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Merge pull request #510 from Gui-Yue/bpf_visual
Save data to sqlite3&Start service with one command.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,7 @@ | ||
| Prometheus_image = prom/prometheus | ||
| all: | ||
| go mod tidy | ||
| go build -o data-visual ./main.go | ||
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| start_service: | ||
| ./runimages.sh |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| // Copyright 2023 The LMP Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://github.com/linuxkerneltravel/lmp/blob/develop/LICENSE | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| // author: Gui-Yue | ||
| // | ||
| // 数据持久化的方式：通过将数据写入数据库实现数据持久化。 | ||
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| package dao | ||
|
|
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| import ( | ||
| "fmt" | ||
| "gorm.io/driver/sqlite" | ||
| "gorm.io/gorm" | ||
| "log" | ||
| "os" | ||
| "strconv" | ||
| ) | ||
|
|
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| type Sqlobj struct { | ||
| Tablename string | ||
| db *gorm.DB | ||
| Data map[string]interface{} | ||
| } | ||
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| type Basicdata struct { | ||
| ID int `gorm:"primaryKey;unique;column:ID"` | ||
| } | ||
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| // Connectsql 连接数据库 | ||
| func (s *Sqlobj) Connectsql() { | ||
| currentdir, _ := os.Getwd() | ||
| path := currentdir + "/dao/data.db" | ||
| db, _ := gorm.Open(sqlite.Open(path), &gorm.Config{}) | ||
| log.Println("connected.") | ||
| s.db = db | ||
| } | ||
|
|
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| func (s *Sqlobj) Tableexist(name string) bool { | ||
| return s.db.Migrator().HasTable(name) | ||
| } | ||
|
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| // CreateTable 建表 | ||
| func (s *Sqlobj) OperateTable(name string) { | ||
| if !s.Tableexist(name) { | ||
| deletetable := fmt.Sprintf("drop table if exists %s;", s.Tablename) | ||
| if err := s.db.Exec(deletetable).Error; err != nil { | ||
| log.Fatalf("drop exist table failed.") | ||
| } | ||
| if err := s.db.Table(s.Tablename).AutoMigrate(&Basicdata{}); err != nil { | ||
| log.Fatalf("create table failed.") | ||
| } | ||
| s.AppendTable() | ||
| s.CreateRow() | ||
| } else { | ||
| s.CreateRow() | ||
| } | ||
| } | ||
|
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| // AppendTable 扩展表 | ||
| func (s *Sqlobj) AppendTable() { | ||
| for key, value := range s.Data { | ||
| datatype := "text" | ||
| if strvalue, is_string := value.(string); is_string { | ||
| // shift numerical data to float64 | ||
| if _, err := strconv.ParseFloat(strvalue, 64); err == nil { | ||
| datatype = "real" | ||
| } | ||
| } | ||
| addcolumn := fmt.Sprintf("alter table %s add column \"%s\" %s", s.Tablename, key, datatype) | ||
| s.db.Exec(addcolumn) | ||
| } | ||
| } | ||
|
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| // CreateRow 写入数据 | ||
| func (s *Sqlobj) CreateRow() { | ||
| s.db.Table(s.Tablename).Create(s.Data) | ||
| } |
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