poi/src/scratchpad/testcases/org/apache/poi/hslf/model/TestOleEmbedding.java

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package org.apache.poi.hslf.model;

import static org.junit.Assert.assertArrayEquals;

import java.awt.geom.Rectangle2D;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.InputStream;

import junit.framework.TestCase;

import org.apache.poi.POIDataSamples;
import org.apache.poi.hslf.HSLFSlideShow;
import org.apache.poi.hslf.usermodel.ObjectData;
import org.apache.poi.hslf.usermodel.PictureData;
import org.apache.poi.hslf.usermodel.SlideShow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.util.IOUtils;

public final class TestOleEmbedding extends TestCase {
    private static POIDataSamples _slTests = POIDataSamples.getSlideShowInstance();
    /**
     * Tests support for OLE objects.
     *
     * @throws Exception if an error occurs.
     */
    public void testOleEmbedding2003() throws Exception {
        HSLFSlideShow slideShow = new HSLFSlideShow(_slTests.openResourceAsStream("ole2-embedding-2003.ppt"));
        // Placeholder EMFs for clients that don't support the OLE components.
        PictureData[] pictures = slideShow.getPictures();
        assertEquals("Should be two pictures", 2, pictures.length);
        //assertDigestEquals("Wrong data for picture 1", "8d1fbadf4814f321bb1ccdd056e3c788", pictures[0].getData());
        //assertDigestEquals("Wrong data for picture 2", "987a698e83559cf3d38a0deeba1cc63b", pictures[1].getData());

        // Actual embedded objects.
        ObjectData[] objects = slideShow.getEmbeddedObjects();
        assertEquals("Should be two objects", 2, objects.length);
        //assertDigestEquals("Wrong data for objecs 1", "0d1fcc61a83de5c4894dc0c88e9a019d", objects[0].getData());
        //assertDigestEquals("Wrong data for object 2", "b323604b2003a7299c77c2693b641495", objects[1].getData());
    }

    public void testOLEShape() throws Exception {
        SlideShow ppt = new SlideShow(_slTests.openResourceAsStream("ole2-embedding-2003.ppt"));

        Slide slide = ppt.getSlides()[0];
        HSLFShape[] sh = slide.getShapes();
        int cnt = 0;
        for (int i = 0; i < sh.length; i++) {
            if(sh[i] instanceof OLEShape){
                cnt++;
                OLEShape ole = (OLEShape)sh[i];
                ObjectData data = ole.getObjectData();
                if("Worksheet".equals(ole.getInstanceName())){
                    //Voila! we created a workbook from the embedded OLE data
                    HSSFWorkbook wb = new HSSFWorkbook(data.getData());
                    HSSFSheet sheet = wb.getSheetAt(0);
                    //verify we can access the xls data
                    assertEquals(1, sheet.getRow(0).getCell(0).getNumericCellValue(), 0);
                    assertEquals(1, sheet.getRow(1).getCell(0).getNumericCellValue(), 0);
                    assertEquals(2, sheet.getRow(2).getCell(0).getNumericCellValue(), 0);
                    assertEquals(3, sheet.getRow(3).getCell(0).getNumericCellValue(), 0);
                    assertEquals(8, sheet.getRow(5).getCell(0).getNumericCellValue(), 0);
                } else if ("Document".equals(ole.getInstanceName())){
                    //creating a HWPF document
                    HWPFDocument doc = new HWPFDocument(data.getData());
                    String txt = doc.getRange().getParagraph(0).text();
                    assertEquals("OLE embedding is thoroughly unremarkable.\r", txt);
                }
            }

        }
        assertEquals("Expected 2 OLE shapes", 2, cnt);
    }
    
    public void testEmbedding() throws Exception {
    	HSLFSlideShow _hslfSlideShow = HSLFSlideShow.create();
    	SlideShow ppt = new SlideShow(_hslfSlideShow);
    	
    	File pict = POIDataSamples.getSlideShowInstance().getFile("clock.jpg");
    	int pictId = ppt.addPicture(pict, Picture.JPEG);
    	
    	InputStream is = POIDataSamples.getSpreadSheetInstance().openResourceAsStream("Employee.xls");
    	POIFSFileSystem poiData1 = new POIFSFileSystem(is);
    	is.close();
    	
    	int oleObjectId1 = ppt.addEmbed(poiData1);
    	
    	Slide slide1 = ppt.createSlide();
    	OLEShape oleShape1 = new OLEShape(pictId);
    	oleShape1.setObjectID(oleObjectId1);
    	slide1.addShape(oleShape1);
    	oleShape1.setAnchor(new Rectangle2D.Double(100,100,100,100));
    	
    	// add second slide with different order in object creation
    	Slide slide2 = ppt.createSlide();
    	OLEShape oleShape2 = new OLEShape(pictId);

        is = POIDataSamples.getSpreadSheetInstance().openResourceAsStream("SimpleWithImages.xls");
        POIFSFileSystem poiData2 = new POIFSFileSystem(is);
        is.close();
    	
        int oleObjectId2 = ppt.addEmbed(poiData2);

        oleShape2.setObjectID(oleObjectId2);
        slide2.addShape(oleShape2);
        oleShape2.setAnchor(new Rectangle2D.Double(100,100,100,100));
        
    	ByteArrayOutputStream bos = new ByteArrayOutputStream();
    	ppt.write(bos);
    	
    	ppt = new SlideShow(new ByteArrayInputStream(bos.toByteArray()));
    	OLEShape comp = (OLEShape)ppt.getSlides()[0].getShapes()[0];
    	byte compData[] = IOUtils.toByteArray(comp.getObjectData().getData());
    	
    	bos.reset();
    	poiData1.writeFilesystem(bos);
    	byte expData[] = bos.toByteArray();
    	
    	assertArrayEquals(expData, compData);
    	
    }
}