Mercurial > gemma
view pkg/imports/bn.go @ 3302:ec6163c6687d
'Historicise' gauges on import
Gauge data sets will be updated or a new version will be inserted
depending on temporal validity and a timestamp marking the last
update in the RIS-Index of a data set. The trigger on date_info is
removed because the value is actually an attribut coming from the
RIS-Index.
Gauge measurements and predictions are associated to the version with
matching temporal validity. Bottlenecks are always associated to the
actual version of the gauge, although this might change as soon as
bottlenecks are 'historicised', too.
author | Tom Gottfried <tom@intevation.de> |
---|---|
date | Thu, 16 May 2019 18:41:43 +0200 |
parents | bfde4f8dd323 |
children | 6592396f5061 |
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// This is Free Software under GNU Affero General Public License v >= 3.0 // without warranty, see README.md and license for details. // // SPDX-License-Identifier: AGPL-3.0-or-later // License-Filename: LICENSES/AGPL-3.0.txt // // Copyright (C) 2018, 2019 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha L. Teichmann <sascha.teichmann@intevation.de> // * Tom Gottfried <tom.gottfried@intevation.de> package imports import ( "context" "database/sql" "errors" "regexp" "strconv" "time" "gemma.intevation.de/gemma/pkg/soap/ifbn" ) // Bottleneck is an import job to import // bottlenecks from an IFBN SOAP service. type Bottleneck struct { // URL is the URL of the SOAP service. URL string `json:"url"` // Tolerance used for axis snapping Tolerance float64 `json:"tolerance"` // Insecure indicates if HTTPS traffic // should validate certificates or not. Insecure bool `json:"insecure"` } // BNJobKind is the import queue type identifier. const BNJobKind JobKind = "bn" const ( hasBottleneckSQL = ` SELECT true FROM waterway.bottlenecks WHERE bottleneck_id = $1` insertBottleneckSQL = ` INSERT INTO waterway.bottlenecks ( bottleneck_id, gauge_location, gauge_validity, objnam, nobjnm, stretch, area, rb, lb, responsible_country, revisiting_time, limiting, date_info, source_organization ) VALUES ( $1, isrs_fromText($2), (SELECT validity FROM waterway.gauges WHERE location = isrs_fromText($2) AND NOT erased), $3, $4, isrsrange(least(isrs_fromText($5), isrs_fromText($6)), greatest(isrs_fromText($5), isrs_fromText($6))), ISRSrange_area( ISRSrange_axis(isrsrange(least(isrs_fromText($5), isrs_fromText($6)), greatest(isrs_fromText($5), isrs_fromText($6))), $14), (SELECT ST_Collect(CAST(area AS geometry)) FROM waterway.waterway_area)), $7, $8, $9, $10, $11, $12, $13 ) RETURNING id` insertBottleneckMaterialSQL = ` INSERT INTO waterway.bottlenecks_riverbed_materials ( bottleneck_id, riverbed ) VALUES ( $1, $2 )` ) type bnJobCreator struct{} func init() { RegisterJobCreator(BNJobKind, bnJobCreator{}) } func (bnJobCreator) Description() string { return "bottlenecks" } func (bnJobCreator) AutoAccept() bool { return false } func (bnJobCreator) Create() Job { return new(Bottleneck) } func (bnJobCreator) Depends() [2][]string { return [2][]string{ {"bottlenecks", "bottlenecks_riverbed_materials"}, {"gauges", "distance_marks_virtual", "waterway_axis", "waterway_area"}, } } const ( bnStageDoneSQL = ` UPDATE waterway.bottlenecks SET staging_done = true WHERE id IN ( SELECT key from import.track_imports WHERE import_id = $1 AND relation = 'waterway.bottlenecks'::regclass)` ) // StageDone moves the imported bottleneck out of the staging area. func (bnJobCreator) StageDone( ctx context.Context, tx *sql.Tx, id int64, ) error { _, err := tx.ExecContext(ctx, bnStageDoneSQL, id) return err } // CleanUp of a bottleneck import is a NOP. func (*Bottleneck) CleanUp() error { return nil } var rblbRe = regexp.MustCompile(`(..)_(..)`) func splitRBLB(s string) (*string, *string) { m := rblbRe.FindStringSubmatch(s) if len(m) == 0 { return nil, nil } return &m[1], &m[2] } func revisitingTime(s string) int { v, err := strconv.Atoi(s) if err != nil { v = 0 } return v } // Do executes the actual bottleneck import. func (bn *Bottleneck) Do( ctx context.Context, importID int64, conn *sql.Conn, feedback Feedback, ) (interface{}, error) { fetch := func() ([]*ifbn.BottleNeckType, error) { client := ifbn.NewIBottleneckService(bn.URL, bn.Insecure, nil) req := &ifbn.Export_bn_by_isrs{} resp, err := client.Export_bn_by_isrs(req) if err != nil { return nil, err } if resp.Export_bn_by_isrsResult == nil { return nil, errors.New("no Bottlenecks found") } return resp.Export_bn_by_isrsResult.BottleNeckType, nil } return storeBottlenecks(ctx, fetch, importID, conn, feedback, bn.Tolerance) } func storeBottlenecks( ctx context.Context, fetch func() ([]*ifbn.BottleNeckType, error), importID int64, conn *sql.Conn, feedback Feedback, tolerance float64, ) (interface{}, error) { start := time.Now() bns, err := fetch() if err != nil { return nil, err } feedback.Info("Found %d bottlenecks for import", len(bns)) var hasStmt, insertStmt, insertMaterialStmt, trackStmt *sql.Stmt for _, x := range []struct { sql string stmt **sql.Stmt }{ {hasBottleneckSQL, &hasStmt}, {insertBottleneckSQL, &insertStmt}, {insertBottleneckMaterialSQL, &insertMaterialStmt}, {trackImportSQL, &trackStmt}, } { var err error if *x.stmt, err = conn.PrepareContext(ctx, x.sql); err != nil { return nil, err } defer (*x.stmt).Close() } var nids []string feedback.Info("Tolerance used to snap waterway axis: %g", tolerance) for _, bn := range bns { if err := storeBottleneck( ctx, importID, conn, feedback, bn, &nids, tolerance, hasStmt, insertStmt, insertMaterialStmt, trackStmt); err != nil { return nil, err } } if len(nids) == 0 { return nil, UnchangedError("No new bottlenecks inserted") } feedback.Info("Storing %d bottlenecks took %s", len(nids), time.Since(start)) feedback.Info("Import of bottlenecks was successful") summary := struct { Bottlenecks []string `json:"bottlenecks"` }{ Bottlenecks: nids, } return &summary, nil } func storeBottleneck( ctx context.Context, importID int64, conn *sql.Conn, feedback Feedback, bn *ifbn.BottleNeckType, nids *[]string, tolerance float64, hasStmt, insertStmt, insertMaterialStmt, trackStmt *sql.Stmt, ) error { tx, err := conn.BeginTx(ctx, nil) if err != nil { return err } defer tx.Rollback() var found bool err = tx.StmtContext(ctx, hasStmt).QueryRowContext(ctx, bn.Bottleneck_id).Scan(&found) switch { case err == sql.ErrNoRows: // This is good. case err != nil: return err case found: feedback.Info("'%s' already in database. Skip", bn.OBJNAM) // TODO: Deep comparison database vs. SOAP. return nil } rb, lb := splitRBLB(bn.Rb_lb) var limiting, country string if bn.Limiting_factor != nil { limiting = string(*bn.Limiting_factor) } if bn.Responsible_country != nil { country = string(*bn.Responsible_country) } var nid int64 err = tx.StmtContext(ctx, insertStmt).QueryRowContext( ctx, bn.Bottleneck_id, bn.Fk_g_fid, bn.OBJNAM, bn.NOBJNM, bn.From_ISRS, bn.To_ISRS, rb, lb, country, revisitingTime(bn.Revisiting_time), limiting, bn.Date_Info, bn.Source, tolerance, ).Scan(&nid) if err != nil { feedback.Warn("Failed to insert '%s' into database", bn.OBJNAM) feedback.Warn(handleError(err).Error()) return nil } if bn.Riverbed != nil { for _, material := range bn.Riverbed.Material { if material != nil { mat := string(*material) if _, err := tx.StmtContext(ctx, insertMaterialStmt).ExecContext( ctx, nid, material); err != nil { feedback.Warn( "Failed to insert riverbed material '%s' for bottleneck '%s'.", mat, bn.OBJNAM) feedback.Warn(handleError(err).Error()) } } } } if _, err := tx.StmtContext(ctx, trackStmt).ExecContext( ctx, importID, "waterway.bottlenecks", nid, ); err != nil { return err } if err = tx.Commit(); err != nil { return err } feedback.Info("Inserted '%s' into database", bn.OBJNAM) *nids = append(*nids, bn.Bottleneck_id) return nil }