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104 lines
2.1 KiB
104 lines
2.1 KiB
package param |
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import ( |
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"context" |
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"encoding/json" |
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"fmt" |
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"strconv" |
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"time" |
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"go-common/app/interface/main/app-resource/conf" |
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"go-common/app/interface/main/app-resource/dao/param" |
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"go-common/app/interface/main/app-resource/model" |
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mparam "go-common/app/interface/main/app-resource/model/param" |
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"go-common/library/ecode" |
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"go-common/library/log" |
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farm "github.com/dgryski/go-farm" |
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) |
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const ( |
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_initVersion = "param_version" |
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_platKey = "param_%d" |
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) |
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// Service param service. |
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type Service struct { |
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dao *param.Dao |
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tick time.Duration |
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// model param cache |
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cache map[string][]*mparam.Param |
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} |
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// New new a param service. |
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func New(c *conf.Config) (s *Service) { |
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s = &Service{ |
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dao: param.New(c), |
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tick: time.Duration(c.Tick), |
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cache: map[string][]*mparam.Param{}, |
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} |
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s.load() |
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go s.loadproc() |
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return |
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} |
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// Param return param to string |
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func (s *Service) Param(plat int8, build int, ver string) (res map[string]string, version string, err error) { |
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res, version, err = s.getCache(plat, build, ver) |
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return |
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} |
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func (s *Service) getCache(plat int8, build int, ver string) (res map[string]string, version string, err error) { |
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var ( |
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pk = fmt.Sprintf(_platKey, plat) |
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) |
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res = map[string]string{} |
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for _, p := range s.cache[pk] { |
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if model.InvalidBuild(build, p.Build, p.Condition) { |
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continue |
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} |
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res[p.Name] = p.Value |
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} |
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if version = s.hash(res); version == ver { |
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err = ecode.NotModified |
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res = nil |
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} |
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return |
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} |
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func (s *Service) load() { |
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tmp, err := s.dao.All(context.TODO()) |
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if err != nil { |
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log.Error("param s.dao.All() error(%v)", err) |
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return |
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} |
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s.cache = tmp |
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log.Info("param cacheproc success") |
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} |
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// cacheproc load cache data |
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func (s *Service) loadproc() { |
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for { |
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time.Sleep(s.tick) |
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s.load() |
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} |
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} |
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func (s *Service) hash(v map[string]string) string { |
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bs, err := json.Marshal(v) |
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if err != nil { |
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log.Error("json.Marshal error(%v)", err) |
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return _initVersion |
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} |
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return strconv.FormatUint(farm.Hash64(bs), 10) |
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} |
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// key get banner cache key. |
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func (s *Service) key(plat int8, build int) string { |
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return fmt.Sprintf("%d_%d", plat, build) |
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} |
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// Close dao |
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func (s *Service) Close() { |
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s.dao.Close() |
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}
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