| /* |
| * Copyright 1999-2015 dangdang.com. |
| * <p> |
| * Licensed 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. |
| * </p> |
| */ |
| |
| package io.elasticjob.cloud.scheduler.state.disable.app; |
| |
| import io.elasticjob.cloud.scheduler.env.BootstrapEnvironment; |
| import io.elasticjob.cloud.reg.base.CoordinatorRegistryCenter; |
| import lombok.extern.slf4j.Slf4j; |
| |
| /** |
| * 禁用应用队列服务. |
| * |
| * @author caohao |
| */ |
| @Slf4j |
| public class DisableAppService { |
| |
| private final BootstrapEnvironment env = BootstrapEnvironment.getInstance(); |
| |
| private final CoordinatorRegistryCenter regCenter; |
| |
| public DisableAppService(final CoordinatorRegistryCenter regCenter) { |
| this.regCenter = regCenter; |
| } |
| |
| /** |
| * 将应用放入禁用队列. |
| * |
| * @param appName 应用名称 |
| */ |
| public void add(final String appName) { |
| if (regCenter.getNumChildren(DisableAppNode.ROOT) > env.getFrameworkConfiguration().getJobStateQueueSize()) { |
| log.warn("Cannot add disable app, caused by read state queue size is larger than {}.", env.getFrameworkConfiguration().getJobStateQueueSize()); |
| return; |
| } |
| String disableAppNodePath = DisableAppNode.getDisableAppNodePath(appName); |
| if (!regCenter.isExisted(disableAppNodePath)) { |
| regCenter.persist(disableAppNodePath, appName); |
| } |
| } |
| |
| /** |
| * 从禁用应用队列中删除应用. |
| * |
| * @param appName 待删除的应用名称 |
| */ |
| public void remove(final String appName) { |
| regCenter.remove(DisableAppNode.getDisableAppNodePath(appName)); |
| } |
| |
| /** |
| * 判断应用是否在禁用应用队列中. |
| * |
| * @param appName 应用名称 |
| * @return 应用是否被禁用 |
| */ |
| public boolean isDisabled(final String appName) { |
| return regCenter.isExisted(DisableAppNode.getDisableAppNodePath(appName)); |
| } |
| } |