@Override
public boolean deleteVersions(List<Versions> versions) {
for (Versions versionToDelete : versions) {
if (versionToDelete instanceof VersionsFileImpl) {
VersionsFileImpl versionsImpl = (VersionsFileImpl) versionToDelete;
VFSLeaf versionFile = versionsImpl.getVersionFile();
if (versionFile != null) {
// robust against manual file system manipulation
versionFile.deleteSilently();
}
for (VFSRevision revisionToDelete : versionsImpl.getRevisions()) {
RevisionFileImpl versionImpl = (RevisionFileImpl) revisionToDelete;
VFSLeaf fileToDelete = versionImpl.getFile();
if (fileToDelete != null) {
fileToDelete.deleteSilently();
}
}
}
}
return true;
}
@Override
public boolean deleteRevisions(Versionable currentVersion, List<VFSRevision> versionsToDelete) {
VFSLeaf currentFile = (VFSLeaf) currentVersion;
Versions versions = readVersions(currentFile, true);
List<VFSRevision> allVersions = versions.getRevisions();
Map<String, VFSLeaf> filenamesToDelete = new HashMap<String, VFSLeaf>(allVersions.size());
for (VFSRevision versionToDelete : versionsToDelete) {
RevisionFileImpl versionImpl = (RevisionFileImpl) versionToDelete;
for (Iterator<VFSRevision> allVersionIt = allVersions.iterator(); allVersionIt.hasNext(); ) {
RevisionFileImpl allVersionImpl = (RevisionFileImpl) allVersionIt.next();
if (allVersionImpl.getFilename() != null
&& allVersionImpl.getFilename().equals(versionImpl.getFilename())) {
allVersionIt.remove();
break;
}
}
VFSLeaf fileToDelete = versionImpl.getFile();
if (fileToDelete != null) {
filenamesToDelete.put(fileToDelete.getName(), fileToDelete);
}
}
List<RevisionFileImpl> missingFiles = new ArrayList<>();
for (VFSRevision survivingVersion : allVersions) {
RevisionFileImpl survivingVersionImpl = (RevisionFileImpl) survivingVersion;
VFSLeaf revFile = survivingVersionImpl.getFile();
if (revFile == null) {
missingFiles.add(survivingVersionImpl); // file is missing
} else if (filenamesToDelete.containsKey(revFile.getName())) {
filenamesToDelete.remove(revFile.getName());
}
}
if (missingFiles.size() > 0) {
allVersions.removeAll(missingFiles);
}
for (VFSLeaf fileToDelete : filenamesToDelete.values()) {
fileToDelete.deleteSilently();
}
VFSLeaf versionFile = getCanonicalVersionXmlFile(currentFile, true);
XStreamHelper.writeObject(mystream, versionFile, versions);
if (currentVersion.getVersions() instanceof VersionsFileImpl) {
((VersionsFileImpl) currentVersion.getVersions()).update(versions);
}
return true;
}