Mercurial > gemma
view pkg/imports/ugm.go @ 5520:05db984d3db1
Improve performance of bottleneck area calculation
Avoid buffer calculations by replacing them with simple distance comparisons
and calculate the boundary of the result geometry only once per iteration.
In some edge cases with very large numbers of iterations, this reduced
the runtime of a bottleneck import by a factor of more than twenty.
author | Tom Gottfried <tom@intevation.de> |
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date | Thu, 21 Oct 2021 19:50:39 +0200 |
parents | 56c589f7435d |
children | 6270951dda28 |
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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 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha L. Teichmann <sascha.teichmann@intevation.de> package imports import ( "context" "database/sql" "errors" "os" "path/filepath" "gemma.intevation.de/gemma/pkg/soap" "gemma.intevation.de/gemma/pkg/soap/nts" ) // UploadedGaugeMeasurement is an Jon to extract gauge measurement data // from an uploaded XML file and stores it into the database. type UploadedGaugeMeasurement struct { Dir string `json:"dir"` } // UGMJobKind is the unique name of this import job type. const UGMJobKind JobKind = "ugm" type ugmJobCreator struct{} func init() { RegisterJobCreator(UGMJobKind, ugmJobCreator{}) } func (ugmJobCreator) Description() string { return "uploaded gauge measurements" } func (ugmJobCreator) Create() Job { return new(UploadedGaugeMeasurement) } func (ugmJobCreator) Depends() [2][]string { return gmJobCreator{}.Depends() } func (ugmJobCreator) AutoAccept() bool { return true } // StageDone is a NOP for gauge measurements imports. func (ugmJobCreator) StageDone(context.Context, *sql.Tx, int64, Feedback) error { return nil } // CleanUp removes the temporary files from the filesystem. func (ugm *UploadedGaugeMeasurement) CleanUp() error { return os.RemoveAll(ugm.Dir) } // Do executes the actual uploaded gauge measurement import. func (ugm *UploadedGaugeMeasurement) Do( ctx context.Context, importID int64, conn *sql.Conn, feedback Feedback, ) (interface{}, error) { fetch := func() ([]*nts.RIS_Message_Type, error) { var dst nts.Get_messages_result if err := soap.ValidateFile( filepath.Join(ugm.Dir, "data.xml"), "NtS.xsd", &dst, ); err != nil { return nil, err } if len(dst.Result_message) == 0 { return nil, errors.New("no gauge measurements found") } return dst.Result_message, nil } return storeGaugeMeasurements( ctx, importID, fetch, conn, feedback, ) }