package demo.tabs;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.Condition;
import javax.security.sasl.AuthorizeCallback;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.internal.win32.LOGBRUSH;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.ProgressBar;
import demo.TabBase;
import util.FThread;
import org.eclipse.swt.widgets.Label;
public class ThreadTab extends TabBase {
Button btnThreadStart, btnThreadPause, btnThreadResume, btnThreadStop;
Button btnThreadPoolStart, btnThreadPoolAddjob, btnThreadPoolStop;
FThread mThread;
ExecutorService mPoolExecutor;
ArrayList<Future<String>> mPoolResult = new ArrayList<Future<String>>();
class ThreadHandleDemo extends FThread{
Display mDisplay;
ThreadHandleDemo(Display display) {
this.mDisplay = display;
}
private boolean isRunning = true;
public void run() {
log("Enter ThreadHandleDemo.run");
// Thread curThread = Thread.currentThread();
// while (!curThread.isInterrupted() && isRunning) {
// log("Thread Run " + Thread.currentThread());
// // System.out.println("Thread Run " + Thread.currentThread());
// }
while (true){ // && isRunning) {
if (getWaitType() != FThread.ThreadWaitType.twtContinue) {
break;
}
// 如果直接在子线程中更新ProgressBar(UI),会抛出 SWTException: Invalid thread access
// progBarThread.setSelection((progBarThread.getSelection() + 10) % 100);
mDisplay.asyncExec(new Runnable() {
public void run() {
int newValue = (progBarThread.getSelection() + 10);
if (newValue > 100) {
newValue = 0;
}
log("progressValue=" + newValue);
progBarThread.setSelection(newValue);
}
});
try {
Thread.sleep(500);
} catch (InterruptedException e) {
isRunning = false;
e.printStackTrace();
}
}
log("Leave ThreadHandleDemo.run");
}
}
/**
* Create the composite.
* @param parent
* @param style
*/
public ThreadTab(Composite parent, int style) {
super(parent, style);
System.out.println("ThreadTab constructor");
}
@Override
protected void checkSubclass() {
// Disable the check that prevents subclassing of SWT components
}
protected SelectionListener eventThreadHandler = new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
//System.out.println(e);
}
};
private ProgressBar progBarThread;
@Override
protected void createDemoControls() {
super.createDemoControls();
createThreadControls();
createThreadPoolControls();
createConcurrentControls();
}
protected void createThreadPoolControls() {
Group grpThreadPool = new Group(this, SWT.NONE);
grpThreadPool.setText("ThreadPool");
grpThreadPool.setLayout(new GridLayout(3, false));
btnThreadPoolStart = new Button(grpThreadPool, SWT.NONE);
btnThreadPoolStart.setText("Start");
btnThreadPoolAddjob = new Button(grpThreadPool, SWT.NONE);
btnThreadPoolAddjob.setText("AddJob");
btnThreadPoolStop = new Button(grpThreadPool, SWT.NONE);
btnThreadPoolStop.setText("Stop");
}
protected void createThreadControls() {
/* Add the listeners */
SelectionListener threadButtonEventHandler = new SelectionAdapter () {
public void widgetSelected(SelectionEvent event) {
Button btnClick = (Button) event.widget;
System.out.println(event);
if (btnClick == btnThreadStart) {
mThread = new ThreadHandleDemo(btnClick.getDisplay());
mThread.start();
}
if (btnClick == btnThreadPause) {
if (mThread != null) {
mThread.pause();
}
}
else if(btnClick == btnThreadResume){
if (mThread != null) {
mThread.resume();
}
}
else if(btnClick == btnThreadStop){
System.out.println("Click BtnStop");
if (mThread != null) {
mThread.stop();
mThread.join();
//mThread.interrupt();
}
}
}
};
Group grpThread = new Group(this, SWT.NONE);
grpThread.setText("Thread");
grpThread.setLayout(new GridLayout(5, false));
btnThreadStart = new Button(grpThread, SWT.NONE);
btnThreadStart.addSelectionListener(threadButtonEventHandler);
btnThreadStart.setText("start");
btnThreadPause = new Button(grpThread, SWT.NONE);
btnThreadPause.setText("pause");
btnThreadPause.addSelectionListener(threadButtonEventHandler);
btnThreadResume = new Button(grpThread, SWT.NONE);
btnThreadResume.setText("resume");
btnThreadResume.addSelectionListener(threadButtonEventHandler);
btnThreadStop = new Button(grpThread, SWT.NONE);
btnThreadStop.setText("stop");
progBarThread = new ProgressBar(grpThread, SWT.SMOOTH);
btnThreadStop.addSelectionListener(threadButtonEventHandler);
}
private void createConcurrentControls() {
class MyInteger{
MyInteger(int val){
mInt = new Integer(val);
}
Integer mInt;
}
Group grpConcurrent = new Group(this, SWT.NONE);
grpConcurrent.setText("Concurrent");
grpConcurrent.setLayout(new GridLayout(1, false));
Button btnCAS;
btnCAS = new Button(grpConcurrent, SWT.NONE);
final AtomicInteger safeInteger = new AtomicInteger(0);
//final Integer unsafeInteger = new Integer(0); //Integer 是 不可变类,如果直接使用的话,无法获取结果
final MyInteger unsafeInteger = new MyInteger(0);
final Thread threads[] = new Thread[10];
class IncrementThread implements Runnable{
AtomicInteger mSafeInteger;
MyInteger mUnsafeInteger;
boolean mbLock;
/**
* @param safeInteger
* @param unsafeInteger
* @param bLock 如果传入true,则在计算时会锁定 mUnsafeInteger, 使其线程安全的进行递增;
* 否则可以查看到 ++操作在多线程计算时的非原子性影响
*/
IncrementThread(AtomicInteger safeInteger, MyInteger unsafeInteger, boolean bLock){
mSafeInteger = safeInteger;
mUnsafeInteger = unsafeInteger;
mbLock = bLock;
}
@Override
public void run() {
for(int j = 0; j < 100000; j++){
mSafeInteger.incrementAndGet();
if (mbLock) {
synchronized (mUnsafeInteger) {
mUnsafeInteger.mInt++;
}
}
else{
mUnsafeInteger.mInt++;
}
}
}
};
btnCAS.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
safeInteger.set(0);
unsafeInteger.mInt = 0;
long startTime = System.currentTimeMillis();
for(int i = 0; i < 10; i++){
threads[i] = new Thread(new IncrementThread(safeInteger, unsafeInteger, false)); //TODO:改成true可以看到unsafeInteger也正确
threads[i].start();
}
for (Thread thread : threads) {
try {
thread.join();
} catch (InterruptedException e1) {
log(e1.toString());
}
}
long endTime = System.currentTimeMillis();
log("After 10* 100000, safeInteger=" + safeInteger.get() + "; unsafeIneger=" + unsafeInteger.mInt
+ ", Elaspe:" + (endTime - startTime));
}
});
btnCAS.setText("CAS");
}
@Override
public
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使用SWT+WinBuilder制作的JavaDemo程序
共12个文件
java:5个
prefs:2个
xml:1个
需积分: 9 80 下载量 46 浏览量
2016-01-17
13:17:53
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JavaDemo.zip (12个子文件)
pom.xml 713B
使用SWT+WinBuilder制作JavaDemo程序.doc 679KB
.settings
org.eclipse.m2e.core.prefs 90B
org.eclipse.jdt.core.prefs 664B
src
test
resources
java
main
resources
java
demo
TabBase.java 4KB
JavaDemoApp.java 2KB
tabs
ThreadTab.java 8KB
NetTab.java 4KB
util
FThread.java 3KB
javademo.properties 25B
.project 561B
.classpath 1KB
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