forked from vmware-archive/atc
/
list.go
149 lines (121 loc) · 3.57 KB
/
list.go
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package containerserver
import (
"encoding/json"
"fmt"
"net/http"
"strconv"
"code.cloudfoundry.org/lager"
"github.com/concourse/atc"
"github.com/concourse/atc/api/present"
"github.com/concourse/atc/creds"
"github.com/concourse/atc/db"
)
func (s *Server) ListContainers(team db.Team) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
params := r.URL.RawQuery
hLog := s.logger.Session("list-containers", lager.Data{
"params": params,
})
containerLocator, err := createContainerLocatorFromRequest(team, r, s.variablesFactory)
if err != nil {
hLog.Error("failed-to-parse-request", err)
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.Header().Set("Content-Type", "application/json")
hLog.Debug("listing-containers")
containers, err := containerLocator.Locate(hLog)
if err != nil {
hLog.Error("failed-to-find-containers", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
hLog.Debug("listed", lager.Data{"container-count": len(containers)})
presentedContainers := make([]atc.Container, len(containers))
for i := 0; i < len(containers); i++ {
container := containers[i]
presentedContainers[i] = present.Container(container)
}
err = json.NewEncoder(w).Encode(presentedContainers)
if err != nil {
hLog.Error("failed-to-encode-containers", err)
w.WriteHeader(http.StatusInternalServerError)
}
})
}
type containerLocator interface {
Locate(logger lager.Logger) ([]db.Container, error)
}
func createContainerLocatorFromRequest(team db.Team, r *http.Request, variablesFactory creds.VariablesFactory) (containerLocator, error) {
query := r.URL.Query()
if query.Get("type") == "check" {
return &checkContainerLocator{
team: team,
pipelineName: query.Get("pipeline_name"),
resourceName: query.Get("resource_name"),
variablesFactory: variablesFactory,
}, nil
}
var err error
var containerType db.ContainerType
if query.Get("type") != "" {
containerType, err = db.ContainerTypeFromString(query.Get("type"))
if err != nil {
return nil, err
}
}
pipelineID, err := parseIntParam(r, "pipeline_id")
if err != nil {
return nil, err
}
jobID, err := parseIntParam(r, "job_id")
if err != nil {
return nil, err
}
buildID, err := parseIntParam(r, "build_id")
if err != nil {
return nil, err
}
return &stepContainerLocator{
team: team,
metadata: db.ContainerMetadata{
Type: containerType,
StepName: query.Get("step_name"),
Attempt: query.Get("attempt"),
PipelineID: pipelineID,
JobID: jobID,
BuildID: buildID,
PipelineName: query.Get("pipeline_name"),
JobName: query.Get("job_name"),
BuildName: query.Get("build_name"),
},
}, nil
}
type checkContainerLocator struct {
team db.Team
pipelineName string
resourceName string
variablesFactory creds.VariablesFactory
}
func (l *checkContainerLocator) Locate(logger lager.Logger) ([]db.Container, error) {
return l.team.FindCheckContainers(logger, l.pipelineName, l.resourceName, l.variablesFactory)
}
type stepContainerLocator struct {
team db.Team
metadata db.ContainerMetadata
}
func (l *stepContainerLocator) Locate(logger lager.Logger) ([]db.Container, error) {
return l.team.FindContainersByMetadata(l.metadata)
}
func parseIntParam(r *http.Request, name string) (int, error) {
var val int
param := r.URL.Query().Get(name)
if len(param) != 0 {
var err error
val, err = strconv.Atoi(param)
if err != nil {
return 0, fmt.Errorf("non-numeric '%s' param (%s): %s", name, param, err)
}
}
return val, nil
}