content: /*
   * 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.ambari.server.agent.stomp;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  import java.util.Map;
  
  import jakarta.inject.Provider;
  import jakarta.ws.rs.WebApplicationException;
  
  import org.apache.ambari.server.AmbariException;
  import org.apache.ambari.server.HostNotRegisteredException;
  import org.apache.ambari.server.agent.AgentReportsProcessor;
  import org.apache.ambari.server.agent.AgentSessionManager;
  import org.apache.ambari.server.agent.CommandReport;
  import org.apache.ambari.server.agent.CommandStatusAgentReport;
  import org.apache.ambari.server.agent.ComponentStatus;
  import org.apache.ambari.server.agent.ComponentStatusAgentReport;
  import org.apache.ambari.server.agent.ComponentVersionAgentReport;
  import org.apache.ambari.server.agent.HeartBeatHandler;
  import org.apache.ambari.server.agent.HostStatusAgentReport;
  import org.apache.ambari.server.agent.stomp.dto.AckReport;
  import org.apache.ambari.server.agent.stomp.dto.CommandStatusReports;
  import org.apache.ambari.server.agent.stomp.dto.ComponentStatusReport;
  import org.apache.ambari.server.agent.stomp.dto.ComponentStatusReports;
  import org.apache.ambari.server.agent.stomp.dto.ComponentVersionReports;
  import org.apache.ambari.server.agent.stomp.dto.HostStatusReport;
  import org.apache.ambari.server.events.DefaultMessageEmitter;
  import org.apache.ambari.server.state.Alert;
  import org.apache.ambari.server.state.fsm.InvalidStateTransitionException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.messaging.handler.annotation.Header;
  import org.springframework.messaging.handler.annotation.MessageMapping;
  import org.springframework.messaging.simp.annotation.SendToUser;
  import org.springframework.stereotype.Controller;
  
  import com.google.inject.Injector;
  
  @Controller
  @SendToUser("/")
  @MessageMapping("/reports")
  public class AgentReportsController {
    private static final Logger LOG = LoggerFactory.getLogger(AgentReportsController.class);
  
    @Autowired
    private Provider<DefaultMessageEmitter> defaultMessageEmitterProvider;
  
    private final HeartBeatHandler hh;
    private final AgentSessionManager agentSessionManager;
    private final AgentReportsProcessor agentReportsProcessor;
  
    public AgentReportsController(Injector injector) {
      hh = injector.getInstance(HeartBeatHandler.class);
      agentSessionManager = injector.getInstance(AgentSessionManager.class);
      agentReportsProcessor = injector.getInstance(AgentReportsProcessor.class);
    }
  
    @MessageMapping("/component_version")
    public ReportsResponse handleComponentVersionReport(@Header String simpSessionId, ComponentVersionReports message)
        throws WebApplicationException, InvalidStateTransitionException, AmbariException {
  
      agentReportsProcessor.addAgentReport(new ComponentVersionAgentReport(hh,
          agentSessionManager.getHost(simpSessionId).getHostName(), message));
      return new ReportsResponse();
    }
  
    @MessageMapping("/component_status")
    public ReportsResponse handleComponentReportStatus(@Header String simpSessionId, ComponentStatusReports message)
        throws WebApplicationException, InvalidStateTransitionException, AmbariException {
      List<ComponentStatus> statuses = new ArrayList<>();
      for (Map.Entry<String, List<ComponentStatusReport>> clusterReport : message.getComponentStatusReports().entrySet()) {
        for (ComponentStatusReport report : clusterReport.getValue()) {
          ComponentStatus componentStatus = new ComponentStatus();
          componentStatus.setClusterId(report.getClusterId());
          componentStatus.setComponentName(report.getComponentName());
          componentStatus.setServiceName(report.getServiceName());
          componentStatus.setStatus(report.getStatus());
          statuses.add(componentStatus);
        }
      }
  
      agentReportsProcessor.addAgentReport(new ComponentStatusAgentReport(hh,
          agentSessionManager.getHost(simpSessionId).getHostName(), statuses));
      return new ReportsResponse();
    }
  
    @MessageMapping("/commands_status")
    public ReportsResponse handleCommandReportStatus(@Header String simpSessionId, CommandStatusReports message)
        throws WebApplicationException, InvalidStateTransitionException, AmbariException {
      List<CommandReport> statuses = new ArrayList<>();
      for (Map.Entry<String, List<CommandReport>> clusterReport : message.getClustersComponentReports().entrySet()) {
        statuses.addAll(clusterReport.getValue());
      }
  
      agentReportsProcessor.addAgentReport(new CommandStatusAgentReport(hh,
          agentSessionManager.getHost(simpSessionId).getHostName(), statuses));
      return new ReportsResponse();
    }
  
    @MessageMapping("/host_status")
    public ReportsResponse handleHostReportStatus(@Header String simpSessionId, HostStatusReport message) throws AmbariException {
      agentReportsProcessor.addAgentReport(new HostStatusAgentReport(hh,
          agentSessionManager.getHost(simpSessionId).getHostName(), message));
      return new ReportsResponse();
    }
  
    @MessageMapping("/alerts_status")
    public ReportsResponse handleAlertsStatus(@Header String simpSessionId, Alert[] message) throws AmbariException {
      String hostName = agentSessionManager.getHost(simpSessionId).getHostName();
      List<Alert> alerts = Arrays.asList(message);
      LOG.debug("Handling {} alerts status for host {}", alerts.size(), hostName);
      hh.getHeartbeatProcessor().processAlerts(hostName, alerts);
      return new ReportsResponse();
    }
  
    @MessageMapping("/responses")
    public ReportsResponse handleReceiveReport(@Header String simpSessionId, AckReport ackReport) throws HostNotRegisteredException {
      Long hostId = agentSessionManager.getHost(simpSessionId).getHostId();
      LOG.debug("Handling agent receive report for execution message with messageId {}, status {}, reason {}",
          ackReport.getMessageId(), ackReport.getStatus(), ackReport.getReason());
      defaultMessageEmitterProvider.get().processReceiveReport(hostId, ackReport);
      return new ReportsResponse();
    }
  
  }
  