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Beego/logs/alils/log_project.go

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2016-12-27 01:58:42 +00:00
/*
Package sls implements the SDK(v0.5.0) of Simple Log Service(abbr. SLS).
For more description about SLS, please read this article:
http://gitlab.alibaba-inc.com/sls/doc.
*/
package alils
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/http/httputil"
)
// Error message in SLS HTTP response.
type errorMessage struct {
Code string `json:"errorCode"`
Message string `json:"errorMessage"`
}
type LogProject struct {
Name string // Project name
Endpoint string // IP or hostname of SLS endpoint
AccessKeyId string
AccessKeySecret string
}
// NewLogProject creates a new SLS project.
func NewLogProject(name, endpoint, accessKeyId, accessKeySecret string) (p *LogProject, err error) {
p = &LogProject{
Name: name,
Endpoint: endpoint,
AccessKeyId: accessKeyId,
AccessKeySecret: accessKeySecret,
}
return p, nil
}
// ListLogStore returns all logstore names of project p.
func (p *LogProject) ListLogStore() (storeNames []string, err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
uri := fmt.Sprintf("/logstores")
r, err := request(p, "GET", uri, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to list logstore")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
type Body struct {
Count int
LogStores []string
}
body := &Body{}
err = json.Unmarshal(buf, body)
if err != nil {
return
}
storeNames = body.LogStores
return
}
// GetLogStore returns logstore according by logstore name.
func (p *LogProject) GetLogStore(name string) (s *LogStore, err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
r, err := request(p, "GET", "/logstores/"+name, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to get logstore")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
s = &LogStore{}
err = json.Unmarshal(buf, s)
if err != nil {
return
}
s.project = p
return
}
// CreateLogStore creates a new logstore in SLS,
// where name is logstore name,
// and ttl is time-to-live(in day) of logs,
// and shardCnt is the number of shards.
func (p *LogProject) CreateLogStore(name string, ttl, shardCnt int) (err error) {
type Body struct {
Name string `json:"logstoreName"`
TTL int `json:"ttl"`
ShardCount int `json:"shardCount"`
}
store := &Body{
Name: name,
TTL: ttl,
ShardCount: shardCnt,
}
body, err := json.Marshal(store)
if err != nil {
return
}
h := map[string]string{
"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
"Content-Type": "application/json",
"Accept-Encoding": "deflate", // TODO: support lz4
}
r, err := request(p, "POST", "/logstores", h, body)
if err != nil {
return
}
body, err = ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to create logstore")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// DeleteLogStore deletes a logstore according by logstore name.
func (p *LogProject) DeleteLogStore(name string) (err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
r, err := request(p, "DELETE", "/logstores/"+name, h, nil)
if err != nil {
return
}
body, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to delete logstore")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// UpdateLogStore updates a logstore according by logstore name,
// obviously we can't modify the logstore name itself.
func (p *LogProject) UpdateLogStore(name string, ttl, shardCnt int) (err error) {
type Body struct {
Name string `json:"logstoreName"`
TTL int `json:"ttl"`
ShardCount int `json:"shardCount"`
}
store := &Body{
Name: name,
TTL: ttl,
ShardCount: shardCnt,
}
body, err := json.Marshal(store)
if err != nil {
return
}
h := map[string]string{
"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
"Content-Type": "application/json",
"Accept-Encoding": "deflate", // TODO: support lz4
}
r, err := request(p, "PUT", "/logstores", h, body)
if err != nil {
return
}
body, err = ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to update logstore")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// ListMachineGroup returns machine group name list and the total number of machine groups.
// The offset starts from 0 and the size is the max number of machine groups could be returned.
func (p *LogProject) ListMachineGroup(offset, size int) (m []string, total int, err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
if size <= 0 {
size = 500
}
uri := fmt.Sprintf("/machinegroups?offset=%v&size=%v", offset, size)
r, err := request(p, "GET", uri, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to list machine group")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
type Body struct {
MachineGroups []string
Count int
Total int
}
body := &Body{}
err = json.Unmarshal(buf, body)
if err != nil {
return
}
m = body.MachineGroups
total = body.Total
return
}
// GetMachineGroup retruns machine group according by machine group name.
func (p *LogProject) GetMachineGroup(name string) (m *MachineGroup, err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
r, err := request(p, "GET", "/machinegroups/"+name, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to get machine group:%v", name)
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
m = &MachineGroup{}
err = json.Unmarshal(buf, m)
if err != nil {
return
}
m.project = p
return
}
// CreateMachineGroup creates a new machine group in SLS.
func (p *LogProject) CreateMachineGroup(m *MachineGroup) (err error) {
body, err := json.Marshal(m)
if err != nil {
return
}
h := map[string]string{
"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
"Content-Type": "application/json",
"Accept-Encoding": "deflate", // TODO: support lz4
}
r, err := request(p, "POST", "/machinegroups", h, body)
if err != nil {
return
}
body, err = ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to create machine group")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// UpdateMachineGroup updates a machine group.
func (p *LogProject) UpdateMachineGroup(m *MachineGroup) (err error) {
body, err := json.Marshal(m)
if err != nil {
return
}
h := map[string]string{
"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
"Content-Type": "application/json",
"Accept-Encoding": "deflate", // TODO: support lz4
}
r, err := request(p, "PUT", "/machinegroups/"+m.Name, h, body)
if err != nil {
return
}
body, err = ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to update machine group")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// DeleteMachineGroup deletes machine group according machine group name.
func (p *LogProject) DeleteMachineGroup(name string) (err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
r, err := request(p, "DELETE", "/machinegroups/"+name, h, nil)
if err != nil {
return
}
body, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to delete machine group")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// ListConfig returns config names list and the total number of configs.
// The offset starts from 0 and the size is the max number of configs could be returned.
func (p *LogProject) ListConfig(offset, size int) (cfgNames []string, total int, err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
if size <= 0 {
size = 100
}
uri := fmt.Sprintf("/configs?offset=%v&size=%v", offset, size)
r, err := request(p, "GET", uri, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to delete machine group")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
type Body struct {
Total int
Configs []string
}
body := &Body{}
err = json.Unmarshal(buf, body)
if err != nil {
return
}
cfgNames = body.Configs
total = body.Total
return
}
// GetConfig returns config according by config name.
func (p *LogProject) GetConfig(name string) (c *LogConfig, err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
r, err := request(p, "GET", "/configs/"+name, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to delete config")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
c = &LogConfig{}
err = json.Unmarshal(buf, c)
if err != nil {
return
}
c.project = p
return
}
// UpdateConfig updates a config.
func (p *LogProject) UpdateConfig(c *LogConfig) (err error) {
body, err := json.Marshal(c)
if err != nil {
return
}
h := map[string]string{
"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
"Content-Type": "application/json",
"Accept-Encoding": "deflate", // TODO: support lz4
}
r, err := request(p, "PUT", "/configs/"+c.Name, h, body)
if err != nil {
return
}
body, err = ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to update config")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// CreateConfig creates a new config in SLS.
func (p *LogProject) CreateConfig(c *LogConfig) (err error) {
body, err := json.Marshal(c)
if err != nil {
return
}
h := map[string]string{
"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
"Content-Type": "application/json",
"Accept-Encoding": "deflate", // TODO: support lz4
}
r, err := request(p, "POST", "/configs", h, body)
if err != nil {
return
}
body, err = ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to update config")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// DeleteConfig deletes a config according by config name.
func (p *LogProject) DeleteConfig(name string) (err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
r, err := request(p, "DELETE", "/configs/"+name, h, nil)
if err != nil {
return
}
body, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(body, errMsg)
if err != nil {
err = fmt.Errorf("failed to delete config")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// GetAppliedMachineGroups returns applied machine group names list according config name.
func (p *LogProject) GetAppliedMachineGroups(confName string) (groupNames []string, err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
uri := fmt.Sprintf("/configs/%v/machinegroups", confName)
r, err := request(p, "GET", uri, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to get applied machine groups")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
type Body struct {
Count int
Machinegroups []string
}
body := &Body{}
err = json.Unmarshal(buf, body)
if err != nil {
return
}
groupNames = body.Machinegroups
return
}
// GetAppliedConfigs returns applied config names list according machine group name groupName.
func (p *LogProject) GetAppliedConfigs(groupName string) (confNames []string, err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
uri := fmt.Sprintf("/machinegroups/%v/configs", groupName)
r, err := request(p, "GET", uri, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to applied configs")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
type Cfg struct {
Count int `json:"count"`
Configs []string `json:"configs"`
}
body := &Cfg{}
err = json.Unmarshal(buf, body)
if err != nil {
return
}
confNames = body.Configs
return
}
// ApplyConfigToMachineGroup applies config to machine group.
func (p *LogProject) ApplyConfigToMachineGroup(confName, groupName string) (err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
uri := fmt.Sprintf("/machinegroups/%v/configs/%v", groupName, confName)
r, err := request(p, "PUT", uri, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to apply config to machine group")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}
// RemoveConfigFromMachineGroup removes config from machine group.
func (p *LogProject) RemoveConfigFromMachineGroup(confName, groupName string) (err error) {
h := map[string]string{
"x-sls-bodyrawsize": "0",
}
uri := fmt.Sprintf("/machinegroups/%v/configs/%v", groupName, confName)
r, err := request(p, "DELETE", uri, h, nil)
if err != nil {
return
}
buf, err := ioutil.ReadAll(r.Body)
if err != nil {
return
}
if r.StatusCode != http.StatusOK {
errMsg := &errorMessage{}
err = json.Unmarshal(buf, errMsg)
if err != nil {
err = fmt.Errorf("failed to remove config from machine group")
dump, _ := httputil.DumpResponse(r, true)
fmt.Printf("%s\n", dump)
return
}
err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
return
}
return
}