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 com.cloud.resource;
  
  import java.net.URI;
  import java.util.List;
  import java.util.Map;
  
  import com.cloud.exception.DiscoveryException;
  import com.cloud.host.HostVO;
  import com.cloud.hypervisor.Hypervisor;
  import com.cloud.utils.component.Adapter;
  
  /**
   * Discoverer encapsulates interfaces that will discover resources.
   *
   */
  public interface Discoverer extends Adapter {
      /**
       * Given an accessible ip address, find out what it is.
       *
       * @param url
       * @param username
       * @param password
       * @return ServerResource
       */
      Map<? extends ServerResource, Map<String, String>> find(long dcId, Long podId, Long clusterId, URI uri, String username, String password, List<String> hostTags)
          throws DiscoveryException;
  
      void postDiscovery(List<HostVO> hosts, long msId) throws DiscoveryException;
  
      boolean matchHypervisor(String hypervisor);
  
      Hypervisor.HypervisorType getHypervisorType();
  
      public void putParam(Map<String, String> params);
  
      ServerResource reloadResource(HostVO host);
  }
  