batch.java

简单的议程管理的小实验,包含可运行BAT文件和TEST用例

package agenda.command;
import agenda.Exception.*;
import java.io.*;
import java.util.*;

/**
 * Batch command
 * @author wc
 */
public class BATCH implements Command{
    String fileName;
    
    /**
     * Command parse method
     * @param args
     * @throws agenda.Exception.InvalidCommandException
     */
    public void parse(String[] args) throws InvalidCommandException
    {
        if(args.length != 2)
            throw new InvalidCommandException("batch");
        fileName = args[1];
    }
    
    /**
     * Command execute method
     * @throws java.lang.Exception
     */
    public void execute() throws Exception
    {
        try{
            String command = new String();
            CommandFactory factory = new CommandFactory();
            try{
                FileInputStream fis = new FileInputStream(fileName);
                Scanner cin = new Scanner(fis);
                while(cin.hasNextLine()){
                    command = cin.nextLine();
                    if(command.isEmpty()) continue;
                    try{
                        factory.getCommand(command).execute();
                    }
                    catch(Exception e){
                        System.out.println(e.toString());
                    }
                }
            }
            catch(FileNotFoundException fnfe){
                throw new InputFileNotFoundException(fileName);
            }
        }
        catch(Exception e){
            throw e;
        }
    }
}