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
  // 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 com.cloud.usage.parser;
  
  import com.cloud.usage.dao.UsageDao;
  import com.cloud.user.AccountVO;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  import javax.inject.Inject;
  import java.util.Date;
  
  public abstract class UsageParser {
      Logger logger = LogManager.getLogger(getClass());
  
      @Inject
      UsageDao usageDao;
  
      private void beforeParse(AccountVO account) {
          logger.debug("Parsing all {} usage events for account: [{}]", getParserName(), account);
      }
  
      public abstract String getParserName();
  
      protected abstract boolean parse(AccountVO account, Date startDate, Date endDate);
  
      public boolean doParsing(AccountVO account, Date startDate, Date endDate) {
          beforeParse(account);
          return parse(account, startDate, endDate);
      }
  }
  