/
yaml.go
77 lines (58 loc) · 1.6 KB
/
yaml.go
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package config
import (
"regexp"
"github.com/mike-douglas/chaosproxy/middleware"
"github.com/mike-douglas/chaosproxy/structs"
"github.com/pkg/errors"
yaml "gopkg.in/yaml.v2"
)
type yamlRouteConfig struct {
Pattern string `yaml:"pattern"`
Middleware []yamlMiddlewareConfig `yaml:"actions"`
}
func (r yamlRouteConfig) RouteConfig() (*structs.RouteConfig, error) {
reg, err := regexp.Compile(r.Pattern)
if err != nil {
return nil, errors.Wrap(err, "Could not compile pattern regex")
}
var mw = make([]structs.MiddlewareConfig, len(r.Middleware))
for i, m := range r.Middleware {
mw[i] = *m.MiddlewareConfig()
}
var rc = structs.RouteConfig{
CompiledPattern: reg,
Middleware: mw,
Handler: middleware.CreateHandler(mw),
}
return &rc, nil
}
type yamlMiddlewareConfig struct {
Action string `yaml:"name"`
Params map[string]string `yaml:"params"`
}
func (m yamlMiddlewareConfig) MiddlewareConfig() *structs.MiddlewareConfig {
return &structs.MiddlewareConfig{
Action: m.Action,
Params: m.Params,
}
}
// BuildFromYaml ...
func BuildFromYaml(source []byte, c *structs.Config) error {
var yamlRoutes = []yamlRouteConfig{}
var routes = []structs.RouteConfig{}
var route *structs.RouteConfig
var err error
err = yaml.Unmarshal(source, &yamlRoutes)
if err != nil {
return errors.Wrap(err, "Could not parse yaml file")
}
for i, yr := range yamlRoutes {
route, err = yr.RouteConfig()
if err != nil {
return errors.Wrapf(err, "Could not build config for route %d", i)
}
routes = append(routes, *route)
}
c.Routes = routes
return nil
}