func intensityMeasuredLatest(w http.ResponseWriter, r *http.Request) {
if err := intensityMeasuredLatestD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
if r.URL.Query().Get("type") != "measured" {
web.BadRequest(w, r, "type must be measured.")
return
}
var d string
err := db.QueryRow(
`SELECT row_to_json(fc)
FROM ( SELECT 'FeatureCollection' as type, COALESCE(array_to_json(array_agg(f)), '[]') as features
FROM (SELECT 'Feature' as type,
ST_AsGeoJSON(s.location)::json as geometry,
row_to_json(( select l from
(
select mmi
) as l ))
as properties from (select location, mmi
FROM impact.intensity_measured) as s
) As f ) as fc`).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
b := []byte(d)
web.Ok(w, r, &b)
}
func alertLevel(w http.ResponseWriter, r *http.Request) {
if len(r.URL.Query()) != 0 {
web.BadRequest(w, r, "incorrect number of query parameters.")
return
}
var d string
err := db.QueryRow(`SELECT row_to_json(fc)
FROM ( SELECT 'FeatureCollection' as type, array_to_json(array_agg(f)) as features
FROM (SELECT 'Feature' as type,
ST_AsGeoJSON(v.location)::json as geometry,
row_to_json((SELECT l FROM
(
SELECT
id AS "volcanoID",
title AS "volcanoTitle",
alert_level as "level",
activity,
hazards
) as l
)) as properties FROM (qrt.volcano JOIN qrt.volcanic_alert_level using (alert_level)) as v ) As f ) as fc`).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
b := []byte(d)
web.Ok(w, r, &b)
}
// just quake regions at the moment.
func regions(w http.ResponseWriter, r *http.Request) {
if err := regionsD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
if r.URL.Query().Get("type") != "quake" {
web.BadRequest(w, r, "type must be quake.")
return
}
var d string
err := db.QueryRow(`SELECT row_to_json(fc)
FROM ( SELECT 'FeatureCollection' as type, array_to_json(array_agg(f)) as features
FROM (SELECT 'Feature' as type,
ST_AsGeoJSON(q.geom)::json as geometry,
row_to_json((SELECT l FROM
(
SELECT
regionname as "regionID",
title,
groupname as group
) as l
)) as properties FROM qrt.region as q where groupname in ('region', 'north', 'south')) as f ) as fc`).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
w.Header().Set("Surrogate-Control", web.MaxAge86400)
b := []byte(d)
web.Ok(w, r, &b)
}
func quake(w http.ResponseWriter, r *http.Request) {
if len(r.URL.Query()) != 0 {
web.BadRequest(w, r, "incorrect number of query parameters.")
return
}
publicID := r.URL.Path[quakeLen:]
// TODO bother with this?
if !publicIDRe.MatchString(publicID) {
web.BadRequest(w, r, "invalid publicID: "+publicID)
return
}
var d string
// Check that the publicid exists in the DB. This is needed as the handle method will return empty
// JSON for an invalid publicID.
err := db.QueryRow("select publicid FROM qrt.quake_materialized where publicid = $1", publicID).Scan(&d)
if err == sql.ErrNoRows {
web.NotFound(w, r, "invalid publicID: "+publicID)
return
}
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
err = db.QueryRow(
`SELECT row_to_json(fc)
FROM ( SELECT 'FeatureCollection' as type, array_to_json(array_agg(f)) as features
FROM (SELECT 'Feature' as type,
ST_AsGeoJSON(q.origin_geom)::json as geometry,
row_to_json((SELECT l FROM
(
SELECT
publicid AS "publicID",
to_char(origintime, 'YYYY-MM-DD"T"HH24:MI:SS.MS"Z"') as "time",
depth,
magnitude,
type,
agency,
locality,
qrt.mmi_to_intensity(maxmmi) as intensity,
qrt.mmi_to_intensity(mmi_newzealand) as "regionIntensity",
qrt.quake_quality(status, usedphasecount, magnitudestationcount) as quality,
to_char(updatetime, 'YYYY-MM-DD"T"HH24:MI:SS.MS"Z"') as "modificationTime"
) as l
)) as properties FROM qrt.quake_materialized as q where publicid = $1 ) As f ) as fc`, publicID).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
b := []byte(d)
web.Ok(w, r, &b)
}
func felt(w http.ResponseWriter, r *http.Request) {
if err := feltD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
publicID := r.URL.Query().Get("publicID")
var d string
err := db.QueryRow("select publicid FROM qrt.quake_materialized where publicid = $1", publicID).Scan(&d)
if err == sql.ErrNoRows {
web.NotFound(w, r, "invalid publicID: "+publicID)
return
}
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
res, err := client.Get(feltURL + publicID + ".geojson")
defer res.Body.Close()
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
b, err := ioutil.ReadAll(res.Body)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
// Felt returns a 400 when it should probably be a 404. Tapestry quirk?
switch {
case 200 == res.StatusCode:
web.Ok(w, r, &b)
return
case 4 == res.StatusCode/100:
web.NotFound(w, r, string(b))
return
case 5 == res.StatusCode/500:
web.ServiceUnavailable(w, r, errors.New("error proxying felt resports. Shrug."))
return
}
web.ServiceUnavailable(w, r, errors.New("unknown response from felt."))
}
func news(w http.ResponseWriter, r *http.Request) {
if len(r.URL.Query()) != 0 {
web.BadRequest(w, r, "incorrect number of query parameters.")
return
}
j, err := fetchRSS(newsURL)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
w.Header().Set("Surrogate-Control", web.MaxAge300)
web.Ok(w, r, &j)
}
func intensityReportedLatest(w http.ResponseWriter, r *http.Request) {
if err := intensityReportedLatestD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
if r.URL.Query().Get("type") != "reported" {
web.BadRequest(w, r, "type must be reported.")
return
}
zoom := r.URL.Query().Get("zoom")
if !zoomRe.MatchString(r.URL.Query().Get("zoom")) {
web.BadRequest(w, r, "Invalid zoom")
return
}
var d string
err := db.QueryRow(
`SELECT row_to_json(fc)
FROM ( SELECT 'FeatureCollection' as type, COALESCE(array_to_json(array_agg(f)), '[]') as features
FROM (SELECT 'Feature' as type,
ST_AsGeoJSON(s.location)::json as geometry,
row_to_json(( select l from
(
select max_mmi,
min_mmi,
count
) as l ))
as properties from (select st_pointfromgeohash(geohash` + zoom + `) as location,
min(mmi) as min_mmi,
max(mmi) as max_mmi,
count(mmi) as count
FROM impact.intensity_reported
WHERE time >= (now() - interval '60 minutes')
group by (geohash` + zoom + `)) as s
) As f ) as fc`).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
b := []byte(d)
web.Ok(w, r, &b)
}
func siteType(w http.ResponseWriter, r *http.Request) {
if err := siteTypeD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
v := r.URL.Query()
if v.Get("methodID") != "" && v.Get("typeID") == "" {
web.BadRequest(w, r, "typeID must be specified when methodID is specified.")
return
}
var typeID, methodID, within string
if v.Get("typeID") != "" {
typeID = v.Get("typeID")
if !validType(w, r, typeID) {
return
}
if v.Get("methodID") != "" {
methodID = v.Get("methodID")
if !validTypeMethod(w, r, typeID, methodID) {
return
}
}
}
if v.Get("within") != "" {
within = strings.Replace(v.Get("within"), "+", "", -1)
if !validPoly(w, r, within) {
return
}
}
w.Header().Set("Content-Type", web.V1GeoJSON)
b, err := geoJSONSites(typeID, methodID, within)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
web.Ok(w, r, &b)
}
func method(w http.ResponseWriter, r *http.Request) {
if err := methodD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
typeID := r.URL.Query().Get("typeID")
if typeID != "" && !validType(w, r, typeID) {
return
}
var d string
var err error
switch typeID {
case "":
err = db.QueryRow(
`select row_to_json(fc) from (select array_to_json(array_agg(m)) as method
from (select methodid as "methodID", method.name, method.description, method.reference
from
fits.type join fits.type_method using (typepk)
join fits.method using (methodpk)) as m) as fc`).Scan(&d)
default:
err = db.QueryRow(
`select row_to_json(fc) from (select array_to_json(array_agg(m)) as method
from (select methodid as "methodID", method.name, method.description, method.reference
from
fits.type join fits.type_method using (typepk)
join fits.method using (methodpk)
where type.typeID = $1) as m) as fc`, typeID).Scan(&d)
}
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
w.Header().Set("Content-Type", web.V1JSON)
b := []byte(d)
web.Ok(w, r, &b)
}
func region(w http.ResponseWriter, r *http.Request) {
if len(r.URL.Query()) != 0 {
web.BadRequest(w, r, "incorrect number of query parameters.")
return
}
regionID := r.URL.Path[regionLen:]
var d string
err := db.QueryRow("select regionname FROM qrt.region where regionname = $1", regionID).Scan(&d)
if err == sql.ErrNoRows {
web.BadRequest(w, r, "invalid regionID: "+regionID)
return
}
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
err = db.QueryRow(`SELECT row_to_json(fc)
FROM ( SELECT 'FeatureCollection' as type, array_to_json(array_agg(f)) as features
FROM (SELECT 'Feature' as type,
ST_AsGeoJSON(q.geom)::json as geometry,
row_to_json((SELECT l FROM
(
SELECT
regionname as "regionID",
title,
groupname as group
) as l
)) as properties FROM qrt.region as q where regionname = $1 ) as f ) as fc`, regionID).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
w.Header().Set("Surrogate-Control", web.MaxAge86400)
b := []byte(d)
web.Ok(w, r, &b)
}
func typeH(w http.ResponseWriter, r *http.Request) {
if len(r.URL.Query()) != 0 {
web.BadRequest(w, r, "incorrect number of query params.")
return
}
w.Header().Set("Content-Type", web.V1JSON)
var d string
err := db.QueryRow(
`select row_to_json(fc) from (select array_to_json(array_agg(t)) as type
from (select typeid as "typeID", type.name, symbol as unit, description
from fits.type join fits.unit using (unitpk)) as t) as fc`).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
b := []byte(d)
web.Ok(w, r, &b)
}
func site(w http.ResponseWriter, r *http.Request) {
if err := siteD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
networkID := r.URL.Query().Get("networkID")
siteID := r.URL.Query().Get("siteID")
if !validSite(w, r, networkID, siteID) {
return
}
w.Header().Set("Content-Type", web.V1GeoJSON)
b, err := geoJSONSite(networkID, siteID)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
web.Ok(w, r, &b)
}
func quakes(w http.ResponseWriter, r *http.Request) {
if err := quakesD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
v := r.URL.Query()
number := v.Get("number")
regionID := v.Get("regionID")
intensity := v.Get("intensity")
quality := strings.Split(v.Get("quality"), ",")
if !numberRe.MatchString(number) {
web.BadRequest(w, r, "Invalid query parameter number: "+number)
return
}
if !intensityRe.MatchString(intensity) {
web.BadRequest(w, r, "Invalid intensity: "+intensity)
return
}
for _, q := range quality {
if !qualityRe.MatchString(q) {
web.BadRequest(w, r, "Invalid quality: "+q)
return
}
}
var d string
err := db.QueryRow("select regionname FROM qrt.region where regionname = $1 AND groupname in ('region', 'north', 'south')", regionID).Scan(&d)
if err == sql.ErrNoRows {
web.BadRequest(w, r, "invalid quake regionID: "+regionID)
return
}
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
err = db.QueryRow(
`SELECT row_to_json(fc)
FROM ( SELECT 'FeatureCollection' as type, COALESCE(array_to_json(array_agg(f)), '[]') as features
FROM (SELECT 'Feature' as type,
ST_AsGeoJSON(q.origin_geom)::json as geometry,
row_to_json((SELECT l FROM
(
SELECT
publicid AS "publicID",
to_char(origintime, 'YYYY-MM-DD"T"HH24:MI:SS.MS"Z"') as "time",
depth,
magnitude,
type,
agency,
locality,
intensity,
intensity_`+regionID+` as "regionIntensity",
quality,
to_char(updatetime, 'YYYY-MM-DD"T"HH24:MI:SS.MS"Z"') as "modificationTime"
) as l
)) as properties FROM qrt.quakeinternal_v2 as q where maxmmi >= qrt.intensity_to_mmi($1)
AND quality in ('`+strings.Join(quality, `','`)+`') AND ST_Contains((select geom from qrt.region where regionname = $3), ST_Shift_Longitude(origin_geom)) limit $2 ) as f ) as fc`, intensity, number, regionID).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
b := []byte(d)
web.Ok(w, r, &b)
}
func intensityReported(w http.ResponseWriter, r *http.Request) {
if err := intensityReportedD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
if r.URL.Query().Get("type") != "reported" {
web.BadRequest(w, r, "type must be reported.")
return
}
zoom := r.URL.Query().Get("zoom")
if !zoomRe.MatchString(r.URL.Query().Get("zoom")) {
web.BadRequest(w, r, "Invalid zoom")
return
}
// Check that the publicid exists in the DB.
// If it does we keep the origintime - we need it later on.
publicID := r.URL.Query().Get("publicID")
originTime := time.Time{}
err := db.QueryRow("select origintime FROM qrt.quake_materialized where publicid = $1", publicID).Scan(&originTime)
if err == sql.ErrNoRows {
web.NotFound(w, r, "invalid publicID: "+publicID)
return
}
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
query := `SELECT row_to_json(fc)
FROM ( SELECT 'FeatureCollection' as type, COALESCE(array_to_json(array_agg(f)), '[]') as features
FROM (SELECT 'Feature' as type,
ST_AsGeoJSON(s.location)::json as geometry,
row_to_json(( select l from
(
select max_mmi,
min_mmi,
count
) as l ))
as properties from (select st_pointfromgeohash(geohash` + zoom + `) as location,
min(mmi) as min_mmi,
max(mmi) as max_mmi,
count(mmi) as count
FROM impact.intensity_reported
WHERE time >= $1
AND time <= $2
group by (geohash` + zoom + `)) as s
) As f ) as fc`
var d string
err = db.QueryRow(query, originTime.Add(time.Duration(-1*time.Minute)), originTime.Add(time.Duration(15*time.Minute))).Scan(&d)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
b := []byte(d)
web.Ok(w, r, &b)
}
/**
* query end point for observation statistics including: max, min, mean, std, first and last values
* http://fits.geonet.org.nz/observation/stats?typeID=e&siteID=HOLD&networkID=CG&days=100
*/
func observationStats(w http.ResponseWriter, r *http.Request) {
//1. check query parameters
if err := observationD.CheckParams(r.URL.Query()); err != nil {
web.BadRequest(w, r, err.Error())
return
}
v := r.URL.Query()
typeID := v.Get("typeID")
networkID := v.Get("networkID")
siteID := v.Get("siteID")
if !validType(w, r, typeID) {
return
}
var days int
var err error
var tmin, tmax time.Time
if v.Get("days") != "" {
days, err = strconv.Atoi(v.Get("days"))
if err != nil || days > 365000 {
web.BadRequest(w, r, "Invalid days query param.")
return
}
tmax = time.Now().UTC()
tmin = tmax.Add(time.Duration(days*-1) * time.Hour * 24)
}
var methodID string
if v.Get("methodID") != "" {
methodID = v.Get("methodID")
if !validTypeMethod(w, r, typeID, methodID) {
return
}
}
//2. Find the unit
var unit string
err = db.QueryRow("select symbol FROM fits.type join fits.unit using (unitPK) where typeID = $1", typeID).Scan(&unit)
if err == sql.ErrNoRows {
web.NotFound(w, r, "unit not found for typeID: "+typeID)
return
}
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
// retrieve values using existing functions
values, err := loadObs(networkID, siteID, typeID, methodID, tmin)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
mean, stdDev, err := stddevPop(networkID, siteID, typeID, methodID, tmin)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
stats := obstats{Unit: unit,
Mean: mean,
StddevPopulation: stdDev}
//4. get maximum, minimum, first, last values
stats.First = values[0]
stats.Last = values[len(values)-1]
iMin, iMax, _ := extremes(values)
stats.Minimum = values[iMin]
stats.Maximum = values[iMax]
//5. send result response
w.Header().Set("Content-Type", web.V1JSON)
b, err := json.Marshal(stats)
if err != nil {
web.ServiceUnavailable(w, r, err)
return
}
web.Ok(w, r, &b)
}
