content: package act.monitor;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2018 ActFramework
   * %%
   * 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.
   * #L%
   */
  
  import act.Act;
  import act.conf.AppConfig;
  import act.controller.annotation.Port;
  import act.controller.annotation.UrlContext;
  import org.osgl.inject.annotation.TypeOf;
  import org.osgl.mvc.annotation.GetAction;
  import org.osgl.util.E;
  
  import java.util.*;
  import java.util.concurrent.TimeUnit;
  import javax.inject.Singleton;
  
  @Singleton
  @UrlContext("probes")
  @Port(AppConfig.PORT_SYS)
  public class Monitor implements Runnable {
  
      @TypeOf(Probe.class)
      private List<Probe> probes;
  
      Map<String, Map<String, Object>> currentStatus = new HashMap<>();
  
      public Monitor() {
          if (Act.app().config().monitorEnabled()) {
              Act.app().jobManager().every(this, 5, TimeUnit.SECONDS);
          }
      }
  
      @Override
      public void run() {
          for (Probe probe : probes) {
              Map<String, Object> status = probe.doJob();
              currentStatus.put(probe.id(), status);
          }
      }
  
      @GetAction("{id}")
      public Map<String, Object> get(String id) {
          E.illegalArgumentIf(null == id);
          return currentStatus.get(id);
      }
  
  }
  