accountmanagerimpl.java

主要考察的是资源池的设计和实现

package ServerImpl;
import org.omg.CORBA.Object;

import ServerImpl.*;
import Bank.*;

public class AccountManagerImpl extends AccountManagerPOA {
   public AccountManagerImpl(){}
   public Account getAccountById(String id) throws UserNotExitsException {
       ServerConfigure.setPOA(_default_POA());
       AccountImpl servant = null;
       Account account = null; 
       try{
           if(ServerConfigure.pooling==false)
               servant=AccountImpl.getAccount(id);
           else{
               servant=(AccountImpl)(AccountPool.getInstance().findResource(id));
           }
       }catch(UserNotExitsException e){
           throw e;
       }catch(Exception e){
           e.printStackTrace();
       }
       if(servant==null) throw new UserNotExitsException();
       try{          
           Object obj = _default_POA().servant_to_reference(servant);
           account=AccountHelper.narrow(obj);
       }catch(Exception e){
           e.printStackTrace();
       }
       return account;
    }

}