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load.go
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load.go
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package openmock
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/fatih/structs"
"github.com/gomodule/redigo/redis"
"github.com/sirupsen/logrus"
yaml "gopkg.in/yaml.v2"
)
const (
redisTemplatesStore = "redis_templates_store"
)
// Load returns a map of Mocks
func (om *OpenMock) Load() error {
f, err := loadYAML(om.TemplatesDir)
if err != nil {
return err
}
r, err := loadRedis(om.redis)
if err != nil {
return err
}
b := bytes.Join([][]byte{f, r}, []byte("\n"))
mocks := []*Mock{}
if err := yaml.UnmarshalStrict(b, &mocks); err != nil {
return err
}
om.populateMockRepo(mocks)
return nil
}
func (om *OpenMock) populateMockRepo(mocks []*Mock) {
r := &MockRepo{
HTTPMocks: HTTPMocks{},
KafkaMocks: KafkaMocks{},
AMQPMocks: AMQPMocks{},
}
for i := range mocks {
m := mocks[i]
m.loadFile(om.TemplatesDir)
if !structs.IsZero(m.Expect.HTTP) {
_, ok := r.HTTPMocks[m.Expect.HTTP]
if !ok {
r.HTTPMocks[m.Expect.HTTP] = []*Mock{m}
} else {
r.HTTPMocks[m.Expect.HTTP] = append(r.HTTPMocks[m.Expect.HTTP], m)
}
}
if !structs.IsZero(m.Expect.Kafka) {
_, ok := r.KafkaMocks[m.Expect.Kafka]
if !ok {
r.KafkaMocks[m.Expect.Kafka] = []*Mock{m}
} else {
r.KafkaMocks[m.Expect.Kafka] = append(r.KafkaMocks[m.Expect.Kafka], m)
}
}
if !structs.IsZero(m.Expect.AMQP) {
_, ok := r.AMQPMocks[m.Expect.AMQP]
if !ok {
r.AMQPMocks[m.Expect.AMQP] = []*Mock{m}
} else {
r.AMQPMocks[m.Expect.AMQP] = append(r.AMQPMocks[m.Expect.AMQP], m)
}
}
}
om.repo = r
}
func loadRedis(doer RedisDoer) ([]byte, error) {
if doer == nil {
return nil, nil
}
logrus.Infof("Start to load templates from redis")
v, err := doer.Do("HGETALL", redisTemplatesStore)
m, err := redis.StringMap(v, err)
ss := []string{}
for _, s := range m {
ss = append(ss, s)
}
return []byte(strings.Join(ss, "\n")), nil
}
func loadYAML(searchDir string) ([]byte, error) {
logrus.Infof("Start to load templates from: %s", searchDir)
w := &bytes.Buffer{}
err := filepath.Walk(searchDir, func(path string, f os.FileInfo, err error) error {
if f != nil && (strings.HasSuffix(f.Name(), ".yaml") || strings.HasSuffix(f.Name(), ".yml")) {
content, err := ioutil.ReadFile(path)
if err != nil {
return err
}
w.Write(content)
}
return nil
})
if err != nil {
return nil, err
}
logrus.Infof("Done with loading templates from: %s", searchDir)
return []byte(w.String()), nil
}
func (m *Mock) loadFile(baseDir string) {
for i := range m.Actions {
a := &m.Actions[i]
if !structs.IsZero(a.ActionPublishAMQP) {
amqp := &a.ActionPublishAMQP
if amqp.PayloadFromFile != "" && amqp.Payload == "" {
amqp.Payload = readFile(m.Key, baseDir, amqp.PayloadFromFile)
}
}
if !structs.IsZero(a.ActionPublishKafka) {
kafka := &a.ActionPublishKafka
if kafka.PayloadFromFile != "" && kafka.Payload == "" {
kafka.Payload = readFile(m.Key, baseDir, kafka.PayloadFromFile)
}
}
if !structs.IsZero(a.ActionReplyHTTP) {
h := &a.ActionReplyHTTP
if h.BodyFromFile != "" && h.Body == "" {
h.Body = readFile(m.Key, baseDir, h.BodyFromFile)
}
}
}
logrus.Infof("template with key:%s loaded.", m.Key)
}
func readFile(templateKey string, baseDir string, filePath string) string {
path := fmt.Sprintf("%s/%s", baseDir, filePath)
dat, err := ioutil.ReadFile(path)
if err != nil {
logrus.WithFields(logrus.Fields{
"template_key": templateKey,
"err": err,
"path": path,
}).Errorf("failed to load file")
return ""
}
return string(dat)
}