/
client.go
116 lines (102 loc) · 2.6 KB
/
client.go
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package metrics
import (
"context"
"encoding/json"
"errors"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/cloudwatch"
"github.com/kubemq-hub/builder/connector/common"
"github.com/kubemq-io/kubemq-targets/config"
"github.com/kubemq-io/kubemq-targets/pkg/logger"
"github.com/kubemq-io/kubemq-targets/types"
)
type Client struct {
log *logger.Logger
opts options
client *cloudwatch.CloudWatch
}
func New() *Client {
return &Client{}
}
func (c *Client) Connector() *common.Connector {
return Connector()
}
func (c *Client) Init(ctx context.Context, cfg config.Spec, log *logger.Logger) error {
c.log = log
if c.log == nil {
c.log = logger.NewLogger(cfg.Kind)
}
var err error
c.opts, err = parseOptions(cfg)
if err != nil {
return err
}
sess, err := session.NewSession(&aws.Config{
Region: aws.String(c.opts.region),
Credentials: credentials.NewStaticCredentials(c.opts.awsKey, c.opts.awsSecretKey, c.opts.token),
})
if err != nil {
return err
}
svc := cloudwatch.New(sess)
c.client = svc
return nil
}
func (c *Client) Do(ctx context.Context, req *types.Request) (*types.Response, error) {
meta, err := parseMetadata(req.Metadata)
if err != nil {
return nil, err
}
switch meta.method {
case "put_metrics":
return c.putMetrics(ctx, meta, req.Data)
case "list_metrics":
return c.listMetrics(ctx, meta)
default:
return nil, errors.New("invalid method type")
}
}
func (c *Client) putMetrics(ctx context.Context, meta metadata, data []byte) (*types.Response, error) {
var metrics []*cloudwatch.MetricDatum
err := json.Unmarshal(data, &metrics)
if err != nil {
return nil, err
}
_, err = c.client.PutMetricDataWithContext(ctx, &cloudwatch.PutMetricDataInput{
Namespace: aws.String(meta.namespace),
MetricData: metrics,
})
if err != nil {
return nil, err
}
return types.NewResponse().
SetMetadataKeyValue("result", "ok"),
nil
}
func (c *Client) listMetrics(ctx context.Context, meta metadata) (*types.Response, error) {
var resp *cloudwatch.ListMetricsOutput
var err error
if meta.namespace != "" {
resp, err = c.client.ListMetricsWithContext(ctx, &cloudwatch.ListMetricsInput{
Namespace: aws.String(meta.namespace),
})
} else {
resp, err = c.client.ListMetricsWithContext(ctx, &cloudwatch.ListMetricsInput{})
}
if err != nil {
return nil, err
}
b, err := json.Marshal(resp)
if err != nil {
return nil, err
}
return types.NewResponse().
SetMetadataKeyValue("result", "ok").
SetData(b),
nil
}
func (c *Client) Stop() error {
return nil
}