@Override
public TransactionRunnable getAttachmentArchiveDeleteRunnable(final AttachmentReference ref) {
final AttachmentFileProvider provider = this.fileTools.getAttachmentFileProvider(ref);
final TransactionRunnable out = new TransactionRunnable();
final File archiveMeta = provider.getAttachmentVersioningMetaFile();
final Serializer<List<XWikiAttachment>, List<XWikiAttachment>> mSerializer =
this.metaSerializer;
(new TransactionRunnable() {
@Override
protected void onRun() throws IOException {
if (archiveMeta.exists()) {
InputStream is = null;
try {
is = new FileInputStream(archiveMeta);
for (final XWikiAttachment ver : mSerializer.parse(is)) {
provider.getAttachmentVersionContentFile(ver.getVersion()).delete();
}
} finally {
IOUtils.closeQuietly(is);
}
}
}
})
.runIn(out);
this.fileTools.getDeleter(provider.getAttachmentVersioningMetaFile()).runIn(out);
return out;
}
@Override
public TransactionRunnable getAttachmentArchiveSaveRunnable(final List versionList) {
// For some reason this is required even though the interface specifies a
// List<XWikiAttachment>, this appears to be a bug in javac.
final List<XWikiAttachment> versions = (List<XWikiAttachment>) versionList;
final TransactionRunnable out = new TransactionRunnable();
if (versions.size() == 0) {
return out;
}
final AttachmentReference ref = AttachmentTools.referenceForAttachment(versions.get(0));
final AttachmentFileProvider provider = this.fileTools.getAttachmentFileProvider(ref);
for (final XWikiAttachment attachVer : versions) {
final String verName = attachVer.getVersion();
// If the content is not dirty and the file was already saved then we will not update.
if (attachVer.isContentDirty()
|| !provider.getAttachmentVersionContentFile(verName).exists()) {
this.fileTools
.getSaver(
new AttachmentContentStreamProvider(attachVer.getAttachment_content()),
provider.getAttachmentVersionContentFile(verName))
.runIn(out);
}
}
// Then do the metadata.
final StreamProvider sp =
new SerializationStreamProvider<List<XWikiAttachment>>(this.metaSerializer, versions);
this.fileTools.getSaver(sp, provider.getAttachmentVersioningMetaFile()).runIn(out);
return out;
}
@Override
public TransactionRunnable getAttachmentArchiveLoadRunnable(
final AttachmentReference ref, final List output) {
final AttachmentFileProvider provider = this.fileTools.getAttachmentFileProvider(ref);
final File metaFile = provider.getAttachmentVersioningMetaFile();
// If no meta file then assume no archive and do nothing.
if (!metaFile.exists()) {
return new TransactionRunnable();
}
final Serializer<List<XWikiAttachment>, List<XWikiAttachment>> mSerializer =
this.metaSerializer;
return new TransactionRunnable() {
@Override
protected void onRun() throws IOException {
final InputStream is = new FileInputStream(metaFile);
final List<XWikiAttachment> attachList = mSerializer.parse(is);
is.close();
for (XWikiAttachment attach : attachList) {
attach.setAttachment_content(
new FilesystemAttachmentContent(
provider.getAttachmentVersionContentFile(attach.getVersion()), attach));
output.add(attach);
}
// final ListAttachmentArchive out = new ListAttachmentArchive(attachList);
// out.setAttachment(attachment);
// attachment.setAttachment_archive(out);
}
};
}
