tim@64: /**
tim@64:  *
tim@64:  */
tim@64: package de.intevation.gnv.transition.timeseries;
tim@64: 
tim@68: import java.awt.Color;
tim@68: import java.awt.Dimension;
tim@68: import java.io.IOException;
tim@73: import java.io.OutputStream;
tim@68: import java.util.Collection;
tim@68: import java.util.Iterator;
tim@68: 
tim@68: import org.apache.log4j.Logger;
tim@68: 
tim@68: import de.intevation.gnv.chart.ChartFactory;
tim@68: import de.intevation.gnv.chart.ChartLabels;
tim@68: import de.intevation.gnv.chart.ChartStyle;
tim@68: import de.intevation.gnv.chart.exception.TechnicalChartException;
tim@68: import de.intevation.gnv.geobackend.base.Result;
tim@64: import de.intevation.gnv.transition.OutputTransitionBase;
tim@68: import de.intevation.gnv.transition.describedata.KeyValueDescibeData;
tim@81: import de.intevation.gnv.transition.describedata.NamedCollection;
tim@68: import de.intevation.gnv.transition.exception.TransitionException;
tim@64: 
tim@64: /**
tim@64:  * @author Tim Englich <tim.englich@intevation.de>
tim@64:  *
tim@64:  */
tim@64: public class TimeSeriesOutputTransition extends OutputTransitionBase{
tim@86: 
tim@86:     /**
tim@86:      * The UID of this Class
tim@86:      */
tim@86:     private static final long serialVersionUID = 4178407570503098858L;
tim@68:     
tim@68:     /**
tim@68:      * the logger, used to log exceptions and additonaly information
tim@68:      */
tim@68:     private static Logger log = Logger.getLogger(TimeSeriesOutputTransition.class);
tim@86:     
tim@86:     protected String domainLable = "Zeit [UTC]"; 
tim@86:     
tim@64:     /**
tim@64:      * Constructor
tim@64:      */
tim@64:     public TimeSeriesOutputTransition() {
tim@64:         super();
tim@64:     }
tim@64: 
tim@64:     /**
tim@64:      * @see de.intevation.gnv.transition.Transition#validate()
tim@64:      */
tim@64:     public boolean validate() {
tim@64:         return true;
tim@64:     }
tim@64: 
tim@73:    /**
tim@73:     * @see de.intevation.gnv.transition.OutputTransition#out(java.lang.String, java.io.OutputStream)
tim@73:     */
tim@73:     public void out(String outputMode, OutputStream outputStream) throws TransitionException {
tim@68:         log.debug("TimeSeriesOutputTransition");
tim@68:         try {
tim@86:             this.advance(); 
tim@68:             Collection<KeyValueDescibeData> parameters = this.getParameters();
tim@68:             Collection<KeyValueDescibeData> measurements = this.getMeasurements();
tim@68:             ChartStyle chartStyle = this.creatStyle(600,400);
tim@86:             ChartLabels chartLables = new ChartLabels(this.getSelectedFeatureName(),this.domainLable);
tim@86:             this.createChart(outputStream, parameters, measurements,
tim@82:                     chartStyle, chartLables);
tim@68:         } catch (IOException e) {
tim@68:             log.error(e,e);
tim@68:             throw new TransitionException(e);
tim@68:         } catch (TechnicalChartException e) {
tim@68:             log.error(e,e);
tim@68:             throw new TransitionException(e);
tim@68:         }
tim@68:     }
tim@68: 
tim@86:     
tim@86:     protected String getSelectedFeatureName(){
tim@86:         String collectionName = "featureid"; // TODO: Konfigurierbar machen
tim@86:         Collection<KeyValueDescibeData> values =  this.getCollection(collectionName);
tim@86:         if (values != null){
tim@86:             Iterator<KeyValueDescibeData> it = values.iterator();
tim@86:             while(it.hasNext()){
tim@86:                 KeyValueDescibeData data = it.next();
tim@86:                 if (data.isSelected()){
tim@86:                     return data.getValue();
tim@86:                 }
tim@86:             }
tim@86:         }
tim@86:         return null;
tim@86:     }
tim@86:     /**
tim@86:      * @param outputStream
tim@86:      * @param parameters
tim@86:      * @param measurements
tim@86:      * @param timeSeriesName
tim@86:      * @param chartStyle
tim@86:      * @param chartLables
tim@86:      * @throws IOException
tim@86:      * @throws TechnicalChartException
tim@86:      */
tim@86:     protected void createChart(OutputStream outputStream,
tim@86:             Collection<KeyValueDescibeData> parameters,
tim@86:             Collection<KeyValueDescibeData> measurements,
tim@86:             ChartStyle chartStyle, ChartLabels chartLables) throws IOException,
tim@86:             TechnicalChartException {
tim@86:         ChartFactory chartFactory = new ChartFactory();
tim@86:         chartFactory.createSimpleTimeSeriesChart(chartLables, chartStyle,
tim@86:                                                  parameters, measurements, 
tim@86:                                                  outputStream, this.chartResult);
tim@86:     }
tim@82: 
tim@68:     /**
tim@68:      * @see de.intevation.gnv.transition.TransitionBase#purifyResult(java.util.Collection)
tim@68:      */
tim@68:     @Override
tim@68:     protected void purifyResult(Collection<Result> result) {
tim@68:         this.chartResult = result;
tim@68:     }
tim@68:     
tim@68:     protected ChartStyle creatStyle(int witdh, int height){
tim@68:         // TODO Konfigurierbar machen
tim@68:         de.intevation.gnv.chart.Insets lInsets = new de.intevation.gnv.chart.Insets(5d, 5d, 5d, 5d);
tim@68:         Dimension lChartSize = new Dimension(witdh, height);
tim@68:         return new ChartStyle(Color.white, new Color(230, 230, 230), Color.white, Color.white, true, true, lInsets, lChartSize);
tim@68:     }
tim@68:     
tim@68:     protected Collection<KeyValueDescibeData> getParameters(){
tim@86:         String collectionName = "parameterid"; // TODO: Konfigurierbar machen
tim@82:         return this.getCollection(collectionName);
tim@64:     }
tim@68:     
tim@68:     protected Collection<KeyValueDescibeData> getMeasurements(){
tim@86:         String collectionName = "measurementid"; // TODO: Konfigurierbar machen
tim@82:         return this.getCollection(collectionName);
tim@82:     }
tim@82: 
tim@82:     /**
tim@82:      * @param collectionName
tim@82:      * @return
tim@82:      */
tim@82:     protected Collection<KeyValueDescibeData> getCollection(
tim@82:             String collectionName) {
tim@68:         Iterator<Object> it = this.descibeData.iterator();
tim@68:         while (it.hasNext()){
tim@68:            
tim@68:            Object o = it.next();
tim@82:            
tim@81:            if (o instanceof NamedCollection<?>){
tim@81:                NamedCollection<KeyValueDescibeData> nc = (NamedCollection<KeyValueDescibeData>)o;
tim@86:                if (nc.getName().equals(collectionName)){
tim@81:                    return nc;
tim@81:                }
tim@68:            }
tim@68:         }
tim@68:         return null;
tim@68:     }
tim@64: }