dive4elements/gnv-client: gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java comparison

comparison gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java @ 303:9ba2cf8cad8d

Export format of charts is related to mime-type. gnv-artifacts/trunk@358 c6561f87-3c4e-4783-a992-168aeb5c3f6f

author	Ingo Weinzierl <ingo.weinzierl@intevation.de>
date	Fri, 20 Nov 2009 15:45:25 +0000
parents	3ea030aafe65
children	a16d337c5678

comparison

equal deleted inserted replaced

-:dc2713a3eaa7
+:9ba2cf8cad8d
 public class TimeSeriesOutputTransition extends OutputTransitionBase {
 protected static final boolean CACHE_CHART =
 Boolean.parseBoolean(System.getProperty("cache.chart", "false"));
+protected static final String[] IMG_EXPORT_FORMAT = {
+"PNG", "JPEG", "GIF"
+};
 /**
 * The UID of this Class
 */
 private static final long serialVersionUID = 4178407570503098858L;
 /**
 * @see de.intevation.gnv.transition.OutputTransition#out(java.lang.String,
 *      java.util.Collection, java.io.OutputStream, java.lang.String,
 *      de.intevation.artifacts.CallMeta)
 */
-public void out(Document format, Collection<InputData> inputData,
+public void out(
-OutputStream outputStream, String uuid, CallMeta callMeta)
+Document format,
-throws TransitionException {
+Collection<InputData> inputData,
+OutputStream outputStream,
+String uuid,
+CallMeta callMeta
+) throws TransitionException
+{
 log.debug("TimeSeriesOutputTransition.out");
-String outputMode = Config.getStringXPath(format, "action/out/@name");
+String outputMode = Config.getStringXPath(
+format,
+"action/out/@name"
+);
+String mimeType   = Config.getStringXPath(
+format,
+"action/out/mime-type/@value"
+);
 try {
 this.advance(uuid, callMeta); // TODO This hsould only be done if it is nessessary
 if (outputMode.equalsIgnoreCase("chart")) {
 log.debug("Chart will be generated.");
 int chartWidth = 600;
 int chartHeight = 400;
 try {
 Collection<KeyValueDescibeData> dates = this.getDates(uuid);
 ChartStyle chartStyle = this
 .creatStyle(chartWidth, chartHeight);
 ChartLabels chartLables = new ChartLabels(this.getFisName(callMeta.getLanguages())+" "+this
 .getSelectedFeatureName(uuid), this.domainLable);
-this.createChart(outputStream, parameters, measurements,dates,
-chartStyle, chartLables, uuid);
+String exportFormat = getExportFormat(mimeType);
+this.createChart(
+outputStream,
+parameters,
+measurements,
+dates,
+chartStyle,
+chartLables,
+uuid,
+exportFormat
+);
 } else if (outputMode.equalsIgnoreCase("csv")) {
 log.debug("CSV-File will be generated.");
 Collection<Result> chartResult = this.getChartResult(uuid);
 this.createCSV(outputStream, chartResult);
 } else if (outputMode.equalsIgnoreCase("statistics")) {
 log.error(e, e);
 throw new TransitionException(e);
 }
 }
+protected String getExportFormat(String mime) {
+for(int i = 0; i < IMG_EXPORT_FORMAT.length; i++) {
+if (mime.trim().toUpperCase().indexOf(IMG_EXPORT_FORMAT[i]) > 0)
+return IMG_EXPORT_FORMAT[i];
+}
+// no format found relating to mimeType, default export as PNG
+return IMG_EXPORT_FORMAT[0];
+}
 /**
 * @param outputStream
 * @param chartResult
 * @throws UnsupportedEncodingException
 * @throws IOException
 Collection   parameters,
 Collection   measurements,
 Collection   dates,
 ChartStyle   chartStyle,
 ChartLabels  chartLables,
-String       uuid
+String       uuid,
+String       exportFormat
 )
 throws IOException, TechnicalChartException
 {
 log.debug("Create chart.");
 Chart chart = getChart(
 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);
+log.debug(
-ImageIO.write(chart.exportPNG(width, height), format, outputStream);
+"export chart as " + exportFormat +
+" in " + width + "x" + height
+);
+ImageIO.write(
+chart.exportImage(width, height),
+exportFormat,
+outputStream
+);
 }
 protected Chart getChart(
 ChartLabels  chartLables,
 ChartTheme   chartTheme,

Mercurial > dive4elements > gnv-client

comparison gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java @ 303:9ba2cf8cad8d