Mercurial > dive4elements > gnv-client
changeset 300:6a3a02e004d9
Refactored process of chart generation. Charts will be generated via Chart-Interface from rev351 and no more via factory classes.
gnv-artifacts/trunk@354 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
---|---|
date | Fri, 20 Nov 2009 13:51:14 +0000 (2009-11-20) |
parents | d6c75171f1e9 |
children | 3ea030aafe65 |
files | gnv-artifacts/ChangeLog gnv-artifacts/TODO gnv-artifacts/src/main/java/de/intevation/gnv/transition/OutputTransitionBase.java gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/horizontal/HorizontalProfileOutputTransition.java gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/horizontalcrosssection/HorizontalCrossSectionMeshOutputTransition.java gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/vertical/VerticalProfileOutputTransition.java gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/verticalcrosssection/VerticalCrossSectionOutputTransition.java gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java |
diffstat | 8 files changed, 345 insertions(+), 67 deletions(-) [+] |
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--- a/gnv-artifacts/ChangeLog Thu Nov 19 17:54:18 2009 +0000 +++ b/gnv-artifacts/ChangeLog Fri Nov 20 13:51:14 2009 +0000 @@ -1,3 +1,36 @@ +2009-11-20 Ingo Weinzierl <ingo.weinzierl@intevation.de> + + * src/main/java/de/intevation/gnv/transition/OutputTransitionBase.java: + Added methods for caching charts. + + * src/main/java/de/intevation/gnv/transition/profile/horizontal/HorizontalProfileOutputTransition.java, + src/main/java/de/intevation/gnv/transition/profile/vertical/VerticalProfileOutputTransition.java, + src/main/java/de/intevation/gnv/transition/profile/horizontalcrosssection/HorizontalCrossSectionMeshOutputTransition.java, + src/main/java/de/intevation/gnv/transition/profile/verticalcrosssection/VerticalCrossSectionOutputTransition.java, + src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java: + Changed chart generation. Charts will now be generated in a central place + in TimeSeriesOutputTransition which is the parent class of other + OutputTransitions. Each OutputTransition got a new method to serve its own + special chart class. + + * TODO: Added hint for caching charts. Verticalcrosssection and + orizontalcrosssection charts aren't implemented yet. + + NOTE: Charts can be cached. This could be useful if the user exports + charts as svg, png or pdf. The caching of charts is configured via system + property 'cache.chart' at the moment. + + +2009-11-19 Ingo Weinzierl <ingo.weinzierl@intevation.de> + + * src/main/java/de/intevation/gnv/artifacts/GNVArtifactBase.java, + src/main/java/de/intevation/gnv/transition/OutputTransition.java, + src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java: + Changed parameter of 'out'-method of OutputTransition. Now, the + OutputTransition gets the complete xml document of the request (before + just the target name). The mime type of this xml ist used to distinguish + between different output formats of charts (png, jpeg). + 2009-11-19 Ingo Weinzierl <ingo.weinzierl@intevation.de> * src/main/java/de/intevation/gnv/chart/TimeSeriesChart.java,
--- a/gnv-artifacts/TODO Thu Nov 19 17:54:18 2009 +0000 +++ b/gnv-artifacts/TODO Fri Nov 20 13:51:14 2009 +0000 @@ -0,0 +1,5 @@ +TODO: + * Caching of charts is configured via system property. This should be done + in another way. (Property: -Dcache.chart) + * charts for verticalcrosssection and horizontalcrosssection need to be + implemented
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/transition/OutputTransitionBase.java Thu Nov 19 17:54:18 2009 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/transition/OutputTransitionBase.java Fri Nov 20 13:51:14 2009 +0000 @@ -145,6 +145,20 @@ } return null; } + + protected Object getChartFromCache(String uuid) { + log.debug("Fetch chart [" + uuid + "] from cache"); + CacheFactory cacheFactory = CacheFactory.getInstance(); + if (cacheFactory.isInitialized()) { + String key = "chart_" + uuid + super.getID(); + net.sf.ehcache.Element object = cacheFactory.getCache().get(key); + + if (object != null) { + return object.getObjectValue(); + } + } + return null; + } protected Collection<Result> getODVResult(String uuid) { log.debug("OutputTransitionBase.getODVResult"); @@ -197,6 +211,16 @@ } } + + protected void purifyChart(Object chart, String uuid) { + log.debug("Prufify chart [" + uuid + "]"); + CacheFactory cacheFactory = CacheFactory.getInstance(); + if (cacheFactory.isInitialized()) { + String key = "chart_" + uuid + getID(); + cacheFactory.getCache().put(new net.sf.ehcache.Element(key, chart)); + } + } + /** * @see de.intevation.gnv.transition.TransitionBase#putInputData(java.util.Collection, java.lang.String) */
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/horizontal/HorizontalProfileOutputTransition.java Thu Nov 19 17:54:18 2009 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/horizontal/HorizontalProfileOutputTransition.java Fri Nov 20 13:51:14 2009 +0000 @@ -3,23 +3,31 @@ */ package de.intevation.gnv.transition.profile.horizontal; +import java.awt.Dimension; import java.io.IOException; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.UnsupportedEncodingException; import java.util.Collection; import java.util.Iterator; +import java.util.Locale; + +import javax.imageio.ImageIO; import org.apache.log4j.Logger; +import org.jfree.chart.ChartTheme; + import au.com.bytecode.opencsv.CSVWriter; import com.vividsolutions.jts.geom.Point; import com.vividsolutions.jts.io.ParseException; import com.vividsolutions.jts.io.WKTReader; +import de.intevation.gnv.chart.Chart; import de.intevation.gnv.chart.ChartLabels; import de.intevation.gnv.chart.ChartStyle; +import de.intevation.gnv.chart.HorizontalProfileChart; import de.intevation.gnv.chart.HorizontalProfileChartFactory; import de.intevation.gnv.chart.exception.TechnicalChartException; import de.intevation.gnv.geobackend.base.Result; @@ -73,25 +81,47 @@ super.domainLable = "Distance [km]"; } - /** - * @see de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition#createChart(java.io.OutputStream, - * java.util.Collection, java.util.Collection, java.lang.String, - * de.intevation.gnv.chart.ChartStyle, - * de.intevation.gnv.chart.ChartLabels) - */ - @Override - protected void createChart(OutputStream outputStream, - Collection<KeyValueDescibeData> parameters, - Collection<KeyValueDescibeData> measurements, - Collection<KeyValueDescibeData> dates, - ChartStyle chartStyle, ChartLabels chartLables, - String uuid) throws IOException, - TechnicalChartException { - HorizontalProfileChartFactory chartFactory = new HorizontalProfileChartFactory(); - chartFactory.createProfileChart(chartLables, chartStyle, parameters, - measurements,dates, outputStream, this.getChartResult(uuid)); + protected Chart getChart( + ChartLabels chartLables, + ChartTheme chartTheme, + Collection parameters, + Collection measurements, + Collection result, + Collection dates, + Locale locale, + String uuid + ) { + Chart chart = null; + + if (CACHE_CHART) { + log.info("Try to get horizontalprofile chart from cache."); + chart = (Chart) getChartFromCache(uuid); + } + + if (chart != null) + return chart; + + log.info("Chart not in cache yet."); + chart = new HorizontalProfileChart( + chartLables, + chartTheme, + parameters, + measurements, + result, + dates, + locale + ); + chart.generateChart(); + + if (CACHE_CHART) { + log.info("Put chart into cache."); + purifyChart(chart, uuid); + } + + return chart; } + /** * @see de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition#getStatisticsGenerator() */
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/horizontalcrosssection/HorizontalCrossSectionMeshOutputTransition.java Thu Nov 19 17:54:18 2009 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/horizontalcrosssection/HorizontalCrossSectionMeshOutputTransition.java Fri Nov 20 13:51:14 2009 +0000 @@ -9,10 +9,14 @@ import java.io.UnsupportedEncodingException; import java.util.Collection; import java.util.Iterator; +import java.util.Locale; import org.apache.log4j.Logger; +import org.jfree.chart.ChartTheme; + import au.com.bytecode.opencsv.CSVWriter; +import de.intevation.gnv.chart.Chart; import de.intevation.gnv.chart.ChartLabels; import de.intevation.gnv.chart.ChartStyle; import de.intevation.gnv.chart.HorizontalCrossSectionChartFactory; @@ -46,27 +50,52 @@ super.domainLable = "Latitude [m]"; } - /** - * @see de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition#createChart(java.io.OutputStream, - * java.util.Collection, java.util.Collection, java.lang.String, - * de.intevation.gnv.chart.ChartStyle, - * de.intevation.gnv.chart.ChartLabels) - */ - @Override - protected void createChart(OutputStream outputStream, - Collection<KeyValueDescibeData> parameters, - Collection<KeyValueDescibeData> measurements, - Collection<KeyValueDescibeData> dates, - ChartStyle chartStyle, ChartLabels chartLables, - String uuid) throws IOException, - TechnicalChartException { - new HorizontalCrossSectionChartFactory(). - createProfileChart(chartLables, chartStyle, - parameters, measurements, - dates, outputStream, - this.getChartResult(uuid)); + + protected Chart getChart( + ChartLabels chartLables, + ChartTheme chartTheme, + Collection parameters, + Collection measurements, + Collection result, + Collection dates, + Locale locale, + String uuid + ) { + Chart chart = null; + + if (CACHE_CHART) { + log.info("Try to get horizontalcrosssection chart from cache."); + chart = (Chart) getChartFromCache(uuid); + } + + if (chart != null) + return chart; + + log.info("Chart not in cache yet."); + + log.warn("This sort of chart is not implemented yet."); + /* TODO Implement a special chart for this sort of charts. + chart = new HorizontalProfileChart( + chartLables, + chartTheme, + parameters, + measurements, + result, + dates, + locale + ); + chart.generateChart(); + + if (CACHE_CHART) { + log.info("Put chart into cache."); + purifyChart(chart, uuid); + } + */ + + return chart; } + /** * @see de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition#getStatisticsGenerator() */
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/vertical/VerticalProfileOutputTransition.java Thu Nov 19 17:54:18 2009 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/vertical/VerticalProfileOutputTransition.java Fri Nov 20 13:51:14 2009 +0000 @@ -3,12 +3,23 @@ */ package de.intevation.gnv.transition.profile.vertical; +import java.awt.Dimension; + import java.io.IOException; import java.io.OutputStream; import java.util.Collection; +import java.util.Locale; +import javax.imageio.ImageIO; + +import org.apache.log4j.Logger; + +import org.jfree.chart.ChartTheme; + +import de.intevation.gnv.chart.Chart; import de.intevation.gnv.chart.ChartLabels; import de.intevation.gnv.chart.ChartStyle; +import de.intevation.gnv.chart.VerticalProfileChart; import de.intevation.gnv.chart.VerticalProfileChartFactory; import de.intevation.gnv.chart.exception.TechnicalChartException; import de.intevation.gnv.statistics.Statistics; @@ -26,6 +37,9 @@ */ private static final long serialVersionUID = 4401516087492028840L; + private static Logger log = Logger + .getLogger(TimeSeriesOutputTransition.class); + /** * Constructor */ @@ -34,23 +48,44 @@ super.domainLable = "Depth [m]"; } - /** - * @see de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition#createChart(java.io.OutputStream, - * java.util.Collection, java.util.Collection, java.lang.String, - * de.intevation.gnv.chart.ChartStyle, - * de.intevation.gnv.chart.ChartLabels) - */ - @Override - protected void createChart(OutputStream outputStream, - Collection<KeyValueDescibeData> parameters, - Collection<KeyValueDescibeData> measurements, - Collection<KeyValueDescibeData> dates, - ChartStyle chartStyle, ChartLabels chartLables, - String uuid) throws IOException, - TechnicalChartException { - VerticalProfileChartFactory chartFactory = new VerticalProfileChartFactory(); - chartFactory.createProfileChart(chartLables, chartStyle, parameters, - measurements,dates, outputStream, this.getChartResult(uuid)); + protected Chart getChart( + ChartLabels chartLables, + ChartTheme chartTheme, + Collection parameters, + Collection measurements, + Collection result, + Collection dates, + Locale locale, + String uuid + ) { + Chart chart = null; + + if (CACHE_CHART) { + log.info("Try to get verticalprofile chart from cache."); + chart = (Chart) getChartFromCache(uuid); + } + + if (chart != null) + return chart; + + log.info("Chart not in cache yet."); + chart = new VerticalProfileChart( + chartLables, + chartTheme, + parameters, + measurements, + result, + dates, + locale + ); + chart.generateChart(); + + if (CACHE_CHART) { + log.info("Put chart into cache."); + purifyChart(chart, uuid); + } + + return chart; } /**
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/verticalcrosssection/VerticalCrossSectionOutputTransition.java Thu Nov 19 17:54:18 2009 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/transition/profile/verticalcrosssection/VerticalCrossSectionOutputTransition.java Fri Nov 20 13:51:14 2009 +0000 @@ -9,15 +9,19 @@ import java.io.UnsupportedEncodingException; import java.util.Collection; import java.util.Iterator; +import java.util.Locale; import org.apache.log4j.Logger; +import org.jfree.chart.ChartTheme; + import au.com.bytecode.opencsv.CSVWriter; import com.vividsolutions.jts.geom.Point; import com.vividsolutions.jts.io.ParseException; import com.vividsolutions.jts.io.WKTReader; +import de.intevation.gnv.chart.Chart; import de.intevation.gnv.chart.ChartLabels; import de.intevation.gnv.chart.ChartStyle; import de.intevation.gnv.chart.VerticalCrossSectionChartFactory; @@ -51,12 +55,58 @@ super.domainLable = "Depth [m]"; } + + protected Chart getChart( + ChartLabels chartLables, + ChartTheme chartTheme, + Collection parameters, + Collection measurements, + Collection result, + Collection dates, + Locale locale, + String uuid + ) { + Chart chart = null; + + if (CACHE_CHART) { + log.info("Try to get verticalcrosssection chart from cache."); + chart = (Chart) getChartFromCache(uuid); + } + + if (chart != null) + return chart; + + log.info("Chart not in cache yet."); + + log.warn("This sort of chart is not implemented yet."); + /* TODO Implement a special chart for this sort of charts. + chart = new VerticalProfileChart( + chartLables, + chartTheme, + parameters, + measurements, + result, + dates, + locale + ); + chart.generateChart(); + + if (CACHE_CHART) { + log.info("Put chart into cache."); + purifyChart(chart, uuid); + } + */ + + return chart; + } + /** * @see de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition#createChart(java.io.OutputStream, * java.util.Collection, java.util.Collection, java.lang.String, * de.intevation.gnv.chart.ChartStyle, * de.intevation.gnv.chart.ChartLabels) */ + /* @Override protected void createChart(OutputStream outputStream, Collection<KeyValueDescibeData> parameters, @@ -69,6 +119,7 @@ chartStyle, parameters, measurements, dates, outputStream, this .getChartResult(uuid)); } + */ /** * @see de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition#getStatisticsGenerator()
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java Thu Nov 19 17:54:18 2009 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java Fri Nov 20 13:51:14 2009 +0000 @@ -12,6 +12,7 @@ import java.util.Collection; import java.util.Iterator; import java.util.List; +import java.util.Locale; import javax.imageio.ImageIO; import javax.xml.transform.Transformer; @@ -28,16 +29,19 @@ import org.w3c.dom.Node; import org.w3c.dom.NodeList; +import org.jfree.chart.ChartTheme; + import au.com.bytecode.opencsv.CSVWriter; import de.intevation.artifactdatabase.Config; import de.intevation.artifactdatabase.XMLUtils; import de.intevation.artifacts.CallMeta; import de.intevation.artifacts.PreferredLocale; import de.intevation.gnv.artifacts.ressource.RessourceFactory; -import de.intevation.gnv.chart.TestChart; +import de.intevation.gnv.chart.Chart; import de.intevation.gnv.chart.ChartFactory; import de.intevation.gnv.chart.ChartLabels; import de.intevation.gnv.chart.ChartStyle; +import de.intevation.gnv.chart.AbstractXYLineChart; import de.intevation.gnv.chart.TimeSeriesChart; import de.intevation.gnv.chart.exception.TechnicalChartException; import de.intevation.gnv.exports.DefaultExport; @@ -70,6 +74,9 @@ */ public class TimeSeriesOutputTransition extends OutputTransitionBase { + protected static final boolean CACHE_CHART = + Boolean.parseBoolean(System.getProperty("cache.chart", "false")); + /** * The UID of this Class */ @@ -80,8 +87,7 @@ */ private static Logger log = Logger .getLogger(TimeSeriesOutputTransition.class); - - + private static List<TimeGap> timeGapDefinitions = null; protected String domainLable = "Zeit [UTC]"; @@ -352,17 +358,82 @@ * @throws IOException * @throws TechnicalChartException */ - protected void createChart(OutputStream outputStream, - Collection<KeyValueDescibeData> parameters, - Collection<KeyValueDescibeData> measurements, - Collection<KeyValueDescibeData> dates, - ChartStyle chartStyle, ChartLabels chartLables, - String uuid) throws IOException, - TechnicalChartException { - ChartFactory chartFactory = new ChartFactory(); - chartFactory.createSimpleTimeSeriesChart(chartLables, chartStyle, - parameters, measurements, outputStream, this - .getChartResult(uuid),timeGapDefinitions); + protected void createChart( + OutputStream outputStream, + Collection parameters, + Collection measurements, + Collection dates, + ChartStyle chartStyle, + ChartLabels chartLables, + String uuid + ) + throws IOException, TechnicalChartException + { + log.debug("Create chart."); + Chart chart = getChart( + chartLables, + null, // ChartTheme + parameters, + measurements, + getChartResult(uuid), + timeGapDefinitions, + null, // Locale + uuid + ); + + if (chart == null) { + log.error("Could not initialize chart."); + return; + } + + // TODO generic format + Dimension dim = chartStyle.getChartSize(); + String format = "PNG"; + int width = new Double(dim.getWidth()).intValue(); + int height = new Double(dim.getHeight()).intValue(); + + log.debug("export chart as " + format + " in " + width + "x" + height); + ImageIO.write(chart.exportPNG(width, height), format, outputStream); + } + + protected Chart getChart( + ChartLabels chartLables, + ChartTheme chartTheme, + Collection parameters, + Collection measurements, + Collection result, + Collection dates, + Locale locale, + String uuid + ) { + Chart chart = null; + + if (CACHE_CHART) { + log.info("Try to get timeseries chart from cache."); + chart = (Chart) getChartFromCache(uuid); + } + + if (chart != null) + return chart; + + log.info("Chart not in cache yet."); + chart = new TimeSeriesChart( + chartLables, + null, + parameters, + measurements, + result, + dates, + null + ); + chart.generateChart(); + + if (CACHE_CHART) { + log.info("Put chart into cache."); + purifyChart(chart, uuid); + } + + return chart; } protected ChartStyle creatStyle(int witdh, int height) {