package org.apache.helix.model;
   
   /*
    * 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.
   */
  
  import org.apache.helix.HelixProperty;
  import org.apache.helix.ZNRecord;
  import org.apache.log4j.Logger;
  
  
  /**
   * Instance that connects to zookeeper
   */
  public class LiveInstance extends HelixProperty
  {
    public enum LiveInstanceProperty
    {
      SESSION_ID,
      HELIX_VERSION,
      LIVE_INSTANCE,
      ZKPROPERTYTRANSFERURL
    }
  
    private static final Logger _logger = Logger.getLogger(LiveInstance.class.getName());
  
    public LiveInstance(String id)
    {
      super(id);
    }
  
    public LiveInstance(ZNRecord record)
    {
      super(record);
    }
  
    public void setSessionId(String sessionId)
    {
      _record.setSimpleField(LiveInstanceProperty.SESSION_ID.toString(), sessionId);
    }
  
    public String getSessionId()
    {
      return _record.getSimpleField(LiveInstanceProperty.SESSION_ID.toString());
    }
  
    public String getInstanceName()
    {
      return _record.getId();
    }
  
    public String getHelixVersion()
    {
      return _record.getSimpleField(LiveInstanceProperty.HELIX_VERSION.toString());
    }
  
    public void setHelixVersion(String helixVersion)
    {
      _record.setSimpleField(LiveInstanceProperty.HELIX_VERSION.toString(), helixVersion);
    }
  
    public String getLiveInstance()
    {
      return _record.getSimpleField(LiveInstanceProperty.LIVE_INSTANCE.toString());
    }
  
    public void setLiveInstance(String leader)
    {
      _record.setSimpleField(LiveInstanceProperty.LIVE_INSTANCE.toString(), leader);
    }
  
    public long getModifiedTime()
    {
      return _record.getModifiedTime();
    }
    
    public String getWebserviceUrl()
    {
      return _record.getSimpleField(LiveInstanceProperty.ZKPROPERTYTRANSFERURL.toString());
    }
    
    public void setWebserviceUrl(String url)
    {
      _record.setSimpleField(LiveInstanceProperty.ZKPROPERTYTRANSFERURL.toString(), url);
   }
   @Override
   public boolean isValid()
   {
     if(getSessionId() == null)
     {
       _logger.error("liveInstance does not have session id. id:" + _record.getId());
       return false;
     }
     if(getHelixVersion() == null)
     {
       _logger.error("liveInstance does not have CLM verion. id:" + _record.getId());
       return false;
     }
     return true;
   }
 }