content: /**
   * Copyright The Apache Software Foundation
   *
   * 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 com.alibaba.wasp.master.metrics;
  
  /**
   * This is the interface that will expose information to hadoop implementations
   * of the MetricsMasterSource.
   */
  public interface MetricsMasterWrapper {
  
    /**
     * Get ServerName
     */
    String getServerName();
  
    /**
     * Get Average Load
     * 
     * @return Average Load
     */
    double getAverageLoad();
  
    /**
     * Get the Cluster ID
     * 
     * @return Cluster ID
     */
    String getClusterId();
  
    /**
     * Get the Zookeeper Quorum Info
     * 
     * @return Zookeeper Quorum Info
     */
    String getZookeeperQuorum();
  
    /**
     * Get hbase master start time
     * 
     * @return Start time of master in milliseconds
     */
    long getStartTime();
  
    /**
     * Get the hbase master active time
     * 
     * @return Time in milliseconds when master became active
     */
    long getActiveTime();
  
    /**
     * Whether this master is the active master
     * 
     * @return True if this is the active master
     */
    boolean getIsActiveMaster();
  
    /**
     * Get the live fservers
     * 
     * @return Live fservers
     */
    int getFServers();
  
    /**
     * Get the dead fservers
     * 
     * @return Dead fservers
     */
    int getDeadFServers();
  }
  