Golang FlightDB.LookupTimeRangeByTags方法代码示例

func brixxViolationReport(c appengine.Context, s, e time.Time, opt ReportOptions) ([]ReportRow, ReportMetadata, error) {
	meta := ReportMetadata{}
	fdb := fdb.FlightDB{C: c}
	maybeMemcache(&fdb, e)
	tags := []string{flightdb.KTagBRIXX}
	if flights, err := fdb.LookupTimeRangeByTags(tags, s, e); err != nil {
		return nil, nil, err

	} else {
		out := []ReportRow{}

		// Hmm. Really need a better way to link 'violations in this report' to dots on the map
		for _, f := range flights {
			t := f.BestTrack()
			for i, tp := range t {
				if tp.Latlong.DistNM(sfo.KLatlongSJC) > 20 {
					continue
				}
				if tp.AltitudeFeet < 5500 && tp.Latlong.Long < sfo.KFixes["YADUT"].Long {
					row := BrixxRow{
						Url:    flight2Url(f),
						F:      f,
						Source: t.LongSource(),
						TP:     &t[i],
					}
					out = append(out, row)
					break
				}
			}
		}
		return out, meta, nil
	}
}

func skimmerReport(c appengine.Context, s, e time.Time, opt ReportOptions) ([]ReportRow, ReportMetadata, error) {
	meta := ReportMetadata{}
	fdb := fdb.FlightDB{C: c}
	maybeMemcache(&fdb, e)
	tags := []string{flightdb.KTagSERFR1}
	if flights, err := fdb.LookupTimeRangeByTags(tags, s, e); err != nil {
		return nil, nil, err

	} else {
		out := []ReportRow{}

		for _, f := range flights {
			t := f.BestTrack()
			_, analysis := t.SkimsToSFO(opt.Skimmer_AltitudeTolerance, opt.Skimmer_MinDurationNM, 14.5, 50)

			// Output one row per event, in a kind of hacky way
			extras := fmt.Sprintf("&skim=1&alttol=%.0f&mindist=%.0f", opt.Skimmer_AltitudeTolerance,
				opt.Skimmer_MinDurationNM)
			for _, event := range analysis.Events {
				row := SkimRow{Url: flight2Url(f) + template.HTML(extras), F: f, Source: t.LongSource(), A: analysis}
				row.A.Events = []flightdb.SkimEvent{event}
				out = append(out, row)

			}
		}
		return out, meta, nil
	}
}

func brixx1Report(c appengine.Context, s, e time.Time, opt ReportOptions) ([]ReportRow, ReportMetadata, error) {
	meta := ReportMetadata{}
	fdb := fdb.FlightDB{C: c}
	maybeMemcache(&fdb, e)
	tags := []string{flightdb.KTagBRIXX}
	if flights, err := fdb.LookupTimeRangeByTags(tags, s, e); err != nil {
		return nil, nil, err

	} else {
		out := []ReportRow{}

		meta["[A] Total BRIXX flights "] = float64(len(flights))

		for _, f := range flights {
			hasAdsb := false
			if _, exists := f.Tracks["ADSB"]; exists == true {
				meta["[B] With data from "+f.Tracks["ADSB"].LongSource()]++
			}
			if t, exists := f.Tracks["FA"]; exists == true {
				meta["[B] With data from "+f.Tracks["FA"].LongSource()]++
				hasAdsb = t.IsFromADSB()
			} else {
				meta["[B] With data from "+f.Track.LongSource()]++
			}

			row := SERFR1Row{flight2Url(f), f, hasAdsb, false}
			out = append(out, row)

		}
		return out, meta, nil
	}
}

// We examine the tags CGI arg, which should be a pipe-delimited set of flight tags.
func flightListHandler(w http.ResponseWriter, r *http.Request) {
	c := appengine.NewContext(r)
	db := fdb.FlightDB{C: c}

	tags := []string{}
	if r.FormValue("tags") != "" {
		tags = append(tags, strings.Split(r.FormValue("tags"), "|")...)
	}

	timeRange := regexp.MustCompile("/fdb/(.+)$").ReplaceAllString(r.URL.Path, "$1")
	var flights []ftype.Flight
	var err error

	switch timeRange {
	case "recent":
		flights, err = db.LookupRecentByTags(tags, 200)
	case "today":
		s, e := date.WindowForToday()
		flights, err = db.LookupTimeRangeByTags(tags, s, e)
	case "yesterday":
		s, e := date.WindowForYesterday()
		flights, err = db.LookupTimeRangeByTags(tags, s, e)
	}

	if err != nil {
		c.Errorf(" %s: %v", r.URL.Path, err)
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	var params = map[string]interface{}{
		"Tags":      tags,
		"TimeRange": timeRange,
		"Flights":   flights2params(flights),
	}
	if err := templates.ExecuteTemplate(w, "fdb-recentlist", params); err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
	}
}

func adsbClassbReport(c appengine.Context, s, e time.Time, opt ReportOptions) ([]ReportRow, ReportMetadata, error) {
	fdb := fdb.FlightDB{C: c}
	maybeMemcache(&fdb, e)
	tags := []string{flightdb.KTagSERFR1}
	if flights, err := fdb.LookupTimeRangeByTags(tags, s, e); err != nil {
		return nil, nil, err
	} else {
		meta := ReportMetadata{}
		rows := []ReportRow{}

		for _, f := range flights {
			row := ACBRow{F: f, Url: flight2Url(f)}

			_, cbt := f.SFOClassB("FA", nil)
			worst := cbt.FindWorstPoint()
			row.FAViolation = (worst != nil)
			if worst != nil {
				row.FAAnalysis = worst.A
			}

			if f.HasTrack("ADSB") {
				row.HadLocalTrack = true
				_, cbt := f.SFOClassB("ADSB", nil)
				worst := cbt.FindWorstPoint()
				row.LocalViolation = (worst != nil)
				if worst != nil {
					row.LocalAnalysis = worst.A
				}
			}

			if row.LocalViolation && !row.FAViolation {
				row.FoundBonusViolation = true
			}
			if row.LocalViolation && row.FAViolation {
				hFA := row.FAAnalysis.BelowBy
				hLocal := row.LocalAnalysis.BelowBy
				row.IncreasedViolationBy = hLocal - hFA
			}

			if row.LocalViolation || row.FAViolation {
				rows = append(rows, row)
			}
		}

		return rows, meta, nil
	}
}

func discrepReport(c appengine.Context, s, e time.Time, opt ReportOptions) ([]ReportRow, ReportMetadata, error) {
	meta := ReportMetadata{}
	fdb := fdb.FlightDB{C: c}
	maybeMemcache(&fdb, e)
	tags := []string{flightdb.KTagSERFR1}
	if flights, err := fdb.LookupTimeRangeByTags(tags, s, e); err != nil {
		return nil, nil, err

	} else {
		out := []ReportRow{}

		for _, f := range flights {
			// If only one source has ADS-B, flag it
			interest := false
			if f.HasTrack("ADSB") && !f.HasTrack("FA:TA") {
				interest = true
				meta["Missing from FlightAware ADS-B"] += 1
			}
			if !f.HasTrack("ADSB") && f.HasTrack("FA:TA") {
				interest = true
				meta["Missing from local ADS-B"] += 1
			}

			// If both have ADS-B, look for missed violations
			if f.HasTrack("ADSB") && f.HasTrack("FA:TA") {
				if f.HasTag("ClassB:ADSB") && !f.HasTag("ClassB:FA") {
					interest = true
					meta["Bonus violations"] += 1
				}
				if !f.HasTag("ClassB:ADSB") && f.HasTag("ClassB:FA") {
					interest = true
					meta["Missed violations"] += 1
				}
			}

			if !interest {
				continue
			}

			row := SERFR1Row{flight2Url(f), f, false, false}
			out = append(out, row)
		}
		return out, meta, nil
	}
}