Example usage for org.apache.poi.xslf.usermodel XSLFChart getRelationParts

Introduction

In this page you can find the example usage for org.apache.poi.xslf.usermodel XSLFChart getRelationParts.

Prototype

public final List<RelationPart> getRelationParts() 

Source Link

Document

Returns the list of child relations for this POIXMLDocumentPart

Usage

From source file:com.hp.autonomy.frontend.reports.powerpoint.PowerPointServiceImpl.java

License:MIT License

/**
 * Utility function to write a chart object to a slide based on a template.
 * Creates new copies of referred objects in the chart, e.g. colors1.xml and style1.xml, and writes the Excel
 *   workbook data to new files in the PowerPoint .zip structure.
 * @param pptx the presentation to add to.
 * @param slide the slide to add to.//from   w  ww .j  a  v a  2 s. c  om
 * @param templateChart the original template chart XML reference object from the template.
 * @param modifiedChart the new chart XML object.
 * @param workbook the Excel workbook data corresponding to the chart XML data.
 * @param relId the relation id for the new chart.
 * @throws IOException if there's IO errors working with the chart.
 * @throws InvalidFormatException if there's errors generating new package part names for the new copies of the data.
 */
private static void writeChart(final XMLSlideShow pptx, final XSLFSlide slide, final XSLFChart templateChart,
        final CTChartSpace modifiedChart, final XSSFWorkbook workbook, final String relId)
        throws IOException, InvalidFormatException {
    final OPCPackage opcPackage = pptx.getPackage();
    final PackagePartName chartName = generateNewName(opcPackage,
            templateChart.getPackagePart().getPartName().getURI().getPath());

    final ByteArrayOutputStream baos = new ByteArrayOutputStream();
    XmlOptions xmlOptions = new XmlOptions(DEFAULT_XML_OPTIONS);
    xmlOptions.setSaveSyntheticDocumentElement(
            new QName(CTChartSpace.type.getName().getNamespaceURI(), "chartSpace", "c"));
    modifiedChart.save(baos, xmlOptions);

    final PackagePart chartPart = opcPackage.createPart(chartName, XSLFRelation.CHART.getContentType(), baos);

    slide.getPackagePart().addRelationship(chartName, TargetMode.INTERNAL, XSLFRelation.CHART.getRelation(),
            relId);

    for (final POIXMLDocumentPart.RelationPart part : templateChart.getRelationParts()) {
        final ByteArrayOutputStream partCopy = new ByteArrayOutputStream();
        final URI targetURI = part.getRelationship().getTargetURI();

        final PackagePartName name = generateNewName(opcPackage, targetURI.getPath());

        final String contentType = part.getDocumentPart().getPackagePart().getContentType();

        if ("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet".equals(contentType)) {
            workbook.write(partCopy);
        } else {
            IOUtils.copy(part.getDocumentPart().getPackagePart().getInputStream(), partCopy);
        }

        opcPackage.createPart(name, contentType, partCopy);
        chartPart.addRelationship(name, TargetMode.INTERNAL, part.getRelationship().getRelationshipType());
    }
}

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