public void execute(final OfficeTask task) throws OfficeException {
Future<?> futureTask =
taskExecutor.submit(
new Runnable() {
public void run() {
if (settings.getMaxTasksPerProcess() > 0
&& ++taskCount == settings.getMaxTasksPerProcess() + 1) {
logger.info(
String.format(
"reached limit of %d maxTasksPerProcess: restarting",
settings.getMaxTasksPerProcess()));
taskExecutor.setAvailable(false);
stopping = true;
managedOfficeProcess.restartAndWait();
// FIXME taskCount will be 0 rather than 1 at this point
}
task.execute(managedOfficeProcess.getConnection());
}
});
currentTask = futureTask;
try {
futureTask.get(settings.getTaskExecutionTimeout(), TimeUnit.MILLISECONDS);
} catch (TimeoutException timeoutException) {
managedOfficeProcess.restartDueToTaskTimeout();
throw new OfficeException("task did not complete within timeout", timeoutException);
} catch (ExecutionException executionException) {
if (executionException.getCause() instanceof OfficeException) {
throw (OfficeException) executionException.getCause();
} else {
throw new OfficeException("task failed", executionException.getCause());
}
} catch (Exception exception) {
throw new OfficeException("task failed", exception);
}
}
public void disconnected(OfficeConnectionEvent event) {
taskExecutor.setAvailable(false);
if (stopping) {
// expected
stopping = false;
} else {
logger.warning("connection lost unexpectedly; attempting restart");
if (currentTask != null) {
currentTask.cancel(true);
}
managedOfficeProcess.restartDueToLostConnection();
}
}
public PooledOfficeManager(PooledOfficeManagerSettings settings) {
this.settings = settings;
managedOfficeProcess = new ManagedOfficeProcess(settings);
managedOfficeProcess.getConnection().addConnectionEventListener(connectionEventListener);
taskExecutor = new SuspendableThreadPoolExecutor(new NamedThreadFactory("OfficeTaskThread"));
}
public boolean isRunning() {
return managedOfficeProcess.isConnected();
}
public void stop() throws OfficeException {
taskExecutor.setAvailable(false);
stopping = true;
taskExecutor.shutdownNow();
managedOfficeProcess.stopAndWait();
}
public void start() throws OfficeException {
managedOfficeProcess.startAndWait();
}