addcommand.java

Java编写个人日程管理工具, 具有添加编辑日程和自动适应功能, 程序包含完整的Document和测试运行环境

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package ui;
import java.util.Scanner;
import java.util.StringTokenizer;
import java.util.Calendar;
import java.util.Date;
import logical.AgendaService;
import exception.BadCommandException;
import exception.WrongTimeException;
/**
 * 这个方法是增加命令的类，实现命令的解析和执行，另外输出结果字符串
 * @author zouhao
 */
public class AddCommand extends UserCommand{
    
    Calendar cal;
    int year;
    /**
     * 命令的构造函数
     */
    AddCommand()
    {
        agenda = AgendaService.getInstance();
        year=2008;
        success=false;
        cal=Calendar.getInstance(); 
    }
    /**
     * 解析命令方法，如果命令不符合语法规则，抛出异常
     * @param input 用于解析的命令输入字符串
     */
    public void parse(String input){
        scanner = new Scanner(input);
        StringTokenizer tmp = new StringTokenizer(input);
        try{    
            if(tmp.countTokens()!=7){throw new BadCommandException();}
            if(!scanner.next().equals("add")){throw new BadCommandException();}
            success = true;
        }catch (BadCommandException e){}
        
    }
    /**
     * 执行命令的方法，如果命令执行不成功，抛出异常
     * @return 返回成功与否
     */
    public boolean Execute(){
        if(success)
        {
            try{
                username = scanner.next();
                password = scanner.next();
                String callee = scanner.next();
                StringTokenizer tmp = new StringTokenizer(scanner.next(),"-",false);
                if(tmp.countTokens()!=4){throw new BadCommandException();}
                cal.setLenient(false);
                cal.set(year, Integer.parseInt(tmp.nextToken())-1, Integer.parseInt(tmp.nextToken()),
                        Integer.parseInt(tmp.nextToken()), Integer.parseInt(tmp.nextToken()));
                Date ts = cal.getTime();
                tmp = new StringTokenizer(scanner.next(),"-",false);
                if(tmp.countTokens()!=4){throw new BadCommandException();}
                cal.set(year, Integer.parseInt(tmp.nextToken())-1, Integer.parseInt(tmp.nextToken()), 
                        Integer.parseInt(tmp.nextToken()), Integer.parseInt(tmp.nextToken()));
                Date te = cal.getTime();
                String label = scanner.next();
                if(!agenda.Add(username, password, label, callee, ts, te))success=false;
            }
            catch (IllegalArgumentException e){success=false;new WrongTimeException();}
            catch (Exception e){}
        }
        return success;
    }
    /**
     * 打印方法
     * @return 结果字符串
     */
    public String ToString()
    {
        return agenda.ToString("Meeting");
    }
}