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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.spring;
import org.apache.nifi.admin.service.AuditService;
import org.apache.nifi.authorization.Authorizer;
import org.apache.nifi.cluster.coordination.ClusterCoordinator;
import org.apache.nifi.cluster.coordination.heartbeat.HeartbeatMonitor;
import org.apache.nifi.cluster.protocol.NodeProtocolSender;
import org.apache.nifi.controller.FlowController;
import org.apache.nifi.controller.leader.election.LeaderElectionManager;
import org.apache.nifi.controller.repository.FlowFileEventRepository;
import org.apache.nifi.controller.status.history.StatusHistoryRepository;
import org.apache.nifi.encrypt.PropertyEncryptor;
import org.apache.nifi.nar.ExtensionManager;
import org.apache.nifi.registry.VariableRegistry;
import org.apache.nifi.registry.flow.FlowRegistryClient;
import org.apache.nifi.reporting.BulletinRepository;
import org.apache.nifi.util.NiFiProperties;
import org.apache.nifi.web.revision.RevisionManager;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
/**
* Factory bean for creating a singleton FlowController instance. If the application is configured to act as the cluster manager, then null is always returned as the created instance.
*/
@SuppressWarnings("rawtypes")
public class FlowControllerFactoryBean implements FactoryBean, ApplicationContextAware {
private ApplicationContext applicationContext;
private FlowController flowController;
private NiFiProperties properties;
private Authorizer authorizer;
private AuditService auditService;
private PropertyEncryptor encryptor;
private BulletinRepository bulletinRepository;
private ClusterCoordinator clusterCoordinator;
private VariableRegistry variableRegistry;
private LeaderElectionManager leaderElectionManager;
private FlowRegistryClient flowRegistryClient;
private ExtensionManager extensionManager;
private RevisionManager revisionManager;
private StatusHistoryRepository statusHistoryRepository;
@Override
public Object getObject() throws Exception {
if (flowController == null) {
final FlowFileEventRepository flowFileEventRepository = applicationContext.getBean("flowFileEventRepository", FlowFileEventRepository.class);
if (properties.isNode()) {
final NodeProtocolSender nodeProtocolSender = applicationContext.getBean("nodeProtocolSender", NodeProtocolSender.class);
final HeartbeatMonitor heartbeatMonitor = applicationContext.getBean("heartbeatMonitor", HeartbeatMonitor.class);
flowController = FlowController.createClusteredInstance(
flowFileEventRepository,
properties,
authorizer,
auditService,
encryptor,
nodeProtocolSender,
bulletinRepository,
clusterCoordinator,
heartbeatMonitor,
leaderElectionManager,
variableRegistry,
flowRegistryClient,
extensionManager,
revisionManager,
statusHistoryRepository);
} else {
flowController = FlowController.createStandaloneInstance(
flowFileEventRepository,
properties,
authorizer,
auditService,
encryptor,
bulletinRepository,
variableRegistry,
flowRegistryClient,
extensionManager,
statusHistoryRepository);
}
}
return flowController;
}
@Override
public Class getObjectType() {
return FlowController.class;
}
@Override
public boolean isSingleton() {
return true;
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
}
public void setProperties(NiFiProperties properties) {
this.properties = properties;
}
public void setAuthorizer(final Authorizer authorizer) {
this.authorizer = authorizer;
}
public void setEncryptor(final PropertyEncryptor encryptor) {
this.encryptor = encryptor;
}
public void setAuditService(final AuditService auditService) {
this.auditService = auditService;
}
public void setBulletinRepository(final BulletinRepository bulletinRepository) {
this.bulletinRepository = bulletinRepository;
}
public void setVariableRegistry(VariableRegistry variableRegistry) {
this.variableRegistry = variableRegistry;
}
public void setClusterCoordinator(final ClusterCoordinator clusterCoordinator) {
this.clusterCoordinator = clusterCoordinator;
}
public void setLeaderElectionManager(final LeaderElectionManager leaderElectionManager) {
this.leaderElectionManager = leaderElectionManager;
}
public void setFlowRegistryClient(final FlowRegistryClient flowRegistryClient) {
this.flowRegistryClient = flowRegistryClient;
}
public void setExtensionManager(ExtensionManager extensionManager) {
this.extensionManager = extensionManager;
}
public void setRevisionManager(final RevisionManager revisionManager) {
this.revisionManager = revisionManager;
}
public void setStatusHistoryRepository(StatusHistoryRepository statusHistoryRepository) {
this.statusHistoryRepository = statusHistoryRepository;
}
}