Examples with EntityWithExcerptFacade org.graylog2.contentpacks.facades.EntityWithExcerptFacade used on opensource projects

Example 6 with EntityWithExcerptFacade

use of org.graylog2.contentpacks.facades.EntityWithExcerptFacade in project graylog2-server by Graylog2.

the class ContentPackService method installContentPack.

private ContentPackInstallation installContentPack(ContentPackV1 contentPack, Map<String, ValueReference> parameters, String comment, String user) {
    ensureConstraints(contentPack.constraints());
    final Entity rootEntity = EntityV1.createRoot(contentPack);
    final ImmutableMap<String, ValueReference> validatedParameters = validateParameters(parameters, contentPack.parameters());
    final ImmutableGraph<Entity> dependencyGraph = buildEntityGraph(rootEntity, contentPack.entities(), validatedParameters);
    final Traverser<Entity> entityTraverser = Traverser.forGraph(dependencyGraph);
    final Iterable<Entity> entitiesInOrder = entityTraverser.depthFirstPostOrder(rootEntity);
    // Insertion order is important for created entities so we can roll back in order!
    final Map<EntityDescriptor, Object> createdEntities = new LinkedHashMap<>();
    final Map<EntityDescriptor, Object> allEntities = new HashMap<>();
    final ImmutableSet.Builder<NativeEntityDescriptor> allEntityDescriptors = ImmutableSet.builder();
    try {
        for (Entity entity : entitiesInOrder) {
            if (entity.equals(rootEntity)) {
                continue;
            }
            final EntityDescriptor entityDescriptor = entity.toEntityDescriptor();
            final EntityWithExcerptFacade facade = entityFacades.getOrDefault(entity.type(), UnsupportedEntityFacade.INSTANCE);
            @SuppressWarnings({ "rawtypes", "unchecked" }) final Optional<NativeEntity> existingEntity = facade.findExisting(entity, parameters);
            if (existingEntity.isPresent()) {
                LOG.trace("Found existing entity for {}", entityDescriptor);
                final NativeEntity<?> nativeEntity = existingEntity.get();
                final NativeEntityDescriptor nativeEntityDescriptor = nativeEntity.descriptor();
                /* Found entity on the system or we found a other installation which stated that */
                if (contentPackInstallationPersistenceService.countInstallationOfEntityById(nativeEntityDescriptor.id()) <= 0 || contentPackInstallationPersistenceService.countInstallationOfEntityByIdAndFoundOnSystem(nativeEntityDescriptor.id()) > 0) {
                    final NativeEntityDescriptor serverDescriptor = nativeEntityDescriptor.toBuilder().foundOnSystem(true).build();
                    allEntityDescriptors.add(serverDescriptor);
                } else {
                    allEntityDescriptors.add(nativeEntity.descriptor());
                }
                allEntities.put(entityDescriptor, nativeEntity.entity());
            } else {
                LOG.trace("Creating new entity for {}", entityDescriptor);
                final NativeEntity<?> createdEntity = facade.createNativeEntity(entity, validatedParameters, allEntities, user);
                allEntityDescriptors.add(createdEntity.descriptor());
                createdEntities.put(entityDescriptor, createdEntity.entity());
                allEntities.put(entityDescriptor, createdEntity.entity());
            }
        }
    } catch (Exception e) {
        rollback(createdEntities);
        throw new ContentPackException("Failed to install content pack <" + contentPack.id() + "/" + contentPack.revision() + ">", e);
    }
    final ContentPackInstallation installation = ContentPackInstallation.builder().contentPackId(contentPack.id()).contentPackRevision(contentPack.revision()).parameters(validatedParameters).comment(comment).entities(allEntityDescriptors.build()).createdAt(Instant.now()).createdBy(user).build();
    return contentPackInstallationPersistenceService.insert(installation);
}

Example 7 with EntityWithExcerptFacade

use of org.graylog2.contentpacks.facades.EntityWithExcerptFacade in project graylog2-server by Graylog2.

the class ContentPackService method rollback.

@SuppressWarnings("unchecked")
private void rollback(Map<EntityDescriptor, Object> entities) {
    final ImmutableList<Map.Entry<EntityDescriptor, Object>> entries = ImmutableList.copyOf(entities.entrySet());
    for (Map.Entry<EntityDescriptor, Object> entry : entries.reverse()) {
        final EntityDescriptor entityDescriptor = entry.getKey();
        final Object entity = entry.getValue();
        final EntityWithExcerptFacade facade = entityFacades.getOrDefault(entityDescriptor.type(), UnsupportedEntityFacade.INSTANCE);
        LOG.debug("Removing entity {}", entityDescriptor);
        facade.delete(entity);
    }
}

Example 8 with EntityWithExcerptFacade

use of org.graylog2.contentpacks.facades.EntityWithExcerptFacade in project graylog2-server by Graylog2.

the class ContentPackService method uninstallContentPack.

private ContentPackUninstallation uninstallContentPack(ContentPackInstallation installation, ContentPackV1 contentPack) {
    final Entity rootEntity = EntityV1.createRoot(contentPack);
    final ImmutableMap<String, ValueReference> parameters = installation.parameters();
    final ImmutableGraph<Entity> dependencyGraph = buildEntityGraph(rootEntity, contentPack.entities(), parameters);
    final Traverser<Entity> entityTraverser = Traverser.forGraph(dependencyGraph);
    final Iterable<Entity> entitiesInOrder = entityTraverser.breadthFirst(rootEntity);
    final Set<NativeEntityDescriptor> removedEntities = new HashSet<>();
    final Set<NativeEntityDescriptor> failedEntities = new HashSet<>();
    final Set<NativeEntityDescriptor> skippedEntities = new HashSet<>();
    try {
        for (Entity entity : entitiesInOrder) {
            if (entity.equals(rootEntity)) {
                continue;
            }
            final Optional<NativeEntityDescriptor> nativeEntityDescriptorOptional = installation.entities().stream().filter(descriptor -> entity.id().equals(descriptor.contentPackEntityId())).findFirst();
            final EntityWithExcerptFacade facade = entityFacades.getOrDefault(entity.type(), UnsupportedEntityFacade.INSTANCE);
            if (nativeEntityDescriptorOptional.isPresent()) {
                final NativeEntityDescriptor nativeEntityDescriptor = nativeEntityDescriptorOptional.get();
                final Optional nativeEntityOptional = facade.loadNativeEntity(nativeEntityDescriptor);
                final ModelId entityId = nativeEntityDescriptor.id();
                final long installCount = contentPackInstallationPersistenceService.countInstallationOfEntityById(entityId);
                final long systemFoundCount = contentPackInstallationPersistenceService.countInstallationOfEntityByIdAndFoundOnSystem(entityId);
                if (installCount > 1 || (installCount == 1 && systemFoundCount >= 1)) {
                    skippedEntities.add(nativeEntityDescriptor);
                    LOG.debug("Did not remove entity since other content pack installations still use them: {}", nativeEntityDescriptor);
                } else if (nativeEntityOptional.isPresent()) {
                    final Object nativeEntity = nativeEntityOptional.get();
                    LOG.trace("Removing existing native entity for {} ({})", nativeEntityDescriptor);
                    try {
                        // The EntityFacade#delete() method expects the actual entity object
                        // noinspection unchecked
                        facade.delete(((NativeEntity) nativeEntity).entity());
                        removedEntities.add(nativeEntityDescriptor);
                    } catch (Exception e) {
                        LOG.warn("Couldn't remove native entity {}", nativeEntity);
                        failedEntities.add(nativeEntityDescriptor);
                    }
                } else {
                    LOG.trace("Couldn't find existing native entity for {} ({})", nativeEntityDescriptor);
                }
            }
        }
    } catch (Exception e) {
        throw new ContentPackException("Failed to remove content pack <" + contentPack.id() + "/" + contentPack.revision() + ">", e);
    }
    final int deletedInstallations = contentPackInstallationPersistenceService.deleteById(installation.id());
    LOG.debug("Deleted {} installation(s) of content pack {}", deletedInstallations, contentPack.id());
    return ContentPackUninstallation.builder().entities(ImmutableSet.copyOf(removedEntities)).skippedEntities(ImmutableSet.copyOf(skippedEntities)).failedEntities(ImmutableSet.copyOf(failedEntities)).build();
}