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;
  
  import com.google.common.base.Charsets;
  import com.google.gson.Gson;
  import org.apache.skywalking.oap.server.core.CoreModule;
  import org.apache.skywalking.oap.server.core.analysis.TimeBucket;
  import org.apache.skywalking.oap.server.core.analysis.manual.searchtag.Tag;
  import org.apache.skywalking.oap.server.core.analysis.worker.RecordStreamProcessor;
  import org.apache.skywalking.oap.server.core.config.ConfigService;
  import org.apache.skywalking.oap.server.library.module.ModuleManager;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashSet;
  import java.util.List;
  
  /**
   * Save the alarm info into storage for UI query.
   */
  public class AlarmStandardPersistence implements AlarmCallback {
  
      private static final Logger LOGGER = LoggerFactory.getLogger(AlarmStandardPersistence.class);
      private final Gson gson = new Gson();
      private final ModuleManager manager;
  
      public AlarmStandardPersistence(ModuleManager manager) {
          this.manager = manager;
      }
  
      @Override
      public void doAlarm(List<AlarmMessage> alarmMessage) {
          alarmMessage.forEach(message -> {
              if (LOGGER.isDebugEnabled()) {
                  LOGGER.debug("Alarm message: {}", message.getAlarmMessage());
              }
  
              AlarmRecord record = new AlarmRecord();
              record.setScope(message.getScopeId());
              record.setId0(message.getId0());
              record.setId1(message.getId1());
              record.setName(message.getName());
              record.setAlarmMessage(message.getAlarmMessage());
              record.setStartTime(message.getStartTime());
              record.setTimeBucket(TimeBucket.getRecordTimeBucket(message.getStartTime()));
              record.setRuleName(message.getRuleName());
              Collection<Tag> tags = appendSearchableTags(message.getTags());
              record.setTagsRawData(gson.toJson(message.getTags()).getBytes(Charsets.UTF_8));
              record.setTagsInString(Tag.Util.toStringList(new ArrayList<>(tags)));
              RecordStreamProcessor.getInstance().in(record);
          });
      }
  
      private Collection<Tag> appendSearchableTags(List<Tag> tags) {
          final ConfigService configService = manager.find(CoreModule.NAME)
                  .provider()
                  .getService(ConfigService.class);
          HashSet<Tag> alarmTags = new HashSet<>();
          tags.forEach(tag -> {
              if (configService.getSearchableAlarmTags().contains(tag.getKey())) {
                  final Tag alarmTag = new Tag(tag.getKey(), tag.getValue());
  
                  if (tag.getValue().length()  > Tag.TAG_LENGTH || alarmTag.toString().length() > Tag.TAG_LENGTH) {
                      if (LOGGER.isDebugEnabled()) {
                          LOGGER.debug("Alarm tag : {} length > : {}, dropped", alarmTag, Tag.TAG_LENGTH);
                      }
                      return;
                  }
                  alarmTags.add(alarmTag);
              }
          });
          return alarmTags;
      }
  }
  