org.alfresco.bm.server

Class EventController

java.lang.Object

java.lang.Thread

org.alfresco.bm.server.EventController

All Implemented Interfaces:

Runnable, EventListener, ConfigConstants, org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware, org.springframework.context.ApplicationListener<org.springframework.context.event.ApplicationContextEvent>

public class EventController
extends Thread
implements org.springframework.context.ApplicationListener<org.springframework.context.event.ApplicationContextEvent>, org.springframework.context.ApplicationContextAware, ConfigConstants

A master controlling thread that ensures that:

• reads events from the queue
• checks out threads to process events
• monitors event processors
• records event executions
• handles exceptions e.g. events that take too long to process

Application events are monitored to start, stop and otherwise control the threads.

Since:

1.0

Author:

Derek Hulley

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Nested classes/interfaces inherited from interface org.alfresco.bm.server.ConfigConstants

ConfigConstants.RunState

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Fields inherited from interface org.alfresco.bm.server.ConfigConstants

DEFAULT_RUNSTATE, DEFAULT_SERVER_ID, EXT_JAR, EXT_PROPERTIES, EXT_XML, PATH_CLASSES, PATH_CLUSTER_PROPERTIES, PATH_CLUSTERS, PATH_CONFIG, PATH_JARS, PATH_LOADED, PATH_RUN_PROPERTIES, PATH_RUNS, PATH_SERVER, PATH_SERVERS, PATH_TEST_CONTEXT, PATH_TEST_PROPERTIES, PATH_TESTS, PROP_CLUSTER, PROP_CONTROL_RUN_STATE, PROP_EVENT_PROCESSOR_THREADS, PROP_HTTP_CONNECTION_MAX, PROP_HTTP_CONNECTION_TIMEOUT_MS, PROP_HTTP_SOCKET_TIMEOUT_MS, PROP_HTTP_SOCKET_TTL_MS, PROP_MONGO_AUTOCONNECTRETRY, PROP_MONGO_CONNECTIONSPERHOST, PROP_MONGO_SOCKETTIMEOUT, PROP_MONGO_URI, PROP_MONGO_WRITENUMBER, PROP_SERVER_ID, PROP_TEST_NAME, PROP_TEST_RUN_FQN, PROP_TEST_RUN_NAME, SEPARATOR

Constructor Summary

Constructors

Constructor and Description
EventController(String serverId, String testRunFqn, EventService eventService, EventProcessorRegistry eventProcessors, ExecutorService executor, ResultService resultService) Construct the controller

Method Summary

Methods

Modifier and Type	Method and Description
void	onApplicationEvent(org.springframework.context.event.ApplicationContextEvent event) The application context is started externally but may be stopped internally
void	run()
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext) Record the application context for shutdown once processing has finished
void	setQueuePollTimeMs(long queuePollTimeMs) The time between polls of the event provider.
void	setQueueRestAgeMs(long queueRestAgeMs) Set the time allowed before events can be requeued.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

EventController

public EventController(String serverId,
               String testRunFqn,
               EventService eventService,
               EventProcessorRegistry eventProcessors,
               ExecutorService executor,
               ResultService resultService)

Construct the controller

Parameters:

serverId - the server controlling the events

testRunFqn - the fully qualified name of the test run

eventService - the source of events that will be pushed for execution

eventProcessors - the registry of processors for events

executor - the service that will provide the worker threads for processing

resultService - the service used to store and retrieve event results

Method Detail

setQueuePollTimeMs

public void setQueuePollTimeMs(long queuePollTimeMs)

The time between polls of the event provider. Default is DEFAULT_QUEUE_POLL_TIME_MS.

Parameters:

queuePollTimeMs - the time between checks for events

setQueueRestAgeMs

public void setQueueRestAgeMs(long queueRestAgeMs)

Set the time allowed before events can be requeued. Default is DEFAULT_QUEUE_REST_AGE_MS.

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
                           throws org.springframework.beans.BeansException

Record the application context for shutdown once processing has finished

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException

onApplicationEvent

public void onApplicationEvent(org.springframework.context.event.ApplicationContextEvent event)

The application context is started externally but may be stopped internally

Specified by:

onApplicationEvent in interface org.springframework.context.ApplicationListener<org.springframework.context.event.ApplicationContextEvent>

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread