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package com.sun.ejb.containers;
import com.sun.enterprise.deployment.EjbBundleDescriptor;
import org.glassfish.ejb.deployment.descriptor.EjbDescriptor;
import java.util.Date;
import java.util.Collection;
import java.util.Set;
import java.util.HashSet;
import java.util.Iterator;
import java.io.Serializable;
import javax.ejb.EJBLocalObject;
import javax.ejb.TimerService;
import javax.ejb.Timer;
import javax.ejb.TimerConfig;
import javax.ejb.ScheduleExpression;
import javax.ejb.EJBException;
import javax.ejb.FinderException;
import javax.ejb.CreateException;
import javax.ejb.EntityContext;
/*
* EJBTimerServiceWrappers is the application-level representation
* of the EJB timer service.
*
* @author Kenneth Saks
*/
public class EJBTimerServiceWrapper implements TimerService {
private EJBTimerService timerService_;
private EJBContextImpl ejbContext_;
private EjbDescriptor ejbDescriptor_;
private boolean entity_;
// Only used for entity beans
private Object timedObjectPrimaryKey_;
public EJBTimerServiceWrapper(EJBTimerService timerService,
EJBContextImpl ejbContext)
{
timerService_ = timerService;
ejbContext_ = ejbContext;
BaseContainer container = (BaseContainer) ejbContext.getContainer();
ejbDescriptor_ = container.getEjbDescriptor();
entity_ = false;
timedObjectPrimaryKey_ = null;
}
public EJBTimerServiceWrapper(EJBTimerService timerService,
EntityContext entityContext)
{
this(timerService, ((EJBContextImpl)entityContext));
entity_ = true;
// Delay access of primary key since this might have been called
// from ejbCreate
timedObjectPrimaryKey_ = null;
}
public Timer createTimer(long duration, Serializable info)
throws IllegalArgumentException, IllegalStateException, EJBException {
checkCreateTimerCallPermission();
checkDuration(duration);
return createTimerInternal(duration, 0, info);
}
public Timer createTimer(long initialDuration, long intervalDuration,
Serializable info)
throws IllegalArgumentException, IllegalStateException, EJBException {
checkCreateTimerCallPermission();
checkInitialDuration(initialDuration);
return createTimerInternal(initialDuration, intervalDuration, info);
}
public Timer createTimer(Date expiration, Serializable info)
throws IllegalArgumentException, IllegalStateException, EJBException {
checkCreateTimerCallPermission();
checkExpiration(expiration);
return createTimerInternal(expiration, 0, info);
}
public Timer createTimer(Date initialExpiration, long intervalDuration,
Serializable info)
throws IllegalArgumentException, IllegalStateException, EJBException {
checkCreateTimerCallPermission();
checkExpiration(initialExpiration);
return createTimerInternal(initialExpiration, intervalDuration, info);
}
public Timer createSingleActionTimer(long duration, TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException {
checkCreateTimerCallPermission();
checkDuration(duration);
return createTimerInternal(duration, 0, timerConfig);
}
public Timer createIntervalTimer(long initialDuration,
long intervalDuration, TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException {
checkCreateTimerCallPermission();
checkInitialDuration(initialDuration);
return createTimerInternal(initialDuration, intervalDuration, timerConfig);
}
public Timer createSingleActionTimer(Date initialExpiration,
TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException {
checkCreateTimerCallPermission();
checkExpiration(initialExpiration);
return createTimerInternal(initialExpiration, 0, timerConfig);
}
public Timer createIntervalTimer(Date initialExpiration,
long intervalDuration, TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException {
checkCreateTimerCallPermission();
checkExpiration(initialExpiration);
return createTimerInternal(initialExpiration, intervalDuration, timerConfig);
}
public Timer createCalendarTimer(ScheduleExpression schedule,
TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException {
checkCreateTimerCallPermission();
checkScheduleExpression(schedule);
return createTimerInternal(schedule, timerConfig);
}
public Timer createCalendarTimer(ScheduleExpression schedule) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException {
checkCreateTimerCallPermission();
checkScheduleExpression(schedule);
TimerConfig tc = new TimerConfig();
tc.setInfo(null);
return createTimerInternal(schedule, tc);
}
public Collection getTimers() throws IllegalStateException, EJBException {
checkCallPermission();
Collection timerIds = new HashSet();
if( ejbContext_.isTimedObject() ) {
try {
timerIds = timerService_.getTimerIds
(ejbDescriptor_.getUniqueId(), getTimedObjectPrimaryKey());
} catch(Exception fe) {
EJBException ejbEx = new EJBException();
ejbEx.initCause(fe);
throw ejbEx;
}
}
Collection timerWrappers = new HashSet();
for(Iterator iter = timerIds.iterator(); iter.hasNext();) {
TimerPrimaryKey next = (TimerPrimaryKey) iter.next();
timerWrappers.add( new TimerWrapper(next, timerService_) );
}
return timerWrappers;
}
@Override
public Collection getAllTimers() throws IllegalStateException, EJBException {
checkCallPermission();
Collection timerWrappers = new HashSet();
Collection containerIds = ejbDescriptor_.getEjbBundleDescriptor().getDescriptorIds();
Collection timerIds =
timerService_.getTimerIds(containerIds);
for (TimerPrimaryKey timerPrimaryKey : timerIds) {
timerWrappers.add(new TimerWrapper(timerPrimaryKey, timerService_));
}
return timerWrappers;
}
private Object getTimedObjectPrimaryKey() {
if( !entity_ ) {
return null;
} else {
synchronized(this) {
if( timedObjectPrimaryKey_ == null ) {
timedObjectPrimaryKey_ =
((EntityContext) ejbContext_).getPrimaryKey();
}
}
}
return timedObjectPrimaryKey_;
}
private void checkCreateTimerCallPermission()
throws IllegalStateException {
if( ejbContext_.isTimedObject() ) {
checkCallPermission();
} else {
throw new IllegalStateException("EJBTimerService.createTimer can "
+ "only be called from a timed object. This EJB does not "
+ "implement javax.ejb.TimedObject");
}
}
private void checkCallPermission()
throws IllegalStateException {
ejbContext_.checkTimerServiceMethodAccess();
}
private Timer createTimerInternal(long initialDuration, long intervalDuration,
Serializable info)
throws IllegalArgumentException, IllegalStateException, EJBException {
TimerConfig tc = new TimerConfig();
tc.setInfo(info);
return createTimerInternal(initialDuration, intervalDuration, tc);
}
private Timer createTimerInternal(long initialDuration, long intervalDuration,
TimerConfig tc)
throws IllegalArgumentException, IllegalStateException, EJBException {
checkIntervalDuration(intervalDuration);
TimerPrimaryKey timerId = null;
try {
timerId = timerService_.createTimer(ejbDescriptor_.getUniqueId(),
ejbDescriptor_.getApplication().getUniqueId(),
getTimedObjectPrimaryKey(),
initialDuration, intervalDuration, tc);
} catch(CreateException ce) {
EJBException ejbEx = new EJBException();
ejbEx.initCause(ce);
throw ejbEx;
}
return new TimerWrapper(timerId, timerService_);
}
private Timer createTimerInternal(Date initialExpiration, long intervalDuration,
Serializable info)
throws IllegalArgumentException, IllegalStateException, EJBException {
TimerConfig tc = new TimerConfig();
tc.setInfo(info);
return createTimerInternal(initialExpiration, intervalDuration, tc);
}
private Timer createTimerInternal(Date initialExpiration, long intervalDuration,
TimerConfig tc)
throws IllegalArgumentException, IllegalStateException, EJBException {
checkIntervalDuration(intervalDuration);
TimerPrimaryKey timerId = null;
try {
timerId = timerService_.createTimer(ejbDescriptor_.getUniqueId(),
ejbDescriptor_.getApplication().getUniqueId(),
getTimedObjectPrimaryKey(),
initialExpiration, intervalDuration, tc);
} catch(CreateException ce) {
EJBException ejbEx = new EJBException();
ejbEx.initCause(ce);
throw ejbEx;
}
return new TimerWrapper(timerId, timerService_);
}
private Timer createTimerInternal(ScheduleExpression schedule, TimerConfig tc)
throws IllegalArgumentException, IllegalStateException, EJBException {
TimerPrimaryKey timerId = null;
try {
timerId = timerService_.createTimer(ejbDescriptor_.getUniqueId(),
ejbDescriptor_.getApplication().getUniqueId(),
getTimedObjectPrimaryKey(),
new EJBTimerSchedule(schedule), tc);
} catch(CreateException ce) {
EJBException ejbEx = new EJBException();
ejbEx.initCause(ce);
throw ejbEx;
}
return new TimerWrapper(timerId, timerService_);
}
private void checkDuration(long duration)
throws IllegalArgumentException {
if( duration < 0 ) {
throw new IllegalArgumentException("invalid duration=" + duration);
}
}
private void checkInitialDuration(long initialDuration)
throws IllegalArgumentException {
if( initialDuration < 0 ) {
throw new IllegalArgumentException("invalid initial duration = " +
initialDuration);
}
}
private void checkIntervalDuration(long intervalDuration)
throws IllegalArgumentException {
if( intervalDuration < 0 ) {
throw new IllegalArgumentException("invalid interval duration = " +
intervalDuration);
}
}
private void checkScheduleExpression(ScheduleExpression expression)
throws IllegalArgumentException {
if( expression == null ) {
throw new IllegalArgumentException("null ScheduleExpression");
}
}
private void checkExpiration(Date expiration)
throws IllegalArgumentException {
if( expiration == null ) {
throw new IllegalArgumentException("null expiration");
}
if( expiration.getTime() < 0 ) {
throw new IllegalArgumentException("Negative expiration");
}
}
}