| // |
| // ======================================================================== |
| // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.util; |
| |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.hamcrest.Matchers.instanceOf; |
| import static org.hamcrest.Matchers.not; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.fail; |
| |
| import java.io.IOException; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.eclipse.jetty.util.SharedBlockingCallback.Blocker; |
| import org.hamcrest.Matchers; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class SharedBlockingCallbackTest |
| { |
| final AtomicInteger notComplete = new AtomicInteger(); |
| final SharedBlockingCallback sbcb= new SharedBlockingCallback() |
| { |
| @Override |
| protected long getIdleTimeout() |
| { |
| return 150; |
| } |
| |
| @Override |
| protected void notComplete(Blocker blocker) |
| { |
| super.notComplete(blocker); |
| notComplete.incrementAndGet(); |
| } |
| |
| }; |
| |
| public SharedBlockingCallbackTest() |
| { |
| } |
| |
| |
| @Test |
| public void testDone() throws Exception |
| { |
| long start; |
| try (Blocker blocker=sbcb.acquire()) |
| { |
| blocker.succeeded(); |
| start=System.currentTimeMillis(); |
| blocker.block(); |
| } |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.lessThan(500L)); |
| Assert.assertEquals(0,notComplete.get()); |
| } |
| |
| @Test |
| public void testGetDone() throws Exception |
| { |
| long start; |
| try (final Blocker blocker=sbcb.acquire()) |
| { |
| final CountDownLatch latch = new CountDownLatch(1); |
| |
| new Thread(new Runnable() |
| { |
| @Override |
| public void run() |
| { |
| latch.countDown(); |
| try{TimeUnit.MILLISECONDS.sleep(100);}catch(Exception e){e.printStackTrace();} |
| blocker.succeeded(); |
| } |
| }).start(); |
| |
| latch.await(); |
| start=System.currentTimeMillis(); |
| blocker.block(); |
| } |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.greaterThan(10L)); |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.lessThan(1000L)); |
| Assert.assertEquals(0,notComplete.get()); |
| } |
| |
| @Test |
| public void testFailed() throws Exception |
| { |
| final Exception ex = new Exception("FAILED"); |
| long start=Long.MIN_VALUE; |
| try |
| { |
| try (final Blocker blocker=sbcb.acquire()) |
| { |
| blocker.failed(ex); |
| blocker.block(); |
| } |
| Assert.fail(); |
| } |
| catch(IOException ee) |
| { |
| start=System.currentTimeMillis(); |
| Assert.assertEquals(ex,ee.getCause()); |
| } |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.lessThan(100L)); |
| Assert.assertEquals(0,notComplete.get()); |
| } |
| |
| @Test |
| public void testGetFailed() throws Exception |
| { |
| final Exception ex = new Exception("FAILED"); |
| long start=Long.MIN_VALUE; |
| final CountDownLatch latch = new CountDownLatch(1); |
| |
| try |
| { |
| try (final Blocker blocker=sbcb.acquire()) |
| { |
| |
| new Thread(new Runnable() |
| { |
| @Override |
| public void run() |
| { |
| latch.countDown(); |
| try{TimeUnit.MILLISECONDS.sleep(100);}catch(Exception e){e.printStackTrace();} |
| blocker.failed(ex); |
| } |
| }).start(); |
| |
| latch.await(); |
| start=System.currentTimeMillis(); |
| blocker.block(); |
| } |
| Assert.fail(); |
| } |
| catch(IOException ee) |
| { |
| Assert.assertEquals(ex,ee.getCause()); |
| } |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.greaterThan(10L)); |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.lessThan(1000L)); |
| Assert.assertEquals(0,notComplete.get()); |
| } |
| |
| |
| @Test |
| public void testAcquireBlocked() throws Exception |
| { |
| final CountDownLatch latch = new CountDownLatch(1); |
| |
| new Thread(new Runnable() |
| { |
| @Override |
| public void run() |
| { |
| try |
| { |
| try (Blocker blocker=sbcb.acquire()) |
| { |
| latch.countDown(); |
| TimeUnit.MILLISECONDS.sleep(100); |
| blocker.succeeded(); |
| blocker.block(); |
| } |
| } |
| catch(Exception e) |
| { |
| e.printStackTrace(); |
| } |
| } |
| }).start(); |
| |
| |
| latch.await(); |
| long start=System.currentTimeMillis(); |
| try (Blocker blocker=sbcb.acquire()) |
| { |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.greaterThan(10L)); |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.lessThan(500L)); |
| |
| blocker.succeeded(); |
| blocker.block(); |
| }; |
| Assert.assertThat(System.currentTimeMillis()-start,Matchers.lessThan(600L)); |
| Assert.assertEquals(0,notComplete.get()); |
| } |
| |
| @Test |
| public void testBlockerClose() throws Exception |
| { |
| try (Blocker blocker=sbcb.acquire()) |
| { |
| SharedBlockingCallback.LOG.info("Blocker not complete "+blocker+" warning is expected..."); |
| } |
| |
| Assert.assertEquals(1,notComplete.get()); |
| } |
| |
| @Test |
| public void testBlockerTimeout() throws Exception |
| { |
| Blocker b0=null; |
| try |
| { |
| try (Blocker blocker=sbcb.acquire()) |
| { |
| b0=blocker; |
| Thread.sleep(400); |
| blocker.block(); |
| } |
| fail(); |
| } |
| catch(IOException e) |
| { |
| Throwable cause = e.getCause(); |
| assertThat(cause,instanceOf(TimeoutException.class)); |
| } |
| |
| Assert.assertEquals(0,notComplete.get()); |
| |
| |
| try (Blocker blocker=sbcb.acquire()) |
| { |
| assertThat(blocker,not(equalTo(b0))); |
| try |
| { |
| b0.succeeded(); |
| fail(); |
| } |
| catch(Exception e) |
| { |
| assertThat(e,instanceOf(IllegalStateException.class)); |
| assertThat(e.getCause(),instanceOf(TimeoutException.class)); |
| } |
| blocker.succeeded(); |
| } |
| } |
| } |