code: /*
   * 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.skywalking.oap.server.core.alarm.provider.wechat;
  
  import lombok.RequiredArgsConstructor;
  import lombok.extern.slf4j.Slf4j;
  import org.apache.skywalking.oap.server.core.alarm.AlarmMessage;
  import org.apache.skywalking.oap.server.core.alarm.HttpAlarmCallback;
  import org.apache.skywalking.oap.server.core.alarm.provider.AlarmRulesWatcher;
  
  import java.net.URI;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Use SkyWalking alarm wechat webhook API.
   */
  @Slf4j
  @RequiredArgsConstructor
  public class WechatHookCallback extends HttpAlarmCallback {
      private final AlarmRulesWatcher alarmRulesWatcher;
  
      @Override
      public void doAlarm(List<AlarmMessage> alarmMessages) throws Exception {
          if (alarmRulesWatcher.getWechatSettings() == null || alarmRulesWatcher.getWechatSettings().getWebhooks().isEmpty()) {
              return;
          }
          for (final var url : alarmRulesWatcher.getWechatSettings().getWebhooks()) {
              for (final var alarmMessage : alarmMessages) {
                  final var requestBody = String.format(
                          alarmRulesWatcher.getWechatSettings().getTextTemplate(), alarmMessage.getAlarmMessage()
                  );
                  post(URI.create(url), requestBody, Map.of());
              }
          }
      }
  }
  