Examples with DataSource org.xwiki.rendering.internal.macro.chart.source.DataSource used on opensource projects

Example 1 with DataSource

use of org.xwiki.rendering.internal.macro.chart.source.DataSource in project xwiki-platform by xwiki.

the class ChartMacro method generateChart.

/**
 * Builds the chart image according to the specifications passed in.
 *
 * @param parameters the macro parameters
 * @param content the macro content
 * @param context the macro transformation context, used for example to find out the current document reference
 * @throws MacroExecutionException if an error occurs while generating / saving the chart image
 */
private void generateChart(ChartMacroParameters parameters, String content, MacroTransformationContext context) throws MacroExecutionException {
    String source = computeSource(parameters.getSource(), content);
    DataSource dataSource;
    try {
        dataSource = this.componentManager.getInstance(DataSource.class, source);
    } catch (ComponentLookupException e) {
        throw new MacroExecutionException(String.format("Invalid source parameter [%s]", parameters.getSource()), e);
    }
    Map<String, String> sourceParameters = getSourceParameters(parameters, source);
    dataSource.buildDataset(content, sourceParameters, context);
    try {
        this.imageWriter.writeImage(new ImageId(parameters), this.chartGenerator.generate(dataSource.getChartModel(), sourceParameters));
    } catch (ChartGeneratorException e) {
        throw new MacroExecutionException("Error while rendering chart", e);
    }
}