@Override public T read(String id, Integer version) throws IResourceStore.ResourceNotFoundException, IResourceStore.ResourceStoreException { RuntimeUtilities.checkNotNull(id, "id"); RuntimeUtilities.checkNotNull(version, "version"); IResourceStorage.IResource<T> current = resourceStorage.read(id, version); if (current == null) { IResourceStorage.IHistoryResource historyResource = resourceStorage.readHistory(id, version); if (historyResource == null || historyResource.isDeleted()) { throw createResourceNotFoundException(id, version); } current = historyResource; } try { return current.getData(); } catch (IOException e) { String message = "Unable to deserialize resource (id=%s, version=%s)"; message = String.format(message, id, version); throw new IResourceStore.ResourceStoreException(message, e); } }
public Integer set(String id, Integer version, T content) throws ResourceStoreException, ResourceNotFoundException { RuntimeUtilities.checkNotNull(id, "id"); RuntimeUtilities.checkNotNull(version, "version"); RuntimeUtilities.checkNotNull(content, "content"); IResourceStorage.IResource<T> resource = resourceStorage.read(id, version); try { if (resource == null) { IResourceStorage.IHistoryResource historyLatest = resourceStorage.readHistoryLatest(id); if (historyLatest == null || historyLatest.isDeleted() || version > historyLatest.getVersion()) { throw createResourceNotFoundException(id, version); } //it's a update request for a historized resource, so we update the history resource IResourceStorage.IResource<T> updatedResource = resourceStorage.newResource(id, version, content); IResourceStorage.IHistoryResource<T> updatedHistorizedResource = resourceStorage.newHistoryResourceFor(updatedResource, false); resourceStorage.store(updatedHistorizedResource); return version; } else { //it's a update request for the current resource, so we update the current resource IResourceStorage.IResource<T> updatedResource = resourceStorage.newResource(id, version, content); resourceStorage.store(updatedResource); return version; } } catch (IOException e) { throw new ResourceStoreException(e.getLocalizedMessage(), e); } }
private void checkIfFoundAndLatest(String id, Integer version, IResourceStorage.IResource resource) throws ResourceNotFoundException, ResourceModifiedException { if (resource == null) { IResourceStorage.IHistoryResource historyLatest = resourceStorage.readHistoryLatest(id); if (historyLatest == null || historyLatest.isDeleted() || version > historyLatest.getVersion()) { throw createResourceNotFoundException(id, version); } throw createResourceAlreadyModifiedException(id, version); } }