public void testSelfExcludingJobs() throws Exception {
BuildBlockerProperty theProperty = new BuildBlockerProperty();
theProperty.setBlockingJobs("SelfExcluding_.*");
FreeStyleProject theJob1 = createFreeStyleProject("SelfExcluding_Job1");
theJob1.addProperty(theProperty);
assertTrue(theJob1.getBuilds().isEmpty());
FreeStyleProject theJob2 = createFreeStyleProject("SelfExcluding_Job2");
theJob2.addProperty(theProperty);
assertTrue(theJob1.getBuilds().isEmpty());
// allow executing two simultanious jobs
int theOldNumExecutors = Hudson.getInstance().getNumExecutors();
Hudson.getInstance().setNumExecutors(2);
Future<FreeStyleBuild> theFuture1 = theJob1.scheduleBuild2(0);
Future<FreeStyleBuild> theFuture2 = theJob2.scheduleBuild2(0);
long theStartTime = System.currentTimeMillis();
long theEndTime = theStartTime;
while ((!theFuture1.isDone() || !theFuture2.isDone()) && theEndTime < theStartTime + 5000) {
theEndTime = System.currentTimeMillis();
}
// if more then five seconds have passed, we assume its a deadlock.
assertTrue(theEndTime < theStartTime + 5000);
// restore changed settings
Hudson.getInstance().setNumExecutors(theOldNumExecutors);
theJob2.delete();
theJob1.delete();
}
public static void main(String[] args) throws Exception {
if (args.length != 1) {
System.err.println("Invalid number of arguments specified. Specify an input file.");
return;
}
File inputFile = new File(args[0]);
if (!inputFile.isDirectory()) {
System.err.println(
"Specified input is not a directory. Please specify a directory as an input.");
return;
}
// Construct an object of TestFileReaderCallable
TestFolderChildrenReaderCallable testObj = new TestFolderChildrenReaderCallable(inputFile);
List<Future<StringBuffer>> inputList = new ArrayList<>();
testObj.startProcess(testObj.getInputFile(), inputList);
do {
for (Future<StringBuffer> futureTask : inputList) {
if (futureTask.isDone() && !futureTask.isCancelled()) {
System.out.println(futureTask.get());
} else if (futureTask.isDone() && futureTask.isCancelled()) {
System.out.println("This task is cancelled....");
} else if (!futureTask.isDone()) {
System.out.println(futureTask + " is still in progress...");
}
}
} while (testObj.getExecutorService().getCompletedTaskCount() < inputList.size());
testObj.shutdown();
}
@Test
public void getLargeBlock() throws Exception {
connect();
Block b1 = createFakeBlock(blockStore).block;
blockChain.add(b1);
Block b2 = makeSolvedTestBlock(b1);
Transaction t = new Transaction(unitTestParams);
t.addInput(b1.getTransactions().get(0).getOutput(0));
t.addOutput(
new TransactionOutput(
unitTestParams, t, BigInteger.ZERO, new byte[Block.MAX_BLOCK_SIZE - 1000]));
b2.addTransaction(t);
// Request the block.
Future<Block> resultFuture = peer.getBlock(b2.getHash());
assertFalse(resultFuture.isDone());
// Peer asks for it.
GetDataMessage message = (GetDataMessage) outbound(writeTarget);
assertEquals(message.getItems().get(0).hash, b2.getHash());
assertFalse(resultFuture.isDone());
// Peer receives it.
inbound(writeTarget, b2);
Block b = resultFuture.get();
assertEquals(b, b2);
}
@Override
public void handle(
String target, Request request, HttpServletRequest httpRequest, HttpServletResponse response)
throws IOException, ServletException {
response.setContentType(Const.JSON);
Service service = getService(request);
Module module = getModule(request, service);
GetVersionData data = new GetVersionData();
Future artifactFuture =
executorService.submit(
new ReadModuleArtifactVersionsRunnable(service, module, data, moduleArtifactHelper));
Future configFuture =
executorService.submit(
new ReadModuleConfigVersionsRunnable(module, data, moduleConfigHelper));
while (!artifactFuture.isDone() || !configFuture.isDone()) {
try {
Thread.sleep(100);
} catch (InterruptedException ex) {
}
}
toJson(response, data);
response.setStatus(200);
request.setHandled(true);
}
@Test
public void testLeaseCancel() throws Exception {
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
final HttpConnection conn1 = Mockito.mock(HttpConnection.class);
Mockito.when(conn1.isOpen()).thenReturn(true);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn1);
final LocalConnPool pool = new LocalConnPool(connFactory, 1, 1);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final GetPoolEntryThread t1 = new GetPoolEntryThread(future1);
t1.start();
t1.join(GRACE_PERIOD);
Assert.assertTrue(future1.isDone());
final LocalPoolEntry entry1 = t1.getEntry();
Assert.assertNotNull(entry1);
final Future<LocalPoolEntry> future2 = pool.lease("somehost", null);
final GetPoolEntryThread t2 = new GetPoolEntryThread(future2);
t2.start();
Thread.sleep(5);
Assert.assertFalse(future2.isDone());
Assert.assertFalse(future2.isCancelled());
future2.cancel(true);
t2.join(GRACE_PERIOD);
Assert.assertTrue(future2.isDone());
Assert.assertTrue(future2.isCancelled());
future2.cancel(true);
future2.cancel(true);
}
public static void main(String[] args) {
Callable<Integer> task =
() -> {
try {
TimeUnit.SECONDS.sleep(1);
return 123;
} catch (InterruptedException e) {
throw new IllegalStateException("task interrupted", e);
}
};
ExecutorService executor = Executors.newFixedThreadPool(1);
Future<Integer> future = executor.submit(task);
System.out.println("future done? " + future.isDone());
Integer result = -1;
try {
result = future.get();
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("future done? " + future.isDone());
System.out.println("result: " + result);
stop(executor);
}
/**
* Do Forever 1. Wait for a user input 2. Parse the user input. Separate the command and its
* arguments 3. Create a new thread to execute the command 4. Execute the command and its
* arguments on the newly created thread. Exit with the status code of the executed command 5. In
* the shell, wait for the thread to complete execution 6. Report the exit status of the command
* to the user
*/
public static void main(String[] args) {
Shell shell = new Shell();
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
ExecutorService executorSvc = Executors.newSingleThreadExecutor();
Future<?> taskThread = null;
try {
while (true) {
if (taskThread == null || taskThread.isDone())
System.out.print(System.getProperty("user.dir") + " >> ");
String input = br.readLine();
if (input == null) continue;
input = input.trim();
if (input.isEmpty()) continue;
if (input.equals("Ctrl-Z")) {
if (taskThread != null && !taskThread.isDone()) {
taskThread.cancel(true);
taskThread = null;
System.out.println("Task Interrupted");
}
} else {
if (taskThread == null || taskThread.isDone()) {
ITool tool = shell.parse(input);
boolean toExecuteTool = true;
if (tool != null) {
// get standard input if needed
if (stdinRequired) {
stdIn = "";
while ((input = br.readLine()) != null) {
// do not execute task
if (input.equals("Ctrl-Z")) {
toExecuteTool = false;
System.out.println("Task Interrupted");
break;
}
stdIn += input + System.lineSeparator();
}
}
if (toExecuteTool) {
Runnable runnable = shell.execute(tool);
taskThread = executorSvc.submit(runnable);
}
} else {
System.err.println("Invalid Command : " + input);
}
}
}
}
} catch (IOException e) {
System.err.println("Error: invalid input - " + e.getMessage());
}
}
@Override
public void run() {
while (!myDisposed) {
boolean isEmpty;
synchronized (filesToResolve) {
isEmpty = filesToResolve.isEmpty();
}
if (enableVetoes.get() > 0
|| isEmpty
|| !resolveProcess.isDone()
|| HeavyProcessLatch.INSTANCE.isRunning()
|| PsiDocumentManager.getInstance(myProject).hasUncommitedDocuments()) {
try {
waitForQueue();
} catch (InterruptedException e) {
break;
}
continue;
}
final Set<VirtualFile> files = pollFilesToResolve();
if (files.isEmpty()) continue;
upToDate = false;
myApplication.invokeLater(
() -> {
if (!resolveProcess.isDone()) return;
log("Started to resolve " + files.size() + " files");
Task.Backgroundable backgroundable =
new Task.Backgroundable(myProject, "Resolving files...", false) {
@Override
public void run(@NotNull final ProgressIndicator indicator) {
if (!myApplication.isDisposed()) {
processBatch(indicator, files);
}
}
};
ProgressIndicator indicator;
if (files.size() > 1) {
// show progress
indicator = new BackgroundableProcessIndicator(backgroundable);
} else {
indicator = new MyProgress();
}
resolveProcess =
((ProgressManagerImpl) ProgressManager.getInstance())
.runProcessWithProgressAsynchronously(backgroundable, indicator, null);
},
myProject.getDisposed());
flushLog();
}
}
/** Test the method isDone() */
@Test
public void testIsDoneMethod() throws Exception {
Callable<String> task = new BasicTestTask();
IExecutorService executor = createSingleNodeExecutorService("isDoneMethod");
Future future = executor.submit(task);
if (future.isDone()) {
assertTrue(future.isDone());
}
assertEquals(future.get(), BasicTestTask.RESULT);
assertTrue(future.isDone());
}
private static void futureDemo(AsynchronousFileChannel afc, ByteBuffer byteBuffer)
throws InterruptedException, ExecutionException, IOException {
Future<Integer> result = afc.read(byteBuffer, 0);
while (!result.isDone()) {
System.out.println("Waiting file channel finished....");
Thread.sleep(1);
}
System.out.println("Finished? = " + result.isDone());
System.out.println("byteBuffer = " + result.get());
System.out.println(byteBuffer);
afc.close();
}
@Override
public void run(String... arg0) throws Exception {
long start = System.currentTimeMillis();
Future<User> page1 = gitservice.findUser("gcstar");
Future<User> page2 = gitservice.findUser("tj");
Future<User> page3 = gitservice.findUser("alsotang");
while (!(page1.isDone() && page2.isDone() && page3.isDone())) {
Thread.sleep(10); // 10-millisecond pause between each check
}
System.out.println("Elapsed time: " + (System.currentTimeMillis() - start));
System.out.println(page1.get());
System.out.println(page2.get());
System.out.println(page3.get());
}
/** Test for the issue 129. Repeatedly runs tasks and check for isDone() status after get(). */
@Test
public void testIsDoneMethod2() throws Exception {
ExecutorService executor = createSingleNodeExecutorService("isDoneMethod2");
for (int i = 0; i < COUNT; i++) {
Callable<String> task1 = new BasicTestTask();
Callable<String> task2 = new BasicTestTask();
Future future1 = executor.submit(task1);
Future future2 = executor.submit(task2);
assertEquals(future2.get(), BasicTestTask.RESULT);
assertTrue(future2.isDone());
assertEquals(future1.get(), BasicTestTask.RESULT);
assertTrue(future1.isDone());
}
}
public void testCanPersistOnlySomeDeltas() throws Exception {
appendDeltas(d1, d2, d3);
Future<Void> future = target.persist(d2.getResultingVersion());
awaitPersistence();
assertTrue(future.isDone());
assertEquals(null, future.get());
assertEquals(d2.getResultingVersion(), target.getLastPersistedVersion());
future = target.persist(d3.getResultingVersion());
awaitPersistence();
assertTrue(future.isDone());
assertEquals(null, future.get());
assertEquals(d3.getResultingVersion(), target.getLastPersistedVersion());
}
/**
* One test for all for faster execution.
*
* @throws Exception
*/
public void testCanRun() throws Exception {
// init slave
LabelAtom slaveLabel = new LabelAtom("slave");
LabelAtom masterLabel = new LabelAtom("master");
DumbSlave slave = this.createSlave(slaveLabel);
SlaveComputer c = slave.getComputer();
c.connect(false).get(); // wait until it's connected
if (c.isOffline()) {
fail("Slave failed to go online: " + c.getLog());
}
BuildBlockerQueueTaskDispatcher dispatcher = new BuildBlockerQueueTaskDispatcher();
String blockingJobName = "blockingJob";
Shell shell = new Shell("sleep 1");
Future<FreeStyleBuild> future1 = createBlockingProject("xxx", shell, masterLabel);
Future<FreeStyleBuild> future2 = createBlockingProject(blockingJobName, shell, masterLabel);
Future<FreeStyleBuild> future3 = createBlockingProject("yyy", shell, slaveLabel);
// add project to slave
FreeStyleProject project = this.createFreeStyleProject();
project.setAssignedLabel(slaveLabel);
Queue.BuildableItem item =
new Queue.BuildableItem(
new Queue.WaitingItem(Calendar.getInstance(), project, new ArrayList<Action>()));
CauseOfBlockage causeOfBlockage = dispatcher.canRun(item);
assertNull(causeOfBlockage);
BuildBlockerProperty property = new BuildBlockerProperty();
property.setBlockingJobs(".*ocki.*");
project.addProperty(property);
causeOfBlockage = dispatcher.canRun(item);
assertNotNull(causeOfBlockage);
assertEquals(
"Blocking job " + blockingJobName + " is running.", causeOfBlockage.getShortDescription());
while (!(future1.isDone() && future2.isDone() && future3.isDone())) {
// wait until jobs are done.
}
}
/**
* Opens the connection to the worker. And start the heartbeat thread.
*
* @throws IOException if a non-Tachyon exception occurs
*/
private synchronized void connectOperation() throws IOException {
if (!mConnected) {
LOG.info("Connecting to {} worker @ {}", (mIsLocal ? "local" : "remote"), mAddress);
TProtocol binaryProtocol =
new TBinaryProtocol(AuthenticationUtils.getClientTransport(mTachyonConf, mAddress));
mProtocol = new TMultiplexedProtocol(binaryProtocol, getServiceName());
mClient = new BlockWorkerClientService.Client(mProtocol);
try {
mProtocol.getTransport().open();
} catch (TTransportException e) {
LOG.error(e.getMessage(), e);
return;
}
mConnected = true;
// only start the heartbeat thread if the connection is successful and if there is not
// another heartbeat thread running
if (mHeartbeat == null || mHeartbeat.isCancelled() || mHeartbeat.isDone()) {
final int interval = mTachyonConf.getInt(Constants.USER_HEARTBEAT_INTERVAL_MS);
mHeartbeat =
mExecutorService.submit(
new HeartbeatThread(HeartbeatContext.WORKER_CLIENT, mHeartbeatExecutor, interval));
}
}
}
@Test
public void testSendWithNoEndpoint() throws Exception {
Meta meta = m_metaHolder.getMeta();
reset(m_metaHolder);
Topic topic = meta.findTopic(TEST_TOPIC);
for (Partition p : topic.getPartitions()) {
p.setEndpoint(null);
}
when(m_metaHolder.getMeta()).thenReturn(meta);
brokerActionsWhenReceivedSendMessageCmd( //
MessageSendAnswer.NoOp);
List<Pair<String, String>> appProperties = Arrays.asList(new Pair<String, String>("a", "A"));
Future<SendResult> future =
sendAsync(TEST_TOPIC, "pKey", "body", "rKey", appProperties, false, null);
try {
future.get(
lookup(ProducerConfig.class).getBrokerSenderSendTimeoutMillis() + 200L,
TimeUnit.MILLISECONDS);
fail();
} catch (TimeoutException e) {
// do nothing
} catch (Exception e) {
fail();
}
assertFalse(future.isDone());
List<Command> brokerReceivedCmds = getBrokerReceivedCmds();
assertEquals(0, brokerReceivedCmds.size());
}
/* This is different from threadly's FutureUtils because
* we want logging progress as futures complete...Since
* these futures may take a VERY long time to complete.
* The alternative would be to add runnables to these
* so that we log out at 10% intervals, but that would assume
* that the futures complete mostly in order.
*/
public static void blockTillAllDone(List<Future<?>> futures) {
float doneCount = 0;
int lastReportedDonePercent = 0;
Iterator<Future<?>> it = futures.iterator();
while (it.hasNext()) {
try {
Future<?> f = it.next();
if (!f.isDone() || !it.hasNext()) {
// we take * 10 and / 10 so we can get one additional decimal of accuracy
int donePercent = (int) Math.round((doneCount / futures.size()) * 100 * 10);
if (donePercent != lastReportedDonePercent) {
lastReportedDonePercent = donePercent;
System.out.println("Progress: " + (donePercent / 10.) + "%");
}
f.get();
}
doneCount++;
} catch (InterruptedException e) {
ExceptionUtils.handleException(e);
return; // let thread exit
} catch (ExecutionException e) {
ExceptionUtils.handleException(e);
}
}
}
/**
* Tests that a SLSB method which is marked as asynchronous and returns a {@link
* java.util.concurrent.Future} is invoked asynchronously and the client isn't blocked for the
* lifetime of the method
*
* @throws Exception
*/
@Test
public void testAsyncFutureMethodOnSLSB() throws Exception {
final StatelessEJBLocator<EchoRemote> locator =
new StatelessEJBLocator<EchoRemote>(
EchoRemote.class, APP_NAME, MODULE_NAME, EchoBean.class.getSimpleName(), "");
final EchoRemote echoRemote = EJBClient.createProxy(locator);
Assert.assertNotNull("Received a null proxy", echoRemote);
final String message = "You are supposed to be an asynchronous method";
final long DELAY = 5000;
final long start = System.currentTimeMillis();
// invoke the asynchronous method
final Future<String> futureEcho = echoRemote.asyncEcho(message, DELAY);
final long end = System.currentTimeMillis();
logger.info(
"Asynchronous invocation returned a Future: "
+ futureEcho
+ " in "
+ (end - start)
+ " milli seconds");
// test that the invocation did not act like a synchronous invocation and instead returned
// "immediately"
Assert.assertFalse(
"Asynchronous invocation behaved like a synchronous invocation", (end - start) >= DELAY);
Assert.assertNotNull("Future is null", futureEcho);
// Check if the result is marked as complete (it shouldn't be this soon)
Assert.assertFalse("Future result is unexpectedly completed", futureEcho.isDone());
// wait for the result
final String echo = futureEcho.get();
Assert.assertEquals("Unexpected echo message", message, echo);
}
/**
* Cancel Feed Submissions request sample cancels feed submissions - by default all of the
* submissions of the last 30 days that have not started processing
*
* @param service instance of MarketplaceWebService service
* @param requests list of requests to process
*/
public static void invokeCancelFeedSubmissions(
MarketplaceWebService service, List<CancelFeedSubmissionsRequest> requests) {
List<Future<CancelFeedSubmissionsResponse>> responses =
new ArrayList<Future<CancelFeedSubmissionsResponse>>();
for (CancelFeedSubmissionsRequest request : requests) {
responses.add(service.cancelFeedSubmissionsAsync(request));
}
for (Future<CancelFeedSubmissionsResponse> future : responses) {
while (!future.isDone()) {
Thread.yield();
}
try {
CancelFeedSubmissionsResponse response = future.get();
// Original request corresponding to this response, if needed:
CancelFeedSubmissionsRequest originalRequest = requests.get(responses.indexOf(future));
System.out.println("Response request id: " + response.getResponseMetadata().getRequestId());
System.out.println(response.getResponseHeaderMetadata());
System.out.println();
} catch (Exception e) {
if (e.getCause() instanceof MarketplaceWebServiceException) {
MarketplaceWebServiceException exception =
MarketplaceWebServiceException.class.cast(e.getCause());
System.out.println("Caught Exception: " + exception.getMessage());
System.out.println("Response Status Code: " + exception.getStatusCode());
System.out.println("Error Code: " + exception.getErrorCode());
System.out.println("Error Type: " + exception.getErrorType());
System.out.println("Request ID: " + exception.getRequestId());
System.out.print("XML: " + exception.getXML());
System.out.println("ResponseHeaderMetadata: " + exception.getResponseHeaderMetadata());
} else {
e.printStackTrace();
}
}
}
}
@Test
public void testSendNonPriorityAsync() throws Exception {
brokerActionsWhenReceivedSendMessageCmd( //
MessageSendAnswer.Accept, //
MessageSendAnswer.ResponseSucessResult //
);
List<Pair<String, String>> appProperties = Arrays.asList(new Pair<String, String>("b", "B"));
Future<SendResult> future =
sendAsync(TEST_TOPIC, "pKey", "body", "rKey", appProperties, true, null);
future.get();
assertTrue(future.isDone());
List<Command> brokerReceivedCmds = getBrokerReceivedCmds();
assertEquals(1, brokerReceivedCmds.size());
SendMessageCommand sendCmd = (SendMessageCommand) brokerReceivedCmds.get(0);
ConcurrentMap<Integer, List<ProducerMessage<?>>> msgs = sendCmd.getMsgs();
// priority
assertEquals(1, msgs.get(0).size());
// non-priority
assertNull(msgs.get(1));
assertMsg(msgs.get(0).get(0), TEST_TOPIC, "pKey", "body", "rKey", appProperties);
}
@Override
protected void doClose() throws ElasticsearchException {
int size = tasks.size();
if (size > 0) {
for (Future<?> f : tasks) {
if (!f.isDone()) {
logger.info("aborting knapsack task {}", f);
boolean b = f.cancel(true);
if (!b) {
logger.error("knapsack task {} could not be cancelled", f);
}
}
}
tasks.clear();
}
logger.info("knapsack shutdown...");
executor.shutdown();
try {
this.executor.awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
throw new ElasticsearchException(e.getMessage());
}
if (!executor.isShutdown()) {
logger.info("knapsack shutdown now");
executor.shutdownNow();
try {
this.executor.awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
throw new ElasticsearchException(e.getMessage());
}
}
logger.info("knapsack shutdown complete");
}
private void closeImmediately0() {
// We need to close the channel immediately to remove it from the
// server session's channel table and *not* send a packet to the
// client. A notification was already sent by our caller, or will
// be sent after we return.
//
super.close(true);
// We also need to close the socket.
Socket.close(handle);
try {
if ((forwarder != null) && (!forwarder.isDone())) {
forwarder.cancel(true);
}
} finally {
forwarder = null;
}
try {
if ((forwardService != null) && shutdownForwarder) {
Collection<?> runners = forwardService.shutdownNow();
if (log.isDebugEnabled()) {
log.debug("Shut down runners count=" + GenericUtils.size(runners));
}
}
} finally {
forwardService = null;
shutdownForwarder = false;
}
}
/** Scenario: loads on one label shouldn't translate to load on another label. */
public void testLabels() throws Exception {
BulkChange bc = new BulkChange(hudson);
try {
DummyCloudImpl cloud = initHudson(0);
Label blue = hudson.getLabel("blue");
Label red = hudson.getLabel("red");
cloud.label = red;
// red jobs
List<FreeStyleProject> redJobs = create5SlowJobs(new Latch(5));
for (FreeStyleProject p : redJobs) p.setAssignedLabel(red);
// blue jobs
List<FreeStyleProject> blueJobs = create5SlowJobs(new Latch(5));
for (FreeStyleProject p : blueJobs) p.setAssignedLabel(blue);
// build all
List<Future<FreeStyleBuild>> blueBuilds = buildAll(blueJobs);
verifySuccessfulCompletion(buildAll(redJobs));
// cloud should only give us 5 nodes for 5 red jobs
assertEquals(5, cloud.numProvisioned);
// and all blue jobs should be still stuck in the queue
for (Future<FreeStyleBuild> bb : blueBuilds) assertFalse(bb.isDone());
} finally {
bc.abort();
}
}
public long get() {
if (snychState == SynchState.NTP) return startNTPTime + (System.currentTimeMillis() - ntpTimer);
// We are using tick based server time here
// Check if synch is ongoing
if (ntpFuture.isDone()) {
logger.debug("ntpSynchTask result available.");
startNTPTime = getNTPFuture();
if (startNTPTime != 0L) {
// NTP time now available
snychState = SynchState.NTP;
ntpTimer = System.currentTimeMillis();
logger.debug("Switched to SynchState NTP");
return startNTPTime;
} else {
logger.debug("Synch taks failed, reset synch timer");
serverSynchTimer = System.currentTimeMillis();
}
}
// No synch ongoing, check if synch is triggered
if (isServerTimeSynchTriggered()) {
logger.debug("Server time synching was triggered.");
startNTPSynch();
serverSynchTimer = System.currentTimeMillis();
}
long latestTickTime = getLatestTickTime();
if (latestTickTime == 0L) {
logger.warn(
"latestTickTime is invalid, server time currently not available, fallback to system time!");
return System.currentTimeMillis();
}
return latestTickTime;
}
@Override
public void close() {
boolean shouldSendDelete;
Future<?> future;
synchronized (this) {
shouldSendDelete = !closed;
closed = true;
future = this.future;
this.future = null;
lastUpdate = DateTime.now();
}
if (future != null && !future.isDone()) {
future.cancel(true);
}
// abort the output buffer on the remote node; response of delete is ignored
if (shouldSendDelete) {
sendDelete();
}
}
/** 通过将来式一度读取文件 */
@Test
public void testAsynchronousFileChannel() {
Path path = Paths.get(ParentPath + "\\win7.iso");
try {
AsynchronousFileChannel channel = AsynchronousFileChannel.open(path, StandardOpenOption.READ);
ByteBuffer buffer = ByteBuffer.allocate(1000000000);
Future<Integer> read = channel.read(buffer, 0);
while (!read.isDone()) {
System.out.println("read");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
try {
Integer resoult = read.get();
System.out.println(resoult);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// check whether the semaphore is valid
private boolean waitTaskDone() {
log.error("waitTaskDone():: entrance");
final long timeout = 1 * 1000;
long startTimestamp = System.currentTimeMillis();
while (System.currentTimeMillis() - startTimestamp < timeout) {
for (int index = 0; index < mTaskList.size(); ++index) {
ITaskBase currentTask = mTaskList.get(index);
// check whether the mTaskList is cleared
if (currentTask == null) {
log.info("waitTaskDone():: currentTask == null, return");
return true;
}
Future<?> currentFuture = currentTask.getFuture();
if (currentFuture == null) {
log.info("waitTaskDone():: the task is added just now, return");
return true;
}
if (currentFuture != null && currentFuture.isDone()) {
log.info("waitTaskDone():: one task is done, return");
return true;
}
}
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
log.info("waitTaskDone():: tiemout, fake semaphore");
return false;
}
@Override
public void addListener(Runnable listener, Executor exec) {
executionList.add(listener, exec);
// When a listener is first added, we run a task that will wait for the delegate to finish,
// and when it is done will run the listeners.
if (hasListeners.compareAndSet(false, true)) {
if (delegate.isDone()) {
// If the delegate is already done, run the execution list immediately on the current
// thread.
executionList.execute();
return;
}
// TODO(lukes): handle RejectedExecutionException
adapterExecutor.execute(
new Runnable() {
@Override
public void run() {
try {
/*
* Threads from our private pool are never interrupted. Threads from a
* user-supplied executor might be, but... what can we do? This is another reason
* to return a proper ListenableFuture instead of using listenInPoolThread.
*/
getUninterruptibly(delegate);
} catch (Throwable e) {
// ExecutionException / CancellationException / RuntimeException / Error
// The task is presumably done, run the listeners.
}
executionList.execute();
}
});
}
}
public double getExecutionTimeMillis() {
final long t = time.get();
if (!future.isDone()) {
return System.nanoTime() - t;
}
return t / 1000000.0;
}
public void doFuture() {
CallableTask call = new CallableTask();
try {
/**
* Future<t> is result of asynchronous computation. It may possible that CallableTask has not
* started yet but 'ExecutorService' gives the result via Future Object.
*/
Future<String> future = executorPool.submit(call);
/** We can check if CallableTask has been completed. */
System.out.println("Status of Callable Task [Is Completed ? " + future.isDone() + "]");
/**
* We can get the result of callable Task. Note : future.get() is a blocking call, It will
* wait until the associated process finishes.
*/
System.out.println("Result of callable task [" + future.get() + "]");
/** We can cancel the task. */
System.out.println("Trying to cancel the task [Is Cancelled ? " + future.cancel(false) + "]");
/**
* We can see if the task was canceled. Returns true if this task was canceled before it
* completed normally
*/
System.out.println("Was task canceled before normal complition ? -" + future.isCancelled());
} catch (Exception e) {
e.printStackTrace();
} finally {
executorPool.shutdownNow();
}
}
