Example usage for org.apache.poi.poifs.filesystem Ole10Native writeOut

Introduction

In this page you can find the example usage for org.apache.poi.poifs.filesystem Ole10Native writeOut.

Prototype

public void writeOut(OutputStream out) throws IOException 

Source Link

Document

Have the contents printer out into an OutputStream, used when writing a file back out to disk (Normally, atom classes will keep their bytes around, but non atom classes will just request the bytes from their children, then chuck on their header and return)

Usage

From source file:com.orange.ocara.model.export.docx.AuditDocxExporter.java

License:Mozilla Public License

/**
 * Create OleObject using a sample./* w  ww.j  av a 2s . c  o m*/
 *
 * @param from File to embed
 * @param to   Destination file
 */
private void createOleObject(File from, File to) throws IOException, Ole10NativeException {
    File existingOleObject = new File(templateDirectory, "word/embeddings/oleObject.bin");

    OutputStream os = null;
    try {
        // When
        POIFSFileSystem fs = new POIFSFileSystem(FileUtils.openInputStream(existingOleObject));

        fs.getRoot().getEntry(Ole10Native.OLE10_NATIVE).delete();

        Ole10Native ole = new Ole10Native(from.getName(), from.getName(), from.getName(),
                IOUtils.toByteArray(FileUtils.openInputStream(from)));

        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        ole.writeOut(stream);

        fs.getRoot().createDocument(Ole10Native.OLE10_NATIVE, new ByteArrayInputStream(stream.toByteArray()));

        os = FileUtils.openOutputStream(to);
        fs.writeFilesystem(os);

    } finally {
        IOUtils.closeQuietly(os);
    }
}

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From source file:com.vodafone.poms.ii.helpers.ExportManager.java

private static String addFile(XSSFSheet sh, String filePath, double oleId)
        throws IOException, InvalidFormatException {
    File file = new File(filePath);
    FileInputStream fin = new FileInputStream(file);
    byte[] data;//from  w  ww. j  a  v  a  2 s  .c  o m
    data = new byte[fin.available()];
    fin.read(data);
    Ole10Native ole10 = new Ole10Native(file.getAbsolutePath(), file.getAbsolutePath(), file.getAbsolutePath(),
            data);

    ByteArrayOutputStream bos = new ByteArrayOutputStream(500);
    ole10.writeOut(bos);

    POIFSFileSystem poifs = new POIFSFileSystem();
    poifs.getRoot().createDocument(Ole10Native.OLE10_NATIVE, new ByteArrayInputStream(bos.toByteArray()));

    poifs.getRoot().setStorageClsid(ClassID.OLE10_PACKAGE);

    final PackagePartName pnOLE = PackagingURIHelper
            .createPartName("/xl/embeddings/oleObject" + oleId + Math.random() + ".bin");
    final PackagePart partOLE = sh.getWorkbook().getPackage().createPart(pnOLE,
            "application/vnd.openxmlformats-officedocument.oleObject");
    PackageRelationship prOLE = sh.getPackagePart().addRelationship(pnOLE, TargetMode.INTERNAL,
            POIXMLDocument.OLE_OBJECT_REL_TYPE);
    OutputStream os = partOLE.getOutputStream();
    poifs.writeFilesystem(os);
    os.close();
    poifs.close();

    return prOLE.getId();

}

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