Mercurial > dive4elements > river
changeset 2619:6ed24efc80de
Loaded columns of fixings from database and store them into the cache.
flys-artifacts/trunk@4204 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
---|---|
date | Thu, 05 Apr 2012 15:29:52 +0000 |
parents | 3a93bbbe2ec7 |
children | cc0fa1798a3c |
files | flys-artifacts/ChangeLog flys-artifacts/doc/conf/cache.xml flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsColumn.java flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsColumnFactory.java |
diffstat | 4 files changed, 99 insertions(+), 18 deletions(-) [+] |
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--- a/flys-artifacts/ChangeLog Thu Apr 05 15:29:25 2012 +0000 +++ b/flys-artifacts/ChangeLog Thu Apr 05 15:29:52 2012 +0000 @@ -1,3 +1,13 @@ +2012-04-05 Sascha L. Teichmann <sascha.teichmann@intevation.de> + + * src/main/java/de/intevation/flys/artifacts/model/FixingsColumnFactory.java: + Load ws and qs from database. Cache the fixings columns. + + * src/main/java/de/intevation/flys/artifacts/model/FixingsColumn.java: + Removed column id and added q values. + + * doc/conf/cache.xml: Added cache for the columns of the fixings. + 2012-04-05 Raimund Renkert <raimund.renkert@intevation.de> Fix for 'W free' validation and theme names. @@ -35,7 +45,6 @@ src/main/java/de/intevation/flys/utils/MapfileGenerator.java: Methods for creating the WSPLGEN layer now take a style document. - 2012-04-04 Sascha L. Teichmann <sascha.teichmann@intevation.de> * src/main/java/de/intevation/flys/artifacts/services/FixingsKMChartService.java:
--- a/flys-artifacts/doc/conf/cache.xml Thu Apr 05 15:29:25 2012 +0000 +++ b/flys-artifacts/doc/conf/cache.xml Thu Apr 05 15:29:52 2012 +0000 @@ -104,6 +104,16 @@ diskPersistent="true" /> + <!-- This one is used to hold the data columns of fixings. --> + <cache name="fixings-columns" + maxElementsInMemory="50" + eternal="false" + timeToLiveSeconds="7200" + memoryStoreEvictionPolicy="LFU" + overflowToDisk="true" + diskPersistent="true" + /> + <!-- This one is used to load single HYK Zones --> <cache name="hykache" maxElementsInMemory="500"
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsColumn.java Thu Apr 05 15:29:25 2012 +0000 +++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsColumn.java Thu Apr 05 15:29:52 2012 +0000 @@ -9,8 +9,6 @@ public class FixingsColumn implements Serializable { - protected int columnId; - protected double [] kms; protected double [] ws; @@ -20,22 +18,18 @@ } public FixingsColumn( - int columnId, - double [] kms, - double [] ws + double [] kms, + double [] ws, + QRangeTree qs ) { - this.columnId = columnId; - this.kms = kms; - this.ws = ws; - } - - public int getColumnId() { - return columnId; + this.kms = kms; + this.ws = ws; + this.qs = qs; } public boolean getW(double km, double [] w) { - if (km < kms[0] || km > kms[kms.length-1]) { + if (kms.length == 0 || km < kms[0] || km > kms[kms.length-1]) { w[0] = Double.NaN; return true; }
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsColumnFactory.java Thu Apr 05 15:29:25 2012 +0000 +++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsColumnFactory.java Thu Apr 05 15:29:52 2012 +0000 @@ -2,17 +2,31 @@ import de.intevation.flys.artifacts.model.FixingsOverview.Fixing; +import de.intevation.flys.artifacts.cache.CacheFactory; + +import de.intevation.flys.backend.SessionHolder; + +import java.util.List; + +import net.sf.ehcache.Cache; +import net.sf.ehcache.Element; + +import org.hibernate.Session; +import org.hibernate.SQLQuery; + +import org.hibernate.type.StandardBasicTypes; + public class FixingsColumnFactory { public static final String CACHE_NAME = "fixing-columns"; - public static final String SQL_COLUMN_W = + public static final String SQL_COLUMN_WS = "SELECT wcv.position AS km, wcv.w AS w " + "FROM wst_column_values wcv " + "WHERE wst_column_id = :column_id " + "ORDER by wcv.position"; - public static final String SQL_COLUMN_Q = + public static final String SQL_COLUMN_QS = "SELECT wqr.q AS q, r.a AS a, r.b AS b " + "FROM wst_column_q_ranges wcqr " + "JOIN wst_q_ranges wqr ON wcqr.wst_q_range_id = wqr.id " + @@ -26,8 +40,62 @@ } public FixingsColumn getColumnData(Fixing.Column column) { - // TODO: Implement me! - return null; + + FixingsColumn result; + + Cache cache = CacheFactory.getCache(CACHE_NAME); + + if (cache != null) { + Integer cacheKey = Integer.valueOf(column.getId()); + Element element = cache.get(cacheKey); + + if (element != null) { + return (FixingsColumn)element.getValue(); + } + + result = getUncached(column); + cache.put(new Element(cacheKey, result)); + } + else { + result = getUncached(column); + } + + return result; + } + + protected FixingsColumn getUncached(Fixing.Column column) { + Session session = SessionHolder.HOLDER.get(); + + SQLQuery sqlQuery = session.createSQLQuery(SQL_COLUMN_WS) + .addScalar("km", StandardBasicTypes.DOUBLE) + .addScalar("w", StandardBasicTypes.DOUBLE); + + sqlQuery.setInteger("column_id", column.getId()); + + List<Object []> results = sqlQuery.list(); + + double [] kms = new double[results.size()]; + double [] ws = new double[kms.length]; + + for (int i = 0; i < kms.length; ++i) { + Object [] row = results.get(i); + kms[i] = ((Double)row[0]).doubleValue(); + ws [i] = ((Double)row[1]).doubleValue(); + } + + sqlQuery = session.createSQLQuery(SQL_COLUMN_QS) + .addScalar("q", StandardBasicTypes.DOUBLE) + .addScalar("a", StandardBasicTypes.DOUBLE) + .addScalar("b", StandardBasicTypes.DOUBLE); + + sqlQuery.setInteger("column_id", column.getId()); + + results = sqlQuery.list(); + + QRangeTree qs = new QRangeTree( + results, QRangeTree.WITHOUT_COLUMN, 0, results.size()); + + return new FixingsColumn(kms, ws, qs); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :