public static void addImage(BufferedImage img, UtmPose pose) {
if (imagesDir != null) {
try {
File outputfile =
new File(
imagesDir.getAbsolutePath() + File.separator + "BoatImg" + (new Date()) + ".png");
System.out.println("Writing to " + outputfile + " " + pose);
ImageIO.write(img, "png", outputfile);
} catch (IOException e) {
System.out.println("Failed to write image to file: " + e);
}
} else {
System.out.println("Do not know where to save images");
}
if (queue.size() > 100) {
int v = rateS.getValue();
int nv = Math.min(100, Math.max(v, (rateS.getValue() / 10)));
if (v != nv) {
rateS.setValue(nv);
}
}
if (queue.size() < 1000) {
queue.offer(new BufferedImageWithPose(img, pose));
queueP.setValue(Math.min(100, queue.size()));
} else {
System.out.println("No longer queuing images, queue is full");
}
}
private DataNodeIdentifier pickHeaviestLoad(DataNodeIdentifier otherNode) {
DataNodeIdentifier replacementNode = null;
PriorityBlockingQueue<DataNodeStatusPair> invertedStatusQueue =
new PriorityBlockingQueue<DataNodeStatusPair>(
datanodeStatuses.size(),
new Comparator<DataNodeStatusPair>() {
public int compare(DataNodeStatusPair a, DataNodeStatusPair b) {
return -1 * a.compareTo(b);
}
});
for (DataNodeStatusPair each : datanodeStatuses) {
invertedStatusQueue.put(each);
}
while (replacementNode == null) {
DataNodeStatusPair next = invertedStatusQueue.poll();
DataNodeIdentifier nextId = next.getIdentifier();
if (!nextId.equals(otherNode)) {
replacementNode = nextId;
}
}
return replacementNode;
}
public static void submitTask(String fileUrl, ImageLoadTask task) {
Log.e(TAG, "execute a ImageLoadTask ! sWorkQueue.size() = " + mWorkQueue.size());
if (mHashMap.get(fileUrl) == null) {
mHashMap.put(fileUrl, task);
mExecutor.execute(task);
} else {
Log.e(TAG, "there is already a task running !");
}
}
public static BufferedImage getImage() {
try {
BufferedImage b = queue.take().img;
queueP.setValue(Math.min(100, queue.size()));
return b;
} catch (InterruptedException e) {
}
return null;
}
@Override
public synchronized String toString() {
return Objects.toStringHelper(this)
.add("runnerThreads", runnerThreads)
.add("allSplits", allSplits.size())
.add("pendingSplits", pendingSplits.size())
.add("runningSplits", runningSplits.size())
.add("blockedSplits", blockedSplits.size())
.toString();
}
public static void main(String[] args) {
PriorityBlockingQueue<Event> queue = new PriorityBlockingQueue<Event>();
Thread[] taskThreads = new Thread[5];
// 初始这 5 个任务线程。
for (int i = 0; i < taskThreads.length; i++) {
Task task = new Task(i, queue);
taskThreads[i] = new Thread(task);
}
// 启动这 5 个任务线程。
for (Thread t : taskThreads) {
t.start();
}
// 使用 join() 方法，让 main 线程等待 5 个任务线程结束。
for (Thread t : taskThreads) {
try {
t.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.printf("Main: Queue Size: %d\n", queue.size());
for (int i = 0; i < taskThreads.length * 1000; i++) {
Event event = queue.poll();
System.out.printf("Thread %s: Priority %d\n", event.getThread(), event.getPriority());
}
System.out.printf("Main: Queue Size: %d\n", queue.size());
System.out.printf("Main: End of the program\n");
}
/**
* Submit a MeasurementTask to the scheduler. Caller of this method can broadcast an intent with
* MEASUREMENT_ACTION to start the measurement immediately.
*/
public boolean submitTask(MeasurementTask task) {
try {
// Immediately handles measurements created by user
if (task.getDescription().priority == MeasurementTask.USER_PRIORITY) {
return this.taskQueue.add(task);
}
if (taskQueue.size() >= Config.MAX_TASK_QUEUE_SIZE
|| pendingTasks.size() >= Config.MAX_TASK_QUEUE_SIZE) {
return false;
}
// Automatically notifies the scheduler waiting on taskQueue.take()
return this.taskQueue.add(task);
} catch (NullPointerException e) {
Logger.e("The task to be added is null");
return false;
} catch (ClassCastException e) {
Logger.e("cannot compare this task against existing ones");
return false;
}
}
@Managed
public int getPendingSplits() {
return pendingSplits.size();
}
@Override
public int getDbQueueLength() {
return dbManagerQueue.size();
}