Apache POI - How to retieve "rect" object inside "pict" object

Harpreet :

I am trying to convert a Word document to HTML using Apache POI. I have a Word document that has a horizontal line after a paragraph. The OOXML for the horizontal line looks like this:

          <w:p w14:paraId="721E1052" w14:textId="05637367" w:rsidR="002D1248" w:rsidRPr="00BB3E82" w:rsidRDefault="00B3113F" w:rsidP="00797596">
            <w:pPr>
              <w:rPr>
                <w:rFonts w:eastAsia="Times New Roman" w:cs="Courier New"/>
                <w:snapToGrid w:val="0"/>
                <w:color w:val="000000"/>
                <w:lang w:eastAsia="fi-FI"/>
              </w:rPr>
            </w:pPr>
            <w:r>
              <w:rPr>
                <w:rFonts w:eastAsia="Times New Roman" w:cs="Courier New"/>
                <w:snapToGrid w:val="0"/>
                <w:color w:val="000000"/>
                <w:lang w:eastAsia="fi-FI"/>
              </w:rPr>
              <w:pict w14:anchorId="534EEFD0">
                <v:rect id="_x0000_i1025" style="width:0;height:1.5pt" o:hralign="center" o:hrstd="t" o:hr="t" fillcolor="#a0a0a0" stroked="f"/>
              </w:pict>
            </w:r>
          </w:p>

Corresponding to this horizontal line, I want to add a HR tag in HTML. However, I am not able to retrieve the "rect" element inside "pict". This is what I have tried so far:

List<org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPicture> pics = run.getCTR().getPictList();
        if(pics!=null) {
            log.debug("Size of pics = "+pics.size());
            for (org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPicture pic : pics) {
                Node picNode = pic.getDomNode();
                CTGroup ctGroup = CTGroup.Factory.parse(picNode);
                if(ctGroup!=null) {
                    log.debug("Size of rects= "+ctGroup.getRectList().size());
                }
            }

The above code gives: Size of pics = 1 Size of rects= 0 I am not sure why that is the case. Any help in understanding how to retrieve the "rect" object would be really appreciated. Thank you.

Axel Richter :

You cannot parse a com.microsoft.schemas.vml.CTGroup element from a org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPicture dom node.

But all ooxml-schemas objects inherit from org.apache.xmlbeans.XmlObject. So they can select children by element URI and element local name using XmlObject.selectChildren. What we need to know is that the name space URI for com.microsoft.schemas.vml.* is "urn:schemas-microsoft-com:vml".

Example:

import java.io.FileInputStream;

import org.apache.poi.xwpf.usermodel.*;

import org.apache.xmlbeans.XmlObject;

import java.util.List;

public class WordReadCTPictureContent {

 public static void main(String[] args) throws Exception {

  String inFilePath = "./HRBetweenParagraphs.docx";

  XWPFDocument document = new XWPFDocument(new FileInputStream(inFilePath));

  for (XWPFParagraph paragraph : document.getParagraphs()) {
   for (XWPFRun run : paragraph.getRuns()) {

    List<org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPicture> pics = run.getCTR().getPictList();
    System.out.println("Size of pics = " + pics.size());
    for (org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPicture pic : pics) {
     //select com.microsoft.schemas.vml.CTRect children by elementUri and elementLocalName
     XmlObject[] rects = pic.selectChildren("urn:schemas-microsoft-com:vml", "rect");
     System.out.println("Count of rects = " + rects.length);
     for (XmlObject obj : rects) {
      com.microsoft.schemas.vml.CTRect rect = (com.microsoft.schemas.vml.CTRect)obj;
      //now we can work with found com.microsoft.schemas.vml.CTRect
      System.out.println("Id of found rect = " + rect.getId());
     }

    }

   }
  }

  document.close();
 }

}