/**
* Deserializes the snapshot contained in the {@link WaveletSnapshot} into an {@link
* ObservableWaveletData}.
*
* @param snapshot the {@link WaveletSnapshot} to deserialize.
* @throws OperationException if the ops in the snapshot can not be applied.
* @throws InvalidParticipantAddress
* @throws InvalidIdException
*/
public static ObservableWaveletData deserializeWavelet(WaveletSnapshot snapshot, WaveId waveId)
throws OperationException, InvalidParticipantAddress, InvalidIdException {
ObservableWaveletData.Factory<? extends ObservableWaveletData> factory =
WaveletDataImpl.Factory.create(
ObservablePluggableMutableDocument.createFactory(SchemaCollection.empty()));
ParticipantId author = ParticipantId.of(snapshot.getCreator());
WaveletId waveletId = ModernIdSerialiser.INSTANCE.deserialiseWaveletId(snapshot.getWaveletId());
long creationTime = snapshot.getCreationTime();
ObservableWaveletData wavelet =
factory.create(
new EmptyWaveletSnapshot(
waveId,
waveletId,
author,
CoreWaveletOperationSerializer.deserialize(snapshot.getVersion()),
creationTime));
for (String participant : snapshot.getParticipantIdList()) {
wavelet.addParticipant(getParticipantId(participant));
}
for (DocumentSnapshot document : snapshot.getDocumentList()) {
addDocumentSnapshotToWavelet(document, wavelet);
}
wavelet.setVersion(snapshot.getVersion().getVersion());
wavelet.setLastModifiedTime(snapshot.getLastModifiedTime());
// The creator and creation time are set when the empty wavelet template is
// created above.
return wavelet;
}
private static void addDocumentSnapshotToWavelet(DocumentSnapshot snapshot, WaveletData container)
throws InvalidParticipantAddress {
DocOp op = CoreWaveletOperationSerializer.deserialize(snapshot.getDocumentOperation());
DocInitialization docInit = DocOpUtil.asInitialization(op);
Collection<ParticipantId> contributors = CollectionUtils.newArrayList();
for (String p : snapshot.getContributorList()) {
contributors.add(getParticipantId(p));
}
container.createDocument(
snapshot.getDocumentId(),
getParticipantId(snapshot.getAuthor()),
contributors,
docInit,
snapshot.getLastModifiedTime(),
snapshot.getLastModifiedVersion());
}
