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SDK for dev_appserver (local development) with some of the dependencies shaded (repackaged)
/*
* Copyright 2004-2005 OpenSymphony
*
* 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.
*
*/
/*
* Previously Copyright (c) 2001-2004 James House
*/
package org.quartz.impl.jdbcjobstore;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import com.google.appengine.repackaged.org.apache.commons.logging.Log;
import com.google.appengine.repackaged.org.apache.commons.logging.LogFactory;
import org.quartz.Calendar;
import org.quartz.CronTrigger;
import org.quartz.JobDataMap;
import org.quartz.JobDetail;
import org.quartz.JobPersistenceException;
import org.quartz.ObjectAlreadyExistsException;
import org.quartz.Scheduler;
import org.quartz.SchedulerConfigException;
import org.quartz.SchedulerException;
import org.quartz.SimpleTrigger;
import org.quartz.Trigger;
import org.quartz.core.SchedulingContext;
import org.quartz.spi.ClassLoadHelper;
import org.quartz.spi.JobStore;
import org.quartz.spi.SchedulerSignaler;
import org.quartz.spi.TriggerFiredBundle;
import org.quartz.utils.DBConnectionManager;
import org.quartz.utils.Key;
import org.quartz.utils.TriggerStatus;
/**
*
* Contains base functionality for JDBC-based JobStore implementations.
*
*
* @author Jeffrey Wescott
* @author James House
*/
public abstract class JobStoreSupport implements JobStore, Constants {
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Constants.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
protected static String LOCK_TRIGGER_ACCESS = "TRIGGER_ACCESS";
protected static String LOCK_JOB_ACCESS = "JOB_ACCESS";
protected static String LOCK_CALENDAR_ACCESS = "CALENDAR_ACCESS";
protected static String LOCK_STATE_ACCESS = "STATE_ACCESS";
protected static String LOCK_MISFIRE_ACCESS = "MISFIRE_ACCESS";
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Data members.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
protected String dsName;
protected String tablePrefix = DEFAULT_TABLE_PREFIX;
protected boolean useProperties = false;
protected String instanceId;
protected String instanceName;
protected String delegateClassName;
protected Class delegateClass = StdJDBCDelegate.class;
protected HashMap calendarCache = new HashMap();
private DriverDelegate delegate;
private long misfireThreshold = 60000L; // one minute
private boolean dontSetAutoCommitFalse = false;
private boolean isClustered = false;
private boolean useDBLocks = false;
private boolean lockOnInsert = true;
private Semaphore lockHandler = null; // set in initialize() method...
private String selectWithLockSQL = null;
private long clusterCheckinInterval = 7500L;
private ClusterManager clusterManagementThread = null;
private MisfireHandler misfireHandler = null;
private ClassLoadHelper classLoadHelper;
private SchedulerSignaler signaler;
protected int maxToRecoverAtATime = 20;
private boolean setTxIsolationLevelSequential = false;
private long dbRetryInterval = 10000;
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Interface.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
/**
*
* Set the name of the DataSource that should be used for
* performing database functions.
*
*/
public void setDataSource(String dsName) {
this.dsName = dsName;
}
/**
*
* Get the name of the DataSource that should be used for
* performing database functions.
*
*/
public String getDataSource() {
return dsName;
}
/**
*
* Set the prefix that should be pre-pended to all table names.
*
*/
public void setTablePrefix(String prefix) {
if (prefix == null) prefix = "";
this.tablePrefix = prefix;
}
/**
*
* Get the prefix that should be pre-pended to all table names.
*
*/
public String getTablePrefix() {
return tablePrefix;
}
/**
*
* Set whether String-only properties will be handled in JobDataMaps.
*
*/
public void setUseProperties(String useProp) {
if (useProp == null) useProp = "false";
this.useProperties = Boolean.valueOf(useProp).booleanValue();
}
/**
*
* Get whether String-only properties will be handled in JobDataMaps.
*
*/
public boolean canUseProperties() {
return useProperties;
}
/**
*
* Set the instance Id of the Scheduler (must be unique within a cluster).
*
*/
public void setInstanceId(String instanceId) {
this.instanceId = instanceId;
}
/**
*
* Get the instance Id of the Scheduler (must be unique within a cluster).
*
*/
public String getInstanceId() {
return instanceId;
}
/**
*
* Set the instance Id of the Scheduler (must be unique within a cluster).
*
*/
public void setInstanceName(String instanceName) {
this.instanceName = instanceName;
}
/**
*
* Get the instance Id of the Scheduler (must be unique within a cluster).
*
*/
public String getInstanceName() {
return instanceName;
}
/**
*
* Set whether this instance is part of a cluster.
*
*/
public void setIsClustered(boolean isClustered) {
this.isClustered = isClustered;
}
/**
*
* Get whether this instance is part of a cluster.
*
*/
public boolean isClustered() {
return isClustered;
}
/**
*
* Get the frequency (in milliseconds) at which this instance "checks-in"
* with the other instances of the cluster. -- Affects the rate of
* detecting failed instances.
*
*/
public long getClusterCheckinInterval() {
return clusterCheckinInterval;
}
/**
*
* Set the frequency (in milliseconds) at which this instance "checks-in"
* with the other instances of the cluster. -- Affects the rate of
* detecting failed instances.
*
*/
public void setClusterCheckinInterval(long l) {
clusterCheckinInterval = l;
}
/**
*
* Get the maximum number of misfired triggers that the misfire handling
* thread will try to recover at one time (within one transaction). The
* default is 20.
*
*/
public int getMaxMisfiresToHandleAtATime() {
return maxToRecoverAtATime;
}
/**
*
* Set the maximum number of misfired triggers that the misfire handling
* thread will try to recover at one time (within one transaction). The
* default is 20.
*
*/
public void setMaxMisfiresToHandleAtATime(int maxToRecoverAtATime) {
this.maxToRecoverAtATime = maxToRecoverAtATime;
}
/**
* @return Returns the dbRetryInterval.
*/
public long getDbRetryInterval() {
return dbRetryInterval;
}
/**
* @param dbRetryInterval The dbRetryInterval to set.
*/
public void setDbRetryInterval(long dbRetryInterval) {
this.dbRetryInterval = dbRetryInterval;
}
/**
*
* Set whether this instance should use database-based thread
* synchronization.
*
*/
public void setUseDBLocks(boolean useDBLocks) {
this.useDBLocks = useDBLocks;
}
/**
*
* Get whether this instance should use database-based thread
* synchronization.
*
*/
public boolean getUseDBLocks() {
return useDBLocks;
}
public boolean isLockOnInsert() {
return lockOnInsert;
}
/**
* Whether or not to obtain locks when inserting new jobs/triggers.
* Defaults to true, which is safest - some db's (such as
* MS SQLServer) seem to require this to avoid deadlocks under high load,
* while others seem to do fine without.
*
* Setting this property to false will provide a
* significant performance increase during the addition of new jobs
* and triggers.
*
* @param lockOnInsert
*/
public void setLockOnInsert(boolean lockOnInsert) {
this.lockOnInsert = lockOnInsert;
}
public long getMisfireThreshold() {
return misfireThreshold;
}
/**
* The the number of milliseconds by which a trigger must have missed its
* next-fire-time, in order for it to be considered "misfired" and thus
* have its misfire instruction applied.
*
* @param misfireThreshold
*/
public void setMisfireThreshold(long misfireThreshold) {
if (misfireThreshold < 1)
throw new IllegalArgumentException(
"Misfirethreashold must be larger than 0");
this.misfireThreshold = misfireThreshold;
}
public boolean isDontSetAutoCommitFalse() {
return dontSetAutoCommitFalse;
}
/**
* Don't call set autocommit(false) on connections obtained from the
* DataSource. This can be helpfull in a few situations, such as if you
* have a driver that complains if it is called when it is already off.
*
* @param b
*/
public void setDontSetAutoCommitFalse(boolean b) {
dontSetAutoCommitFalse = b;
}
public boolean isTxIsolationLevelSerializable() {
return setTxIsolationLevelSequential;
}
/**
* Set the transaction isolation level of DB connections to sequential.
*
* @param b
*/
public void setTxIsolationLevelSerializable(boolean b) {
setTxIsolationLevelSequential = b;
}
/**
*
* Set the JDBC driver delegate class.
*
*
* @param delegateClassName
* the delegate class name
*/
public void setDriverDelegateClass(String delegateClassName)
throws InvalidConfigurationException {
this.delegateClassName = delegateClassName;
}
/**
*
* Get the JDBC driver delegate class name.
*
*
* @return the delegate class name
*/
public String getDriverDelegateClass() {
return delegateClassName;
}
public String getSelectWithLockSQL() {
return selectWithLockSQL;
}
/**
*
* set the SQL statement to use to select and lock a row in the "locks"
* table.
*
*
* @see StdRowLockSemaphore
*/
public void setSelectWithLockSQL(String string) {
selectWithLockSQL = string;
}
protected ClassLoadHelper getClassLoadHelper() {
return classLoadHelper;
}
//---------------------------------------------------------------------------
// interface methods
//---------------------------------------------------------------------------
Log getLog() {
return LogFactory.getLog(getClass());
}
/**
*
* Called by the QuartzScheduler before the JobStore is
* used, in order to give the it a chance to initialize.
*
*/
public void initialize(ClassLoadHelper loadHelper,
SchedulerSignaler signaler) throws SchedulerConfigException {
if (dsName == null) { throw new SchedulerConfigException(
"DataSource name not set."); }
classLoadHelper = loadHelper;
this.signaler = signaler;
if (!getUseDBLocks() && !isClustered()) {
getLog()
.info(
"Using thread monitor-based data access locking (synchronization).");
lockHandler = new SimpleSemaphore();
} else {
getLog()
.info(
"Using db table-based data access locking (synchronization).");
lockHandler = new StdRowLockSemaphore(getTablePrefix(),
getSelectWithLockSQL());
}
if (!isClustered()) {
try {
cleanVolatileTriggerAndJobs();
} catch (SchedulerException se) {
throw new SchedulerConfigException(
"Failure occured during job recovery.", se);
}
}
}
/**
* @see org.quartz.spi.JobStore#schedulerStarted()
*/
public void schedulerStarted() throws SchedulerException {
if (isClustered()) {
clusterManagementThread = new ClusterManager(this);
clusterManagementThread.initialize();
}
else {
try {
recoverJobs();
} catch (SchedulerException se) {
throw new SchedulerConfigException(
"Failure occured during job recovery.", se);
}
}
misfireHandler = new MisfireHandler(this);
misfireHandler.initialize();
}
/**
*
* Called by the QuartzScheduler to inform the JobStore that
* it should free up all of it's resources because the scheduler is
* shutting down.
*
*/
public void shutdown() {
if (clusterManagementThread != null)
clusterManagementThread.shutdown();
if (misfireHandler != null) misfireHandler.shutdown();
try {
DBConnectionManager.getInstance().shutdown(getDataSource());
} catch (SQLException sqle) {
getLog().warn("Database connection shutdown unsuccessful.", sqle);
}
}
public boolean supportsPersistence() {
return true;
}
//---------------------------------------------------------------------------
// helper methods for subclasses
//---------------------------------------------------------------------------
protected Connection getConnection() throws JobPersistenceException {
try {
Connection conn = DBConnectionManager.getInstance().getConnection(
getDataSource());
if (conn == null) { throw new SQLException(
"Could not get connection from DataSource '"
+ getDataSource() + "'"); }
try {
if (!isDontSetAutoCommitFalse()) conn.setAutoCommit(false);
if(isTxIsolationLevelSerializable())
conn.setTransactionIsolation(Connection.TRANSACTION_SERIALIZABLE);
} catch (SQLException ingore) {
} catch (Exception e) {
if(conn != null)
try { conn.close(); } catch(Throwable tt) {}
throw new JobPersistenceException(
"Failure setting up connection.", e);
}
return conn;
} catch (SQLException sqle) {
throw new JobPersistenceException(
"Failed to obtain DB connection from data source '"
+ getDataSource() + "': " + sqle.toString(), sqle);
} catch (Exception e) {
throw new JobPersistenceException(
"Failed to obtain DB connection from data source '"
+ getDataSource() + "': " + e.toString(), e,
JobPersistenceException.ERR_PERSISTENCE_CRITICAL_FAILURE);
}
}
protected void releaseLock(Connection conn, String lockName, boolean doIt) {
if (doIt && conn != null) {
try {
getLockHandler().releaseLock(conn, lockName);
} catch (LockException le) {
getLog().error("Error returning lock: " + le.getMessage(),
le);
}
}
}
/**
*
* Removes all volatile data
*
*
* @throws JobPersistenceException
* if jobs could not be recovered
*/
protected abstract void cleanVolatileTriggerAndJobs()
throws JobPersistenceException;
/**
*
* Removes all volatile data.
*
*
* @throws JobPersistenceException
* if jobs could not be recovered
*/
protected void cleanVolatileTriggerAndJobs(Connection conn)
throws JobPersistenceException {
try {
// find volatile jobs & triggers...
Key[] volatileTriggers = getDelegate().selectVolatileTriggers(conn);
Key[] volatileJobs = getDelegate().selectVolatileJobs(conn);
for (int i = 0; i < volatileTriggers.length; i++) {
removeTrigger(conn, null, volatileTriggers[i].getName(),
volatileTriggers[i].getGroup());
}
getLog().info(
"Removed " + volatileTriggers.length
+ " Volatile Trigger(s).");
for (int i = 0; i < volatileJobs.length; i++) {
removeJob(conn, null, volatileJobs[i].getName(),
volatileJobs[i].getGroup(), true);
}
getLog().info(
"Removed " + volatileJobs.length + " Volatile Job(s).");
// clean up any fired trigger entries
getDelegate().deleteVolatileFiredTriggers(conn);
} catch (Exception e) {
throw new JobPersistenceException("Couldn't clean volatile data: "
+ e.getMessage(), e);
}
}
/**
*
* Will recover any failed or misfired jobs and clean up the data store as
* appropriate.
*
*
* @throws JobPersistenceException
* if jobs could not be recovered
*/
protected abstract void recoverJobs() throws JobPersistenceException;
/**
*
* Will recover any failed or misfired jobs and clean up the data store as
* appropriate.
*
*
* @throws JobPersistenceException
* if jobs could not be recovered
*/
protected void recoverJobs(Connection conn) throws JobPersistenceException {
try {
// update inconsistent job states
int rows = getDelegate().updateTriggerStatesFromOtherStates(conn,
STATE_WAITING, STATE_ACQUIRED, STATE_BLOCKED);
rows += getDelegate().updateTriggerStatesFromOtherStates(conn,
STATE_PAUSED, STATE_PAUSED_BLOCKED, STATE_PAUSED_BLOCKED);
getLog().info(
"Freed " + rows
+ " triggers from 'acquired' / 'blocked' state.");
// clean up misfired jobs
getDelegate().updateTriggerStateFromOtherStatesBeforeTime(conn,
STATE_MISFIRED, STATE_WAITING, STATE_WAITING,
getMisfireTime()); // only waiting
recoverMisfiredJobs(conn, true);
// recover jobs marked for recovery that were not fully executed
Trigger[] recoveringJobTriggers = getDelegate()
.selectTriggersForRecoveringJobs(conn);
getLog()
.info(
"Recovering "
+ recoveringJobTriggers.length
+ " jobs that were in-progress at the time of the last shut-down.");
for (int i = 0; i < recoveringJobTriggers.length; ++i) {
if (jobExists(conn, recoveringJobTriggers[i].getJobName(),
recoveringJobTriggers[i].getJobGroup())) {
recoveringJobTriggers[i].computeFirstFireTime(null);
storeTrigger(conn, null, recoveringJobTriggers[i], null, false,
STATE_WAITING, false, true);
}
}
getLog().info("Recovery complete.");
// remove lingering 'complete' triggers...
Key[] ct = getDelegate().selectTriggersInState(conn, STATE_COMPLETE);
for(int i=0; ct != null && i < ct.length; i++)
removeTrigger(conn, null, ct[i].getName(), ct[i].getGroup());
getLog().info(
"Removed " + ct.length
+ " 'complete' triggers.");
// clean up any fired trigger entries
int n = getDelegate().deleteFiredTriggers(conn);
getLog().info("Removed " + n + " stale fired job entries.");
} catch (Exception e) {
throw new JobPersistenceException("Couldn't recover jobs: "
+ e.getMessage(), e);
}
}
protected long getMisfireTime() {
long misfireTime = System.currentTimeMillis();
if (getMisfireThreshold() > 0) misfireTime -= getMisfireThreshold();
return misfireTime;
}
private int lastRecoverCount = 0;
protected boolean recoverMisfiredJobs(Connection conn, boolean recovering)
throws JobPersistenceException, NoSuchDelegateException,
SQLException, ClassNotFoundException, IOException {
Key[] misfiredTriggers = getDelegate().selectTriggersInState(conn,
STATE_MISFIRED);
if (misfiredTriggers.length > 0
&& misfiredTriggers.length > getMaxMisfiresToHandleAtATime()) getLog()
.info(
"Handling "
+ getMaxMisfiresToHandleAtATime()
+ " of "
+ misfiredTriggers.length
+ " triggers that missed their scheduled fire-time.");
else if (misfiredTriggers.length > 0) getLog().info(
"Handling " + misfiredTriggers.length
+ " triggers that missed their scheduled fire-time.");
else
getLog().debug(
"Found 0 triggers that missed their scheduled fire-time.");
lastRecoverCount = misfiredTriggers.length;
for (int i = 0; i < misfiredTriggers.length && i < getMaxMisfiresToHandleAtATime(); i++) {
Trigger trig = getDelegate().selectTrigger(conn,
misfiredTriggers[i].getName(),
misfiredTriggers[i].getGroup());
if (trig == null) continue;
Calendar cal = null;
if (trig.getCalendarName() != null)
cal = retrieveCalendar(conn, null, trig.getCalendarName());
String[] listeners = getDelegate().selectTriggerListeners(conn,
trig.getName(), trig.getGroup());
for (int l = 0; l < listeners.length; ++l) {
trig.addTriggerListener(listeners[l]);
}
signaler.notifyTriggerListenersMisfired(trig);
trig.updateAfterMisfire(cal);
if (trig.getNextFireTime() == null)
storeTrigger(conn, null, trig, null, true, STATE_COMPLETE,
false, recovering);
else
storeTrigger(conn, null, trig, null, true, STATE_WAITING,
false, recovering);
}
if (misfiredTriggers.length > getMaxMisfiresToHandleAtATime()) return true;
return false;
}
protected boolean updateMisfiredTrigger(Connection conn,
SchedulingContext ctxt, String triggerName, String groupName,
String newStateIfNotComplete, boolean forceState) // TODO: probably
// get rid of
// this
throws JobPersistenceException {
try {
Trigger trig = getDelegate().selectTrigger(conn, triggerName,
groupName);
long misfireTime = System.currentTimeMillis();
if (getMisfireThreshold() > 0)
misfireTime -= getMisfireThreshold();
if (trig.getNextFireTime().getTime() > misfireTime) return false;
Calendar cal = null;
if (trig.getCalendarName() != null)
cal = retrieveCalendar(conn, ctxt, trig.getCalendarName());
signaler.notifyTriggerListenersMisfired(trig);
trig.updateAfterMisfire(cal);
if (trig.getNextFireTime() == null) storeTrigger(conn, ctxt, trig,
null, true, STATE_COMPLETE, forceState, false);
else {
storeTrigger(conn, ctxt, trig, null, true, newStateIfNotComplete,
forceState, false);
}
return true;
} catch (Exception e) {
throw new JobPersistenceException(
"Couldn't update misfired trigger '" + groupName + "."
+ triggerName + "': " + e.getMessage(), e);
}
}
/**
*
* Insert or update a job.
*
*/
protected void storeJob(Connection conn, SchedulingContext ctxt,
JobDetail newJob, boolean replaceExisting)
throws ObjectAlreadyExistsException, JobPersistenceException {
if (newJob.isVolatile() && isClustered())
getLog()
.info(
"note: volatile jobs are effectively non-volatile in a clustered environment.");
boolean existingJob = jobExists(conn, newJob.getName(), newJob
.getGroup());
try {
if (existingJob) {
if (!replaceExisting) { throw new ObjectAlreadyExistsException(
newJob); }
getDelegate().updateJobDetail(conn, newJob);
} else {
getDelegate().insertJobDetail(conn, newJob);
}
} catch (IOException e) {
throw new JobPersistenceException("Couldn't store job: "
+ e.getMessage(), e);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't store job: "
+ e.getMessage(), e);
}
}
/**
*
* Check existence of a given job.
*
*/
protected boolean jobExists(Connection conn, String jobName,
String groupName) throws JobPersistenceException {
try {
return getDelegate().jobExists(conn, jobName, groupName);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't determine job existence (" + groupName + "."
+ jobName + "): " + e.getMessage(), e);
}
}
/**
*
* Insert or update a trigger.
*
*/
protected void storeTrigger(Connection conn, SchedulingContext ctxt,
Trigger newTrigger, JobDetail job, boolean replaceExisting, String state,
boolean forceState, boolean recovering)
throws ObjectAlreadyExistsException, JobPersistenceException {
if (newTrigger.isVolatile() && isClustered())
getLog()
.info(
"note: volatile triggers are effectively non-volatile in a clustered environment.");
boolean existingTrigger = triggerExists(conn, newTrigger.getName(),
newTrigger.getGroup());
try {
boolean shouldBepaused = false;
if (!forceState) {
shouldBepaused = getDelegate().isTriggerGroupPaused(
conn, newTrigger.getGroup());
if(!shouldBepaused) {
shouldBepaused = getDelegate().isTriggerGroupPaused(conn,
ALL_GROUPS_PAUSED);
if (shouldBepaused)
getDelegate().insertPausedTriggerGroup(conn,
newTrigger.getGroup());
}
if (shouldBepaused && (state.equals(STATE_WAITING) || state.equals(STATE_ACQUIRED)))
state = STATE_PAUSED;
}
if(job == null) {
job = getDelegate().selectJobDetail(conn,
newTrigger.getJobName(), newTrigger.getJobGroup(),
getClassLoadHelper());
}
if (job == null)
throw new JobPersistenceException("The job ("
+ newTrigger.getFullJobName()
+ ") referenced by the trigger does not exist.");
if (job.isVolatile() && !newTrigger.isVolatile())
throw new JobPersistenceException(
"It does not make sense to "
+ "associate a non-volatile Trigger with a volatile Job!");
if (job.isStateful() && !recovering) {
String bstate = getNewStatusForTrigger(conn, ctxt, job.getName(), job
.getGroup());
if(STATE_BLOCKED.equals(bstate) && STATE_WAITING.equals(state))
state = STATE_BLOCKED;
if(STATE_BLOCKED.equals(bstate) && STATE_PAUSED.equals(state))
state = STATE_PAUSED_BLOCKED;
}
if (existingTrigger) {
if (!replaceExisting) { throw new ObjectAlreadyExistsException(
newTrigger); }
if (newTrigger instanceof SimpleTrigger) {
getDelegate().updateSimpleTrigger(conn,
(SimpleTrigger) newTrigger);
} else if (newTrigger instanceof CronTrigger) {
getDelegate().updateCronTrigger(conn,
(CronTrigger) newTrigger);
} else {
getDelegate().updateBlobTrigger(conn, newTrigger);
}
getDelegate().updateTrigger(conn, newTrigger, state, job);
} else {
getDelegate().insertTrigger(conn, newTrigger, state, job);
if (newTrigger instanceof SimpleTrigger) {
getDelegate().insertSimpleTrigger(conn,
(SimpleTrigger) newTrigger);
} else if (newTrigger instanceof CronTrigger) {
getDelegate().insertCronTrigger(conn,
(CronTrigger) newTrigger);
} else {
getDelegate().insertBlobTrigger(conn, newTrigger);
}
}
} catch (Exception e) {
throw new JobPersistenceException("Couldn't store trigger: "
+ e.getMessage(), e);
}
}
/**
*
* Check existence of a given trigger.
*
*/
protected boolean triggerExists(Connection conn, String triggerName,
String groupName) throws JobPersistenceException {
try {
return getDelegate().triggerExists(conn, triggerName, groupName);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't determine trigger existence (" + groupName + "."
+ triggerName + "): " + e.getMessage(), e);
}
}
protected boolean removeJob(Connection conn, SchedulingContext ctxt,
String jobName, String groupName, boolean activeDeleteSafe)
throws JobPersistenceException {
try {
Key[] jobTriggers = getDelegate().selectTriggerNamesForJob(conn,
jobName, groupName);
for (int i = 0; i < jobTriggers.length; ++i) {
getDelegate().deleteSimpleTrigger(conn,
jobTriggers[i].getName(), jobTriggers[i].getGroup());
getDelegate().deleteCronTrigger(conn, jobTriggers[i].getName(),
jobTriggers[i].getGroup());
getDelegate().deleteBlobTrigger(conn, jobTriggers[i].getName(),
jobTriggers[i].getGroup());
getDelegate().deleteTriggerListeners(conn,
jobTriggers[i].getName(), jobTriggers[i].getGroup());
getDelegate().deleteTrigger(conn, jobTriggers[i].getName(),
jobTriggers[i].getGroup());
}
getDelegate().deleteJobListeners(conn, jobName, groupName);
if (getDelegate().deleteJobDetail(conn, jobName, groupName) > 0) {
return true;
} else {
return false;
}
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't remove job: "
+ e.getMessage(), e);
}
}
protected JobDetail retrieveJob(Connection conn, SchedulingContext ctxt,
String jobName, String groupName) throws JobPersistenceException {
try {
JobDetail job = getDelegate().selectJobDetail(conn, jobName,
groupName, getClassLoadHelper());
String[] listeners = getDelegate().selectJobListeners(conn,
jobName, groupName);
for (int i = 0; i < listeners.length; ++i) {
job.addJobListener(listeners[i]);
}
return job;
} catch (ClassNotFoundException e) {
throw new JobPersistenceException(
"Couldn't retrieve job because a required class was not found: "
+ e.getMessage(), e,
SchedulerException.ERR_PERSISTENCE_JOB_DOES_NOT_EXIST);
} catch (IOException e) {
throw new JobPersistenceException(
"Couldn't retrieve job because the BLOB couldn't be deserialized: "
+ e.getMessage(), e,
SchedulerException.ERR_PERSISTENCE_JOB_DOES_NOT_EXIST);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't retrieve job: "
+ e.getMessage(), e);
}
}
protected boolean removeTrigger(Connection conn, SchedulingContext ctxt,
String triggerName, String groupName)
throws JobPersistenceException {
boolean removedTrigger = false;
try {
// this must be called before we delete the trigger, obviously
JobDetail job = getDelegate().selectJobForTrigger(conn,
triggerName, groupName, getClassLoadHelper());
getDelegate().deleteSimpleTrigger(conn, triggerName, groupName);
getDelegate().deleteCronTrigger(conn, triggerName, groupName);
getDelegate().deleteBlobTrigger(conn, triggerName, groupName);
getDelegate().deleteTriggerListeners(conn, triggerName, groupName);
removedTrigger = (getDelegate().deleteTrigger(conn, triggerName,
groupName) > 0);
if (null != job && !job.isDurable()) {
int numTriggers = getDelegate().selectNumTriggersForJob(conn,
job.getName(), job.getGroup());
if (numTriggers == 0) {
removeJob(conn, ctxt, job.getName(), job.getGroup(), true);
}
}
} catch (ClassNotFoundException e) {
throw new JobPersistenceException("Couldn't remove trigger: "
+ e.getMessage(), e);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't remove trigger: "
+ e.getMessage(), e);
}
return removedTrigger;
}
protected boolean replaceTrigger(Connection conn, SchedulingContext ctxt,
String triggerName, String groupName, Trigger newTrigger)
throws JobPersistenceException {
boolean removedTrigger = false;
try {
// this must be called before we delete the trigger, obviously
JobDetail job = getDelegate().selectJobForTrigger(conn,
triggerName, groupName, getClassLoadHelper());
if(job == null)
return false;
if(!newTrigger.getJobName().equals(job.getName()) ||
!newTrigger.getJobGroup().equals(job.getGroup()))
throw new JobPersistenceException("New trigger is not related to the same job as the old trigger.");
getDelegate().deleteSimpleTrigger(conn, triggerName, groupName);
getDelegate().deleteCronTrigger(conn, triggerName, groupName);
getDelegate().deleteBlobTrigger(conn, triggerName, groupName);
getDelegate().deleteTriggerListeners(conn, triggerName, groupName);
removedTrigger = (getDelegate().deleteTrigger(conn, triggerName,
groupName) > 0);
storeTrigger(conn, ctxt, newTrigger, job, false, STATE_WAITING, false, false);
} catch (ClassNotFoundException e) {
throw new JobPersistenceException("Couldn't remove trigger: "
+ e.getMessage(), e);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't remove trigger: "
+ e.getMessage(), e);
}
return removedTrigger;
}
protected Trigger retrieveTrigger(Connection conn, SchedulingContext ctxt,
String triggerName, String groupName)
throws JobPersistenceException {
try {
Trigger trigger = getDelegate().selectTrigger(conn, triggerName,
groupName);
if (trigger == null) return null;
String[] listeners = getDelegate().selectTriggerListeners(conn,
triggerName, groupName);
for (int i = 0; i < listeners.length; ++i) {
trigger.addTriggerListener(listeners[i]);
}
return trigger;
} catch (Exception e) {
throw new JobPersistenceException("Couldn't retrieve trigger: "
+ e.getMessage(), e);
}
}
public int getTriggerState(Connection conn, SchedulingContext ctxt,
String triggerName, String groupName)
throws JobPersistenceException {
try {
String ts = getDelegate().selectTriggerState(conn, triggerName,
groupName);
if (ts == null) return Trigger.STATE_NONE;
if (ts.equals(STATE_DELETED)) return Trigger.STATE_NONE;
if (ts.equals(STATE_COMPLETE)) return Trigger.STATE_COMPLETE;
if (ts.equals(STATE_PAUSED)) return Trigger.STATE_PAUSED;
if (ts.equals(STATE_PAUSED_BLOCKED)) return Trigger.STATE_PAUSED;
if (ts.equals(STATE_ERROR)) return Trigger.STATE_ERROR;
if (ts.equals(STATE_BLOCKED)) return Trigger.STATE_BLOCKED;
return Trigger.STATE_NORMAL;
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't determine state of trigger (" + groupName + "."
+ triggerName + "): " + e.getMessage(), e);
}
}
protected void storeCalendar(Connection conn, SchedulingContext ctxt,
String calName, Calendar calendar, boolean replaceExisting, boolean updateTriggers)
throws ObjectAlreadyExistsException, JobPersistenceException {
try {
boolean existingCal = calendarExists(conn, calName);
if (existingCal && !replaceExisting) { throw new ObjectAlreadyExistsException(
"Calendar with name '" + calName + "' already exists."); }
if (existingCal) {
if (getDelegate().updateCalendar(conn, calName, calendar) < 1) { throw new JobPersistenceException(
"Couldn't store calendar. Update failed."); }
if(updateTriggers) {
Trigger[] trigs = getDelegate().selectTriggersForCalendar(conn, calName);
for(int i=0; i < trigs.length; i++) {
trigs[i].updateWithNewCalendar(calendar, getMisfireThreshold());
storeTrigger(conn, ctxt, trigs[i], null, true, STATE_WAITING, false, false);
}
}
} else {
if (getDelegate().insertCalendar(conn, calName, calendar) < 1) { throw new JobPersistenceException(
"Couldn't store calendar. Insert failed."); }
}
calendarCache.put(calName, calendar); // lazy-cache
} catch (IOException e) {
throw new JobPersistenceException(
"Couldn't store calendar because the BLOB couldn't be serialized: "
+ e.getMessage(), e);
} catch (ClassNotFoundException e) {
throw new JobPersistenceException("Couldn't store calendar: "
+ e.getMessage(), e);
}catch (SQLException e) {
throw new JobPersistenceException("Couldn't store calendar: "
+ e.getMessage(), e);
}
}
protected boolean calendarExists(Connection conn, String calName)
throws JobPersistenceException {
try {
return getDelegate().calendarExists(conn, calName);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't determine calendar existence (" + calName + "): "
+ e.getMessage(), e);
}
}
protected boolean removeCalendar(Connection conn, SchedulingContext ctxt,
String calName) throws JobPersistenceException {
try {
if (getDelegate().calendarIsReferenced(conn, calName)) { throw new JobPersistenceException(
"Calender cannot be removed if it referenced by a trigger!"); }
calendarCache.remove(calName);
return (getDelegate().deleteCalendar(conn, calName) > 0);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't remove calendar: "
+ e.getMessage(), e);
}
}
protected Calendar retrieveCalendar(Connection conn,
SchedulingContext ctxt, String calName)
throws JobPersistenceException {
// all calendars are persistent, but we lazy-cache them during run
// time...
Calendar cal = (Calendar) calendarCache.get(calName);
if (cal != null) return cal;
try {
cal = getDelegate().selectCalendar(conn, calName);
calendarCache.put(calName, cal); // lazy-cache...
return cal;
} catch (ClassNotFoundException e) {
throw new JobPersistenceException(
"Couldn't retrieve calendar because a required class was not found: "
+ e.getMessage(), e);
} catch (IOException e) {
throw new JobPersistenceException(
"Couldn't retrieve calendar because the BLOB couldn't be deserialized: "
+ e.getMessage(), e);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't retrieve calendar: "
+ e.getMessage(), e);
}
}
protected int getNumberOfJobs(Connection conn, SchedulingContext ctxt)
throws JobPersistenceException {
try {
return getDelegate().selectNumJobs(conn);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't obtain number of jobs: " + e.getMessage(), e);
}
}
protected int getNumberOfTriggers(Connection conn, SchedulingContext ctxt)
throws JobPersistenceException {
try {
return getDelegate().selectNumTriggers(conn);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't obtain number of triggers: " + e.getMessage(), e);
}
}
protected int getNumberOfCalendars(Connection conn, SchedulingContext ctxt)
throws JobPersistenceException {
try {
return getDelegate().selectNumCalendars(conn);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't obtain number of calendars: " + e.getMessage(), e);
}
}
protected String[] getJobNames(Connection conn, SchedulingContext ctxt,
String groupName) throws JobPersistenceException {
String[] jobNames = null;
try {
jobNames = getDelegate().selectJobsInGroup(conn, groupName);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't obtain job names: "
+ e.getMessage(), e);
}
return jobNames;
}
protected String[] getTriggerNames(Connection conn, SchedulingContext ctxt,
String groupName) throws JobPersistenceException {
String[] trigNames = null;
try {
trigNames = getDelegate().selectTriggersInGroup(conn, groupName);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't obtain trigger names: "
+ e.getMessage(), e);
}
return trigNames;
}
protected String[] getJobGroupNames(Connection conn, SchedulingContext ctxt)
throws JobPersistenceException {
String[] groupNames = null;
try {
groupNames = getDelegate().selectJobGroups(conn);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't obtain job groups: "
+ e.getMessage(), e);
}
return groupNames;
}
protected String[] getTriggerGroupNames(Connection conn,
SchedulingContext ctxt) throws JobPersistenceException {
String[] groupNames = null;
try {
groupNames = getDelegate().selectTriggerGroups(conn);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't obtain trigger groups: " + e.getMessage(), e);
}
return groupNames;
}
protected String[] getCalendarNames(Connection conn, SchedulingContext ctxt)
throws JobPersistenceException {
try {
return getDelegate().selectCalendars(conn);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't obtain trigger groups: " + e.getMessage(), e);
}
}
protected Trigger[] getTriggersForJob(Connection conn,
SchedulingContext ctxt, String jobName, String groupName)
throws JobPersistenceException {
Trigger[] array = null;
try {
array = getDelegate()
.selectTriggersForJob(conn, jobName, groupName);
} catch (Exception e) {
throw new JobPersistenceException(
"Couldn't obtain triggers for job: " + e.getMessage(), e);
}
return array;
}
/**
*
* Pause the {@link org.quartz.Trigger} with the given name.
*
*
* @see #resumeTrigger(Connection, SchedulingContext, String, String)
*/
public void pauseTrigger(Connection conn, SchedulingContext ctxt,
String triggerName, String groupName)
throws JobPersistenceException {
try {
String oldState = getDelegate().selectTriggerState(conn,
triggerName, groupName);
if (oldState.equals(STATE_WAITING)
|| oldState.equals(STATE_ACQUIRED)) {
getDelegate().updateTriggerState(conn, triggerName,
groupName, STATE_PAUSED);
}
else if (oldState.equals(STATE_BLOCKED)) {
getDelegate().updateTriggerState(conn, triggerName,
groupName, STATE_PAUSED_BLOCKED);
}
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't pause trigger '"
+ groupName + "." + triggerName + "': " + e.getMessage(), e);
}
}
protected String getStatusForResumedTrigger(Connection conn,
SchedulingContext ctxt, TriggerStatus status)
throws JobPersistenceException {
try {
String newState = STATE_WAITING;
List lst = getDelegate()
.selectFiredTriggerRecordsByJob(conn,
status.getJobKey().getName(),
status.getJobKey().getGroup());
if (lst.size() > 0) {
FiredTriggerRecord rec = (FiredTriggerRecord) lst.get(0);
if (rec.isJobIsStateful()) // TODO: worry about
// failed/recovering/volatile job
// states?
newState = STATE_BLOCKED;
}
return newState;
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't determine new state in order to resume trigger '"
+ status.getKey().getGroup() + "."
+ status.getKey().getName() + "': "
+ e.getMessage(), e);
}
}
protected String getNewStatusForTrigger(Connection conn,
SchedulingContext ctxt, String jobName, String groupName)
throws JobPersistenceException {
try {
String newState = STATE_WAITING;
List lst = getDelegate().selectFiredTriggerRecordsByJob(conn,
jobName, groupName);
if (lst.size() > 0) {
FiredTriggerRecord rec = (FiredTriggerRecord) lst.get(0);
if (rec.isJobIsStateful()) // TODO: worry about
// failed/recovering/volatile job
// states?
newState = STATE_BLOCKED;
}
return newState;
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't determine state for new trigger: "
+ e.getMessage(), e);
}
}
/*
* private List findTriggersToBeBlocked(Connection conn, SchedulingContext
* ctxt, String groupName) throws JobPersistenceException {
*
* try { List blockList = new LinkedList();
*
* List affectingJobs =
* getDelegate().selectStatefulJobsOfTriggerGroup(conn, groupName);
*
* Iterator itr = affectingJobs.iterator(); while(itr.hasNext()) { Key
* jobKey = (Key) itr.next();
*
* List lst = getDelegate().selectFiredTriggerRecordsByJob(conn,
* jobKey.getName(), jobKey.getGroup());
*
* This logic is BROKEN...
*
* if(lst.size() > 0) { FiredTriggerRecord rec =
* (FiredTriggerRecord)lst.get(0); if(rec.isJobIsStateful()) // TODO: worry
* about failed/recovering/volatile job states? blockList.add(
* rec.getTriggerKey() ); } }
*
*
* return blockList; } catch (SQLException e) { throw new
* JobPersistenceException ("Couldn't determine states of resumed triggers
* in group '" + groupName + "': " + e.getMessage(), e); } }
*/
/**
*
* Resume (un-pause) the {@link org.quartz.Trigger} with the
* given name.
*
*
*
* If the Trigger missed one or more fire-times, then the
* Trigger's misfire instruction will be applied.
*
*
* @see #pauseTrigger(Connection, SchedulingContext, String, String)
*/
public void resumeTrigger(Connection conn, SchedulingContext ctxt,
String triggerName, String groupName)
throws JobPersistenceException {
try {
TriggerStatus status = getDelegate().selectTriggerStatus(conn,
triggerName, groupName);
if (status == null || status.getNextFireTime() == null) return;
boolean blocked = false;
if(STATE_PAUSED_BLOCKED.equals(status.getStatus()))
blocked = true;
String newState = getStatusForResumedTrigger(conn, ctxt, status);
boolean misfired = false;
if (status.getNextFireTime().before(new Date())) {
misfired = updateMisfiredTrigger(conn, ctxt, triggerName, groupName,
newState, true);
}
if(!misfired) {
if(blocked)
getDelegate().updateTriggerStateFromOtherState(conn,
triggerName, groupName, newState, STATE_PAUSED_BLOCKED);
else
getDelegate().updateTriggerStateFromOtherState(conn,
triggerName, groupName, newState, STATE_PAUSED);
}
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't resume trigger '"
+ groupName + "." + triggerName + "': " + e.getMessage(), e);
}
}
/**
*
* Pause all of the {@link org.quartz.Trigger}s in the
* given group.
*
*
* @see #resumeTriggerGroup(Connection, SchedulingContext, String)
*/
public void pauseTriggerGroup(Connection conn, SchedulingContext ctxt,
String groupName) throws JobPersistenceException {
try {
getDelegate().updateTriggerGroupStateFromOtherStates(
conn, groupName, STATE_PAUSED, STATE_ACQUIRED,
STATE_WAITING, STATE_WAITING);
getDelegate().updateTriggerGroupStateFromOtherState(
conn, groupName, STATE_PAUSED_BLOCKED, STATE_BLOCKED);
if (!getDelegate().isTriggerGroupPaused(conn, groupName)) {
getDelegate().insertPausedTriggerGroup(conn, groupName);
}
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't pause trigger group '"
+ groupName + "': " + e.getMessage(), e);
}
}
/**
*
* Pause all of the {@link org.quartz.Trigger}s in the
* given group.
*
*
* @see #resumeTriggerGroup(Connection, SchedulingContext, String)
*/
public Set getPausedTriggerGroups(Connection conn, SchedulingContext ctxt)
throws JobPersistenceException {
try {
return getDelegate().selectPausedTriggerGroups(conn);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't determine paused trigger groups: " + e.getMessage(), e);
}
}
/**
*
* Resume (un-pause) all of the {@link org.quartz.Trigger}s
* in the given group.
*
*
*
* If any Trigger missed one or more fire-times, then the
* Trigger's misfire instruction will be applied.
*
*
* @see #pauseTriggerGroup(Connection, SchedulingContext, String)
*/
public void resumeTriggerGroup(Connection conn, SchedulingContext ctxt,
String groupName) throws JobPersistenceException {
try {
getDelegate().deletePausedTriggerGroup(conn, groupName);
String[] trigNames = getDelegate().selectTriggersInGroup(conn,
groupName);
for (int i = 0; i < trigNames.length; i++) {
resumeTrigger(conn, ctxt, trigNames[i], groupName);
}
// TODO: find an efficient way to resume triggers (better than the
// above)... logic below is broken because of
// findTriggersToBeBlocked()
/*
* int res =
* getDelegate().updateTriggerGroupStateFromOtherState(conn,
* groupName, STATE_WAITING, STATE_PAUSED);
*
* if(res > 0) {
*
* long misfireTime = System.currentTimeMillis();
* if(getMisfireThreshold() > 0) misfireTime -=
* getMisfireThreshold();
*
* Key[] misfires =
* getDelegate().selectMisfiredTriggersInGroupInState(conn,
* groupName, STATE_WAITING, misfireTime);
*
* List blockedTriggers = findTriggersToBeBlocked(conn, ctxt,
* groupName);
*
* Iterator itr = blockedTriggers.iterator(); while(itr.hasNext()) {
* Key key = (Key)itr.next();
* getDelegate().updateTriggerState(conn, key.getName(),
* key.getGroup(), STATE_BLOCKED); }
*
* for(int i=0; i < misfires.length; i++) { String
* newState = STATE_WAITING;
* if(blockedTriggers.contains(misfires[i])) newState =
* STATE_BLOCKED; updateMisfiredTrigger(conn, ctxt,
* misfires[i].getName(), misfires[i].getGroup(), newState, true); } }
*/
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't pause trigger group '"
+ groupName + "': " + e.getMessage(), e);
}
}
/**
*
* Pause all triggers - equivalent of calling pauseTriggerGroup(group)
* on every group.
*
*
*
* When resumeAll() is called (to un-pause), trigger misfire
* instructions WILL be applied.
*
*
* @see #resumeAll(SchedulingContext)
* @see #pauseTriggerGroup(SchedulingContext, String)
*/
public void pauseAll(Connection conn, SchedulingContext ctxt)
throws JobPersistenceException {
String[] names = getTriggerGroupNames(conn, ctxt);
for (int i = 0; i < names.length; i++) {
pauseTriggerGroup(conn, ctxt, names[i]);
}
try {
if (!getDelegate().isTriggerGroupPaused(conn, ALL_GROUPS_PAUSED)) {
getDelegate().insertPausedTriggerGroup(conn, ALL_GROUPS_PAUSED);
}
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't pause all trigger groups: " + e.getMessage(), e);
}
}
/**
* protected
*
* Resume (un-pause) all triggers - equivalent of calling resumeTriggerGroup(group)
* on every group.
*
*
*
* If any Trigger missed one or more fire-times, then the
* Trigger's misfire instruction will be applied.
*
*
* @see #pauseAll(SchedulingContext)
*/
public void resumeAll(Connection conn, SchedulingContext ctxt)
throws JobPersistenceException {
String[] names = getTriggerGroupNames(conn, ctxt);
for (int i = 0; i < names.length; i++) {
resumeTriggerGroup(conn, ctxt, names[i]);
}
try {
getDelegate().deletePausedTriggerGroup(conn, ALL_GROUPS_PAUSED);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't resume all trigger groups: " + e.getMessage(), e);
}
}
private static long ftrCtr = System.currentTimeMillis();
protected synchronized String getFiredTriggerRecordId() {
return getInstanceId() + ftrCtr++;
}
// TODO: this really ought to return something like a FiredTriggerBundle,
// so that the fireInstanceId doesn't have to be on the trigger...
protected Trigger acquireNextTrigger(Connection conn, SchedulingContext ctxt, long noLaterThan)
throws JobPersistenceException {
Trigger nextTrigger = null;
boolean acquiredOne = false;
do {
try {
getDelegate().updateTriggerStateFromOtherStatesBeforeTime(conn,
STATE_MISFIRED, STATE_WAITING, STATE_WAITING,
getMisfireTime()); // only waiting
long nextFireTime = getDelegate().selectNextFireTime(conn);
if (nextFireTime == 0 || nextFireTime > noLaterThan)
return null;
Key triggerKey = null;
do {
triggerKey = getDelegate().selectTriggerForFireTime(conn,
nextFireTime);
if (null != triggerKey) {
int res = getDelegate()
.updateTriggerStateFromOtherState(conn,
triggerKey.getName(),
triggerKey.getGroup(), STATE_ACQUIRED,
STATE_WAITING);
if (res <= 0) continue;
nextTrigger = retrieveTrigger(conn, ctxt, triggerKey
.getName(), triggerKey.getGroup());
if(nextTrigger == null) continue;
nextTrigger
.setFireInstanceId(getFiredTriggerRecordId());
getDelegate().insertFiredTrigger(conn, nextTrigger,
STATE_ACQUIRED, null);
acquiredOne = true;
}
} while (triggerKey != null && !acquiredOne);
} catch (Exception e) {
throw new JobPersistenceException(
"Couldn't acquire next trigger: " + e.getMessage(), e);
}
} while (!acquiredOne);
return nextTrigger;
}
protected void releaseAcquiredTrigger(Connection conn,
SchedulingContext ctxt, Trigger trigger)
throws JobPersistenceException {
try {
getDelegate().updateTriggerStateFromOtherState(conn,
trigger.getName(), trigger.getGroup(), STATE_WAITING,
STATE_ACQUIRED);
getDelegate().deleteFiredTrigger(conn, trigger.getFireInstanceId());
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't release acquired trigger: " + e.getMessage(), e);
}
}
protected TriggerFiredBundle triggerFired(Connection conn,
SchedulingContext ctxt, Trigger trigger)
throws JobPersistenceException {
JobDetail job = null;
Calendar cal = null;
// Make sure trigger wasn't deleted, paused, or completed...
try { // if trigger was deleted, state will be STATE_DELETED
String state = getDelegate().selectTriggerState(conn,
trigger.getName(), trigger.getGroup());
if (!state.equals(STATE_ACQUIRED)) return null;
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't select trigger state: "
+ e.getMessage(), e);
}
try {
job = retrieveJob(conn, ctxt, trigger.getJobName(), trigger
.getJobGroup());
if (job == null) { return null; }
} catch (JobPersistenceException jpe) {
try {
getLog().error("Error retrieving job, setting trigger state to ERROR.", jpe);
getDelegate().updateTriggerState(conn, trigger.getName(),
trigger.getGroup(), STATE_ERROR);
} catch (SQLException sqle) {
getLog().error("Unable to set trigger state to ERROR.", sqle);
}
throw jpe;
}
if (trigger.getCalendarName() != null) {
cal = retrieveCalendar(conn, ctxt, trigger.getCalendarName());
if (cal == null) { return null; }
}
try {
getDelegate().deleteFiredTrigger(conn, trigger.getFireInstanceId());
getDelegate().insertFiredTrigger(conn, trigger, STATE_EXECUTING,
job);
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't insert fired trigger: "
+ e.getMessage(), e);
}
Date prevFireTime = trigger.getPreviousFireTime();
// call triggered - to update the trigger's next-fire-time state...
trigger.triggered(cal);
String state = STATE_WAITING;
boolean force = true;
if (job.isStateful()) {
state = STATE_BLOCKED;
force = false;
try {
getDelegate().updateTriggerStatesForJobFromOtherState(conn, job.getName(),
job.getGroup(), STATE_BLOCKED, STATE_WAITING);
getDelegate().updateTriggerStatesForJobFromOtherState(conn, job.getName(),
job.getGroup(), STATE_BLOCKED, STATE_ACQUIRED);
getDelegate().updateTriggerStatesForJobFromOtherState(conn, job.getName(),
job.getGroup(), STATE_PAUSED_BLOCKED, STATE_PAUSED);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't update states of blocked triggers: "
+ e.getMessage(), e);
}
}
if (trigger.getNextFireTime() == null) {
state = STATE_COMPLETE;
force = true;
}
storeTrigger(conn, ctxt, trigger, job, true, state, force, false);
job.getJobDataMap().clearDirtyFlag();
return new TriggerFiredBundle(job, trigger, cal, trigger.getGroup()
.equals(Scheduler.DEFAULT_RECOVERY_GROUP), new Date(), trigger
.getPreviousFireTime(), prevFireTime, trigger.getNextFireTime());
}
protected void triggeredJobComplete(Connection conn,
SchedulingContext ctxt, Trigger trigger, JobDetail jobDetail,
int triggerInstCode) throws JobPersistenceException {
try {
if (triggerInstCode == Trigger.INSTRUCTION_DELETE_TRIGGER) {
if(trigger.getNextFireTime() == null) {
// double check for possible reschedule within job
// execution, which would cancel the need to delete...
TriggerStatus stat = getDelegate().selectTriggerStatus(
conn, trigger.getName(), trigger.getGroup());
if(stat != null && stat.getNextFireTime() == null) {
removeTrigger(conn, ctxt, trigger.getName(), trigger.getGroup());
}
}
else{
removeTrigger(conn, ctxt, trigger.getName(), trigger.getGroup());
}
} else if (triggerInstCode == Trigger.INSTRUCTION_SET_TRIGGER_COMPLETE) {
getDelegate().updateTriggerState(conn, trigger.getName(),
trigger.getGroup(), STATE_COMPLETE);
} else if (triggerInstCode == Trigger.INSTRUCTION_SET_TRIGGER_ERROR) {
getLog().info("Trigger " + trigger.getFullName() + " set to ERROR state.");
getDelegate().updateTriggerState(conn, trigger.getName(),
trigger.getGroup(), STATE_ERROR);
} else if (triggerInstCode == Trigger.INSTRUCTION_SET_ALL_JOB_TRIGGERS_COMPLETE) {
getDelegate().updateTriggerStatesForJob(conn,
trigger.getJobName(), trigger.getJobGroup(),
STATE_COMPLETE);
} else if (triggerInstCode == Trigger.INSTRUCTION_SET_ALL_JOB_TRIGGERS_ERROR) {
getLog().info("All triggers of Job " +
trigger.getFullJobName() + " set to ERROR state.");
getDelegate().updateTriggerStatesForJob(conn,
trigger.getJobName(), trigger.getJobGroup(),
STATE_ERROR);
}
if (jobDetail.isStateful()) {
getDelegate().updateTriggerStatesForJobFromOtherState(conn,
jobDetail.getName(), jobDetail.getGroup(),
STATE_WAITING, STATE_BLOCKED);
getDelegate().updateTriggerStatesForJobFromOtherState(conn,
jobDetail.getName(), jobDetail.getGroup(),
STATE_PAUSED, STATE_PAUSED_BLOCKED);
try {
if (jobDetail.getJobDataMap().isDirty()) {
getDelegate().updateJobData(conn, jobDetail);
}
} catch (IOException e) {
throw new JobPersistenceException(
"Couldn't serialize job data: " + e.getMessage(), e);
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't update job data: " + e.getMessage(), e);
}
}
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't update trigger state(s): " + e.getMessage(), e);
}
try {
getDelegate().deleteFiredTrigger(conn, trigger.getFireInstanceId());
} catch (SQLException e) {
throw new JobPersistenceException("Couldn't delete fired trigger: "
+ e.getMessage(), e);
}
}
/**
*
* Get the driver delegate for DB operations.
*
*/
protected DriverDelegate getDelegate() throws NoSuchDelegateException {
if (null == delegate) {
try {
if(delegateClassName != null)
delegateClass =
getClassLoadHelper().loadClass(delegateClassName);
Constructor ctor = null;
Object[] ctorParams = null;
if (canUseProperties()) {
Class[] ctorParamTypes = new Class[]{Log.class,
String.class, String.class, Boolean.class};
ctor = delegateClass.getConstructor(ctorParamTypes);
ctorParams = new Object[]{getLog(), tablePrefix,
instanceId, new Boolean(canUseProperties())};
} else {
Class[] ctorParamTypes = new Class[]{Log.class,
String.class, String.class};
ctor = delegateClass.getConstructor(ctorParamTypes);
ctorParams = new Object[]{getLog(), tablePrefix, instanceId};
}
delegate = (DriverDelegate) ctor.newInstance(ctorParams);
} catch (NoSuchMethodException e) {
throw new NoSuchDelegateException(
"Couldn't find delegate constructor: " + e.getMessage());
} catch (InstantiationException e) {
throw new NoSuchDelegateException("Couldn't create delegate: "
+ e.getMessage());
} catch (IllegalAccessException e) {
throw new NoSuchDelegateException("Couldn't create delegate: "
+ e.getMessage());
} catch (InvocationTargetException e) {
throw new NoSuchDelegateException("Couldn't create delegate: "
+ e.getMessage());
} catch (ClassNotFoundException e) {
throw new NoSuchDelegateException("Couldn't load delegate class: "
+ e.getMessage());
}
}
return delegate;
}
protected Semaphore getLockHandler() {
return lockHandler;
}
//---------------------------------------------------------------------------
// Management methods
//---------------------------------------------------------------------------
protected abstract boolean doRecoverMisfires()
throws JobPersistenceException;
protected void signalSchedulingChange() {
signaler.signalSchedulingChange();
}
//---------------------------------------------------------------------------
// Cluster management methods
//---------------------------------------------------------------------------
protected abstract boolean doCheckin() throws JobPersistenceException;
protected boolean firstCheckIn = true;
protected long lastCheckin = System.currentTimeMillis();
/**
* Get a list of all scheduler instances in the cluster that may have failed.
* This includes this scheduler if it has no recoverer and is checking for the
* first time.
*/
protected List findFailedInstances(Connection conn)
throws JobPersistenceException {
List failedInstances = new LinkedList();
boolean selfFailed = false;
long timeNow = System.currentTimeMillis();
try {
List states = getDelegate().selectSchedulerStateRecords(conn, null);
// build map of states by Id...
HashMap statesById = new HashMap();
Iterator itr = states.iterator();
while (itr.hasNext()) {
SchedulerStateRecord rec = (SchedulerStateRecord) itr.next();
statesById.put(rec.getSchedulerInstanceId(), rec);
}
itr = states.iterator();
while (itr.hasNext()) {
SchedulerStateRecord rec = (SchedulerStateRecord) itr.next();
// find own record...
if (rec.getSchedulerInstanceId().equals(getInstanceId())) {
if (firstCheckIn) {
if (rec.getRecoverer() == null) {
failedInstances.add(rec);
} else {
// make sure the recoverer hasn't died itself!
SchedulerStateRecord recOrec = (SchedulerStateRecord)statesById.get(rec.getRecoverer());
long failedIfAfter = (recOrec == null) ? timeNow : calcFailedIfAfter(recOrec);
// if it has failed, then let's become the recoverer
if( failedIfAfter < timeNow || recOrec == null) {
failedInstances.add(rec);
}
}
}
// TODO: revisit when handle self-failed-out impled (see TODO in clusterCheckIn() below)
// else if (rec.getRecoverer() != null) {
// selfFailed = true;
// }
} else {
// find failed instances...
long failedIfAfter = calcFailedIfAfter(rec);
if (rec.getRecoverer() == null) {
if (failedIfAfter < timeNow) {
failedInstances.add(rec);
}
} else {
// make sure the recoverer hasn't died itself!
SchedulerStateRecord recOrec = (SchedulerStateRecord)statesById.get(rec.getRecoverer());
failedIfAfter = (recOrec == null) ? timeNow : calcFailedIfAfter(recOrec);
// if it has failed, then let's become the recoverer
if (failedIfAfter < timeNow || recOrec == null) {
failedInstances.add(rec);
}
}
}
}
} catch (Exception e) {
lastCheckin = System.currentTimeMillis();
throw new JobPersistenceException("Failure identifying failed instances when checking-in: "
+ e.getMessage(), e);
}
return failedInstances;
}
protected long calcFailedIfAfter(SchedulerStateRecord rec) {
return rec.getCheckinTimestamp() +
Math.max(rec.getCheckinInterval(),
(System.currentTimeMillis() - lastCheckin)) +
7500L;
}
protected List clusterCheckIn(Connection conn)
throws JobPersistenceException {
List failedInstances = findFailedInstances(conn);
try {
// TODO: handle self-failed-out
// check in...
lastCheckin = System.currentTimeMillis();
if(getDelegate().updateSchedulerState(conn, getInstanceId(), lastCheckin, null) == 0) {
getDelegate().insertSchedulerState(conn, getInstanceId(),
lastCheckin, getClusterCheckinInterval(), null);
}
} catch (Exception e) {
throw new JobPersistenceException("Failure updating scheduler state when checking-in: "
+ e.getMessage(), e);
}
return failedInstances;
}
protected void clusterRecover(Connection conn, List failedInstances)
throws JobPersistenceException {
if (failedInstances.size() > 0) {
long recoverIds = System.currentTimeMillis();
logWarnIfNonZero(failedInstances.size(),
"ClusterManager: detected " + failedInstances.size()
+ " failed or restarted instances.");
try {
Iterator itr = failedInstances.iterator();
while (itr.hasNext()) {
SchedulerStateRecord rec = (SchedulerStateRecord) itr
.next();
getLog().info(
"ClusterManager: Scanning for instance \""
+ rec.getSchedulerInstanceId()
+ "\"'s failed in-progress jobs.");
List firedTriggerRecs = getDelegate()
.selectInstancesFiredTriggerRecords(conn,
rec.getSchedulerInstanceId());
int acquiredCount = 0;
int recoveredCount = 0;
int otherCount = 0;
Iterator ftItr = firedTriggerRecs.iterator();
while (ftItr.hasNext()) {
FiredTriggerRecord ftRec = (FiredTriggerRecord) ftItr
.next();
Key tKey = ftRec.getTriggerKey();
Key jKey = ftRec.getJobKey();
// release blocked triggers..
if (ftRec.getFireInstanceState().equals(STATE_BLOCKED)) {
getDelegate()
.updateTriggerStatesForJobFromOtherState(
conn, jKey.getName(),
jKey.getGroup(), STATE_WAITING,
STATE_BLOCKED);
}
if (ftRec.getFireInstanceState().equals(STATE_PAUSED_BLOCKED)) {
getDelegate()
.updateTriggerStatesForJobFromOtherState(
conn, jKey.getName(),
jKey.getGroup(), STATE_PAUSED,
STATE_PAUSED_BLOCKED);
}
// release acquired triggers..
if (ftRec.getFireInstanceState().equals(STATE_ACQUIRED)) {
getDelegate().updateTriggerStateFromOtherState(
conn, tKey.getName(), tKey.getGroup(),
STATE_WAITING, STATE_ACQUIRED);
acquiredCount++;
}// handle jobs marked for recovery that were not fully
// executed..
else if (ftRec.isJobRequestsRecovery()) {
if (jobExists(conn, jKey.getName(), jKey.getGroup())) {
SimpleTrigger rcvryTrig = new SimpleTrigger(
"recover_"
+ rec.getSchedulerInstanceId()
+ "_"
+ String.valueOf(recoverIds++),
Scheduler.DEFAULT_RECOVERY_GROUP,
new Date(ftRec.getFireTimestamp()));
rcvryTrig.setJobName(jKey.getName());
rcvryTrig.setJobGroup(jKey.getGroup());
rcvryTrig
.setMisfireInstruction(SimpleTrigger.MISFIRE_INSTRUCTION_FIRE_NOW);
JobDataMap jd = getDelegate().selectTriggerJobDataMap(conn, tKey.getName(), tKey.getGroup());
jd.put("QRTZ_FAILED_JOB_ORIG_TRIGGER_NAME", tKey.getName());
jd.put("QRTZ_FAILED_JOB_ORIG_TRIGGER_GROUP", tKey.getGroup());
jd.put("QRTZ_FAILED_JOB_ORIG_TRIGGER_FIRETIME_IN_MILLISECONDS_AS_STRING", String.valueOf(ftRec.getFireTimestamp()));
rcvryTrig.setJobDataMap(jd);
rcvryTrig.computeFirstFireTime(null);
storeTrigger(conn, null, rcvryTrig, null, false,
STATE_WAITING, false, true);
recoveredCount++;
} else {
getLog()
.warn(
"ClusterManager: failed job '"
+ jKey
+ "' no longer exists, cannot schedule recovery.");
otherCount++;
}
} else {
otherCount++;
}
// free up stateful job's triggers
if (ftRec.isJobIsStateful()) {
getDelegate()
.updateTriggerStatesForJobFromOtherState(
conn, jKey.getName(),
jKey.getGroup(), STATE_WAITING,
STATE_BLOCKED);
getDelegate()
.updateTriggerStatesForJobFromOtherState(
conn, jKey.getName(),
jKey.getGroup(), STATE_PAUSED,
STATE_PAUSED_BLOCKED);
}
}
getDelegate().deleteFiredTriggers(conn,
rec.getSchedulerInstanceId());
logWarnIfNonZero(acquiredCount,
"ClusterManager: ......Freed " + acquiredCount
+ " acquired trigger(s).");
logWarnIfNonZero(recoveredCount,
"ClusterManager: ......Scheduled " + recoveredCount
+ " recoverable job(s) for recovery.");
logWarnIfNonZero(otherCount,
"ClusterManager: ......Cleaned-up " + otherCount
+ " other failed job(s).");
getDelegate().deleteSchedulerState(conn,
rec.getSchedulerInstanceId());
// update record to show that recovery was handled
if (rec.getSchedulerInstanceId().equals(getInstanceId())) {
getDelegate().insertSchedulerState(conn,
rec.getSchedulerInstanceId(), System.currentTimeMillis(),
rec.getCheckinInterval(), null);
}
}
} catch (Exception e) {
throw new JobPersistenceException("Failure recovering jobs: "
+ e.getMessage(), e);
}
}
}
protected void logWarnIfNonZero(int val, String warning) {
if (val > 0) getLog().info(warning);
else
getLog().debug(warning);
}
/**
* Closes the supplied connection
*
* @param conn (Optional)
* @throws JobPersistenceException thrown if a SQLException occurs when the
* connection is closed
*/
protected void closeConnection(Connection conn)
throws JobPersistenceException {
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't close jdbc connection. "+e.getMessage(), e);
}
}
}
/**
* Rollback the supplied connection
*
* @param conn (Optional)
* @throws JobPersistenceException thrown if a SQLException occurs when the
* connection is rolled back
*/
protected void rollbackConnection(Connection conn)
throws JobPersistenceException {
if (conn != null) {
try {
conn.rollback();
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't rollback jdbc connection. "+e.getMessage(), e);
}
}
}
/**
* Commit the supplied connection
*
* @param conn (Optional)
* @throws JobPersistenceException thrown if a SQLException occurs when the
* connection is committed
*/
protected void commitConnection(Connection conn)
throws JobPersistenceException {
if (conn != null) {
try {
conn.commit();
} catch (SQLException e) {
throw new JobPersistenceException(
"Couldn't commit jdbc connection. "+e.getMessage(), e);
}
}
}
/////////////////////////////////////////////////////////////////////////////
//
// ClusterManager Thread
//
/////////////////////////////////////////////////////////////////////////////
class ClusterManager extends Thread {
private boolean shutdown = false;
private JobStoreSupport js;
private int numFails = 0;
ClusterManager(JobStoreSupport js) {
this.js = js;
this.setPriority(Thread.NORM_PRIORITY + 2);
this.setName("QuartzScheduler_" + instanceName + "-" + instanceId + "_ClusterManager");
}
public void initialize() {
this.manage();
this.start();
}
public void shutdown() {
shutdown = true;
this.interrupt();
}
private boolean manage() {
boolean res = false;
try {
res = js.doCheckin();
numFails = 0;
getLog().debug("ClusterManager: Check-in complete.");
} catch (Exception e) {
if(numFails % 4 == 0)
getLog().error(
"ClusterManager: Error managing cluster: "
+ e.getMessage(), e);
numFails++;
}
return res;
}
public void run() {
while (!shutdown) {
if (!shutdown) {
long timeToSleep = getClusterCheckinInterval();
long transpiredTime = (System.currentTimeMillis() - lastCheckin);
timeToSleep = timeToSleep - transpiredTime;
if (timeToSleep <= 0) timeToSleep = 100L;
if(numFails > 0) timeToSleep = Math.max(getDbRetryInterval(), timeToSleep);
try {
Thread.sleep(timeToSleep);
} catch (Exception ignore) {
}
}
if (!shutdown && this.manage()) signalSchedulingChange();
}//while !shutdown
}
}
/////////////////////////////////////////////////////////////////////////////
//
// MisfireHandler Thread
//
/////////////////////////////////////////////////////////////////////////////
class MisfireHandler extends Thread {
private boolean shutdown = false;
private JobStoreSupport js;
private int numFails = 0;
MisfireHandler(JobStoreSupport js) {
this.js = js;
this.setName("QuartzScheduler_" + instanceName + "-" + instanceId + "_MisfireHandler");
}
public void initialize() {
//this.manage();
this.start();
}
public void shutdown() {
shutdown = true;
this.interrupt();
}
private boolean manage() {
try {
getLog().debug("MisfireHandler: scanning for misfires...");
boolean res = js.doRecoverMisfires();
numFails = 0;
return res;
} catch (Exception e) {
if(numFails % 4 == 0)
getLog().error(
"MisfireHandler: Error handling misfires: "
+ e.getMessage(), e);
numFails++;
}
return false;
}
public void run() {
while (!shutdown) {
long sTime = System.currentTimeMillis();
boolean moreToDo = this.manage();
if (lastRecoverCount > 0) signalSchedulingChange();
long spanTime = System.currentTimeMillis() - sTime;
if (!shutdown && !moreToDo) {
long timeToSleep = getMisfireThreshold() - spanTime;
if (timeToSleep <= 0) timeToSleep = 50L;
if(numFails > 0) timeToSleep = Math.max(getDbRetryInterval(), timeToSleep);
if (timeToSleep > 0) try {
Thread.sleep(timeToSleep);
} catch (Exception ignore) {
}
}
else if(moreToDo) { // short pause to help balance threads...
try {
Thread.sleep(50);
} catch (Exception ignore) {
}
}
}//while !shutdown
}
}
}
// EOF