func (metric *Metric) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "metrics", ctp.Base64Id(context.Params[1]), metric) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
metric.BuildLinks(context)
return nil
}
func (asset *Asset) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "assets", ctp.Base64Id(context.Params[1]), asset) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
asset.BuildLinks(context)
return nil
}
func (attribute *Attribute) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "attributes", ctp.Base64Id(context.Params[1]), attribute) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
attribute.BuildLinks(context)
return nil
}
func (res *TaggedResource) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, context.Params[0], ctp.Base64Id(context.Params[1]), res) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
res.BuildLinks(context)
return nil
}
func (log *LogEntry) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "logs", ctp.Base64Id(context.Params[1]), log) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
log.BuildLinks(context)
return nil
}
func (serviceview *ServiceView) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "serviceViews", ctp.Base64Id(context.Params[1]), serviceview) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
serviceview.BuildLinks(context)
return nil
}
func (account *Account) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "accounts", ctp.Base64Id(context.Params[1]), account) {
return ctp.NewHttpErrorf(http.StatusNotFound, "Account %s not found", context.Params[1])
}
account.BuildLinks(context)
return nil
}
func (access *Access) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "access", ctp.Base64Id(context.Params[1]), access) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
access.BuildLinks(context)
return nil
}
func (trigger *Trigger) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "triggers", ctp.Base64Id(context.Params[1]), trigger) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
trigger.Measurement = ctp.ExpandLink(context.CtpBase, trigger.Measurement)
trigger.BuildLinks(context)
return nil
}
func (measurement *Measurement) Load(context *ctp.ApiContext) *ctp.HttpError {
if !ctp.LoadResource(context, "measurements", ctp.Base64Id(context.Params[1]), measurement) {
return ctp.NewHttpError(http.StatusNotFound, "Not Found")
}
measurement.Metric = ctp.ExpandLink(context.CtpBase, measurement.Metric)
measurement.BuildLinks(context)
return nil
}
func measurementCheckResult(context *ctp.ApiContext, item *Measurement) *ctp.HttpError {
var metric Metric
if item.Metric == "" {
return ctp.NewBadRequestError("Missing metric attribute in measurement.")
}
if item.Result == nil {
return ctp.NewBadRequestError("Missing result attribute in measurement.")
}
metricParams, ok := ctp.ParseLink(context.CtpBase, "@/metrics/$", item.Metric)
if !ok {
return ctp.NewBadRequestError("Metric URL is incorrect in measurement")
}
if !ctp.LoadResource(context, "metrics", ctp.Base64Id(metricParams[0]), &metric) {
return ctp.NewBadRequestErrorf("Metric %s does not exist", ctp.ExpandLink(context.CtpBase, item.Metric))
}
for _, row := range item.Result.Value {
if len(row) != len(metric.ResultFormat) {
return ctp.NewBadRequestErrorf("Metric expects %d columns, but result value provides %d", len(metric.ResultFormat), len(row))
}
for name, cell := range row {
metricDetailFound := false
for _, metricDetail := range metric.ResultFormat {
if metricDetail.Name == name {
metricDetailFound = true
kind := reflect.ValueOf(cell).Kind()
switch metricDetail.Type {
case "number":
if kind != reflect.Float64 {
return ctp.NewBadRequestError("Metric expects a number, but result is of different type")
}
case "boolean":
if kind != reflect.Bool {
return ctp.NewBadRequestError("Metric expects a boolean, but result is of different type")
}
case "string":
if kind != reflect.String {
return ctp.NewBadRequestError("Metric expects a string, but result is of different type")
}
default:
return ctp.NewBadRequestError("Metric type information is incorrect")
}
break // from for
}
}
if !metricDetailFound {
return ctp.NewBadRequestErrorf("Metric does not describe '%s', which appears in result", name)
}
}
}
return nil
}
func measurementCheckMetric(context *ctp.ApiContext, item *Measurement) *ctp.HttpError {
var metric Metric
if item.Metric == "" {
return ctp.NewBadRequestError("Missing metric attribute in measurement.")
}
metricParams, ok := ctp.ParseLink(context.CtpBase, "@/metrics/$", item.Metric)
if !ok {
return ctp.NewBadRequestError("Metric URL is incorrect in measurement")
}
if !ctp.LoadResource(context, "metrics", ctp.Base64Id(metricParams[0]), &metric) {
return ctp.NewBadRequestErrorf("Metric %s does not exist", ctp.ExpandLink(context.CtpBase, item.Metric))
}
return nil
}
func triggerCheckCondition(context *ctp.ApiContext, trigger *Trigger, measurement *Measurement) (bool, error) {
if measurement == nil {
measurementParams, ok := ctp.ParseLink(context.CtpBase, "@/measurements/$", trigger.Measurement)
if !ok {
return false, fmt.Errorf("Measurement URL is incorrect")
}
measurement = new(Measurement)
if !ctp.LoadResource(context, "measurements", ctp.Base64Id(measurementParams[0]), measurement) {
return false, fmt.Errorf("Measurement %s does not exist", ctp.ExpandLink(context.CtpBase, trigger.Measurement))
}
}
machine, err := jsmm.Compile(trigger.Condition)
if err != nil {
return false, ctp.NewBadRequestErrorf("Error in condition specification - %s", err.Error())
}
if context.DebugVM {
machine.DebugMode(true)
}
if measurement.State != "activated" {
return false, nil
}
if measurement.Result == nil {
ctp.Log(context, ctp.ERROR, "In /measurements/%s, the state is activated but the value is null.", measurement.Id)
return false, nil
}
if err := importMeasurementResultInJSMM(machine, measurement.Result); err != nil {
return false, err
}
v, exception := machine.Execute()
if exception != nil {
return false, fmt.Errorf("Failed to evaluate condition: %s", exception.Error())
}
return v.ToBoolean(), nil
}
// HandleGETBaseURI handles a request to the baseURI.
// It proceeds differently from other resources, which user the 'handler' paradigm.
func HandleGETBaseURI(w http.ResponseWriter, r *http.Request, context *ctp.ApiContext) {
if !context.AuthenticateClient(w, r) {
ctp.Log(context, ctp.WARNING, "Missing access tags")
return
}
if !context.VerifyAccessTags(w, ctp.UserRoleTag) {
ctp.Log(context, ctp.WARNING, "Mismatched access tags for API signature")
return
}
base := new(BaseURI)
if !ctp.LoadResource(context, "baseuri", ctp.Base64Id("0"), base) {
base.Version = "0"
base.Annotation = "Unconfigured ctpd prototype server"
}
base.BuildLinks(context)
ctp.RenderJsonResponse(w, context, 200, base)
}
func HandleGETCollection(w http.ResponseWriter, r *http.Request, context *ctp.ApiContext) {
var item ctp.NamedResource
var parent ctp.Resource
var query *mgo.Query
var collectionType string
var skip, page, items int
var err error
collection := new(Collection)
selector := make(bson.M)
if name, ok := r.URL.Query()["name"]; ok {
selector["name"] = name[0]
}
page_query := r.URL.Query().Get("page")
items_query := r.URL.Query().Get("items")
if page_query != "" || items_query != "" {
if page_query == "" || items_query == "" {
ctp.RenderErrorResponse(w, context, ctp.NewHttpError(http.StatusBadRequest, "Must specify both 'page' and 'items' in query string."))
return
}
if page, err = strconv.Atoi(page_query); err != nil || page < 0 {
ctp.RenderErrorResponse(w, context, ctp.NewHttpError(http.StatusBadRequest, "page must be a positive number."))
return
}
if items, err = strconv.Atoi(items_query); err != nil || items <= 0 {
ctp.RenderErrorResponse(w, context, ctp.NewHttpError(http.StatusBadRequest, "items must be a non-zero positive number."))
}
skip = items * page
}
if !context.AuthenticateClient(w, r) {
return
}
var mgoCollection *mgo.Collection
if len(context.Params) == 1 {
collectionType = context.Params[0]
mgoCollection = context.Session.DB("ctp").C(collectionType)
switch collectionType {
case "serviceViews":
if !context.VerifyAccessTags(w, ctp.UserRoleTag) {
return
}
if !ctp.MatchTags(context.AccountTags, ctp.AdminRoleTag) {
selector["accessTags"] = bson.M{"$in": context.AccountTags.WithPrefix("account:")}
}
case "metrics":
if !context.VerifyAccessTags(w, ctp.UserRoleTag) {
return
}
default:
if !context.VerifyAccessTags(w, ctp.AdminRoleTag) {
return
}
}
} else {
if !context.VerifyAccessTags(w, ctp.UserRoleTag) {
return
}
if !ctp.LoadResource(context, context.Params[0], ctp.Base64Id(context.Params[1]), &parent) {
ctp.RenderErrorResponse(w, context, ctp.NewNotFoundErrorf("Not found - /%s/%s does not exist", context.Params[0], context.Params[1]))
return
}
if !context.VerifyAccessTags(w, parent.AccessTags) {
return
}
collection.Scope = ctp.NewLink(context.CtpBase, "/$/$", context.Params[0], context.Params[1])
collectionType = context.Params[2]
if context.Params[2] == "indicators" {
mgoCollection = context.Session.DB("ctp").C("measurements")
} else {
mgoCollection = context.Session.DB("ctp").C(collectionType)
}
selector["parent"] = context.Params[1]
}
query = mgoCollection.Find(selector)
collection_length, err := query.Count()
if err != nil {
ctp.RenderErrorResponse(w, context, ctp.NewInternalServerError(err))
return
}
query = query.Sort("$natural").Skip(skip).Limit(items)
returned_length, err := query.Count()
if err != nil {
ctp.RenderErrorResponse(w, context, ctp.NewInternalServerError(err))
return
}
collection.Self = ctp.Link(r.URL.RequestURI())
collection.CollectionLength = collection_length
collection.ReturnedLength = returned_length
collection.CollectionType = collectionType
collection.Items = make([]CollectionItem, 0, returned_length)
iter := query.Iter()
for iter.Next(&item) {
collection.Items = append(collection.Items, CollectionItem{
Link: ctp.NewLink(context.CtpBase, "@/$/$", collectionType, item.Id),
Name: item.Name,
})
}
if err := iter.Close(); err != nil {
ctp.RenderErrorResponse(w, context, ctp.NewInternalServerError(err))
return
}
ctp.RenderJsonResponse(w, context, 200, collection)
}