org.quartz.xml.XMLSchedulingDataProcessor Maven / Gradle / Ivy
/*
* Copyright 2001-2010 Terracotta, Inc.
*
* 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.quartz.xml;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;
import javax.xml.XMLConstants;
import javax.xml.namespace.NamespaceContext;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathException;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.quartz.CronTrigger;
import org.quartz.JobDetail;
import org.quartz.ObjectAlreadyExistsException;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SimpleTrigger;
import org.quartz.Trigger;
import org.quartz.spi.ClassLoadHelper;
import org.quartz.utils.Key;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
/**
* Parses an XML file that declares Jobs and their schedules (Triggers), and processes the related data.
*
* The xml document must conform to the format defined in
* "job_scheduling_data_1_8.xsd"
*
* The same instance can be used again and again, however a single instance is not thread-safe.
*
* @author James House
* @author Past contributions from Chris Bonham
* @author Past contributions from pl47ypus
*
* @since Quartz 1.8
*/
public class XMLSchedulingDataProcessor implements ErrorHandler {
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Constants.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
public static final String QUARTZ_NS = "http://www.quartz-scheduler.org/xml/JobSchedulingData";
public static final String QUARTZ_SCHEMA_WEB_URL = "http://www.quartz-scheduler.org/xml/job_scheduling_data_1_8.xsd";
public static final String QUARTZ_XSD_PATH_IN_JAR = "org/quartz/xml/job_scheduling_data_1_8.xsd";
public static final String QUARTZ_XML_DEFAULT_FILE_NAME = "quartz_data.xml";
public static final String QUARTZ_SYSTEM_ID_JAR_PREFIX = "jar:";
/**
* XML Schema dateTime datatype format.
*
* See
* http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/#dateTime
*/
protected static final String XSD_DATE_FORMAT = "yyyy-MM-dd'T'hh:mm:ss";
protected static final SimpleDateFormat dateFormat = new SimpleDateFormat(XSD_DATE_FORMAT);
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Data members.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
// pre-processing commands
protected List jobGroupsToDelete = new LinkedList();
protected List triggerGroupsToDelete = new LinkedList();
protected List jobsToDelete = new LinkedList();
protected List triggersToDelete = new LinkedList();
// scheduling commands
protected List loadedJobs = new LinkedList();
protected List loadedTriggers = new LinkedList();
// directives
private boolean overWriteExistingData = true;
private boolean ignoreDuplicates = false;
protected Collection validationExceptions = new ArrayList();
protected ClassLoadHelper classLoadHelper;
protected List jobGroupsToNeverDelete = new LinkedList();
protected List triggerGroupsToNeverDelete = new LinkedList();
private DocumentBuilder docBuilder = null;
private XPath xpath = null;
private final Logger log = LoggerFactory.getLogger(getClass());
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Constructors.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
/**
* Constructor for JobSchedulingDataLoader.
*
* @param clh class-loader helper to share with digester.
* @throws ParserConfigurationException if the XML parser cannot be configured as needed.
*/
public XMLSchedulingDataProcessor(ClassLoadHelper clh) throws ParserConfigurationException {
this.classLoadHelper = clh;
initDocumentParser();
}
/**
* Initializes the XML parser.
* @throws ParserConfigurationException
*/
protected void initDocumentParser() throws ParserConfigurationException {
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
docBuilderFactory.setNamespaceAware(true);
docBuilderFactory.setValidating(true);
docBuilderFactory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage", "http://www.w3.org/2001/XMLSchema");
docBuilderFactory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaSource", resolveSchemaSource());
docBuilder = docBuilderFactory.newDocumentBuilder();
docBuilder.setErrorHandler(this);
NamespaceContext nsContext = new NamespaceContext()
{
public String getNamespaceURI(String prefix)
{
if (prefix == null)
throw new IllegalArgumentException("Null prefix");
if (XMLConstants.XML_NS_PREFIX.equals(prefix))
return XMLConstants.XML_NS_URI;
if (XMLConstants.XMLNS_ATTRIBUTE.equals(prefix))
return XMLConstants.XMLNS_ATTRIBUTE_NS_URI;
if ("q".equals(prefix))
return QUARTZ_NS;
return XMLConstants.NULL_NS_URI;
}
public Iterator getPrefixes(String namespaceURI)
{
// This method isn't necessary for XPath processing.
throw new UnsupportedOperationException();
}
public String getPrefix(String namespaceURI)
{
// This method isn't necessary for XPath processing.
throw new UnsupportedOperationException();
}
};
xpath = XPathFactory.newInstance().newXPath();
xpath.setNamespaceContext(nsContext);
}
protected Object resolveSchemaSource() {
InputSource inputSource = null;
InputStream is = null;
URL url = null;
try {
is = classLoadHelper.getResourceAsStream(QUARTZ_XSD_PATH_IN_JAR);
} finally {
if (is != null) {
inputSource = new InputSource(is);
inputSource.setSystemId(QUARTZ_SCHEMA_WEB_URL);
log.debug("Utilizing schema packaged in local quartz distribution jar.");
}
else {
log.info("Unable to load local schema packaged in quartz distribution jar. Utilizing schema online at " + QUARTZ_SCHEMA_WEB_URL);
return QUARTZ_SCHEMA_WEB_URL;
}
}
return inputSource;
}
/**
* Whether the existing scheduling data (with same identifiers) will be
* overwritten.
*
* If false, and IgnoreDuplicates is not false, and jobs or
* triggers with the same names already exist as those in the file, an
* error will occur.
*
* @see #isIgnoreDuplicates()
*/
public boolean isOverWriteExistingData() {
return overWriteExistingData;
}
/**
* Whether the existing scheduling data (with same identifiers) will be
* overwritten.
*
* If false, and IgnoreDuplicates is not false, and jobs or
* triggers with the same names already exist as those in the file, an
* error will occur.
*
* @see #setIgnoreDuplicates(boolean)
*/
protected void setOverWriteExistingData(boolean overWriteExistingData) {
this.overWriteExistingData = overWriteExistingData;
}
/**
* If true (and OverWriteExistingData is false) then any
* job/triggers encountered in this file that have names that already exist
* in the scheduler will be ignored, and no error will be produced.
*
* @see #isOverWriteExistingData()
*/
public boolean isIgnoreDuplicates() {
return ignoreDuplicates;
}
/**
* If true (and OverWriteExistingData is false) then any
* job/triggers encountered in this file that have names that already exist
* in the scheduler will be ignored, and no error will be produced.
*
* @see #setOverWriteExistingData(boolean)
*/
public void setIgnoreDuplicates(boolean ignoreDuplicates) {
this.ignoreDuplicates = ignoreDuplicates;
}
/**
* Add the given group to the list of job groups that will never be
* deleted by this processor, even if a pre-processing-command to
* delete the group is encountered.
*
* @param group
*/
public void addJobGroupToNeverDelete(String group) {
if(group != null)
jobGroupsToNeverDelete.add(group);
}
/**
* Remove the given group to the list of job groups that will never be
* deleted by this processor, even if a pre-processing-command to
* delete the group is encountered.
*
* @param group
*/
public boolean removeJobGroupToNeverDelete(String group) {
if(group != null)
return jobGroupsToNeverDelete.remove(group);
return false;
}
/**
* Get the (unmodifiable) list of job groups that will never be
* deleted by this processor, even if a pre-processing-command to
* delete the group is encountered.
*
* @param group
*/
public List getJobGroupsToNeverDelete() {
return Collections.unmodifiableList(jobGroupsToDelete);
}
/**
* Add the given group to the list of trigger groups that will never be
* deleted by this processor, even if a pre-processing-command to
* delete the group is encountered.
*
* @param group
*/
public void addTriggerGroupToNeverDelete(String group) {
if(group != null)
triggerGroupsToNeverDelete.add(group);
}
/**
* Remove the given group to the list of trigger groups that will never be
* deleted by this processor, even if a pre-processing-command to
* delete the group is encountered.
*
* @param group
*/
public boolean removeTriggerGroupToNeverDelete(String group) {
if(group != null)
return triggerGroupsToNeverDelete.remove(group);
return false;
}
/**
* Get the (unmodifiable) list of trigger groups that will never be
* deleted by this processor, even if a pre-processing-command to
* delete the group is encountered.
*
* @param group
*/
public List getTriggerGroupsToNeverDelete() {
return Collections.unmodifiableList(triggerGroupsToDelete);
}
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Interface.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
/**
* Process the xml file in the default location (a file named
* "quartz_jobs.xml" in the current working directory).
*
*/
protected void processFile() throws Exception {
processFile(QUARTZ_XML_DEFAULT_FILE_NAME);
}
/**
* Process the xml file named fileName.
*
* @param fileName
* meta data file name.
*/
protected void processFile(String fileName) throws Exception {
processFile(fileName, getSystemIdForFileName(fileName));
}
/**
* For the given fileName, attempt to expand it to its full path
* for use as a system id.
*
* @see #getURL(String)
* @see #processFile()
* @see #processFile(String)
* @see #processFileAndScheduleJobs(Scheduler, boolean)
* @see #processFileAndScheduleJobs(String, Scheduler, boolean)
*/
protected String getSystemIdForFileName(String fileName) {
InputStream fileInputStream = null;
try {
String urlPath = null;
File file = new File(fileName); // files in filesystem
if (!file.exists()) {
URL url = getURL(fileName);
if (url != null) {
try {
urlPath = URLDecoder.decode(url.getPath(), "UTF-8");
} catch (UnsupportedEncodingException e) {
log.warn("Unable to decode file path URL", e);
}
try {
if(url != null)
fileInputStream = url.openStream();
} catch (IOException ignore) {
}
}
} else {
try {
fileInputStream = new FileInputStream(file);
}catch (FileNotFoundException ignore) {
}
}
if (fileInputStream == null) {
log.debug("Unable to resolve '" + fileName + "' to full path, so using it as is for system id.");
return fileName;
} else {
return (urlPath != null) ? urlPath : file.getAbsolutePath();
}
} finally {
try {
if (fileInputStream != null) {
fileInputStream.close();
}
} catch (IOException ioe) {
log.warn("Error closing jobs file: " + fileName, ioe);
}
}
}
/**
* Returns an URL from the fileName as a resource.
*
* @param fileName
* file name.
* @return an URL from the fileName as a resource.
*/
protected URL getURL(String fileName) {
return classLoadHelper.getResource(fileName);
}
protected void prepForProcessing()
{
clearValidationExceptions();
setOverWriteExistingData(true);
setIgnoreDuplicates(false);
jobGroupsToDelete.clear();
jobsToDelete.clear();
triggerGroupsToDelete.clear();
triggersToDelete.clear();
loadedJobs.clear();
loadedTriggers.clear();
}
/**
* Process the xmlfile named fileName with the given system
* ID.
*
* @param fileName
* meta data file name.
* @param systemId
* system ID.
*/
protected void processFile(String fileName, String systemId)
throws ValidationException, ParserConfigurationException,
SAXException, IOException, SchedulerException,
ClassNotFoundException, ParseException, XPathException {
prepForProcessing();
log.info("Parsing XML file: " + fileName +
" with systemId: " + systemId);
InputSource is = new InputSource(getInputStream(fileName));
is.setSystemId(systemId);
process(is);
maybeThrowValidationException();
}
/**
* Process the xmlfile named fileName with the given system
* ID.
*
* @param stream
* an input stream containing the xml content.
* @param systemId
* system ID.
*/
public void processStreamAndScheduleJobs(InputStream stream, String systemId, Scheduler sched)
throws ValidationException, ParserConfigurationException,
SAXException, XPathException, IOException, SchedulerException,
ClassNotFoundException, ParseException {
prepForProcessing();
log.info("Parsing XML from stream with systemId: " + systemId);
InputSource is = new InputSource(stream);
is.setSystemId(systemId);
process(is);
executePreProcessCommands(sched);
scheduleJobs(sched);
maybeThrowValidationException();
}
protected void process(InputSource is) throws SAXException, IOException, ParseException, XPathException, ClassNotFoundException {
// load the document
Document document = docBuilder.parse(is);
//
// Extract pre-processing commands
//
NodeList deleteJobGroupNodes = (NodeList) xpath.evaluate(
"/q:job-scheduling-data/q:pre-processing-commands/q:delete-jobs-in-group",
document, XPathConstants.NODESET);
log.debug("Found " + deleteJobGroupNodes.getLength() + " delete job group commands.");
for (int i = 0; i < deleteJobGroupNodes.getLength(); i++) {
Node node = deleteJobGroupNodes.item(i);
String t = node.getTextContent();
if(t == null || (t = t.trim()).length() == 0)
continue;
jobGroupsToDelete.add(t);
}
NodeList deleteTriggerGroupNodes = (NodeList) xpath.evaluate(
"/q:job-scheduling-data/q:pre-processing-commands/q:delete-triggers-in-group",
document, XPathConstants.NODESET);
log.debug("Found " + deleteTriggerGroupNodes.getLength() + " delete trigger group commands.");
for (int i = 0; i < deleteTriggerGroupNodes.getLength(); i++) {
Node node = deleteTriggerGroupNodes.item(i);
String t = node.getTextContent();
if(t == null || (t = t.trim()).length() == 0)
continue;
triggerGroupsToDelete.add(t);
}
NodeList deleteJobNodes = (NodeList) xpath.evaluate(
"/q:job-scheduling-data/q:pre-processing-commands/q:delete-job",
document, XPathConstants.NODESET);
log.debug("Found " + deleteJobNodes.getLength() + " delete job commands.");
for (int i = 0; i < deleteJobNodes.getLength(); i++) {
Node node = deleteJobNodes.item(i);
String name = getTrimmedToNullString(xpath, "q:name", node);
String group = getTrimmedToNullString(xpath, "q:group", node);
if(name == null)
throw new ParseException("Encountered a 'delete-job' command without a name specified.", -1);
jobsToDelete.add(new Key(name, group));
}
NodeList deleteTriggerNodes = (NodeList) xpath.evaluate(
"/q:job-scheduling-data/q:pre-processing-commands/q:delete-trigger",
document, XPathConstants.NODESET);
log.debug("Found " + deleteTriggerNodes.getLength() + " delete trigger commands.");
for (int i = 0; i < deleteTriggerNodes.getLength(); i++) {
Node node = deleteTriggerNodes.item(i);
String name = getTrimmedToNullString(xpath, "q:name", node);
String group = getTrimmedToNullString(xpath, "q:group", node);
if(name == null)
throw new ParseException("Encountered a 'delete-trigger' command without a name specified.", -1);
triggersToDelete.add(new Key(name, group));
}
//
// Extract directives
//
Boolean overWrite = getBoolean(xpath,
"/q:job-scheduling-data/q:processing-directives/q:overwrite-existing-data", document);
if(overWrite == null) {
log.debug("Directive 'overwrite-existing-data' not specified, defaulting to " + isOverWriteExistingData());
}
else {
log.debug("Directive 'overwrite-existing-data' specified as: " + overWrite);
setOverWriteExistingData(overWrite);
}
Boolean ignoreDupes = getBoolean(xpath,
"/q:job-scheduling-data/q:processing-directives/q:ignore-duplicates", document);
if(ignoreDupes == null) {
log.debug("Directive 'ignore-duplicates' not specified, defaulting to " + isIgnoreDuplicates());
}
else {
log.debug("Directive 'ignore-duplicates' specified as: " + ignoreDupes);
setIgnoreDuplicates(ignoreDupes);
}
//
// Extract Job definitions...
//
NodeList jobNodes = (NodeList) xpath.evaluate("/q:job-scheduling-data/q:schedule/q:job",
document, XPathConstants.NODESET);
log.debug("Found " + jobNodes.getLength() + " job definitions.");
for (int i = 0; i < jobNodes.getLength(); i++) {
Node jobDetailNode = jobNodes.item(i);
String t = null;
String jobName = getTrimmedToNullString(xpath, "q:name", jobDetailNode);
String jobGroup = getTrimmedToNullString(xpath, "q:group", jobDetailNode);
String jobDescription = getTrimmedToNullString(xpath, "q:description", jobDetailNode);
String jobClassName = getTrimmedToNullString(xpath, "q:job-class", jobDetailNode);
t = getTrimmedToNullString(xpath, "q:volatility", jobDetailNode);
boolean jobVolatility = (t != null) && t.equals("true");
t = getTrimmedToNullString(xpath, "q:durability", jobDetailNode);
boolean jobDurability = (t != null) && t.equals("true");
t = getTrimmedToNullString(xpath, "q:recover", jobDetailNode);
boolean jobRecoveryRequested = (t != null) && t.equals("true");
Class jobClass = classLoadHelper.loadClass(jobClassName);
JobDetail jobDetail = new JobDetail(jobName, jobGroup,
jobClass, jobVolatility, jobDurability,
jobRecoveryRequested);
jobDetail.setDescription(jobDescription);
NodeList jobListenerEntries = (NodeList) xpath.evaluate(
"q:job-listener-ref", jobDetailNode,
XPathConstants.NODESET);
for (int j = 0; j < jobListenerEntries.getLength(); j++) {
Node listenerRefNode = jobListenerEntries.item(j);
String ref = listenerRefNode.getTextContent();
if(ref != null && (ref = ref.trim()).length() == 0)
ref = null;
if(ref == null)
continue;
jobDetail.addJobListener(ref);
}
NodeList jobDataEntries = (NodeList) xpath.evaluate(
"q:job-data-map/q:entry", jobDetailNode,
XPathConstants.NODESET);
for (int k = 0; k < jobDataEntries.getLength(); k++) {
Node entryNode = jobDataEntries.item(k);
String key = getTrimmedToNullString(xpath, "q:key", entryNode);
String value = getTrimmedToNullString(xpath, "q:value", entryNode);
jobDetail.getJobDataMap().put(key, value);
}
if(log.isDebugEnabled())
log.debug("Parsed job definition: " + jobDetail);
addJobToSchedule(jobDetail);
}
//
// Extract Trigger definitions...
//
NodeList triggerEntries = (NodeList) xpath.evaluate(
"/q:job-scheduling-data/q:schedule/q:trigger/*", document, XPathConstants.NODESET);
log.debug("Found " + triggerEntries.getLength() + " trigger definitions.");
for (int j = 0; j < triggerEntries.getLength(); j++) {
Node triggerNode = triggerEntries.item(j);
String triggerName = getTrimmedToNullString(xpath, "q:name", triggerNode);
String triggerGroup = getTrimmedToNullString(xpath, "q:group", triggerNode);
String triggerDescription = getTrimmedToNullString(xpath, "q:description", triggerNode);
String triggerMisfireInstructionConst = getTrimmedToNullString(xpath, "q:misfire-instruction", triggerNode);
String triggerCalendarRef = getTrimmedToNullString(xpath, "q:calendar-name", triggerNode);
String triggerJobName = getTrimmedToNullString(xpath, "q:job-name", triggerNode);
String triggerJobGroup = getTrimmedToNullString(xpath, "q:job-group", triggerNode);
String t = getTrimmedToNullString(xpath, "q:volatility", triggerNode);
boolean triggerVolatility = (t != null) && t.equals("true");
String startTimeString = getTrimmedToNullString(xpath, "q:start-time", triggerNode);
String endTimeString = getTrimmedToNullString(xpath, "q:end-time", triggerNode);
Date triggerStartTime = startTimeString == null || startTimeString.length() == 0 ? new Date() : dateFormat.parse(startTimeString);
Date triggerEndTime = endTimeString == null || endTimeString.length() == 0 ? null : dateFormat.parse(endTimeString);
Trigger trigger = null;
if (triggerNode.getNodeName().equals("simple")) {
String repeatCountString = getTrimmedToNullString(xpath, "q:repeat-count", triggerNode);
String repeatIntervalString = getTrimmedToNullString(xpath, "q:repeat-interval", triggerNode);
int repeatCount = repeatCountString == null ? SimpleTrigger.REPEAT_INDEFINITELY : Integer.parseInt(repeatCountString);
long repeatInterval = repeatIntervalString == null ? 0 : Long.parseLong(repeatIntervalString);
trigger = new SimpleTrigger(triggerName, triggerGroup,
triggerJobName, triggerJobGroup,
triggerStartTime, triggerEndTime,
repeatCount, repeatInterval);
} else if (triggerNode.getNodeName().equals("cron")) {
String cronExpression = getTrimmedToNullString(xpath, "q:cron-expression", triggerNode);
String timezoneString = getTrimmedToNullString(xpath, "q:time-zone", triggerNode);
TimeZone tz = timezoneString == null ? null : TimeZone.getTimeZone(timezoneString);
trigger = new CronTrigger(triggerName, triggerGroup,
triggerJobName, triggerJobGroup,
triggerStartTime, triggerEndTime,
cronExpression, tz);
} else {
throw new ParseException("Unknown trigger type: " + triggerNode.getNodeName(), -1);
}
trigger.setVolatility(triggerVolatility);
trigger.setDescription(triggerDescription);
trigger.setCalendarName(triggerCalendarRef);
if (triggerMisfireInstructionConst != null && triggerMisfireInstructionConst.length() != 0) {
Class clazz = trigger.getClass();
java.lang.reflect.Field field;
try {
field = clazz.getField(triggerMisfireInstructionConst);
int misfireInst = field.getInt(trigger);
trigger.setMisfireInstruction(misfireInst);
} catch (Exception e) {
throw new ParseException("Unexpected/Unhandlable Misfire Instruction encountered '" + triggerMisfireInstructionConst + "', for trigger: " + trigger.getFullName(), -1);
}
}
NodeList jobDataEntries = (NodeList) xpath.evaluate(
"q:job-data-map/q:entry", triggerNode,
XPathConstants.NODESET);
for (int k = 0; k < jobDataEntries.getLength(); k++) {
Node entryNode = jobDataEntries.item(k);
String key = getTrimmedToNullString(xpath, "q:key", entryNode);
String value = getTrimmedToNullString(xpath, "q:value", entryNode);
trigger.getJobDataMap().put(key, value);
}
if(log.isDebugEnabled())
log.debug("Parsed trigger definition: " + trigger);
addTriggerToSchedule(trigger);
}
}
protected String getTrimmedToNullString(XPath xpath, String elementName, Node parentNode) throws XPathExpressionException {
String str = (String) xpath.evaluate(elementName,
parentNode, XPathConstants.STRING);
if(str != null)
str = str.trim();
if(str != null && str.length() == 0)
str = null;
return str;
}
protected Boolean getBoolean(XPath xpath, String elementName, Document document) throws XPathExpressionException {
Node directive = (Node) xpath.evaluate(elementName, document, XPathConstants.NODE);
if(directive == null || directive.getTextContent() == null)
return null;
String val = directive.getTextContent();
if(val.equalsIgnoreCase("true") || val.equalsIgnoreCase("yes") || val.equalsIgnoreCase("y"))
return Boolean.TRUE;
return Boolean.FALSE;
}
/**
* Process the xml file in the default location, and schedule all of the
* jobs defined within it.
*
*/
public void processFileAndScheduleJobs(Scheduler sched,
boolean overWriteExistingJobs) throws SchedulerException, Exception {
processFileAndScheduleJobs(QUARTZ_XML_DEFAULT_FILE_NAME, sched);
}
/**
* Process the xml file in the given location, and schedule all of the
* jobs defined within it.
*
* @param fileName
* meta data file name.
*/
public void processFileAndScheduleJobs(String fileName, Scheduler sched) throws Exception {
processFileAndScheduleJobs(fileName, getSystemIdForFileName(fileName), sched);
}
/**
* Process the xml file in the given location, and schedule all of the
* jobs defined within it.
*
* @param fileName
* meta data file name.
*/
public void processFileAndScheduleJobs(String fileName, String systemId, Scheduler sched) throws Exception {
processFile(fileName, systemId);
executePreProcessCommands(sched);
scheduleJobs(sched);
}
/**
* Returns a List of jobs loaded from the xml file.
*
*
* @return a List of jobs.
*/
protected List getLoadedJobs() {
return Collections.unmodifiableList(loadedJobs);
}
/**
* Returns a List of triggers loaded from the xml file.
*
*
* @return a List of triggers.
*/
protected List getLoadedTriggers() {
return Collections.unmodifiableList(loadedTriggers);
}
/**
* Returns an InputStream from the fileName as a resource.
*
* @param fileName
* file name.
* @return an InputStream from the fileName as a resource.
*/
protected InputStream getInputStream(String fileName) {
return this.classLoadHelper.getResourceAsStream(fileName);
}
protected void addJobToSchedule(JobDetail job) {
loadedJobs.add(job);
}
protected void addTriggerToSchedule(Trigger trigger) {
loadedTriggers.add(trigger);
}
private Map> buildTriggersByFQJobNameMap(List triggers) {
Map> triggersByFQJobName = new HashMap>();
for(Trigger trigger: triggers) {
List triggersOfJob = triggersByFQJobName.get(trigger.getFullJobName());
if(triggersOfJob == null) {
triggersOfJob = new LinkedList();
triggersByFQJobName.put(trigger.getFullJobName(), triggersOfJob);
}
triggersOfJob.add(trigger);
}
return triggersByFQJobName;
}
protected void executePreProcessCommands(Scheduler scheduler)
throws SchedulerException {
for(String group: jobGroupsToDelete) {
if(group.equals("*")) {
log.info("Deleting all jobs in ALL groups.");
for (String groupName : scheduler.getJobGroupNames()) {
if (!jobGroupsToNeverDelete.contains(groupName)) {
for (String jobName : scheduler.getJobNames(groupName)) {
scheduler.deleteJob(jobName, groupName);
}
}
}
}
else {
if(!jobGroupsToNeverDelete.contains(group)) {
log.info("Deleting all jobs in group: {}", group);
for (String jobName : scheduler.getJobNames(group)) {
scheduler.deleteJob(jobName, group);
}
}
}
}
for(String group: triggerGroupsToDelete) {
if(group.equals("*")) {
log.info("Deleting all triggers in ALL groups.");
for (String groupName : scheduler.getTriggerGroupNames()) {
if (!triggerGroupsToNeverDelete.contains(groupName)) {
for (String triggerName : scheduler.getTriggerNames(groupName)) {
scheduler.unscheduleJob(triggerName, groupName);
}
}
}
}
else {
if(!triggerGroupsToNeverDelete.contains(group)) {
log.info("Deleting all triggers in group: {}", group);
for (String triggerName : scheduler.getTriggerNames(group)) {
scheduler.unscheduleJob(triggerName, group);
}
}
}
}
for(Key key: jobsToDelete) {
if(!jobGroupsToNeverDelete.contains(key.getGroup())) {
log.info("Deleting job: {}", key);
scheduler.deleteJob(key.getName(), key.getGroup());
}
}
for(Key key: triggersToDelete) {
if(!triggerGroupsToNeverDelete.contains(key.getGroup())) {
log.info("Deleting trigger: {}", key);
scheduler.unscheduleJob(key.getName(), key.getGroup());
}
}
}
/**
* Schedules the given sets of jobs and triggers.
*
* @param sched
* job scheduler.
* @exception SchedulerException
* if the Job or Trigger cannot be added to the Scheduler, or
* there is an internal Scheduler error.
*/
protected void scheduleJobs(Scheduler sched)
throws SchedulerException {
List jobs = new LinkedList(getLoadedJobs());
List triggers = new LinkedList(getLoadedTriggers());
log.info("Adding " + jobs.size() + " jobs, " + triggers.size() + " triggers.");
Map> triggersByFQJobName = buildTriggersByFQJobNameMap(triggers);
// add each job, and it's associated triggers
Iterator itr = jobs.iterator();
while(itr.hasNext()) {
JobDetail detail = itr.next();
itr.remove(); // remove jobs as we handle them...
JobDetail dupeJ = sched.getJobDetail(detail.getName(), detail.getGroup());
if ((dupeJ != null)) {
if(!isOverWriteExistingData() && isIgnoreDuplicates()) {
log.info("Not overwriting existing job: " + dupeJ.getFullName());
continue; // just ignore the entry
}
if(!isOverWriteExistingData() && !isIgnoreDuplicates()) {
throw new ObjectAlreadyExistsException(detail);
}
}
if (dupeJ != null) {
log.info("Replacing job: " + detail.getFullName());
} else {
log.info("Adding job: " + detail.getFullName());
}
List triggersOfJob = triggersByFQJobName.get(detail.getFullName());
if (!detail.isDurable() && (triggersOfJob == null || triggersOfJob.size() == 0)) {
if (dupeJ == null) {
throw new SchedulerException(
"A new job defined without any triggers must be durable: " +
detail.getFullName());
}
if ((dupeJ.isDurable() &&
(sched.getTriggersOfJob(
detail.getName(), detail.getGroup()).length == 0))) {
throw new SchedulerException(
"Can't change existing durable job without triggers to non-durable: " +
detail.getFullName());
}
}
if(dupeJ != null || detail.isDurable()) {
sched.addJob(detail, true); // add the job if a replacement or durable
}
else {
boolean addJobWithFirstSchedule = true;
// Add triggers related to the job...
Iterator titr = triggersOfJob.iterator();
while(titr.hasNext()) {
Trigger trigger = titr.next();
triggers.remove(trigger); // remove triggers as we handle them...
if(trigger.getStartTime() == null) {
trigger.setStartTime(new Date());
}
boolean addedTrigger = false;
while (addedTrigger == false) {
Trigger dupeT = sched.getTrigger(trigger.getName(), trigger.getGroup());
if (dupeT != null) {
if(isOverWriteExistingData()) {
if (log.isDebugEnabled()) {
log.debug(
"Rescheduling job: " + trigger.getFullJobName() + " with updated trigger: " + trigger.getFullName());
}
}
else if(isIgnoreDuplicates()) {
log.info("Not overwriting existing trigger: " + dupeT.getFullName());
continue; // just ignore the trigger (and possibly job)
}
else {
throw new ObjectAlreadyExistsException(trigger);
}
if(!dupeT.getJobGroup().equals(trigger.getJobGroup()) || !dupeT.getJobName().equals(trigger.getJobName())) {
log.warn("Possibly duplicately named ({}) triggers in jobs xml file! ", trigger.getFullName());
}
sched.rescheduleJob(trigger.getName(), trigger.getGroup(), trigger);
} else {
if (log.isDebugEnabled()) {
log.debug(
"Scheduling job: " + trigger.getFullJobName() + " with trigger: " + trigger.getFullName());
}
try {
if(addJobWithFirstSchedule) {
sched.scheduleJob(detail, trigger); // add the job if it's not in yet...
addJobWithFirstSchedule = false;
}
else {
sched.scheduleJob(trigger);
}
} catch (ObjectAlreadyExistsException e) {
if (log.isDebugEnabled()) {
log.debug(
"Adding trigger: " + trigger.getFullName() + " for job: " + detail.getFullName() +
" failed because the trigger already existed. " +
"This is likely due to a race condition between multiple instances " +
"in the cluster. Will try to reschedule instead.");
}
continue;
}
}
addedTrigger = true;
}
}
}
}
// add triggers that weren't associated with a new job... (those we already handled were removed above)
for(Trigger trigger: triggers) {
if(trigger.getStartTime() == null) {
trigger.setStartTime(new Date());
}
boolean addedTrigger = false;
while (addedTrigger == false) {
Trigger dupeT = sched.getTrigger(trigger.getName(), trigger.getGroup());
if (dupeT != null) {
if(isOverWriteExistingData()) {
if (log.isDebugEnabled()) {
log.debug(
"Rescheduling job: " + trigger.getFullJobName() + " with updated trigger: " + trigger.getFullName());
}
}
else if(isIgnoreDuplicates()) {
log.info("Not overwriting existing trigger: " + dupeT.getFullName());
continue; // just ignore the trigger
}
else {
throw new ObjectAlreadyExistsException(trigger);
}
if(!dupeT.getJobGroup().equals(trigger.getJobGroup()) || !dupeT.getJobName().equals(trigger.getJobName())) {
log.warn("Possibly duplicately named ({}) triggers in jobs xml file! ", trigger.getFullName());
}
sched.rescheduleJob(trigger.getName(), trigger.getGroup(), trigger);
} else {
if (log.isDebugEnabled()) {
log.debug(
"Scheduling job: " + trigger.getFullJobName() + " with trigger: " + trigger.getFullName());
}
try {
sched.scheduleJob(trigger);
} catch (ObjectAlreadyExistsException e) {
if (log.isDebugEnabled()) {
log.debug(
"Adding trigger: " + trigger.getFullName() + " for job: " +trigger.getFullJobName() +
" failed because the trigger already existed. " +
"This is likely due to a race condition between multiple instances " +
"in the cluster. Will try to reschedule instead.");
}
continue;
}
}
addedTrigger = true;
}
}
}
/**
* ErrorHandler interface.
*
* Receive notification of a warning.
*
* @param e
* The error information encapsulated in a SAX parse exception.
* @exception SAXException
* Any SAX exception, possibly wrapping another exception.
*/
public void warning(SAXParseException e) throws SAXException {
addValidationException(e);
}
/**
* ErrorHandler interface.
*
* Receive notification of a recoverable error.
*
* @param e
* The error information encapsulated in a SAX parse exception.
* @exception SAXException
* Any SAX exception, possibly wrapping another exception.
*/
public void error(SAXParseException e) throws SAXException {
addValidationException(e);
}
/**
* ErrorHandler interface.
*
* Receive notification of a non-recoverable error.
*
* @param e
* The error information encapsulated in a SAX parse exception.
* @exception SAXException
* Any SAX exception, possibly wrapping another exception.
*/
public void fatalError(SAXParseException e) throws SAXException {
addValidationException(e);
}
/**
* Adds a detected validation exception.
*
* @param e
* SAX exception.
*/
protected void addValidationException(SAXException e) {
validationExceptions.add(e);
}
/**
* Resets the the number of detected validation exceptions.
*/
protected void clearValidationExceptions() {
validationExceptions.clear();
}
/**
* Throws a ValidationException if the number of validationExceptions
* detected is greater than zero.
*
* @exception ValidationException
* DTD validation exception.
*/
protected void maybeThrowValidationException() throws ValidationException {
if (validationExceptions.size() > 0) {
throw new ValidationException("Encountered " + validationExceptions.size() + " validation exceptions.", validationExceptions);
}
}
}