FIX Interruptible 在 jdk7 以上api改变了的bug

Author: qq254963746

lts-tasktracker/src/main/java/com/lts/tasktracker/runner/JobRunnerDelegate.java

@@ -16,6 +16,7 @@
 
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 /**
  * Job Runner 的代理类,
@@ -35,7 +36,7 @@ public class JobRunnerDelegate implements Runnable {
     private TaskTrackerMonitor monitor;
     private Interruptible interruptor;
     private JobRunner curJobRunner;
-    private boolean interrupted = false;
+    private AtomicBoolean interrupted = new AtomicBoolean(false);
 
     public JobRunnerDelegate(TaskTrackerAppContext appContext,
                              JobWrapper jobWrapper, RunnerCallback callback) {
@@ -48,8 +49,7 @@ public JobRunnerDelegate(TaskTrackerAppContext appContext,
                 appContext.getRemotingClient(), appContext);
         monitor = (TaskTrackerMonitor) appContext.getMonitor();
 
-        this.interruptor = new Interruptible() {
-            @Override
+        this.interruptor = new InterruptibleAdapter() {
             public void interrupt() {
                 JobRunnerDelegate.this.interrupt();
             }
@@ -61,7 +61,7 @@ public void run() {
         try {
             blockedOn(interruptor);
             if (Thread.currentThread().isInterrupted()) {
-                interruptor.interrupt();
+                ((InterruptibleAdapter)interruptor).interrupt();
             }
 
             LtsLoggerFactory.setLogger(logger);
@@ -126,15 +126,16 @@ public void run() {
     }
 
     private void interrupt() {
-        interrupted = true;
-
+        if(!interrupted.compareAndSet(false, true)){
+            return;
+        }
         if (this.curJobRunner != null && this.curJobRunner instanceof InterruptibleJobRunner) {
             ((InterruptibleJobRunner) this.curJobRunner).interrupt();
         }
     }
 
     private boolean isInterrupted() {
-        return this.interrupted;
+        return this.interrupted.get();
     }
 
     private void monitor(Action action) {
@@ -161,4 +162,13 @@ private static void blockedOn(Interruptible interruptible) {
         sun.misc.SharedSecrets.getJavaLangAccess().blockedOn(Thread.currentThread(), interruptible);
     }
 
+    public abstract class InterruptibleAdapter implements Interruptible {
+        // for > jdk7
+        public void interrupt(Thread thread) {
+            interrupt();
+        }
+
+        public abstract void interrupt();
+    }
+
 }

lts-tasktracker/src/test/java/com/lts/tasktracker/interrupter/InterruptRead.java

@@ -8,7 +8,8 @@
 
 abstract class InterruptSupport {
     private volatile boolean interrupted = false;
-    private Interruptible interruptor = new Interruptible() {
+    private Interruptible interruptor = new InterruptRead.InterruptibleAdapter() {
+
         public void interrupt() {
             interrupted = true;
             InterruptSupport.this.interrupt(); // 位置3
@@ -20,7 +21,7 @@ public final boolean execute() throws InterruptedException {
             blockedOn(interruptor); // 位置1
             System.out.println("=======1");
             if (Thread.currentThread().isInterrupted()) { // 立马被interrupted
-                interruptor.interrupt();
+                ((InterruptRead.InterruptibleAdapter)interruptor).interrupt();
                 System.out.println("=======2");
             }
             // 执行业务代码
@@ -91,8 +92,16 @@ public void run() {
         };
         t.start();
         // 先让Read执行3秒
-        Thread.sleep(3000);
+        Thread.sleep(30000);
         // 发出interrupt中断
-        t.interrupt();
+//        t.interrupt();
+    }
+
+    public static abstract class InterruptibleAdapter implements Interruptible{
+        public void interrupt(Thread thread) {
+            interrupt();
+        }
+
+        public abstract void interrupt();
     }
 }