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@haokaibo
Created November 1, 2015 14:20
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MultiThreadPractice created by Intellij.
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CompilerConfiguration">
<resourceExtensions />
<wildcardResourcePatterns>
<entry name="!?*.java" />
<entry name="!?*.form" />
<entry name="!?*.class" />
<entry name="!?*.groovy" />
<entry name="!?*.scala" />
<entry name="!?*.flex" />
<entry name="!?*.kt" />
<entry name="!?*.clj" />
<entry name="!?*.aj" />
</wildcardResourcePatterns>
<annotationProcessing>
<profile default="true" name="Default" enabled="false">
<processorPath useClasspath="true" />
</profile>
</annotationProcessing>
</component>
</project>
<html>Simple <b>Java</b> application that includes a class with <code>main()</code> method</html>
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ClientPropertiesManager">
<properties class="javax.swing.AbstractButton">
<property name="hideActionText" class="java.lang.Boolean" />
</properties>
<properties class="javax.swing.JComponent">
<property name="html.disable" class="java.lang.Boolean" />
</properties>
<properties class="javax.swing.JEditorPane">
<property name="JEditorPane.w3cLengthUnits" class="java.lang.Boolean" />
<property name="JEditorPane.honorDisplayProperties" class="java.lang.Boolean" />
<property name="charset" class="java.lang.String" />
</properties>
<properties class="javax.swing.JList">
<property name="List.isFileList" class="java.lang.Boolean" />
</properties>
<properties class="javax.swing.JPasswordField">
<property name="JPasswordField.cutCopyAllowed" class="java.lang.Boolean" />
</properties>
<properties class="javax.swing.JSlider">
<property name="Slider.paintThumbArrowShape" class="java.lang.Boolean" />
<property name="JSlider.isFilled" class="java.lang.Boolean" />
</properties>
<properties class="javax.swing.JTable">
<property name="Table.isFileList" class="java.lang.Boolean" />
<property name="JTable.autoStartsEdit" class="java.lang.Boolean" />
<property name="terminateEditOnFocusLost" class="java.lang.Boolean" />
</properties>
<properties class="javax.swing.JToolBar">
<property name="JToolBar.isRollover" class="java.lang.Boolean" />
</properties>
<properties class="javax.swing.JTree">
<property name="JTree.lineStyle" class="java.lang.String" />
</properties>
<properties class="javax.swing.text.JTextComponent">
<property name="caretAspectRatio" class="java.lang.Double" />
<property name="caretWidth" class="java.lang.Integer" />
</properties>
</component>
<component name="EntryPointsManager">
<entry_points version="2.0" />
</component>
<component name="ProjectKey">
<option name="state" value="project://e2804f05-5315-4fc6-a121-c522a6c26470" />
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/MultiThreadPractice.iml" filepath="$PROJECT_DIR$/MultiThreadPractice.iml" />
</modules>
</component>
</project>
<template>
<input-field default="com.company">IJ_BASE_PACKAGE</input-field>
</template>
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="Palette2">
<group name="Swing">
<item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
</item>
<item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
</item>
<item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
</item>
<item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
<default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
</item>
<item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
<initial-values>
<property name="text" value="Button" />
</initial-values>
</item>
<item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
<initial-values>
<property name="text" value="RadioButton" />
</initial-values>
</item>
<item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
<initial-values>
<property name="text" value="CheckBox" />
</initial-values>
</item>
<item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
<initial-values>
<property name="text" value="Label" />
</initial-values>
</item>
<item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
<preferred-size width="150" height="-1" />
</default-constraints>
</item>
<item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
<preferred-size width="150" height="-1" />
</default-constraints>
</item>
<item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
<preferred-size width="150" height="-1" />
</default-constraints>
</item>
<item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
<preferred-size width="150" height="50" />
</default-constraints>
</item>
<item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
<preferred-size width="150" height="50" />
</default-constraints>
</item>
<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
<preferred-size width="150" height="50" />
</default-constraints>
</item>
<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
<default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
</item>
<item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
<preferred-size width="150" height="50" />
</default-constraints>
</item>
<item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
<preferred-size width="150" height="50" />
</default-constraints>
</item>
<item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
<preferred-size width="150" height="50" />
</default-constraints>
</item>
<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
<preferred-size width="200" height="200" />
</default-constraints>
</item>
<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
<preferred-size width="200" height="200" />
</default-constraints>
</item>
<item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
</item>
<item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
</item>
<item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
</item>
<item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
</item>
<item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
<preferred-size width="-1" height="20" />
</default-constraints>
</item>
<item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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</item>
<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
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</group>
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</project>
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="" vcs="" />
</component>
</project>
<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>
package com.panda;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ExecutionException;
import javafx.concurrent.Task;
public class BaseJob<T> {
private String jobId;
public String getJobId() {
return jobId;
}
public void setJobId(String jobId) {
this.jobId = jobId;
}
private Queue<Task<T>> tasks = new ConcurrentLinkedQueue<Task<T>>();
public void pushTask(Task<T> task) {
this.tasks.add(task);
}
public Task<T> popTask() {
return tasks.poll();
}
public void run() throws ExecutionException, InterruptedException {
for(Task<T> task : this.tasks){
task.run();
T result = task.get();
System.out.println("result = " + result);
}
}
}
package com.panda;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
public class Job {
static ExecutorService executor = Executors.newFixedThreadPool(2);
private Integer doSomething() {
return 123;
}
public static void main(String[] args) {
Job job = new Job();
// A task thread return an integer value which executes within 4
// seconds.
Future<Integer> future = executor.submit(() -> {
try {
TimeUnit.SECONDS.sleep(4);
return job.doSomething();
} catch (InterruptedException e) {
throw new IllegalStateException("task interrupted", e);
}
});
// Another thread for checking the cancel notification.
executor.submit(() -> {
checkCancelNotification();
});
// Try to get the within 10 seconds timeout constraint.
try {
future.get(10, TimeUnit.SECONDS);
} catch (InterruptedException | ExecutionException | TimeoutException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// cancel request check
private static void checkCancelNotification() {
try {
for (int i = 0; i < 3; i++) {
TimeUnit.SECONDS.sleep(1);
System.out.println(String.format("Checking the cancel notfication in %1$d second.", i + 1));
}
// simulate the scenario that there is a cancel request
cancelJob();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private static void cancelJob() {
try {
System.out.println("attempt to shutdown executor");
executor.shutdown();
boolean r = executor.awaitTermination(5, TimeUnit.SECONDS);
if (r)
System.out.println("Really shutdown.");
else
System.out.println("Really not shutdown.");
} catch (InterruptedException e) {
System.err.println("tasks interrupted");
} finally {
if (!executor.isTerminated()) {
System.err.println("cancel non-finished tasks");
}
executor.shutdownNow();
System.out.println("shutdown finished");
}
}
}
package com.panda;
import java.util.concurrent.ExecutionException;
public class JobManager {
private static JobManager instance = null;
private static Object mutex = new Object();
private JobManager() {
}
public static JobManager getInstance() {
if (instance == null) {
synchronized (mutex) {
if (instance == null) instance = new JobManager();
}
}
return instance;
}
public void runJob(BaseJob job) throws ExecutionException, InterruptedException {
job.run();
}
}
package com.panda;
import javafx.concurrent.Task;
import java.util.concurrent.ExecutionException;
public class Main {
public static void main(String[] args) {
JobManager jobManager = JobManager.getInstance();
BaseJob job = new BaseJob();
Task task1 = new Task() {
private static final String TASK_NAME = "Task1";
@Override
protected Object call() throws Exception {
return TASK_NAME;
}
@Override
public boolean cancel(boolean mayInterruptIfRunning) {
System.out.println("Call cancel from " + TASK_NAME);
return super.cancel(mayInterruptIfRunning);
}
};
Task task2 = new Task() {
private static final String TASK_NAME = "Task2";
@Override
protected Object call() throws Exception {
return TASK_NAME;
}
@Override
public boolean cancel(boolean mayInterruptIfRunning) {
System.out.println("Call cancel from " + TASK_NAME);
return super.cancel(mayInterruptIfRunning);
}
};
job.pushTask(task1);
job.pushTask(task2);
try {
jobManager.runJob(job);
} catch (ExecutionException | InterruptedException ex) {
System.out.println("ex.printStackTrace(); = " + ex.getMessage());
}
}
}
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