github.com/erda-project/erda-infra@v1.0.9/providers/mysql/examples/main.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 main
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  	"os"
    21  
    22  	"github.com/jinzhu/gorm"
    23  
    24  	"github.com/erda-project/erda-infra/base/servicehub"
    25  	"github.com/erda-project/erda-infra/providers/mysql"
    26  )
    27  
    28  type provider struct {
    29  	DB    *gorm.DB        // autowired
    30  	MySQL mysql.Interface // autowired
    31  }
    32  
    33  func (p *provider) Init(ctx servicehub.Context) error {
    34  	fmt.Println(p.DB)
    35  	fmt.Println(p.MySQL)
    36  	// do something
    37  	return nil
    38  }
    39  
    40  func (p *provider) Run(ctx context.Context) error {
    41  	if err := p.DB.Exec("SELECT 1").Error; err != nil {
    42  		return err
    43  	}
    44  	for {
    45  		select {
    46  		case <-ctx.Done():
    47  			return nil
    48  		}
    49  	}
    50  }
    51  
    52  func init() {
    53  	servicehub.Register("example", &servicehub.Spec{
    54  		Services:     []string{"example"},
    55  		Dependencies: []string{"mysql"},
    56  		Description:  "example",
    57  		Creator: func() servicehub.Provider {
    58  			return &provider{}
    59  		},
    60  	})
    61  }
    62  
    63  func main() {
    64  	hub := servicehub.New()
    65  	hub.Run("examples", "", os.Args...)
    66  }