public class ContainersLauncher extends AbstractService implements EventHandler<ContainersLauncherEvent>
ResourceLocalizationService
is started as it depends on creation
of system directories on the local file-system.Service.STATE
Modifier and Type | Field and Description |
---|---|
ExecutorService |
containerLauncher |
Map<ContainerId,ContainerLaunch> |
running |
Constructor and Description |
---|
ContainersLauncher(Context context,
Dispatcher dispatcher,
ContainerExecutor exec,
LocalDirsHandlerService dirsHandler,
ContainerManagerImpl containerManager) |
Modifier and Type | Method and Description |
---|---|
void |
handle(ContainersLauncherEvent event) |
protected void |
serviceInit(Configuration conf)
All initialization code needed by a service.
|
protected void |
serviceStop()
Actions called during the transition to the STOPPED state.
|
close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, serviceStart, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop
public ExecutorService containerLauncher
public final Map<ContainerId,ContainerLaunch> running
public ContainersLauncher(Context context, Dispatcher dispatcher, ContainerExecutor exec, LocalDirsHandlerService dirsHandler, ContainerManagerImpl containerManager)
protected void serviceInit(Configuration conf) throws Exception
AbstractService
AbstractService.init(Configuration)
prevents re-entrancy.
The base implementation checks to see if the subclass has created
a new configuration instance, and if so, updates the base class valueserviceInit
in class AbstractService
conf
- configurationException
- on a failure -these will be caught,
possibly wrapped, and wil; trigger a service stopprotected void serviceStop() throws Exception
AbstractService
AbstractService.stop()
prevents re-entrancy.
Implementations MUST write this to be robust against failures, including
checks for null references -and for the first failure to not stop other
attempts to shut down parts of the service.serviceStop
in class AbstractService
Exception
- if needed -these will be caught and logged.public void handle(ContainersLauncherEvent event)
handle
in interface EventHandler<ContainersLauncherEvent>
Copyright © 2013 Apache Software Foundation. All rights reserved.