www.pudn.com > ProcessDeployProject.rar > MainUI.java
/**
* MainUI类
* 带main()入口方法
* @author linpeitian
*/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MainUI extends JFrame implements ActionListener{
/**
* UI组件
*/
public JButton confirm = null; //接受进程数目及时间片大小确认按钮
public JTextField processNumField = null; //输入进程数目域
public JTextField timeField = null; //输入时间片大小域
public JTextField processNameField = null; //输入进程名域
public JTextField processStartField = null; //输入进程开始时间域
public JTextField processLenField = null; //输入进程耗时域
public JButton reset = null; //重置按钮
public JButton submit = null; //进程提交按钮
public JButton runSubmit = null; //进程调度运行按钮
public JTextArea area = null; //进程具体调度显示屏
public JLabel timeSys = null; //具体耗时显示
public JLabel status = null; //具体状态显示
private JSeparator separator = null;
/**
* 逻辑控制
*/
public int number = 0; //进程数
public int timeblock = 0; //时间片
public int threadNum = 0;
public SubThread subThread[] = new SubThread[20]; //线程
public MainThread mainThread = null; //主线程
/**
* 构造函数
* 主要负责图形界面的构建
*/
public MainUI(){
super("进程调度模拟");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//具体布局 GridBagLayout布局方式
GridBagConstraints cst = null;
GridBagLayout layout = new GridBagLayout();
getContentPane().setLayout(layout);
confirm = new JButton("确定");
confirm.addActionListener(this);
cst = new GridBagConstraints();
cst.gridwidth = 1;
cst.gridheight = 2;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(confirm, cst);
getContentPane().add(confirm);
JLabel processNumLabel = new JLabel("进程数目:");
cst = new GridBagConstraints();
cst.anchor = GridBagConstraints.CENTER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(processNumLabel, cst);
getContentPane().add(processNumLabel);
processNumField = new JTextField(15);
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(processNumField, cst);
getContentPane().add(processNumField);
JLabel timeLabel = new JLabel("时间片值:");
cst = new GridBagConstraints();
cst.anchor = GridBagConstraints.CENTER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(timeLabel, cst);
getContentPane().add(timeLabel);
timeField = new JTextField(15);
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(timeField, cst);
getContentPane().add(timeField);
separator = new JSeparator();
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(separator, cst);
getContentPane().add(separator);
JLabel processNameLabel = new JLabel("进程名称:");
cst = new GridBagConstraints();
cst.anchor = GridBagConstraints.EAST;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(processNameLabel, cst);
getContentPane().add(processNameLabel);
processNameField = new JTextField();
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(processNameField, cst);
getContentPane().add(processNameField);
JLabel processStartLabel = new JLabel("到达时间:");
cst = new GridBagConstraints();
cst.anchor = GridBagConstraints.EAST;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(processStartLabel, cst);
getContentPane().add(processStartLabel);
processStartField = new JTextField();
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(processStartField, cst);
getContentPane().add(processStartField);
JLabel processLenLabel = new JLabel("运行时间:");
cst = new GridBagConstraints();
cst.anchor = GridBagConstraints.EAST;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(processLenLabel, cst);
getContentPane().add(processLenLabel);
processLenField = new JTextField();
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(processLenField, cst);
getContentPane().add(processLenField);
reset = new JButton("重置");
reset.addActionListener(this);
cst = new GridBagConstraints();
cst.anchor = GridBagConstraints.EAST;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(reset, cst);
getContentPane().add(reset);
submit = new JButton("提交进程");
submit.addActionListener(this);
cst = new GridBagConstraints();
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(submit, cst);
getContentPane().add(submit);
runSubmit = new JButton("运行进程");
runSubmit.addActionListener(this);
cst = new GridBagConstraints();
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(runSubmit, cst);
getContentPane().add(runSubmit);
separator = new JSeparator();
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(separator, cst);
getContentPane().add(separator);
area = new JTextArea(10, 40);
area.setEditable(false);
cst = new GridBagConstraints();
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(area, cst);
getContentPane().add(area);
timeSys = new JLabel("");
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(timeSys, cst);
getContentPane().add(timeSys);
status = new JLabel("");
cst = new GridBagConstraints();
cst.fill = GridBagConstraints.HORIZONTAL;
cst.gridwidth = GridBagConstraints.REMAINDER;
cst.insets = new Insets(5, 5, 5, 5);
layout.setConstraints(status, cst);
getContentPane().add(status);
setSize(550, 510);
setResizable(false);
setVisible(true);
//复位操作
resetDone();
}
/**
* ActionEvent 事件处理
*/
public void actionPerformed(ActionEvent e){
Object oj = e.getSource();
if(oj == confirm){
//确认输入进程数以及时间片大小按钮事件
if(processNumField.getText().trim().equals("")||timeField.getText().trim().equals("")){
//输入为空处理
JOptionPane.showMessageDialog(this,
"请输入进程数目或者时间片为空!!",
"出错",
JOptionPane.ERROR_MESSAGE);
}else{
try{
number = Integer.parseInt(processNumField.getText());
timeblock = Integer.parseInt(timeField.getText());
//逻辑合法性验证
if(number <= 0 || number > 10){
JOptionPane.showMessageDialog(this,
"请输入进程数应该在1<=n<=10!!",
"出错",
JOptionPane.ERROR_MESSAGE);
}else if(timeblock <= 0){
JOptionPane.showMessageDialog(this,
"请输入时间片大小应该t>=0!!",
"出错",
JOptionPane.ERROR_MESSAGE);
}else{
confirmDone();
threadNum = 0;
}
}catch(NumberFormatException ee){
//输入进程数以及时间片为空处理
JOptionPane.showMessageDialog(this,
"请输入进程数目或时间片大小格式有误",
"出错",
JOptionPane.ERROR_MESSAGE);
}
}
}else if(oj == reset){
//重置按钮事件
resetDone();
}else if(oj == submit){
//提交进程按钮事件
if(processNameField.getText().trim().equals("")||processStartField.getText().trim().equals("")||processLenField.getText().trim().equals("")){
//输入为空状态处理
JOptionPane.showMessageDialog(this,
"输入进程信息有误，请验证!!",
"出错",
JOptionPane.ERROR_MESSAGE);
}else{
String pname = null;
int start = 0;
int len = 0;
try{
pname = processNameField.getText();
start = Integer.parseInt(processStartField.getText());
len = Integer.parseInt(processLenField.getText());
if(start < 0 || len <= 0){
//逻辑错误处理
JOptionPane.showMessageDialog(this,
"输入进程信息有误，可能存在负数!!",
"出错",
JOptionPane.ERROR_MESSAGE);
}else{
//合法,建立一个相应的线程来模拟进程
subThread[threadNum] = new SubThread(pname, start, len);
threadNum++;
if(threadNum == number)
submitDone();
display();
processNameField.setText("");
processStartField.setText("");
processLenField.setText("");
}
}catch(NumberFormatException ee){
//输入信息非法情况处理
JOptionPane.showMessageDialog(this,
"输入进程信息格式错误!!",
"出错",
JOptionPane.ERROR_MESSAGE);
}
}
}else if(oj == runSubmit){
mainThread = new MainThread(this);
mainThread.start();
reset.setEnabled(false);
runSubmit.setEnabled(false);
}
}
/**
* submitDone()
* 相应submit按钮事件
*/
public void submitDone(){
//窗口界面显示刷新
processNameField.setText("");
processNameField.setEditable(false);
processStartField.setText("");
processStartField.setEditable(false);
processLenField.setText("");
processLenField.setEditable(false);
submit.setEnabled(false);
runSubmit.setEnabled(true);
status.setText("按重置按钮返回初始状态，按运行进程开始进程调度");
}
/**
* confirmDone()
* 相当于响应confirm按钮事件
*/
public void confirmDone(){
//窗口界面显示刷新
confirm.setEnabled(false);
processNumField.setEditable(false);
timeField.setEditable(false);
processNameField.setText("");
processNameField.setEditable(true);
processStartField.setText("");
processStartField.setEditable(true);
processLenField.setText("");
processLenField.setEditable(true);
submit.setEnabled(true);
status.setText("请输入各个进程的相关信息");
}
/**
* resetDone()
* 相当于激发reset按钮事件
*/
public void resetDone(){
//窗口界面显示刷新
confirm.setEnabled(true);
processNumField.setText("");
processNumField.setEditable(true);
timeField.setText("");
timeField.setEditable(true);
processNameField.setText("");
processNameField.setEditable(false);
processStartField.setText("");
processStartField.setEditable(false);
processLenField.setText("");
processLenField.setEditable(false);
submit.setEnabled(false);
runSubmit.setEnabled(false);
timeSys.setText("第0秒");
status.setText("请输入进程数目以及时间片大小");
//释放资源
for(int i = 0;i < number; i++)
subThread[i] = null;
number = 0;
timeblock = 0;
threadNum = 0;
mainThread = null;
//area显示线程状态信息
display();
}
/**
* display()
* 相当于刷新area中的具体内容
*/
public void display(){
//各个线程按到达时间的先后排序
SubThread tmp = null;
for(int i = 0; i < threadNum; i++){
for(int j = i+1; j < threadNum; j++){
if(subThread[i].start > subThread[j].start){
tmp = subThread[i];
subThread[i] = subThread[j];
subThread[j] = tmp;
}
}
}
//刷新area中的具体内容
area.setText("");
area.setText("进程名字\t进程状态\t到达时间\tCPU时间\t已运行时间\n");
for(int i = 0 ; i < threadNum; i++)
area.append(subThread[i].getProcess() + "\t"
+ subThread[i].getStatus() + "\t"
+ subThread[i].getStart() + "\t"
+ subThread[i].getTime() + "\t"
+ subThread[i].getRun() + "\n");
}
/**
* 程序入口方法main
* @param args
*/
public static void main(String[] args){
JFrame.setDefaultLookAndFeelDecorated(true);
JDialog.setDefaultLookAndFeelDecorated(true);
new MainUI();
}
}