view flys-aft/src/main/resources/sql/flys-common.properties @ 5779:ebec12def170

Datacage: Add a pool of builders to make it multi threadable. XML DOM is not thread safe. Therefore the old implementation only allowed one thread to use the builder at a time. As the complexity of the configuration has increased over time this has become a bottleneck of the whole application because it took quiet some time to build a result. Furthermore the builder code path is visited very frequent. So many concurrent requests were piled up resulting in long waits for the users. To mitigate this problem a round robin pool of builders is used now. Each of the pooled builders has an independent copy of the XML template and can be run in parallel. The number of builders is determined by the system property 'flys.datacage.pool.size'. It defaults to 4.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 21 Apr 2013 12:48:09 +0200
parents 11fba4dabe05
children
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select.rivers = \
    SELECT r.id AS id, r.name AS name, min(wcv.position) AS min_km, max(wcv.position) AS max_km \
    FROM rivers r \
        JOIN wsts w ON r.id = w.river_id \
        JOIN wst_columns wc ON w.id = wc.wst_id \
        JOIN wst_column_values wcv ON wcv.wst_column_id = wc.id \
    WHERE w.kind = 0 \
    GROUP BY r.id, r.name
select.gauges = \
    SELECT id, name, official_number \
    FROM gauges \
    WHERE river_id = :river_id
next.gauge.id = \
    SELECT NEXTVAL('GAUGES_ID_SEQ') AS gauge_id
insert.gauge = \
    INSERT INTO gauges (id, name, river_id, station, aeo, official_number, datum) \
    VALUES(:id, :name, :river_id, :station, :aeo, :official_number, :datum)
select.timeintervals = \
    SELECT id, start_time, stop_time FROM time_intervals
next.timeinterval.id = \
    SELECT NEXTVAL('TIME_INTERVALS_ID_SEQ') AS time_interval_id
insert.timeinterval = \
    INSERT INTO time_intervals (id, start_time, stop_time) \
    VALUES (:id, :start_time, :stop_time)
next.discharge.id = \
    SELECT NEXTVAL('DISCHARGE_TABLES_ID_SEQ') AS discharge_table_id
insert.dischargetable = \
    INSERT INTO discharge_tables \
    (id, gauge_id, description, bfg_id, kind, time_interval_id) \
    VALUES (:id, :gauge_id, :description, :bfg_id, 1, :time_interval_id)
select.discharge.table.values = \
    SELECT id, w, q FROM discharge_table_values WHERE table_id = :table_id
next.discharge.table.values.id = \
    SELECT NEXTVAL('DISCHARGE_TABLE_VALUES_ID_SEQ') AS discharge_table_values_id
insert.discharge.table.value = \
    INSERT INTO discharge_table_values (id, table_id, w, q) \
    VALUES (:id, :table_id, :w, :q)
delete.discharge.table.value = \
    DELETE FROM discharge_table_values WHERE id = :id
select.gauge.discharge.tables = \
    SELECT \
        dt.id          AS id, \
        dt.description AS description, \
        ti.start_time  AS start_time, \
        ti.stop_time   AS stop_time, \
        dt.bfg_id      AS bfg_id \
    FROM discharge_tables dt \
    LEFT OUTER JOIN time_intervals ti ON dt.time_interval_id = ti.id \
    WHERE gauge_id = :gauge_id
select.gauge.master.discharge.table = \
    SELECT \
        dt.id AS id, \
        dt.bfg_id AS bfg_id \
    FROM discharge_tables dt JOIN gauges g ON dt.gauge_id = g.id \
    WHERE g.id = :gauge_id AND dt.kind = 0
update.bfg.id.discharge.table = \
    UPDATE discharge_tables SET bfg_id = :bfg_id WHERE id = :id

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