?? batchcommand.java
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/* * To change this template, choose Tools | Templates * and open the template in the editor. */package ui;import java.io.*;import java.util.Scanner;import java.util.StringTokenizer;import java.util.Calendar;import logical.AgendaService;import exception.IOAndFileException;import exception.BadCommandException;/** * 這個方法是批處理命令的類,實現命令的解析和執行,另外輸出結果字符串 * @author zouhao */public class BatchCommand implements Command{ Scanner scanner; boolean success; Calendar cal; int year; AgendaService agenda; String filename; String command; BufferedReader fileinput ; Show show; /** * 命令的構造函數 */ BatchCommand() { agenda = AgendaService.getInstance(); year=2008; success=false; cal=Calendar.getInstance(); show=Show.getInstance(); } /** * 解析命令方法,如果命令不符合語法規則,拋出異常 * @param input 用于解析的命令輸入字符串 */ public void parse(String input) { scanner = new Scanner(input); StringTokenizer tmp = new StringTokenizer(input); try{ if(tmp.countTokens()!=2){throw new BadCommandException();} if(!scanner.next().equals("batch")){throw new BadCommandException();} success = true; } catch (BadCommandException e){} } /** * 執行命令的方法,如果命令執行不成功,拋出異常 * @return 返回成功與否 */ public boolean Execute(){ if(success) { filename = scanner.next(); try{ fileinput = new BufferedReader(new FileReader(filename)); command = fileinput.readLine(); while(command!=null) { System.out.println("Processing:"+command); command.toLowerCase(); StringTokenizer stringtoken = new StringTokenizer(command); String temp=stringtoken.nextToken(); Command com = CommandFactory.factory(temp); if(com==null) { command = fileinput.readLine(); continue; } com.parse(command); success = com.Execute(); if(success) { System.out.println("success to "+temp+"!"); } else {System.out.println("Fail to "+temp+"!");} show.ToShow(com.ToString()); command = fileinput.readLine(); } } catch (FileNotFoundException e){new IOAndFileException(e);} catch (IOException e){new IOAndFileException(e); } } return success; } /** * 打印方法 * @return 結果字符串 */ public String ToString() { return ""; }}
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