agendaimpl.java

议程服务系统

import java.rmi.RemoteException; 
import java.rmi.server.UnicastRemoteObject;
import java.util.*;

public class AgendaImpl extends UnicastRemoteObject implements AgendaInterface{

    public AgendaImpl() throws RemoteException{
		
	}
    
    
    public String register(String userID, String password) throws RemoteException{
    	
    	//判断用户是否存在
    	int flag = 0; 
    	
		System.out.println("invoke function register.");
    	if(Server.userList.isEmpty()){
    		User userNew = new User();
        	userNew.setUserID(userID);
        	userNew.setPassword(password);
        	Server.userList.add(userNew);
        	return "register success";
    	}
    	else{
    		for(Iterator<User> it = Server.userList.iterator(); it.hasNext();){  
        	    User userOld = it.next();
    	        if(userID.compareTo(userOld.getUserID()) == 0){
    	        	flag = 1;
    	        	return "register fail";
    	        }
    	    }
    	}
    	if(flag == 0){
    		User userNew = new User();
        	userNew.setUserID(userID);
        	userNew.setPassword(password);
        	Server.userList.add(userNew);
        	return "register success";
    	}
    	return "hello"; //useful?
    }
    
    
    
    public String addAgenda(Calendar start, Calendar end, String userInit, String userSched, String password) throws RemoteException{

        System.out.println("invoke function addConf.");
    	int flagT = 1;
    	if(Server.userList.isEmpty()){   		
        	return "Nonexist user initialing the conference";       	
    	}
    	else{
    		for(Iterator<User> it1 = Server.userList.iterator(); it1.hasNext();){  
        	    User userInitL = it1.next();
    	        if(userInit.compareTo(userInitL.getUserID()) == 0 && password.compareTo(userInitL.getPassword()) == 0){      
    	        	if(!(userInitL.getConfList().isEmpty())){
    	        		for(Iterator<Agenda> it2 = userInitL.getConfList().iterator(); it2.hasNext();){  
        	        	    Agenda agenda = it2.next();
        	        	    if((agenda.getStartD().compareTo(start) <= 0 && agenda.getEndD().compareTo(start) >= 0) || (agenda.getStartD().compareTo(end) <= 0 && agenda.getEndD().compareTo(end) >= 0)){        
        	        	    	flagT = 0;
        	        	    	break;
        	        	    }
        	        	 }
    	        	}
    	        	
    	            if(flagT == 1){
    	        	    for(Iterator<User> it3 = Server.userList.iterator(); it3.hasNext();){
        	        	    User userSchedL = it3.next();
        	        	    if(userSched.compareTo(userSchedL.getUserID()) == 0){
        	        	    	if(userSchedL.getConfList().isEmpty()){
        	        	    		Agenda agendaNew = new Agenda();
            	        	    	agendaNew.setEndD(end);
            	        	    	agendaNew.setStartD(start);
            	        	    	agendaNew.setUserInit(userInit);
            	        	    	agendaNew.setUserSched(userSched);
            	        	    	userInitL.addAgenda(agendaNew);
            	        	        userSchedL.addAgenda(agendaNew);
            	        	    	return "Add conf success";
        	        	    	}
        	        	    	for(Iterator<Agenda> it4 = userSchedL.getConfList().iterator(); it4.hasNext();){  
                	        	    Agenda conf = it4.next();
                	        	    if(!((conf.getStartD().compareTo(start) <= 0 && conf.getEndD().compareTo(start) >= 0) || (conf.getStartD().compareTo(end) <= 0 && conf.getEndD().compareTo(end) >= 0))){
                	        	    	Agenda agendaNew = new Agenda();
                	        	    	agendaNew.setEndD(end);
                	        	    	agendaNew.setStartD(start);
                	        	    	agendaNew.setUserInit(userInit);
                	        	    	agendaNew.setUserSched(userSched);
                	        	    	userInitL.addAgenda(agendaNew);
                	        	        userSchedL.addAgenda(agendaNew);
                	        	    	return "Add conf success";
                	        	    }
                	        	 }
        	        	    }
        	        	}
    	        	}
    	        		
    	        }
    	    }
    	}
    	return "Add conf fail";
    }

    
    public List<Agenda> checkAgenda(int flagC, Calendar start, Calendar end, String userID) throws RemoteException{
    	
    	List<Agenda> retList = new ArrayList<Agenda>();
    	
		System.out.println("invoke function checkConf.");
    	switch(flagC){
    	case 1:
    		if(Server.userList.isEmpty()){ 
        		Agenda temp = new Agenda();
        		temp.setconfID(0);
        		retList.add(temp);
        	}
        	else{
        		for(Iterator<User> it = Server.userList.iterator(); it.hasNext();){  
            	    User userL = it.next();
        	        if(userID.compareTo(userL.getUserID()) == 0){
        	        		 return userL.getConfList();
        	        }
        	    }
        	}
        	return retList;
        default:
        	if(Server.userList.isEmpty()){ 
        		Agenda temp = new Agenda();
        		temp.setconfID(0);
        		retList.add(temp);
        	}
        	else{
        		for(Iterator<User> it1 = Server.userList.iterator(); it1.hasNext();){  
            	    User userInitL = it1.next();
            	    if(userID.compareTo(userInitL.getUserID()) == 0){
            	    	for(Iterator<Agenda> it2 = userInitL.getConfList().iterator(); it2.hasNext();){  
        	        	    Agenda conf = it2.next();
        	        	    if(conf.getStartD().compareTo(start) >= 0 && conf.getEndD().compareTo(end) <= 0){
        	        	    	retList.add(conf);
        	        	    }
        	        	}
   	                  }  	        		
        	       }
        	    }
             return retList; 
        	}     	 
    }
    
    
    public String DeleteAgenda(int confID, String userID, String password) throws RemoteException{
    	String userSched = new String();
		System.out.println("invoke function deleteConf.");
    	if(Server.userList.isEmpty()){   		
        	return "No user exist";       	
    	}
    	else{
    		for(Iterator<User> it = Server.userList.iterator(); it.hasNext();){  
        	    User userInitL = it.next();
    	        if(userID.compareTo(userInitL.getUserID()) == 0 && password.compareTo(userInitL.getPassword()) == 0){
    	        	if(!(userInitL.getConfList().isEmpty())){
    	        		for(Iterator<Agenda> it2 = userInitL.getConfList().iterator(); it2.hasNext();){  
        	        	    Agenda conf = it2.next();
        	        	    if(conf.getConfID() == confID){
        	        	    	userSched = conf.getUserSched();
        	        	        userInitL.getConfList().remove(conf); //There is a problem here. shallow clone?
        	        	    	break;
        	        	    }
        	        	 }
    	        	}
    	        	else{
    	        		return ("The" + userID + "has no conference");
    	        	}	
    	        break;
    	        }
    	    }
    		
    	}
    	return "Delete fail";
    }
   
    
    public String ClearAgenda(String userID,String password,int sum) throws RemoteException{
    	String judge = new String();
		System.out.println("invoke function clearConf.");
    	if(Server.userList.isEmpty()){   		
        	return "No user exist";       	
    	}
    	else{
    		for(int i = 1; i <= sum; i++){
    			judge = DeleteAgenda(i, userID, password);
    		}
			return "Clear complete";
    		/*if(judge.compareTo("Delete fail") == 0){
    			return "Clear fail";
    		}
    		else{
    			return "Clear success";
    		}*/
    	}
    } 

}