {
c := &InMemoryCounter{}
return c
}
func (imc InMemoryCounter) Increment(category string, detail string) {
//
}
func NewRedisCounter(redisHost string, redisPort int) *RedisCounter {
c := &RedisCounter{
Host: redisHost,
Port: redisPort,
}
return c
}
func (rc RedisCounter) Increment(category string, detail string) {
go func(category string, detail string) {
c, err := redis.Dial("tcp", fmt.Sprintf("%s:%d", rc.Host, rc.Port))
if err != nil {
Debug.Printf("Unable to open connection to redis: %s", err)
return
}
defer c.Close()
cmd := fmt.Sprintf("%s:%s", category, detail)
_, err = c.Do("INCR", cmd)
if err != nil {
Debug.Printf("Error incrementing value: %s", err)
return
}
}(category, detail)
}