GroupNode findOrCreateSystemNode(MonitorEngine engine) {
   ManagedNode infNode = nodeService.findByPath(ManagedNode.INFRASTRUCTURE_PATH);
   // 兼容手工创建时,引擎资源节点存在对应管理节点的情况
   // 创建 引擎系统 群组,其中存放监控服务器,监控引擎,相关redis/mysql/nginx等自带应用
   GroupNode engineSystemGroupNode;
   try {
     engineSystemGroupNode = (GroupNode) nodeService.findByPath(engine.getSystemPath());
   } catch (IllegalArgumentException e) {
     // Not found exception
     engineSystemGroupNode = new GroupNode();
     engineSystemGroupNode.cascadeCreating();
     engineSystemGroupNode.setPath(engine.getSystemPath());
     if (engine.isDefault()) {
       engineSystemGroupNode.setLabel("缺省监控系统");
     } else {
       engineSystemGroupNode.setLabel(engine.getLabel() + "系统");
     }
     engineSystemGroupNode.setIcon("monitor_system");
     engineSystemGroupNode.setComment("Auto created system group node for " + engine.getLabel());
     try {
       nodeService.create(infNode, engineSystemGroupNode);
     } catch (NodeException ex) {
       throw new ApplicationContextException("Can't auto create engine group node", ex);
     }
   }
   return engineSystemGroupNode;
 }
示例#2
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 private MonitorEngine initDefaultEngine() {
   MonitorEngine engine = new MonitorEngine();
   engine.setName("default");
   engine.setLabel("缺省引擎");
   engine.setAddress("0.0.0.0:1000");
   return engine;
 }
示例#3
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 @Override
 public MonitorEngine approve(MonitorEngine engine, String name, String label)
     throws ResourceException {
   engine.setName(name);
   engine.setLabel(label);
   approveIt(engine);
   return update(engine);
 }
示例#4
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 @Override
 protected void validateOnCreate(MonitorEngine engine) throws ValidationException {
   super.validateOnCreate(engine);
   MonitorEngine exist = findByAddress(engine.getAddress());
   if (exist != null) {
     throw new ValidationException("There is an engine with address " + engine.getAddress());
   }
 }
示例#5
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 protected boolean isDefault(MonitorEngine engine) {
   // 判断引擎的名称,这个是由管理员自行设置的
   if (engine.isDefault()) return true;
   // 在某些本机场景下, server address = localhost, engine address = 192.168.12.63
   SocketAddress serverAddr = IpUtils.parseSocketAddress(serverService.getServer().getAddress());
   SocketAddress engineAddr = IpUtils.parseSocketAddress(engine.getAddress());
   return StringUtils.equals(serverAddr.getHost(), engineAddr.getHost());
 }
示例#6
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 /**
  *
  *
  * <h2>根据默认规则执行对该引擎的批准动作</h2>
  *
  * @param engine 刚刚注册上来的监控引擎
  */
 void performApproval(MonitorEngine engine) {
   if (isDefault(engine)) {
     engine.setLabel("缺省引擎");
     engine.setName("default");
     approveIt(engine);
   } else if (isAutoApprove(engine)) {
     // 这种情况,应该在用户手工创建时,engine system node 和engine scope node都已经创建
     approveIt(engine);
   }
 }
 @Override
 protected void onApprove(MonitorEngine engine, MonitorEngine... oldEngines) {
   if (oldEngines.length == 0) return;
   MonitorEngine oldEngine = oldEngines[0];
   String legacySystemPath = oldEngine.getSystemPath();
   String systemPath = engine.getSystemPath();
   autoUpdateNodesForEngine(legacySystemPath, systemPath);
   String legacyScopePath = oldEngine.getScopePath();
   String scopePath = engine.getScopePath();
   autoUpdateNodesForEngine(legacyScopePath, scopePath);
 }
示例#8
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 @Override
 protected void validateOnUpdate(MonitorEngine exist, MonitorEngine resource)
     throws ValidationException {
   super.validateOnUpdate(exist, resource);
   // IP地址变了
   if (!StringUtils.equals(exist.getAddress(), resource.getAddress())) {
     MonitorEngine another = findByAddress(resource.getAddress());
     if (another != null) {
       throw new ValidationException(
           "There is another engine with address " + resource.getAddress());
     }
   }
 }
 void createEngineNode(MonitorEngine engine, GroupNode engineSystemGroupNode) {
   // 在引擎系统中,添加引擎自身这个节点
   String enginePath = engine.getSystemPath() + "/engine";
   ResourceNode engineNode;
   try {
     nodeService.findByPath(enginePath);
   } catch (Exception e) {
     engineNode = new ResourceNode();
     // 说明该节点是在创建引擎后被级联自动创建的
     engineNode.cascadeCreating();
     engineNode.setResource(engine);
     engineNode.setPath(enginePath);
     engineNode.setLabel(engine.getLabel());
     engineNode.setIcon("monitor_engine");
     engineNode.setState(State.Running);
     engineNode.setComment("Auto created engine node for " + engine.getLabel());
     try {
       nodeService.create(engineSystemGroupNode, engineNode);
     } catch (NodeException ex) {
       throw new ApplicationContextException("Can't auto create engine node", ex);
     }
   }
 }
 void cleanupEngineHost(MonitorEngine engine) throws ResourceException {
   Host host = engine.getHost();
   // TODO 如果是默认引擎所在的主机,其还与监控服务器,以及其他应用存在RunAt关系这些关系还没清除掉
   //  最终逻辑,应该是监控引擎删除/尝试删除所依赖的组件(存在server的情况下删除不掉)
   //  而后删除 引擎 + 主机的 RunAt关系
   //  尝试删除主机(但是由于未能将server, mysql, redis等组件删除,所以主机存在关系,无法删除)
   if (host != null) {
     LinkService linkService = serviceLocator.locateLinkService(LinkType.RunOn.name());
     if (linkService == null)
       throw new IllegalStateException(
           "Can't find link service for link type = " + LinkType.RunOn);
     linkService.unlink(engine, host, LinkType.RunOn);
     //noinspection unchecked
     HostService<Host> hostService = (HostService<Host>) serviceLocator.locate(host.getType());
     try {
       hostService.delete(host);
     } catch (ResourceException e) {
       logger.warn("Can't delete the engine host, because of there are some legacy links ", e);
     }
   }
 }
示例#11
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 @Override
 public MonitorEngine register(MonitorEngine engine) throws ResourceException {
   // 先执行自动批准动作
   performApproval(engine);
   // 如果是从监控服务器下载下来的引擎,关联了相应的engine id,则直接更新
   if (StringUtils.isNotBlank(engine.getEngineId())) {
     MonitorEngine legacy = findByEngineId(engine.getEngineId());
     // id/name/label 保留数据库中的值
     engine.setId(legacy.getId());
     engine.setName(legacy.getName());
     engine.setLabel(legacy.getLabel());
     // properties 合并
     if (legacy.getProperties() != null) {
       if (engine.getProperties() == null) {
         engine.setProperties(legacy.getProperties());
       } else {
         engine.getProperties().putAll(legacy.getProperties());
       }
     }
     return update(legacy, engine);
   } else if (isDefault(engine)) { // 还有一种常见情况,就是缺省引擎(与监控服务器安装在同一个地址),而后没有配置engineId
     MonitorEngine defaultEngine = getRepository().findDefaultEngine();
     engine.setEngineId(defaultEngine.getEngineId());
     return update(defaultEngine, engine);
   } else {
     // 否则创建一个新的实例
     return create(engine);
   }
 }
示例#12
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 void approveIt(MonitorEngine engine) {
   engine.setApproveStatus(ApproveStatus.Approved);
   engine.setApiToken(UUID.randomUUID().toString());
 }
示例#13
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 @Override
 public MonitorEngine reject(MonitorEngine engine) throws ResourceException {
   engine.setApproveStatus(ApproveStatus.Rejected);
   engine.setApiToken(null); // 防止提交进来
   return update(engine);
 }
示例#14
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 /**
  * 判断某个引擎是否需要自动批准
  *
  * @param engine 被判断的引擎
  * @return 是否需要自动批准
  */
 protected boolean isAutoApprove(MonitorEngine engine) {
   // 增加一个自动批准的机制,便于集成测试
   return engine.getProperty("autoApproveForIntegration", "false").equals("true");
 }
示例#15
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 /**
  *
  *
  * <h2>实际执行添加引擎的动作</h2>
  *
  * <p>有如下添加方式(对应两种情况):
  *
  * <ol>
  *   <li>管理员通过界面主动新建一个监控引擎(而后由脚本安装) 用户输入了如下信息
  *       <ul>
  *         <li>引擎路径(安装目标路径)
  *         <li>引擎地址(也是主机地址)
  *         <li>主机类型
  *         <li>主机登录信息
  *       </ul>
  *       程序在本步骤保持新的引擎对象以及其所在主机信息之后,后继应该使用该主机信息,将引擎安装到相应目录去
  *   <li>用户在特定机器上安装引擎(而后引擎启动时,通过监控服务器SPI自动注册)
  *       <ul>
  *         <li>引擎路径(安装目标路径)
  *         <li>引擎地址(也是主机地址)
  *         <li>进程pids
  *         <li>主机类型
  *       </ul>
  * </ol>
  *
  * 开发者可以通过监控引擎是否有pids值判断是否是界面输入的监控引擎
  *
  * @param engine 新注册的引擎对象
  * @throws ResourceException
  */
 @Override
 protected void performCreate(MonitorEngine engine) throws ResourceException {
   boolean manual;
   manual = engine.getPids() == null || engine.getPids().isEmpty();
   // 新建的引擎,没有真的引擎实例与之关联,所以,必定 不可用, 待批准
   engine.setEngineId(UUID.randomUUID().toString());
   engine.setAvailability(Availability.Unavailable);
   engine.setConfigStatus(ConfigStatus.Unknown);
   engine.setPerformance(Performance.Unknown);
   engine.setApproveStatus(ApproveStatus.Requested);
   // 没有预先创建,自动注册的监控引擎没有name,需要为其生成
   // @see dnt.monitor.engine.support.IdentityManager#createLocalEngine(String)
   if (StringUtils.isBlank(engine.getName())) {
     int maxPending = getRepository().countMaxPending();
     maxPending++;
     engine.setLabel("新监控引擎#" + maxPending);
     String name = "pending_" + maxPending;
     engine.setName(name);
     engine.setApiToken(null); // 防止提交进来
   }
   // 本函数中没有包括创建该引擎所在主机,这个动作是在引擎创建后,
   // 由 SetupEngineAfterCreation这个handler完成
   logger.debug(
       "An engine from {} created in {} mode", engine.getAddress(), (manual ? "manual" : "auto"));
   super.performCreate(engine);
 }