Example usage for org.jfree.data.xy XYSeriesCollection getY

Introduction

In this page you can find the example usage for org.jfree.data.xy XYSeriesCollection getY.

Prototype

@Override
public Number getY(int series, int index) 

Source Link

Document

Returns the y-value for the specified series and item.

Usage

From source file:org.pentaho.platform.uifoundation.chart.XYSeriesCollectionChartComponent.java

@Override
public Document getXmlContent() {

    // Create a document that describes the result
    Document result = DocumentHelper.createDocument();
    IPentahoRequestContext requestContext = PentahoRequestContextHolder.getRequestContext();
    String contextPath = requestContext.getContextPath();

    setXslProperty("baseUrl", contextPath + "/"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    String mapName = "chart" + AbstractChartComponent.chartCount++; //$NON-NLS-1$
    Document chartDefinition = jcrHelper.getSolutionDocument(definitionPath, RepositoryFilePermission.READ);

    if (chartDefinition == null) {
        Element errorElement = result.addElement("error"); //$NON-NLS-1$
        errorElement.addElement("title").setText( //$NON-NLS-1$
                Messages.getInstance().getString("ABSTRACTCHARTEXPRESSION.ERROR_0001_ERROR_GENERATING_CHART")); //$NON-NLS-1$
        String message = Messages.getInstance().getString("CHARTS.ERROR_0001_CHART_DEFINIION_MISSING", //$NON-NLS-1$
                definitionPath);//from w  ww  .  j a v  a  2s . c o  m
        errorElement.addElement("message").setText(message); //$NON-NLS-1$
        error(message);
        return result;
    }
    // create a pie definition from the XML definition
    dataDefinition = createChart(chartDefinition);

    if (dataDefinition == null) {
        Element errorElement = result.addElement("error"); //$NON-NLS-1$
        errorElement.addElement("title").setText( //$NON-NLS-1$
                Messages.getInstance().getString("ABSTRACTCHARTEXPRESSION.ERROR_0001_ERROR_GENERATING_CHART")); //$NON-NLS-1$
        String message = Messages.getInstance().getString("CHARTS.ERROR_0002_CHART_DATA_MISSING", actionPath); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        errorElement.addElement("message").setText(message); //$NON-NLS-1$
        // System .out.println( result.asXML() );
        return result;
    }

    // create an image for the dial using the JFreeChart engine
    PrintWriter printWriter = new PrintWriter(new StringWriter());
    // we'll dispay the title in HTML so that the dial image does not have
    // to
    // accommodate it
    String chartTitle = ""; //$NON-NLS-1$
    try {
        if (width == -1) {
            width = Integer.parseInt(chartDefinition.selectSingleNode("/chart/width").getText()); //$NON-NLS-1$
        }
        if (height == -1) {
            height = Integer.parseInt(chartDefinition.selectSingleNode("/chart/height").getText()); //$NON-NLS-1$
        }
    } catch (Exception e) {
        // go with the default
    }
    if (chartDefinition.selectSingleNode("/chart/" + AbstractChartComponent.URLTEMPLATE_NODE_NAME) != null) { //$NON-NLS-1$
        urlTemplate = chartDefinition.selectSingleNode("/chart/" + AbstractChartComponent.URLTEMPLATE_NODE_NAME) //$NON-NLS-1$
                .getText();
    }

    if (chartDefinition.selectSingleNode("/chart/paramName") != null) { //$NON-NLS-1$
        paramName = chartDefinition.selectSingleNode("/chart/paramName").getText(); //$NON-NLS-1$
    }

    Element root = result.addElement("charts"); //$NON-NLS-1$
    XYSeriesCollection chartDataDefinition = (XYSeriesCollection) dataDefinition;
    if (chartDataDefinition.getSeriesCount() > 0) {
        // create temporary file names
        String[] tempFileInfo = createTempFile();
        String fileName = tempFileInfo[AbstractChartComponent.FILENAME_INDEX];
        String filePathWithoutExtension = tempFileInfo[AbstractChartComponent.FILENAME_WITHOUT_EXTENSION_INDEX];

        ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
        JFreeChartEngine.saveChart(chartDataDefinition, chartTitle, "", filePathWithoutExtension, width, height, //$NON-NLS-1$
                JFreeChartEngine.OUTPUT_PNG, printWriter, info, this);
        applyOuterURLTemplateParam();
        populateInfo(info);
        Element chartElement = root.addElement("chart"); //$NON-NLS-1$
        chartElement.addElement("mapName").setText(mapName); //$NON-NLS-1$
        chartElement.addElement("width").setText(Integer.toString(width)); //$NON-NLS-1$
        chartElement.addElement("height").setText(Integer.toString(height)); //$NON-NLS-1$
        for (int row = 0; row < chartDataDefinition.getSeriesCount(); row++) {
            for (int column = 0; column < chartDataDefinition.getItemCount(row); column++) {
                Number value = chartDataDefinition.getY(row, column);
                Comparable rowKey = chartDataDefinition.getSeriesKey(row);
                Number columnKey = chartDataDefinition.getX(row, column);
                Element valueElement = chartElement.addElement("value2D"); //$NON-NLS-1$
                valueElement.addElement("value").setText(value.toString()); //$NON-NLS-1$
                valueElement.addElement("row-key").setText(rowKey.toString()); //$NON-NLS-1$
                valueElement.addElement("column-key").setText(columnKey.toString()); //$NON-NLS-1$
            }
        }
        String mapString = ImageMapUtilities.getImageMap(mapName, info);
        chartElement.addElement("imageMap").setText(mapString); //$NON-NLS-1$
        chartElement.addElement("image").setText(fileName); //$NON-NLS-1$
    }
    return result;
}

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