content: package com.taobao.taokeeper.monitor.web;
  import static common.toolkit.java.constant.EmptyObjectConstant.EMPTY_STRING;
  import static common.toolkit.java.constant.SymbolConstant.COLON;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.servlet.ModelAndView;
  
  import com.taobao.taokeeper.common.GlobalInstance;
  import com.taobao.taokeeper.model.ZooKeeperCluster;
  import common.toolkit.java.entity.HostPerformanceEntity;
  import common.toolkit.java.exception.DaoException;
  import common.toolkit.java.util.StringUtil;
  import common.toolkit.java.util.io.ServletUtil;
  
  /**
   * @author yinshi.nc@taobao.com
   * @since 2011-08-10
   */
  @Controller
  @RequestMapping("/hostPerformance.do")
  public class HostPerformanceController extends BaseController {
  	
  	@RequestMapping(params = "method=showHostPerformancePAGE")
  	public ModelAndView showSystemPerformancePAGE(HttpServletRequest request, HttpServletResponse response, String clusterId ) {
  
  		clusterId = StringUtil.defaultIfBlank( clusterId, 1 + EMPTY_STRING );
  		
  		try {
  			Map<Integer, ZooKeeperCluster > zooKeeperClusterMap = GlobalInstance.getAllZooKeeperCluster();
  			ZooKeeperCluster zooKeeperCluster = GlobalInstance.getZooKeeperClusterByClusterId( Integer.parseInt( clusterId) );
  			Map<String, HostPerformanceEntity> hostPerformanceEntityMap = new HashMap< String, HostPerformanceEntity >();
  			if( null == zooKeeperCluster ){
  				zooKeeperCluster = zooKeeperClusterDAO.getZooKeeperClusterByCulsterId( Integer.parseInt( clusterId) );
  			}
  			if( null ==  zooKeeperCluster ){
  				ServletUtil.writeToResponse( response, "目前还没有这样的ZK集群<a href='zooKeeper.do?method=zooKeeperRegisterPAGE'><font color='red'> 加入监控</font></a>" );
  				return null;
  			}
  			
  			
  			//进行系统数据采集
  			List<String> serverList = zooKeeperCluster.getServerList();
  			if( null != serverList ){
  				for( String server : serverList ){
  					String ip = StringUtil.trimToEmpty( server.split( COLON )[0] );
  					hostPerformanceEntityMap.put( ip, GlobalInstance.getHostPerformanceEntity( ip ) );
  				}
  			}
  			
  			Map<String, Object> model = new HashMap<String, Object>();
  			model.put( "hostPerformanceEntityMap", hostPerformanceEntityMap );
  			model.put( "zooKeeperClusterMap", zooKeeperClusterMap );
  			model.put( "description", zooKeeperCluster.getDescription() );
  			model.put("clusterId", zooKeeperCluster.getClusterId() );
  			model.put( "timeOfUpdateHostPerformanceSet", GlobalInstance.timeOfUpdateHostPerformanceSet );
  			return new ModelAndView("monitor/showHostPerformancePAGE", model );
  		} catch ( NumberFormatException e ) {
  			// TODO Auto-generated catch block
  			e.printStackTrace();
  		} catch ( DaoException e ) {
  			// TODO Auto-generated catch block
  			e.printStackTrace();
  		} catch ( Exception e ) {
  			// TODO Auto-generated catch block
  			e.printStackTrace();
  		}
  		
  		return null;
  		
  	}
  
  }
  