JAXBElements and BinaryData

by **fachingw** » Fri Apr 05, 2013 11:12 pm

Hello,

by using TraversalUtil i can get the logical structure of my docx-File, e.g.:
...
org.docx4j.wml.P
org.docx4j.wml.R
org.docx4j.wml.CTObject
org.docx4j.vml.CTShape
org.docx4j.vml.CTImageData
org.docx4j.vml.officedrawing.CTOLEObject
...

But how can i get the actual binary data for CTImageData and CTOLEObject. I can get all MetafileWmfPart, MetafileEmfPart and OleObjectBinaryPart with getParts, but then i don't know which Part belongs to which CTxxx and so the the logical structure is lost.
Is there a way to get the the Part for a JAXBElement or vice versa? I want to extract ether the OLEObject or the Image, but not both.

Thanks
Winfried

by **jason** » Fri Apr 05, 2013 11:30 pm

Step 1: From the element (CTImageData or CTOLEObject), you get the "relationship ID".

Step 2: Then you get the relationships part for the part containing that element, and look up the relationship by the relationship ID from step 1.

Step 3: The relationship has a target; the target is the part you want.

For an example of this in action, see org.docx4j.model.images.WordXmlPictureE10.createWordXmlPictureFromE10

hope this helps

by **fachingw** » Sat Apr 06, 2013 12:00 am

Hello Jason,

i tried your suggestion, but CTImageData geRelid() gives me null, and in CTOLEObject there is no getRelid(), only a getShapeid()?:

Code: Select all: ... org.docx4j.wml.P org.docx4j.wml.R org.docx4j.wml.CTObject org.docx4j.vml.CTShape org.docx4j.vml.CTImageData Id: rId7 RelID=null org.docx4j.vml.officedrawing.CTOLEObject Id: rId8 ShapeID=_x0000_i1027 ...

This is my TraversalUtil.Callback:

Code: Select all: class MyAnyCallback implements TraversalUtil.Callback { String indent = ""; public List<Object> apply(Object o) { String cl=o.getClass().getName(); System.out.println(indent + cl); if (o instanceof org.docx4j.vml.CTImageData) { org.docx4j.vml.CTImageData x=(org.docx4j.vml.CTImageData)o; System.out.println(indent+"Id: "+x.getId()+" RelID="+x.getRelid()); } if (o instanceof org.docx4j.vml.officedrawing.CTOLEObject) { org.docx4j.vml.officedrawing.CTOLEObject x=(org.docx4j.vml.officedrawing.CTOLEObject)o; System.out.println(indent+"Id: "+x.getId()+" ShapeID="+x.getShapeID()); } return null; } public boolean shouldTraverse(Object o) { return true; } // Depth first public void walkJAXBElements(Object parent) { indent += " "; List children = getChildren(parent); if (children != null) { for (Object o : children) { // if its wrapped in javax.xml.bind.JAXBElement, get its // value o = XmlUtils.unwrap(o); this.apply(o); if (this.shouldTraverse(o)) { walkJAXBElements(o); } } } indent = indent.substring(0, indent.length() - 2); } public List<Object> getChildren(Object o) { return TraversalUtil.getChildrenImpl(o); } }

Thanks
Winfried

by **jason** » Sat Apr 06, 2013 7:12 am

Please post a short sample docx or the contents of your document.xml

by **fachingw** » Tue Apr 09, 2013 1:38 am

Hello Jason,

I created a sample docx-File using Office and inserted two OLE-Objects using Copy/Paste from Accelrys-Draw. With getParts() i get 2 OleObjectBinaryPart and 2 MetafileEmfPart,
but i don't know which Emf belongs to which OleObject. With TraversalUtil i get the hierarchy of JAXC-Elements and know which CTImageData belongs to which CTOLEObject. So now i just need the connection CTImageData->MetafileEmfPart and CTOLEObject->OleObjectBinaryPart. CTImageData has relid=null, and CTOLEObject has no relid, only a shapeid?

Code: Select all: org.docx4j.wml.P org.docx4j.wml.ProofErr org.docx4j.wml.R org.docx4j.wml.Text org.docx4j.wml.ProofErr org.docx4j.wml.R org.docx4j.wml.Text org.docx4j.wml.P org.docx4j.wml.CTBookmark org.docx4j.wml.CTMarkupRange org.docx4j.wml.P org.docx4j.wml.P org.docx4j.wml.R org.docx4j.wml.Text org.docx4j.wml.P org.docx4j.wml.R org.docx4j.wml.CTObject org.docx4j.vml.CTShapetype org.docx4j.vml.CTStroke org.docx4j.vml.CTFormulas org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTF org.docx4j.vml.CTPath org.docx4j.vml.officedrawing.CTLock org.docx4j.vml.CTShape Id: null org.docx4j.vml.CTImageData Id: rId5 RelID=null org.docx4j.vml.officedrawing.CTOLEObject Id: rId6 ShapeID=_x0000_i1032 org.docx4j.wml.P org.docx4j.wml.P org.docx4j.wml.R org.docx4j.wml.Text org.docx4j.wml.P org.docx4j.wml.R org.docx4j.wml.CTObject org.docx4j.vml.CTShape Id: null org.docx4j.vml.CTImageData Id: rId7 RelID=null org.docx4j.vml.officedrawing.CTOLEObject Id: rId8 ShapeID=_x0000_i1030

Thanks
Winfried

by **jason** » Tue Apr 09, 2013 8:19 am

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

packageorg.docx4j.samples;

importjava.util.ArrayList;
importjava.util.List;

importorg.docx4j.TraversalUtil;
importorg.docx4j.XmlUtils;
importorg.docx4j.TraversalUtil.CallbackImpl;
importorg.docx4j.openpackaging.packages.WordprocessingMLPackage;
importorg.docx4j.openpackaging.parts.Part;
importorg.docx4j.openpackaging.parts.WordprocessingML.MainDocumentPart;
importorg.docx4j.vml.CTImageData;
importorg.docx4j.vml.CTShape;
importorg.docx4j.vml.officedrawing.CTOLEObject;
importorg.docx4j.wml.CTObject;

publicclass OLEObjectFinder {


/**

         * Example of how to find OLEObjects and their related parts

         * 

        <w:object w:dxaOrig="1087" w:dyaOrig="1074">

          <v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">

            <v:stroke joinstyle="miter"/>

            <v:formulas>

              <v:f eqn="if lineDrawn pixelLineWidth 0"/>

              <v:f eqn="sum @0 1 0"/>

              <v:f eqn="sum 0 0 @1"/>

              <v:f eqn="prod @2 1 2"/>

              <v:f eqn="prod @3 21600 pixelWidth"/>

              <v:f eqn="prod @3 21600 pixelHeight"/>

              <v:f eqn="sum @0 0 1"/>

              <v:f eqn="prod @6 1 2"/>

              <v:f eqn="prod @7 21600 pixelWidth"/>

              <v:f eqn="sum @8 21600 0"/>

              <v:f eqn="prod @7 21600 pixelHeight"/>

              <v:f eqn="sum @10 21600 0"/>

            </v:formulas>

            <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/>

            <o:lock v:ext="edit" aspectratio="t"/>

          </v:shapetype>

          <v:shape id="_x0000_i1032" type="#_x0000_t75" style="width:54.35pt;height:53.65pt" o:ole="">

            <v:imagedata r:id="rId5" o:title=""/>

          </v:shape>

          <o:OLEObject Type="Embed" ProgID="MDLDrawOLE.MDLDrawObject.1" ShapeID="_x0000_i1032" DrawAspect="Content" ObjectID="_1426939992" r:id="rId6">

            <o:FieldCodes>\s</o:FieldCodes>

          </o:OLEObject>

        </w:object>     

        

         or 

         

        <w:object w:dxaOrig="1074" w:dyaOrig="992">

          <v:shape id="_x0000_i1030" type="#_x0000_t75" style="width:53.65pt;height:49.6pt" o:ole="">

            <v:imagedata r:id="rId7" o:title=""/>

          </v:shape>

          <o:OLEObject Type="Embed" ProgID="MDLDrawOLE.MDLDrawObject.1" ShapeID="_x0000_i1030" DrawAspect="Content" ObjectID="_1426939993" r:id="rId8">

            <o:FieldCodes>\s</o:FieldCodes>

          </o:OLEObject>

        </w:object>

         

         */
publicstaticvoid main(String[] args)throwsException{

String inputfilepath =System.getProperty("user.dir")+"/OleObject.docx";


                WordprocessingMLPackage wordMLPackage= WordprocessingMLPackage.load(new java.io.File(inputfilepath));

                MainDocumentPart documentPart = wordMLPackage.getMainDocumentPart();


        Finder finder =new Finder(CTObject.class);// <----- change this to suit
new TraversalUtil(documentPart.getContent(), finder);

System.out.println("got "+ finder.results.size()+" of type "+  finder.typeToFind.getName());

for(Object o : finder.results){


                        CTObject object =(CTObject) XmlUtils.unwrap(o);


                        CTOLEObject oleObject = getOLEObject(object);
if(oleObject==null){
System.out.println("No OLEObject in this Object");
}else{

                                Part target = documentPart.getRelationshipsPart().getPart(oleObject.getId());
System.out.println(target.getClass().getName());
// expect org.docx4j.openpackaging.parts.WordprocessingML.OleObjectBinaryPart
}


                        CTShape shape = getShape(object);
if(shape==null){
System.out.println("No Shape in this Object");
}else{

                                CTImageData imageData =(CTImageData)XmlUtils.unwrap(shape.getPathOrFormulasOrHandles().get(0));
// You should make this more robust
if(imageData==null){
System.out.println("No imagedata in this Object");
}else{

                                        Part target = documentPart.getRelationshipsPart().getPart(imageData.getId());
System.out.println(target.getClass().getName());
// expect org.docx4j.openpackaging.parts.WordprocessingML.MetafileEmfPart
}
}
}

}

publicstaticclass Finder extends CallbackImpl {

protected Class<?> typeToFind;

protected Finder(Class<?> typeToFind){
this.typeToFind= typeToFind;
}

public List<Object> results =new ArrayList<Object>();


                        @Override
public List<Object> apply(Object o){

// Adapt as required
if(o.getClass().equals(typeToFind)){

                                        results.add(o);
}
returnnull;
}
}

privatestatic CTOLEObject getOLEObject(CTObject object){

for(Object o : object.getAnyAndAny()){
Object o2 = XmlUtils.unwrap(o);
if(o2 instanceof CTOLEObject)return(CTOLEObject)o2;
}
returnnull;
}

privatestatic CTShape getShape(CTObject object){

for(Object o : object.getAnyAndAny()){
Object o2 = XmlUtils.unwrap(o);
if(o2 instanceof CTShape)return(CTShape)o2;
}
returnnull;
}

}
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JAXBElements and BinaryData

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