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Embedded-Web Distribution of the Payara Project
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// Portions Copyright [2018-2021] [Payara Foundation and/or its affiliates]
package com.sun.ejb.containers;
import java.io.Serializable;
import java.util.Collection;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
import static java.util.logging.Level.WARNING;
import jakarta.ejb.FinderException;
public class NonPersistentEJBTimerService extends EJBTimerService {
protected NonPersistentEJBTimerService() throws Exception {
super();
}
@Override
public boolean isPersistent() {
return false;
}
/**
* Check if timerId represents nonpersistent timer.
* Used by subclasses to determine whether this class would handle the actions on
* this timer.
* @param timerId id of the timer
* @return true if timerId represents valid active timer
* @throws FinderException if timerId represents expired nonpersistent timer
*/
protected boolean isNonpersistent(TimerPrimaryKey timerId) throws FinderException {
RuntimeTimerState rt = getNonPersistentTimer(timerId);
if (rt == null) {
// not found, probably persistent
return false;
}
checkNonpersistentTimerValid(rt);
// valid non-persistent timer
return true;
}
@Override
public int migrateTimers(String fromOwnerId) {
throw new IllegalStateException("Non-persistent timers cannot be migrated");
}
@Override
protected void cancelTimer(TimerPrimaryKey timerId)
throws FinderException, Exception {
if (!cancelNonPersistentTimer(timerId)) {
// timer was not found, but this is the primary timer store, therefore it is an error
checkNonpersistentTimerValid(null);
}
}
@Override
protected void cancelTimersByKey(long containerId, Object primaryKey) {
Collection timerIds = getTimerIds(containerId, primaryKey);
for(TimerPrimaryKey timerId : timerIds) {
try {
cancelTimer(timerId);
} catch (Exception ex) {
logger.log(WARNING, "Cannot cancel non-persistent timer " + timerId, ex);
}
}
}
@Override
protected Date getNextTimeout(TimerPrimaryKey timerId) throws FinderException {
RuntimeTimerState rt = getNonPersistentTimer(timerId);
if (rt != null) {
return _getNextTimeout(rt);
}
throw new FinderException("Timer does not exist");
}
@Override
protected boolean isValidTimerForThisServer(
TimerPrimaryKey timerId,
RuntimeTimerState timerState) {
return true;
}
protected boolean cancelNonPersistentTimer(TimerPrimaryKey timerId)
throws FinderException, Exception {
RuntimeTimerState rt = getNonPersistentTimerState(timerId);
if (rt == null) {
return false;
}
checkNonpersistentTimerValid(rt);
cancelTimerSynchronization(null, timerId,
rt.getContainerId(), ownerIdOfThisServer_, false);
return true;
}
private static void checkNonpersistentTimerValid(RuntimeTimerState st) throws FinderException {
if (st == null || st.isCancelled() || st.isExpired()) {
String id = st == null ? "" : (st.getTimerId()+" ");
throw new FinderException("Timer " + id + "is no longer active");
}
}
private RuntimeTimerState getNonPersistentTimerState(TimerPrimaryKey timerId) {
return timerCache_.getNonPersistentTimerState(timerId);
}
// Returns a Set of active non-persistent timer ids for this server
@Override
public Set getNonPersistentActiveTimerIdsByThisServer() {
return timerCache_.getNonPersistentActiveTimerIdsByThisServer();
}
protected RuntimeTimerState getNonPersistentTimer(TimerPrimaryKey timerId)
throws FinderException {
RuntimeTimerState rt = getNonPersistentTimerState(timerId);
if (rt != null) {
if (rt.isCancelled()) {
// The timer has been cancelled within this tx.
throw new FinderException("Non-persistent timer " + timerId
+ " does not exist");
}
}
return rt;
}
@Override
protected EJBTimerSchedule getTimerSchedule(TimerPrimaryKey timerId) throws FinderException {
// Check non-persistent timers first
EJBTimerSchedule ts = null;
RuntimeTimerState rt = getNonPersistentTimer(timerId);
checkNonpersistentTimerValid(rt);
ts = rt.getTimerSchedule();
return ts;
}
@Override
protected boolean isPersistent(TimerPrimaryKey timerId) throws FinderException {
// Check non-persistent timers only
RuntimeTimerState rt = getNonPersistentTimer(timerId);
checkNonpersistentTimerValid(rt);
return false;
}
@Override
protected boolean timerExists(TimerPrimaryKey timerId) {
boolean exists = false;
// Check non-persistent timers only
RuntimeTimerState rt = getNonPersistentTimerState(timerId);
if (rt != null) {
exists = rt.isActive();
}
return exists;
}
@Override
protected Serializable getInfo(TimerPrimaryKey timerId) throws FinderException {
// Check non-persistent timers only
RuntimeTimerState rt = getNonPersistentTimer(timerId);
checkNonpersistentTimerValid(rt);
return rt.getInfo();
}
@Override
protected Collection getTimerIds(Collection containerIds) {
Collection timerIds = new HashSet<>();
for (long containerId : containerIds) {
timerIds.addAll(timerCache_.getNonPersistentActiveTimerIdsForContainer(containerId));
}
return timerIds;
}
@Override
protected Collection getTimerIds(
long containerId,
Object timedObjectPrimaryKey) {
Collection timerIdsForTimedObject = new HashSet<>();
// Add active non-persistent timer ids
timerIdsForTimedObject.addAll(
timerCache_.getNonPersistentActiveTimerIdsForContainer(containerId));
return timerIdsForTimedObject;
}
@Override
protected void stopTimers(long containerId) {
stopTimers(timerCache_.getNonPersistentTimerIdsForContainer(containerId));
}
@Override
protected void resetEJBTimers(String target) {
// Do nothing
}
@Override
protected void resetLastExpiration(
TimerPrimaryKey timerId,
RuntimeTimerState timerState) {
// Do nothing
}
}