| /* |
| * 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.shardingsphere.elasticjob.lite.internal.instance; |
| |
| import org.apache.shardingsphere.elasticjob.infra.handler.sharding.JobInstance; |
| import org.apache.shardingsphere.elasticjob.infra.yaml.YamlEngine; |
| import org.apache.shardingsphere.elasticjob.lite.internal.server.ServerService; |
| import org.apache.shardingsphere.elasticjob.lite.internal.storage.JobNodeStorage; |
| import org.apache.shardingsphere.elasticjob.lite.internal.trigger.TriggerNode; |
| import org.apache.shardingsphere.elasticjob.reg.base.CoordinatorRegistryCenter; |
| |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| /** |
| * Job instance service. |
| */ |
| public final class InstanceService { |
| |
| private final JobNodeStorage jobNodeStorage; |
| |
| private final InstanceNode instanceNode; |
| |
| private final TriggerNode triggerNode; |
| |
| private final ServerService serverService; |
| |
| public InstanceService(final CoordinatorRegistryCenter regCenter, final String jobName) { |
| jobNodeStorage = new JobNodeStorage(regCenter, jobName); |
| instanceNode = new InstanceNode(jobName); |
| triggerNode = new TriggerNode(jobName); |
| serverService = new ServerService(regCenter, jobName); |
| } |
| |
| /** |
| * Persist job online status. |
| */ |
| public void persistOnline() { |
| jobNodeStorage.fillEphemeralJobNode(instanceNode.getLocalInstancePath(), instanceNode.getLocalInstanceValue()); |
| } |
| |
| /** |
| * Persist job instance. |
| */ |
| public void removeInstance() { |
| jobNodeStorage.removeJobNodeIfExisted(instanceNode.getLocalInstancePath()); |
| } |
| |
| /** |
| * Get available job instances. |
| * |
| * @return available job instances |
| */ |
| public List<JobInstance> getAvailableJobInstances() { |
| List<JobInstance> result = new LinkedList<>(); |
| for (String each : jobNodeStorage.getJobNodeChildrenKeys(InstanceNode.ROOT)) { |
| JobInstance jobInstance = YamlEngine.unmarshal(jobNodeStorage.getJobNodeData(instanceNode.getInstancePath(each)), JobInstance.class); |
| if (null != jobInstance && serverService.isEnableServer(jobInstance.getServerIp())) { |
| result.add(new JobInstance(each)); |
| } |
| } |
| return result; |
| } |
| |
| boolean isLocalJobInstanceExisted() { |
| return jobNodeStorage.isJobNodeExisted(instanceNode.getLocalInstancePath()); |
| } |
| |
| /** |
| * Trigger all instances. |
| */ |
| public void triggerAllInstances() { |
| jobNodeStorage.removeJobNodeIfExisted(triggerNode.getTriggerRoot()); |
| jobNodeStorage.getJobNodeChildrenKeys(InstanceNode.ROOT).forEach(each -> jobNodeStorage.createJobNodeIfNeeded(triggerNode.getTriggerPath(each))); |
| } |
| } |