github.com/erda-project/erda-infra@v1.0.9/providers/zookeeper/zookeeper.go (about)

     1  // Copyright (c) 2021 Terminus, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package zookeeper
    16  
    17  import (
    18  	"reflect"
    19  	"strings"
    20  	"time"
    21  
    22  	"github.com/erda-project/erda-infra/base/servicehub"
    23  	"github.com/go-zookeeper/zk"
    24  )
    25  
    26  // Interface .
    27  type Interface interface {
    28  	Connect(options ...func(*zk.Conn)) (*zk.Conn, <-chan zk.Event, error)
    29  	SessionTimeout() time.Duration
    30  }
    31  
    32  type config struct {
    33  	Addrs          string        `file:"addrs" env:"ZOOKEEPER_ADDR"`
    34  	SessionTimeout time.Duration `file:"session_timeout" default:"3s"`
    35  }
    36  
    37  type provider struct {
    38  	Cfg *config
    39  }
    40  
    41  func (p *provider) Connect(options ...func(*zk.Conn)) (*zk.Conn, <-chan zk.Event, error) {
    42  	return zk.Connect(strings.Split(p.Cfg.Addrs, ","), p.Cfg.SessionTimeout)
    43  }
    44  
    45  func (p *provider) SessionTimeout() time.Duration { return p.Cfg.SessionTimeout }
    46  
    47  func init() {
    48  	servicehub.Register("zookeeper", &servicehub.Spec{
    49  		Services:    []string{"zookeeper"},
    50  		Types:       []reflect.Type{reflect.TypeOf((*Interface)(nil)).Elem()},
    51  		Description: "zookeeper",
    52  		ConfigFunc:  func() interface{} { return &config{} },
    53  		Creator: func() servicehub.Provider {
    54  			return &provider{}
    55  		},
    56  	})
    57  }