public InputStream getContents(PackagePart corePart) throws IOException, InvalidFormatException {
PackageRelationshipCollection prc =
corePart.getRelationshipsByType(_relation);
Iterator<PackageRelationship> it = prc.iterator();
if(it.hasNext()) {
PackageRelationship rel = it.next();
PackagePartName relName = PackagingURIHelper.createPartName(rel.getTargetURI());
PackagePart part = corePart.getPackage().getPart(relName);
return part.getInputStream();
}
log.log(POILogger.WARN, "No part " + _defaultName + " found");
return null;