/*
* Copyright 2002-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.scheduling.quartz;
import java.io.IOException;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Executor;
import javax.sql.DataSource;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.impl.RemoteScheduler;
import org.quartz.impl.SchedulerRepository;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.simpl.SimpleThreadPool;
import org.quartz.spi.JobFactory;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.SmartLifecycle;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.core.io.support.PropertiesLoaderUtils;
import org.springframework.scheduling.SchedulingException;
import org.springframework.util.CollectionUtils;
/**
* {@link FactoryBean} that creates and configures a Quartz {@link org.quartz.Scheduler},
* manages its lifecycle as part of the Spring application context, and exposes the
* Scheduler as bean reference for dependency injection.
*
* <p>Allows registration of JobDetails, Calendars and Triggers, automatically
* starting the scheduler on initialization and shutting it down on destruction.
* In scenarios that just require static registration of jobs at startup, there
* is no need to access the Scheduler instance itself in application code.
*
* <p>For dynamic registration of jobs at runtime, use a bean reference to
* this SchedulerFactoryBean to get direct access to the Quartz Scheduler
* (<code>org.quartz.Scheduler</code>). This allows you to create new jobs
* and triggers, and also to control and monitor the entire Scheduler.
*
* <p>Note that Quartz instantiates a new Job for each execution, in
* contrast to Timer which uses a TimerTask instance that is shared
* between repeated executions. Just JobDetail descriptors are shared.
*
* <p>When using persistent jobs, it is strongly recommended to perform all
* operations on the Scheduler within Spring-managed (or plain JTA) transactions.
* Else, database locking will not properly work and might even break.
* (See {@link #setDataSource setDataSource} javadoc for details.)
*
* <p>The preferred way to achieve transactional execution is to demarcate
* declarative transactions at the business facade level, which will
* automatically apply to Scheduler operations performed within those scopes.
* Alternatively, you may add transactional advice for the Scheduler itself.
*
* <p><b>Note:</b> This version of Spring's SchedulerFactoryBean requires
* Quartz 1.5.x or 1.6.x. The "jobSchedulingDataLocation" feature requires
* Quartz 1.6.1 or higher (as of Spring 2.5.5).
*
* @author Juergen Hoeller
* @since 18.02.2004
* @see #setDataSource
* @see org.quartz.Scheduler
* @see org.quartz.SchedulerFactory
* @see org.quartz.impl.StdSchedulerFactory
* @see org.springframework.transaction.interceptor.TransactionProxyFactoryBean
*/
public class SchedulerFactoryBean extends SchedulerAccessor implements FactoryBean<Scheduler>, BeanNameAware,
ApplicationContextAware, InitializingBean, DisposableBean, SmartLifecycle {
public static final String PROP_THREAD_COUNT = "org.quartz.threadPool.threadCount";
public static final int DEFAULT_THREAD_COUNT = 10;
private static final ThreadLocal<ResourceLoader> configTimeResourceLoaderHolder =
new ThreadLocal<ResourceLoader>();
private static final ThreadLocal<Executor> configTimeTaskExecutorHolder =
new ThreadLocal<Executor>();
private static final ThreadLocal<DataSource> configTimeDataSourceHolder =
new ThreadLocal<DataSource>();
private static final ThreadLocal<DataSource> configTimeNonTransactionalDataSourceHolder =
new ThreadLocal<DataSource>();
/**
* Return the ResourceLoader for the currently configured Quartz Scheduler,
* to be used by ResourceLoaderClassLoadHelper.
* <p>This instance will be set before initialization of the corresponding
* Scheduler, and reset immediately afterwards. It is thus only available
* during configuration.
* @see #setApplicationContext
* @see ResourceLoaderClassLoadHelper
*/
public static ResourceLoader getConfigTimeResourceLoader() {
return configTimeResourceLoaderHolder.get();
}
/**
* Return the TaskExecutor for the currently configured Quartz Scheduler,
* to be used by LocalTaskExecutorThreadPool.
* <p>This instance will be set before initialization of the corresponding
* Scheduler, and reset immediately afterwards. It is thus only available
* during configuration.
* @see #setTaskExecutor
* @see LocalTaskExecutorThreadPool
*/
public static Executor getConfigTimeTaskExecutor() {
return configTimeTaskExecutorHolder.get();
}
/**
* Return the DataSource for the currently configured Quartz Scheduler,
* to be used by LocalDataSourceJobStore.
* <p>This instance will be set before initialization of the corresponding
* Scheduler, and reset immediately afterwards. It is thus only available
* during configuration.
* @see #setDataSource
* @see LocalDataSourceJobStore
*/
public static DataSource getConfigTimeDataSource() {
return configTimeDataSourceHolder.get();
}
/**
* Return the non-transactional DataSource for the currently configured
* Quartz Scheduler, to be used by LocalDataSourceJobStore.
* <p>This instance will be set before initialization of the corresponding
* Scheduler, and reset immediately afterwards. It is thus only available
* during configuration.
* @see #setNonTransactionalDataSource
* @see LocalDataSourceJobStore
*/
public static DataSource getConfigTimeNonTransactionalDataSource() {
return configTimeNonTransactionalDataSourceHolder.get();
}
private Class<?> schedulerFactoryClass = StdSchedulerFactory.class;
private String schedulerName;
private Resource configLocation;
private Properties quartzProperties;
private Executor taskExecutor;
private DataSource dataSource;
private DataSource nonTransactionalDataSource;
private Map schedulerContextMap;
private ApplicationContext applicationContext;
private String applicationContextSchedulerContextKey;
private JobFactory jobFactory;
private boolean jobFactorySet = false;
private boolean autoStartup = true;
private int startupDelay = 0;
private int phase = Integer.MAX_VALUE;
private boolean exposeSchedulerInRepository = false;
private boolean waitForJobsToCompleteOnShutdown = false;
private Scheduler scheduler;
/**
* Set the Quartz SchedulerFactory implementation to use.
* <p>Default is StdSchedulerFactory, reading in the standard
* <code>quartz.properties</code> from <code>quartz.jar</code>.
* To use custom Quartz properties, specify the "configLocation"
* or "quartzProperties" bean property on this FactoryBean.
* @see org.quartz.impl.StdSchedulerFactory
* @see #setConfigLocation
* @see #setQuartzProperties
*/
public void setSchedulerFactoryClass(Class schedulerFactoryClass) {
if (schedulerFactoryClass == null || !SchedulerFactory.class.isAssignableFrom(schedulerFactoryClass)) {
throw new IllegalArgumentException("schedulerFactoryClass must implement [org.quartz.SchedulerFactory]");
}
this.schedulerFactoryClass = schedulerFactoryClass;
}
/**
* Set the name of the Scheduler to create via the SchedulerFactory.
* <p>If not specified, the bean name will be used as default scheduler name.
* @see #setBeanName
* @see org.quartz.SchedulerFactory#getScheduler()
* @see org.quartz.SchedulerFactory#getScheduler(String)
*/
public void setSchedulerName(String schedulerName) {
this.schedulerName = schedulerName;
}
/**
* Set the location of the Quartz properties config file, for example
* as classpath resource "classpath:quartz.properties".
* <p>Note: Can be omitted when all necessary properties are specified
* locally via this bean, or when relying on Quartz' default configuration.
* @see #setQuartzProperties
*/
public void setConfigLocation(Resource configLocation) {
this.configLocation = configLocation;
}
/**
* Set Quartz properties, like "org.quartz.threadPool.class".
* <p>Can be used to override values in a Quartz properties config file,
* or to specify all necessary properties locally.
* @see #setConfigLocation
*/
public void setQuartzProperties(Properties quartzProperties) {
this.quartzProperties = quartzProperties;
}
/**
* Set the Spring TaskExecutor to use as Quartz backend.
* Exposed as thread pool through the Quartz SPI.
* <p>Can be used to assign a JDK 1.5 ThreadPoolExecutor or a CommonJ
* WorkManager as Quartz backend, to avoid Quartz's manual thread creation.
* <p>By default, a Quartz SimpleThreadPool will be used, configured through
* the corresponding Quartz properties.
* @see #setQuartzProperties
* @see LocalTaskExecutorThreadPool
* @see org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor
* @see org.springframework.scheduling.commonj.WorkManagerTaskExecutor
*/
public void setTaskExecutor(Executor taskExecutor) {
this.taskExecutor = taskExecutor;
}
/**
* Set the default DataSource to be used by the Scheduler. If set,
* this will override corresponding settings in Quartz properties.
* <p>Note: If this is set, the Quartz settings should not define
* a job store "dataSource" to avoid meaningless double configuration.
* <p>A Spring-specific subclass of Quartz' JobStoreCMT will be used.
* It is therefore strongly recommended to perform all operations on
* the Scheduler within Spring-managed (or plain JTA) transactions.
* Else, database locking will not properly work and might even break
* (e.g. if trying to obtain a lock on Oracle without a transaction).
* <p>Supports both transactional and non-transactional DataSource access.
* With a non-XA DataSource and local Spring transactions, a single DataSource
* argument is sufficient. In case of an XA DataSource and global JTA transactions,
* SchedulerFactoryBean's "nonTransactionalDataSource" property should be set,
* passing in a non-XA DataSource that will not participate in global transactions.
* @see #setNonTransactionalDataSource
* @see #setQuartzProperties
* @see #setTransactionManager
* @see LocalDataSourceJobStore
*/
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
/**
* Set the DataSource to be used by the Scheduler <i>for non-transactional access</i>.
* <p>This is only necessary if the default DataSource is an XA DataSource that will
* always participate in transactions: A non-XA version of that DataSource should
* be specified as "nonTransactionalDataSource" in such a scenario.
* <p>This is not relevant with a local DataSource instance and Spring transactions.
* Specifying a single default DataSource as "dataSource" is sufficient there.
* @see #setDataSource
* @see LocalDataSourceJobStore
*/
public void setNonTransactionalDataSource(DataSource nonTransactionalDataSource) {
this.nonTransactionalDataSource = nonTransactionalDataSource;
}
/**
* Register objects in the Scheduler context via a given Map.
* These objects will be available to any Job that runs in this Scheduler.
* <p>Note: When using persistent Jobs whose JobDetail will be kept in the
* database, do not put Spring-managed beans or an ApplicationContext
* reference into the JobDataMap but rather into the SchedulerContext.
* @param schedulerContextAsMap Map with String keys and any objects as
* values (for example Spring-managed beans)
* @see JobDetailBean#setJobDataAsMap
*/
public void setSchedulerContextAsMap(Map schedulerContextAsMap) {
this.schedulerContextMap = schedulerContextAsMap;
}
/**
* Set the key of an ApplicationContext reference to expose in the
* SchedulerContext, for example "applicationContext". Default is none.
* Only applicable when running in a Spring ApplicationContext.
* <p>Note: When using persistent Jobs whose JobDetail will be kept in the
* database, do not put an ApplicationContext reference into the JobDataMap
* but rather into the SchedulerContext.
* <p>In case of a QuartzJobBean, the reference will be applied to the Job
* instance as bean property. An "applicationContext" attribute will
* correspond to a "setApplicationContext" method in that scenario.
* <p>Note that BeanFactory callback interfaces like ApplicationContextAware
* are not automatically applied to Quartz Job instances, because Quartz
* itself is reponsible for the lifecycle of its Jobs.
* @see JobDetailBean#setApplicationContextJobDataKey
* @see org.springframework.context.ApplicationContext
*/
public void setApplicationContextSchedulerContextKey(String applicationContextSchedulerContextKey) {
this.applicationContextSchedulerContextKey = applicationContextSchedulerContextKey;
}
/**
* Set the Quartz JobFactory to use for this Scheduler.
* <p>Default is Spring's {@link AdaptableJobFactory}, which supports
* {@link java.lang.Runnable} objects as well as standard Quartz
* {@link org.quartz.Job} instances. Note that this default only applies
* to a <i>local</i> Scheduler, not to a RemoteScheduler (where setting
* a custom JobFactory is not supported by Quartz).
* <p>Specify an instance of Spring's {@link SpringBeanJobFactory} here
* (typically as an inner bean definition) to automatically populate a job's
* bean properties from the specified job data map and scheduler context.
* @see AdaptableJobFactory
* @see SpringBeanJobFactory
*/
public void setJobFactory(JobFactory jobFactory) {
this.jobFactory = jobFactory;
this.jobFactorySet = true;
}
/**
* Set whether to automatically start the scheduler after initialization.
* <p>Default is "true"; set this to "false" to allow for manual startup.
*/
public void setAutoStartup(boolean autoStartup) {
this.autoStartup = autoStartup;
}
/**
* Return whether this scheduler is configured for auto-startup. If "true",
* the scheduler will start after the context is refreshed and after the
* start delay, if any.
*/
public boolean isAutoStartup() {
return this.autoStartup;
}
/**
* Specify the phase in which this scheduler should be started and
* stopped. The startup order proceeds from lowest to highest, and
* the shutdown order is the reverse of that. By default this value
* is Integer.MAX_VALUE meaning that this scheduler starts as late
* as possible and stops as soon as possible.
*/
public void setPhase(int phase) {
this.phase = phase;
}
/**
* Return the phase in which this scheduler will be started and stopped.
*/
public int getPhase() {
return this.phase;
}
/**
* Set the number of seconds to wait after initialization before
* starting the scheduler asynchronously. Default is 0, meaning
* immediate synchronous startup on initialization of this bean.
* <p>Setting this to 10 or 20 seconds makes sense if no jobs
* should be run before the entire application has started up.
*/
public void setStartupDelay(int startupDelay) {
this.startupDelay = startupDelay;
}
/**
* Set whether to expose the Spring-managed {@link Scheduler} instance in the
* Quartz {@link SchedulerRepository}. Default is "false", since the Spring-managed
* Scheduler is usually exclusively intended for access within the Spring context.
* <p>Switch this flag to "true" in order to expose the Scheduler globally.
* This is not recommended unless you have an existing Spring application that
* relies on this behavior. Note that such global exposure was the accidental
* default in earlier Spring versions; this has been fixed as of Spring 2.5.6.
*/
public void setExposeSchedulerInRepository(boolean exposeSchedulerInRepository) {
this.exposeSchedulerInRepository = exposeSchedulerInRepository;
}
/**
* Set whether to wait for running jobs to complete on shutdown.
* <p>Default is "false". Switch this to "true" if you prefer
* fully completed jobs at the expense of a longer shutdown phase.
* @see org.quartz.Scheduler#shutdown(boolean)
*/
public void setWaitForJobsToCompleteOnShutdown(boolean waitForJobsToCompleteOnShutdown) {
this.waitForJobsToCompleteOnShutdown = waitForJobsToCompleteOnShutdown;
}
public void setBeanName(String name) {
if (this.schedulerName == null) {
this.schedulerName = name;
}
}
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
//---------------------------------------------------------------------
// Implementation of InitializingBean interface
//---------------------------------------------------------------------
public void afterPropertiesSet() throws Exception {
if (this.dataSource == null && this.nonTransactionalDataSource != null) {
this.dataSource = this.nonTransactionalDataSource;
}
if (this.applicationContext != null && this.resourceLoader == null) {
this.resourceLoader = this.applicationContext;
}
// Create SchedulerFactory instance.
SchedulerFactory schedulerFactory = (SchedulerFactory)
BeanUtils.instantiateClass(this.schedulerFactoryClass);
initSchedulerFactory(schedulerFactory);
if (this.resourceLoader != null) {
// Make given ResourceLoader available for SchedulerFactory configuration.
configTimeResourceLoaderHolder.set(this.resourceLoader);
}
if (this.taskExecutor != null) {
// Make given TaskExecutor available for SchedulerFactory configuration.
configTimeTaskExecutorHolder.set(this.taskExecutor);
}
if (this.dataSource != null) {
// Make given DataSource available for SchedulerFactory configuration.
configTimeDataSourceHolder.set(this.dataSource);
}
if (this.nonTransactionalDataSource != null) {
// Make given non-transactional DataSource available for SchedulerFactory configuration.
configTimeNonTransactionalDataSourceHolder.set(this.nonTransactionalDataSource);
}
// Get Scheduler instance from SchedulerFactory.
try {
this.scheduler = createScheduler(schedulerFactory, this.schedulerName);
populateSchedulerContext();
if (!this.jobFactorySet && !(this.scheduler instanceof RemoteScheduler)) {
// Use AdaptableJobFactory as default for a local Scheduler, unless when
// explicitly given a null value through the "jobFactory" bean property.
this.jobFactory = new AdaptableJobFactory();
}
if (this.jobFactory != null) {
if (this.jobFactory instanceof SchedulerContextAware) {
((SchedulerContextAware) this.jobFactory).setSchedulerContext(this.scheduler.getContext());
}
this.scheduler.setJobFactory(this.jobFactory);
}
}
finally {
if (this.resourceLoader != null) {
configTimeResourceLoaderHolder.remove();
}
if (this.taskExecutor != null) {
configTimeTaskExecutorHolder.remove();
}
if (this.dataSource != null) {
configTimeDataSourceHolder.remove();
}
if (this.nonTransactionalDataSource != null) {
configTimeNonTransactionalDataSourceHolder.remove();
}
}
registerListeners();
registerJobsAndTriggers();
}
/**
* Load and/or apply Quartz properties to the given SchedulerFactory.
* @param schedulerFactory the SchedulerFactory to initialize
*/
private void initSchedulerFactory(SchedulerFactory schedulerFactory)
throws SchedulerException, IOException {
if (!(schedulerFactory instanceof StdSchedulerFactory)) {
if (this.configLocation != null || this.quartzProperties != null ||
this.taskExecutor != null || this.dataSource != null) {
throw new IllegalArgumentException(
"StdSchedulerFactory required for applying Quartz properties: " + schedulerFactory);
}
// Otherwise assume that no initialization is necessary...
return;
}
Properties mergedProps = new Properties();
if (this.resourceLoader != null) {
mergedProps.setProperty(StdSchedulerFactory.PROP_SCHED_CLASS_LOAD_HELPER_CLASS,
ResourceLoaderClassLoadHelper.class.getName());
}
if (this.taskExecutor != null) {
mergedProps.setProperty(StdSchedulerFactory.PROP_THREAD_POOL_CLASS,
LocalTaskExecutorThreadPool.class.getName());
}
else {
// Set necessary default properties here, as Quartz will not apply
// its default configuration when explicitly given properties.
mergedProps.setProperty(StdSchedulerFactory.PROP_THREAD_POOL_CLASS, SimpleThreadPool.class.getName());
mergedProps.setProperty(PROP_THREAD_COUNT, Integer.toString(DEFAULT_THREAD_COUNT));
}
if (this.configLocation != null) {
if (logger.isInfoEnabled()) {
logger.info("Loading Quartz config from [" + this.configLocation + "]");
}
PropertiesLoaderUtils.fillProperties(mergedProps, this.configLocation);
}
CollectionUtils.mergePropertiesIntoMap(this.quartzProperties, mergedProps);
if (this.dataSource != null) {
mergedProps.put(StdSchedulerFactory.PROP_JOB_STORE_CLASS, LocalDataSourceJobStore.class.getName());
}
// Make sure to set the scheduler name as configured in the Spring configuration.
if (this.schedulerName != null) {
mergedProps.put(StdSchedulerFactory.PROP_SCHED_INSTANCE_NAME, this.schedulerName);
}
((StdSchedulerFactory) schedulerFactory).initialize(mergedProps);
}
/**
* Create the Scheduler instance for the given factory and scheduler name.
* Called by {@link #afterPropertiesSet}.
* <p>The default implementation invokes SchedulerFactory's <code>getScheduler</code>
* method. Can be overridden for custom Scheduler creation.
* @param schedulerFactory the factory to create the Scheduler with
* @param schedulerName the name of the scheduler to create
* @return the Scheduler instance
* @throws SchedulerException if thrown by Quartz methods
* @see #afterPropertiesSet
* @see org.quartz.SchedulerFactory#getScheduler
*/
protected Scheduler createScheduler(SchedulerFactory schedulerFactory, String schedulerName)
throws SchedulerException {
// Override thread context ClassLoader to work around naive Quartz ClassLoadHelper loading.
Thread currentThread = Thread.currentThread();
ClassLoader threadContextClassLoader = currentThread.getContextClassLoader();
boolean overrideClassLoader = (this.resourceLoader != null &&
!this.resourceLoader.getClassLoader().equals(threadContextClassLoader));
if (overrideClassLoader) {
currentThread.setContextClassLoader(this.resourceLoader.getClassLoader());
}
try {
SchedulerRepository repository = SchedulerRepository.getInstance();
synchronized (repository) {
Scheduler existingScheduler = (schedulerName != null ? repository.lookup(schedulerName) : null);
Scheduler newScheduler = schedulerFactory.getScheduler();
if (newScheduler == existingScheduler) {
throw new IllegalStateException("Active Scheduler of name '" + schedulerName + "' already registered " +
"in Quartz SchedulerRepository. Cannot create a new Spring-managed Scheduler of the same name!");
}
if (!this.exposeSchedulerInRepository) {
// Need to remove it in this case, since Quartz shares the Scheduler instance by default!
SchedulerRepository.getInstance().remove(newScheduler.getSchedulerName());
}
return newScheduler;
}
}
finally {
if (overrideClassLoader) {
// Reset original thread context ClassLoader.
currentThread.setContextClassLoader(threadContextClassLoader);
}
}
}
/**
* Expose the specified context attributes and/or the current
* ApplicationContext in the Quartz SchedulerContext.
*/
private void populateSchedulerContext() throws SchedulerException {
// Put specified objects into Scheduler context.
if (this.schedulerContextMap != null) {
this.scheduler.getContext().putAll(this.schedulerContextMap);
}
// Register ApplicationContext in Scheduler context.
if (this.applicationContextSchedulerContextKey != null) {
if (this.applicationContext == null) {
throw new IllegalStateException(
"SchedulerFactoryBean needs to be set up in an ApplicationContext " +
"to be able to handle an 'applicationContextSchedulerContextKey'");
}
this.scheduler.getContext().put(this.applicationContextSchedulerContextKey, this.applicationContext);
}
}
/**
* Start the Quartz Scheduler, respecting the "startupDelay" setting.
* @param scheduler the Scheduler to start
* @param startupDelay the number of seconds to wait before starting
* the Scheduler asynchronously
*/
protected void startScheduler(final Scheduler scheduler, final int startupDelay) throws SchedulerException {
if (startupDelay <= 0) {
logger.info("Starting Quartz Scheduler now");
scheduler.start();
}
else {
if (logger.isInfoEnabled()) {
logger.info("Will start Quartz Scheduler [" + scheduler.getSchedulerName() +
"] in " + startupDelay + " seconds");
}
Thread schedulerThread = new Thread() {
@Override
public void run() {
try {
Thread.sleep(startupDelay * 1000);
}
catch (InterruptedException ex) {
// simply proceed
}
if (logger.isInfoEnabled()) {
logger.info("Starting Quartz Scheduler now, after delay of " + startupDelay + " seconds");
}
try {
scheduler.start();
}
catch (SchedulerException ex) {
throw new SchedulingException("Could not start Quartz Scheduler after delay", ex);
}
}
};
schedulerThread.setName("Quartz Scheduler [" + scheduler.getSchedulerName() + "]");
schedulerThread.setDaemon(true);
schedulerThread.start();
}
}
//---------------------------------------------------------------------
// Implementation of FactoryBean interface
//---------------------------------------------------------------------
@Override
public Scheduler getScheduler() {
return this.scheduler;
}
public Scheduler getObject() {
return this.scheduler;
}
public Class<? extends Scheduler> getObjectType() {
return (this.scheduler != null) ? this.scheduler.getClass() : Scheduler.class;
}
public boolean isSingleton() {
return true;
}
//---------------------------------------------------------------------
// Implementation of Lifecycle interface
//---------------------------------------------------------------------
public void start() throws SchedulingException {
if (this.scheduler != null) {
try {
startScheduler(this.scheduler, this.startupDelay);
}
catch (SchedulerException ex) {
throw new SchedulingException("Could not start Quartz Scheduler", ex);
}
}
}
public void stop() throws SchedulingException {
if (this.scheduler != null) {
try {
this.scheduler.standby();
}
catch (SchedulerException ex) {
throw new SchedulingException("Could not stop Quartz Scheduler", ex);
}
}
}
public void stop(Runnable callback) throws SchedulingException {
stop();
callback.run();
}
public boolean isRunning() throws SchedulingException {
if (this.scheduler != null) {
try {
return !this.scheduler.isInStandbyMode();
}
catch (SchedulerException ex) {
return false;
}
}
return false;
}
//---------------------------------------------------------------------
// Implementation of DisposableBean interface
//---------------------------------------------------------------------
/**
* Shut down the Quartz scheduler on bean factory shutdown,
* stopping all scheduled jobs.
*/
public void destroy() throws SchedulerException {
logger.info("Shutting down Quartz Scheduler");
this.scheduler.shutdown(this.waitForJobsToCompleteOnShutdown);
}
}
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