support LevelDB key/value database.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

storage/leveldb/leveldb.go

@@ -0,0 +1,134 @@
+package leveldb
+
+import (
+	"fmt"
+	"github.com/appleboy/gorush/config"
+	"github.com/syndtr/goleveldb/leveldb"
+	"strconv"
+)
+
+// Stat variable for redis
+const (
+	TotalCountKey     = "gorush-total-count"
+	IosSuccessKey     = "gorush-ios-success-count"
+	IosErrorKey       = "gorush-ios-error-count"
+	AndroidSuccessKey = "gorush-android-success-count"
+	AndroidErrorKey   = "gorush-android-error-count"
+)
+
+var dbPath string
+
+func setLevelDB(key string, count int64) {
+	db, _ := leveldb.OpenFile(dbPath, nil)
+	value := fmt.Sprintf("%d", count)
+
+	_ = db.Put([]byte(key), []byte(value), nil)
+
+	defer db.Close()
+}
+
+func getLevelDB(key string, count *int64) {
+	db, _ := leveldb.OpenFile(dbPath, nil)
+
+	data, _ := db.Get([]byte(key), nil)
+	*count, _ = strconv.ParseInt(string(data), 10, 64)
+
+	defer db.Close()
+}
+
+// New func implements the storage interface for gorush (https://github.com/appleboy/gorush)
+func New(config config.ConfYaml) *Storage {
+	return &Storage{
+		config: config,
+	}
+}
+
+// Storage is interface structure
+type Storage struct {
+	config config.ConfYaml
+}
+
+// Init client storage.
+func (s *Storage) Init() error {
+	dbPath = s.config.Stat.LevelDB.Path
+	return nil
+}
+
+// Reset Client storage.
+func (s *Storage) Reset() {
+	setLevelDB(TotalCountKey, 0)
+	setLevelDB(IosSuccessKey, 0)
+	setLevelDB(IosErrorKey, 0)
+	setLevelDB(AndroidSuccessKey, 0)
+	setLevelDB(AndroidErrorKey, 0)
+}
+
+// AddTotalCount record push notification count.
+func (s *Storage) AddTotalCount(count int64) {
+	total := s.GetTotalCount() + count
+	setLevelDB(TotalCountKey, total)
+}
+
+// AddIosSuccess record counts of success iOS push notification.
+func (s *Storage) AddIosSuccess(count int64) {
+	total := s.GetIosSuccess() + count
+	setLevelDB(IosSuccessKey, total)
+}
+
+// AddIosError record counts of error iOS push notification.
+func (s *Storage) AddIosError(count int64) {
+	total := s.GetIosError() + count
+	setLevelDB(IosErrorKey, total)
+}
+
+// AddAndroidSuccess record counts of success Android push notification.
+func (s *Storage) AddAndroidSuccess(count int64) {
+	total := s.GetAndroidSuccess() + count
+	setLevelDB(AndroidSuccessKey, total)
+}
+
+// AddAndroidError record counts of error Android push notification.
+func (s *Storage) AddAndroidError(count int64) {
+	total := s.GetAndroidError() + count
+	setLevelDB(AndroidErrorKey, total)
+}
+
+// GetTotalCount show counts of all notification.
+func (s *Storage) GetTotalCount() int64 {
+	var count int64
+	getLevelDB(TotalCountKey, &count)
+
+	return count
+}
+
+// GetIosSuccess show success counts of iOS notification.
+func (s *Storage) GetIosSuccess() int64 {
+	var count int64
+	getLevelDB(IosSuccessKey, &count)
+
+	return count
+}
+
+// GetIosError show error counts of iOS notification.
+func (s *Storage) GetIosError() int64 {
+	var count int64
+	getLevelDB(IosErrorKey, &count)
+
+	return count
+}
+
+// GetAndroidSuccess show success counts of Android notification.
+func (s *Storage) GetAndroidSuccess() int64 {
+	var count int64
+	getLevelDB(AndroidSuccessKey, &count)
+
+	return count
+}
+
+// GetAndroidError show error counts of Android notification.
+func (s *Storage) GetAndroidError() int64 {
+	var count int64
+	getLevelDB(AndroidErrorKey, &count)
+
+	return count
+}

storage/leveldb/leveldb_test.go

@@ -0,0 +1,49 @@
+package leveldb
+
+import (
+	c "github.com/appleboy/gorush/config"
+	"github.com/stretchr/testify/assert"
+	"os"
+	"testing"
+)
+
+func TestLevelDBEngine(t *testing.T) {
+	var val int64
+
+	config := c.BuildDefaultPushConf()
+
+	if _, err := os.Stat(config.Stat.LevelDB.Path); os.IsNotExist(err) {
+		os.RemoveAll(config.Stat.LevelDB.Path)
+	}
+
+	levelDB := New(config)
+	levelDB.Init()
+	levelDB.Reset()
+
+	levelDB.AddTotalCount(10)
+	val = levelDB.GetTotalCount()
+	assert.Equal(t, int64(10), val)
+	levelDB.AddTotalCount(10)
+	val = levelDB.GetTotalCount()
+	assert.Equal(t, int64(20), val)
+
+	levelDB.AddIosSuccess(20)
+	val = levelDB.GetIosSuccess()
+	assert.Equal(t, int64(20), val)
+
+	levelDB.AddIosError(30)
+	val = levelDB.GetIosError()
+	assert.Equal(t, int64(30), val)
+
+	levelDB.AddAndroidSuccess(40)
+	val = levelDB.GetAndroidSuccess()
+	assert.Equal(t, int64(40), val)
+
+	levelDB.AddAndroidError(50)
+	val = levelDB.GetAndroidError()
+	assert.Equal(t, int64(50), val)
+
+	levelDB.Reset()
+	val = levelDB.GetAndroidError()
+	assert.Equal(t, int64(0), val)
+}