/*
* Copyright (c) 2012, Niclas Hedhman. All Rights Reserved.
*
* 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.qi4j.library.scheduler.schedule;
import org.joda.time.DateTime;
import org.qi4j.api.entity.EntityBuilder;
import org.qi4j.api.injection.scope.Service;
import org.qi4j.api.injection.scope.Structure;
import org.qi4j.api.mixin.Mixins;
import org.qi4j.api.structure.Module;
import org.qi4j.api.unitofwork.UnitOfWork;
import org.qi4j.api.value.ValueBuilder;
import org.qi4j.library.scheduler.SchedulerService;
import org.qi4j.library.scheduler.Task;
import org.qi4j.library.scheduler.schedule.cron.CronSchedule;
import org.qi4j.library.scheduler.schedule.once.OnceSchedule;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Mixins( ScheduleFactory.Mixin.class )
public interface ScheduleFactory
{
Schedule newCronSchedule( Task task, String cronExpression, DateTime start, boolean durable );
Schedule newOnceSchedule( Task task, DateTime runAt, boolean durable );
class Mixin
implements ScheduleFactory
{
private static final Logger logger = LoggerFactory.getLogger( ScheduleFactory.class );
@Structure
private Module module;
@Service
private SchedulerService scheduler;
@Override
public CronSchedule newCronSchedule( Task task, String cronExpression, DateTime start, boolean durable )
{
if( durable )
{
return newPersistentCronSchedule( task, cronExpression, start );
}
return newTransientCronSchedule( task, cronExpression, start );
}
@Override
public Schedule newOnceSchedule( Task task, DateTime runAt, boolean durable )
{
if( durable )
{
return newPersistentOnceSchedule( task, runAt );
}
return newTransientOnceSchedule( task, runAt );
}
private CronSchedule newTransientCronSchedule( Task task, String cronExpression, DateTime start )
{
ValueBuilder<CronSchedule> builder = module.newValueBuilder( CronSchedule.class );
CronSchedule prototype = builder.prototype();
prototype.task().set( task );
prototype.start().set( start );
prototype.cronExpression().set( cronExpression );
CronSchedule schedule = builder.newInstance();
logger.info( "Schedule {} created: {}", schedule.presentationString(), schedule.identity().get() );
return schedule;
}
private CronSchedule newPersistentCronSchedule( Task task, String cronExpression, DateTime start )
{
UnitOfWork uow = module.currentUnitOfWork();
EntityBuilder<CronSchedule> builder = uow.newEntityBuilder( CronSchedule.class );
CronSchedule builderInstance = builder.instance();
builderInstance.task().set( task );
builderInstance.start().set( start );
builderInstance.cronExpression().set( cronExpression );
CronSchedule schedule = builder.newInstance();
logger.info( "Schedule {} created: {}", schedule.presentationString(), schedule.identity().get() );
return schedule;
}
private Schedule newTransientOnceSchedule( Task task, DateTime runAt )
{
ValueBuilder<OnceSchedule> builder = module.newValueBuilder( OnceSchedule.class );
OnceSchedule builderInstance = builder.prototype();
builderInstance.task().set( task );
builderInstance.start().set( runAt );
OnceSchedule schedule = builder.newInstance();
logger.info( "Schedule {} created: {}", schedule.presentationString(), schedule.identity().get() );
return schedule;
}
private Schedule newPersistentOnceSchedule( Task task, DateTime runAt )
{
UnitOfWork uow = module.currentUnitOfWork();
EntityBuilder<OnceSchedule> builder = uow.newEntityBuilder( OnceSchedule.class );
OnceSchedule builderInstance = builder.instance();
builderInstance.task().set( task );
builderInstance.start().set( runAt );
OnceSchedule schedule = builder.newInstance();
logger.info( "Schedule {} created: {}", schedule.presentationString(), schedule.identity().get() );
return schedule;
}
}
}