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policies_index_internal.go
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/
policies_index_internal.go
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package handlers
import (
"net/http"
"net/url"
"policy-server/api"
"policy-server/store"
"strings"
"code.cloudfoundry.org/lager"
)
//go:generate counterfeiter -o fakes/data_store.go --fake-name DataStore . dataStore
type dataStore interface {
All() ([]store.Policy, error)
Create([]store.Policy) error
Delete([]store.Policy) error
Tags() ([]store.Tag, error)
ByGuids([]string, []string) ([]store.Policy, error)
CheckDatabase() error
}
type PoliciesIndexInternal struct {
Logger lager.Logger
Store dataStore
Mapper api.PolicyMapper
ErrorResponse errorResponse
}
func NewPoliciesIndexInternal(logger lager.Logger, store dataStore,
mapper api.PolicyMapper, errorResponse errorResponse) *PoliciesIndexInternal {
return &PoliciesIndexInternal{
Logger: logger,
Store: store,
Mapper: mapper,
ErrorResponse: errorResponse,
}
}
func (h *PoliciesIndexInternal) ServeHTTP(w http.ResponseWriter, req *http.Request) {
logger := getLogger(req)
logger = logger.Session("index-policies-internal")
queryValues := req.URL.Query()
ids := parseIds(queryValues)
var policies []store.Policy
var err error
if len(ids) == 0 {
policies, err = h.Store.All()
} else {
policies, err = h.Store.ByGuids(ids, ids)
}
if err != nil {
h.ErrorResponse.InternalServerError(logger, w, err, "database read failed")
return
}
bytes, err := h.Mapper.AsBytes(policies)
if err != nil {
h.ErrorResponse.InternalServerError(logger, w, err, "map policy as bytes failed")
return
}
w.WriteHeader(http.StatusOK)
w.Write(bytes)
}
func parseIds(queryValues url.Values) []string {
var ids []string
idList, ok := queryValues["id"]
if ok {
ids = strings.Split(idList[0], ",")
}
return ids
}