private static void addPartsForRels(
List<Alteration> list, List<Relationship> rels, RelationshipsPart rp) throws Docx4JException {
for (Relationship r : rels) {
if (r.getTargetMode() != null && r.getTargetMode().equals("External")) {
log.debug(r.getTarget() + " is external");
// Have everything we need info wise in transmitting the rels part
} else {
list.add(new Alteration(rp, toStorageFormat(rp.getPart(r))));
log.debug("added part: " + r.getTarget());
}
}
}
/**
* @param alteredParts
* @param theseRels
* @throws Docx4JException
*/
private static void addTree(List<Alteration> list, RelationshipsPart rp) throws Docx4JException {
if (rp == null) return;
for (Relationship r : rp.getJaxbElement().getRelationship()) {
if (r.getTargetMode() != null && r.getTargetMode().equals("External")) {
log.debug(r.getTarget() + " is external");
// Have everything we need info wise in transmitting the rels part
} else {
list.add(new Alteration(rp, toStorageFormat(rp.getPart(r))));
log.debug("add tree: " + r.getTarget());
// recurse
Part nextSourcePart = rp.getPart(r);
RelationshipsPart nextRP = nextSourcePart.getRelationshipsPart();
if (nextRP != null) {
list.add(new Alteration(nextSourcePart.getPartName(), toStorageFormat(nextRP)));
addTree(list, nextRP);
}
}
}
}
/**
* Get a Part (except a relationships part), and all its related parts. This can be called
* directly from outside the library, in which case the Part will not be owned by a Package until
* the calling code makes it so.
*
* @param zf
* @param source
* @param unusedZipEntries
* @param pkg
* @param r
* @param resolvedPartUri
* @throws Docx4JException
* @throws InvalidFormatException
*/
private void getPart(OpcPackage pkg, RelationshipsPart rp, Relationship r, ContentTypeManager ctm)
throws Docx4JException, InvalidFormatException, URISyntaxException {
Base source = null;
String resolvedPartUri = null;
if (r.getType().equals(Namespaces.HYPERLINK)) {
// Could be Internal or External
// Example of Internal is w:drawing/wp:inline/wp:docPr/a:hlinkClick
log.info("Encountered (but not loading) hyperlink " + r.getTarget());
return;
} else if (r.getTargetMode() == null || !r.getTargetMode().equals("External")) {
// Usual case
source = rp.getSourceP();
resolvedPartUri =
URIHelper.resolvePartUri(rp.getSourceURI(), new URI(r.getTarget())).toString();
// Now drop leading "/'
resolvedPartUri = resolvedPartUri.substring(1);
// Now normalise it .. ie abc/def/../ghi
// becomes abc/ghi
// Maybe this isn't necessary with a zip file,
// - ZipFile class may be smart enough to do it.
// But it is certainly necessary in the JCR case.
// resolvedPartUri = (new java.net.URI(resolvedPartUri)).normalize().toString();
// log.info("Normalised, it is " + resolvedPartUri );
} else {
// EXTERNAL
if (loadExternalTargets && r.getType().equals(Namespaces.IMAGE)) {
// It could instead be, for example, of type hyperlink,
// and we don't want to try to fetch that
log.info("Loading external resource " + r.getTarget() + " of type " + r.getType());
BinaryPart bp = ExternalResourceUtils.getExternalResource(r.getTarget());
pkg.getExternalResources().put(bp.getExternalTarget(), bp);
} else {
log.info(
"Encountered (but not loading) external resource "
+ r.getTarget()
+ " of type "
+ r.getType());
}
return;
}
String relationshipType = r.getType();
Part part;
if (pkg.handled.get(resolvedPartUri) != null) {
// The source Part (or Package) might have a convenience
// method for this
part = pkg.getParts().getParts().get(new PartName("/" + resolvedPartUri));
if (source.setPartShortcut(part, relationshipType)) {
log.debug(
"Convenience method established from "
+ source.getPartName()
+ " to "
+ part.getPartName());
}
return;
}
part = getRawPart(ctm, resolvedPartUri, r); // will throw exception if null
// The source Part (or Package) might have a convenience
// method for this
if (source.setPartShortcut(part, relationshipType)) {
log.debug(
"Convenience method established from "
+ source.getPartName()
+ " to "
+ part.getPartName());
}
if (part instanceof BinaryPart || part instanceof DefaultXmlPart) {
// The constructors of other parts should take care of this...
part.setRelationshipType(relationshipType);
}
rp.loadPart(part, r);
pkg.handled.put(resolvedPartUri, resolvedPartUri);
// unusedZipEntries.put(resolvedPartUri, new Boolean(false));
RelationshipsPart rrp = getRelationshipsPart(part);
if (rrp != null) {
// recurse via this parts relationships, if it has any
addPartsFromRelationships(part, rrp, ctm);
String relPart = PartName.getRelationshipsPartName(part.getPartName().getName().substring(1));
// unusedZipEntries.put(relPart, new Boolean(false));
}
}
public static void recurse(
Alterations alterations, RelationshipsPart thisRP, RelationshipsPart otherRP)
throws Docx4JException {
log.info("######### @" + thisRP.partName.getName() + "#########");
log.info("uniques -------");
List<Relationship> uniques = thisRP.uniqueToThis(otherRP);
addPartsForRels(alterations.getPartsAdded(), uniques, thisRP);
List<Relationship> missings = thisRP.uniqueToOther(otherRP);
addPartsForRels(alterations.getPartsDeleted(), missings, otherRP);
// is this rels part itself altered?
if (!thisRP.isContentEqual(otherRP)) {
alterations.getPartsModified().add(new Alteration(thisRP, toStorageFormat(thisRP)));
}
log.info("content -------");
List<Relationship> altered = thisRP.differingContent(otherRP);
addPartsForRels(alterations.getPartsModified(), altered, thisRP);
// Now recurse all rels
log.info("recurse ------- ");
for (Relationship r : thisRP.getJaxbElement().getRelationship()) {
if (r.getTargetMode() != null && r.getTargetMode().equals("External")) {
// do nothing
} else {
if (uniques.contains(r)) {
// add tree, including any external parts
// (we already have the part itself)
addTree(alterations.getPartsAdded(), thisRP.getPart(r).getRelationshipsPart());
} else if (missings.contains(r)) {
addTree(alterations.getPartsDeleted(), thisRP.getPart(r).getRelationshipsPart());
} else {
// its present in both trees.
// irrespective of whether content of part is the same, content of a rel could still have
// changed
Part thisPart = thisRP.getPart(r);
Part otherPart =
otherRP.getPart(RelationshipsPart.getRelationshipByTarget(otherRP, r.getTarget()));
if (thisPart.getRelationshipsPart() == null) {
if (otherPart.getRelationshipsPart() != null) {
// add tree, including any external parts
alterations
.getPartsDeleted()
.add(
new Alteration(
thisPart.getPartName(),
toStorageFormat(thisPart.getRelationshipsPart())));
addTree(alterations.getPartsDeleted(), thisPart.getRelationshipsPart());
}
} else {
if (otherPart.getRelationshipsPart() == null) {
// add tree, including any external parts
alterations
.getPartsAdded()
.add(
new Alteration(
thisPart.getPartName(),
toStorageFormat(thisPart.getRelationshipsPart())));
addTree(alterations.getPartsAdded(), thisPart.getRelationshipsPart());
} else {
recurse(
alterations, thisPart.getRelationshipsPart(), otherPart.getRelationshipsPart());
}
}
}
}
}
}
/* recursively
(i) get each Part listed in the relationships
(ii) add the Part to the zip file
(iii) traverse its relationship
*/
public void addPartsFromRelationships(ZipOutputStream out, RelationshipsPart rp)
throws Docx4JException {
// for (Iterator it = rp.iterator(); it.hasNext(); ) {
// Relationship r = (Relationship)it.next();
// log.info("For Relationship Id=" + r.getId() + " Source is " + r.getSource().getPartName() +
// ", Target is " + r.getTargetURI() );
for (Relationship r : rp.getRelationships().getRelationship()) {
log.debug(
"For Relationship Id="
+ r.getId()
+ " Source is "
+ rp.getSourceP().getPartName()
+ ", Target is "
+ r.getTarget());
if (r.getType().equals(Namespaces.HYPERLINK)) {
continue; // whether internal or external
}
if (r.getTargetMode() != null && r.getTargetMode().equals("External")) {
// ie its EXTERNAL
// As at 1 May 2008, we don't have a Part for these;
// there is just the relationship.
log.warn("Encountered external resource " + r.getTarget() + " of type " + r.getType());
// So
continue;
}
try {
// String resolvedPartUri = URIHelper.resolvePartUri(r.getSourceURI(), r.getTargetURI()
// ).toString();
String resolvedPartUri =
URIHelper.resolvePartUri(rp.getSourceURI(), new URI(r.getTarget())).toString();
// Now drop leading "/'
resolvedPartUri = resolvedPartUri.substring(1);
// Now normalise it .. ie abc/def/../ghi
// becomes abc/ghi
// Maybe this isn't necessary with a zip file,
// - ZipFile class may be smart enough to do it.
// But it is certainly necessary in the JCR case.
// target = (new java.net.URI(target)).normalize().toString();
// log.info("Normalised, it is " + target );
// Document contents = getDocumentFromZippedPart( zf, target);
if (!false) {
log.debug("Getting part /" + resolvedPartUri);
// Part part = p.getParts().get(new PartName("/" + resolvedPartUri));
Part part = rp.getPart(r);
// 2012 09 26: If the part is actually attached to
// a different package, using this you can still get it.
// Use this 'feature' at your own risk!
if (part == null) {
log.error("Part " + resolvedPartUri + " not found!");
} else {
log.debug(part.getClass().getName());
}
if (!part.getPackage().equals(p)) {
log.warn("Part " + resolvedPartUri + " is attached to some other package");
}
savePart(out, part);
}
} catch (Exception e) {
throw new Docx4JException(
"Failed to add parts from relationships of " + rp.getSourceP().getPartName(), e);
}
}
}