public void handleEvent(
EventSubscriptionEntity eventSubscription, Object payload, CommandContext commandContext) {
String configuration = eventSubscription.getConfiguration();
if (configuration == null) {
throw new ActivitiException(
"Compensating execution not set for compensate event subscription with id "
+ eventSubscription.getId());
}
ExecutionEntity compensatingExecution =
commandContext.getExecutionEntityManager().findExecutionById(configuration);
ActivityImpl compensationHandler = eventSubscription.getActivity();
if ((compensationHandler.getProperty(BpmnParse.PROPERTYNAME_IS_FOR_COMPENSATION) == null
|| !(Boolean)
compensationHandler.getProperty(BpmnParse.PROPERTYNAME_IS_FOR_COMPENSATION))
&& compensationHandler.isScope()) {
// descend into scope:
List<CompensateEventSubscriptionEntity> eventsForThisScope =
compensatingExecution.getCompensateEventSubscriptions();
ScopeUtil.throwCompensationEvent(eventsForThisScope, compensatingExecution, false);
} else {
try {
if (commandContext.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
commandContext
.getProcessEngineConfiguration()
.getEventDispatcher()
.dispatchEvent(
ActivitiEventBuilder.createActivityEvent(
ActivitiEventType.ACTIVITY_COMPENSATE,
compensationHandler.getId(),
compensatingExecution.getId(),
compensatingExecution.getProcessInstanceId(),
compensatingExecution.getProcessDefinitionId()));
}
compensatingExecution.setActivity(compensationHandler);
// executing the atomic operation makes sure activity start events are fired
compensatingExecution.performOperation(AtomicOperation.ACTIVITY_START);
} catch (Exception e) {
throw new ActivitiException(
"Error while handling compensation event " + eventSubscription, e);
}
}
}
protected boolean localizeDataObjectElements(
List<ValuedDataObject> dataObjects, ObjectNode infoNode) {
boolean localizationValuesChanged = false;
CommandContext commandContext = Context.getCommandContext();
DynamicBpmnService dynamicBpmnService =
commandContext.getProcessEngineConfiguration().getDynamicBpmnService();
for (ValuedDataObject dataObject : dataObjects) {
List<ExtensionElement> localizationElements =
dataObject.getExtensionElements().get("localization");
if (localizationElements != null) {
for (ExtensionElement localizationElement : localizationElements) {
if (BpmnXMLConstants.ACTIVITI_EXTENSIONS_PREFIX.equals(
localizationElement.getNamespacePrefix())) {
String locale = localizationElement.getAttributeValue(null, "locale");
String name = localizationElement.getAttributeValue(null, "name");
String documentation = null;
List<ExtensionElement> documentationElements =
localizationElement.getChildElements().get("documentation");
if (documentationElements != null) {
for (ExtensionElement documentationElement : documentationElements) {
documentation = StringUtils.trimToNull(documentationElement.getElementText());
break;
}
}
if (name != null
&& isEqualToCurrentLocalizationValue(
locale,
dataObject.getName(),
DynamicBpmnConstants.LOCALIZATION_NAME,
name,
infoNode)
== false) {
dynamicBpmnService.changeLocalizationName(
locale, dataObject.getName(), name, infoNode);
localizationValuesChanged = true;
}
if (documentation != null
&& isEqualToCurrentLocalizationValue(
locale,
dataObject.getName(),
DynamicBpmnConstants.LOCALIZATION_DESCRIPTION,
documentation,
infoNode)
== false) {
dynamicBpmnService.changeLocalizationDescription(
locale, dataObject.getName(), documentation, infoNode);
localizationValuesChanged = true;
}
}
}
}
}
return localizationValuesChanged;
}
protected void createLocalizationValues(String processDefinitionId, Process process) {
if (process == null) return;
CommandContext commandContext = Context.getCommandContext();
DynamicBpmnService dynamicBpmnService =
commandContext.getProcessEngineConfiguration().getDynamicBpmnService();
ObjectNode infoNode = dynamicBpmnService.getProcessDefinitionInfo(processDefinitionId);
boolean localizationValuesChanged = false;
List<ExtensionElement> localizationElements =
process.getExtensionElements().get("localization");
if (localizationElements != null) {
for (ExtensionElement localizationElement : localizationElements) {
if (BpmnXMLConstants.ACTIVITI_EXTENSIONS_PREFIX.equals(
localizationElement.getNamespacePrefix())) {
String locale = localizationElement.getAttributeValue(null, "locale");
String name = localizationElement.getAttributeValue(null, "name");
String documentation = null;
List<ExtensionElement> documentationElements =
localizationElement.getChildElements().get("documentation");
if (documentationElements != null) {
for (ExtensionElement documentationElement : documentationElements) {
documentation = StringUtils.trimToNull(documentationElement.getElementText());
break;
}
}
String processId = process.getId();
if (isEqualToCurrentLocalizationValue(locale, processId, "name", name, infoNode)
== false) {
dynamicBpmnService.changeLocalizationName(locale, processId, name, infoNode);
localizationValuesChanged = true;
}
if (documentation != null
&& isEqualToCurrentLocalizationValue(
locale, processId, "description", documentation, infoNode)
== false) {
dynamicBpmnService.changeLocalizationDescription(
locale, processId, documentation, infoNode);
localizationValuesChanged = true;
}
break;
}
}
}
boolean isFlowElementLocalizationChanged =
localizeFlowElements(process.getFlowElements(), infoNode);
boolean isDataObjectLocalizationChanged =
localizeDataObjectElements(process.getDataObjects(), infoNode);
if (isFlowElementLocalizationChanged || isDataObjectLocalizationChanged) {
localizationValuesChanged = true;
}
if (localizationValuesChanged) {
dynamicBpmnService.saveProcessDefinitionInfo(processDefinitionId, infoNode);
}
}
protected void addDefinitionInfoToCache(
ProcessDefinitionEntity processDefinition,
ProcessEngineConfigurationImpl processEngineConfiguration,
CommandContext commandContext) {
if (processEngineConfiguration.isEnableProcessDefinitionInfoCache() == false) {
return;
}
DeploymentManager deploymentManager = processEngineConfiguration.getDeploymentManager();
ProcessDefinitionInfoEntityManager definitionInfoEntityManager =
commandContext.getProcessDefinitionInfoEntityManager();
ObjectMapper objectMapper = commandContext.getProcessEngineConfiguration().getObjectMapper();
ProcessDefinitionInfoEntity definitionInfoEntity =
definitionInfoEntityManager.findProcessDefinitionInfoByProcessDefinitionId(
processDefinition.getId());
ObjectNode infoNode = null;
if (definitionInfoEntity != null && definitionInfoEntity.getInfoJsonId() != null) {
byte[] infoBytes =
definitionInfoEntityManager.findInfoJsonById(definitionInfoEntity.getInfoJsonId());
if (infoBytes != null) {
try {
infoNode = (ObjectNode) objectMapper.readTree(infoBytes);
} catch (Exception e) {
throw new ActivitiException(
"Error deserializing json info for process definition " + processDefinition.getId());
}
}
}
ProcessDefinitionInfoCacheObject definitionCacheObject = new ProcessDefinitionInfoCacheObject();
if (definitionInfoEntity == null) {
definitionCacheObject.setRevision(0);
} else {
definitionCacheObject.setId(definitionInfoEntity.getId());
definitionCacheObject.setRevision(definitionInfoEntity.getRevision());
}
if (infoNode == null) {
infoNode = objectMapper.createObjectNode();
}
definitionCacheObject.setInfoNode(infoNode);
deploymentManager
.getProcessDefinitionInfoCache()
.add(processDefinition.getId(), definitionCacheObject);
}
public Task execute(CommandContext commandContext) {
Date currentTime = commandContext.getProcessEngineConfiguration().getClock().getCurrentTime();
TaskEntity task = TaskEntity.create(currentTime);
task.setId(taskId);
return task;
}
public void deploy(DeploymentEntity deployment, Map<String, Object> deploymentSettings) {
log.debug("Processing deployment {}", deployment.getName());
List<ProcessDefinitionEntity> processDefinitions = new ArrayList<ProcessDefinitionEntity>();
Map<String, ResourceEntity> resources = deployment.getResources();
Map<String, BpmnModel> bpmnModelMap = new HashMap<String, BpmnModel>();
final ProcessEngineConfigurationImpl processEngineConfiguration =
Context.getProcessEngineConfiguration();
for (String resourceName : resources.keySet()) {
log.info("Processing resource {}", resourceName);
if (isBpmnResource(resourceName)) {
ResourceEntity resource = resources.get(resourceName);
byte[] bytes = resource.getBytes();
ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);
BpmnParse bpmnParse =
bpmnParser
.createParse()
.sourceInputStream(inputStream)
.setSourceSystemId(resourceName)
.deployment(deployment)
.name(resourceName);
if (deploymentSettings != null) {
// Schema validation if needed
if (deploymentSettings.containsKey(DeploymentSettings.IS_BPMN20_XSD_VALIDATION_ENABLED)) {
bpmnParse.setValidateSchema(
(Boolean)
deploymentSettings.get(DeploymentSettings.IS_BPMN20_XSD_VALIDATION_ENABLED));
}
// Process validation if needed
if (deploymentSettings.containsKey(DeploymentSettings.IS_PROCESS_VALIDATION_ENABLED)) {
bpmnParse.setValidateProcess(
(Boolean) deploymentSettings.get(DeploymentSettings.IS_PROCESS_VALIDATION_ENABLED));
}
} else {
// On redeploy, we assume it is validated at the first deploy
bpmnParse.setValidateSchema(false);
bpmnParse.setValidateProcess(false);
}
bpmnParse.execute();
for (ProcessDefinitionEntity processDefinition : bpmnParse.getProcessDefinitions()) {
processDefinition.setResourceName(resourceName);
if (deployment.getTenantId() != null) {
processDefinition.setTenantId(
deployment.getTenantId()); // process definition inherits the tenant id
}
String diagramResourceName =
getDiagramResourceForProcess(resourceName, processDefinition.getKey(), resources);
// Only generate the resource when deployment is new to prevent modification of deployment
// resources
// after the process-definition is actually deployed. Also to prevent resource-generation
// failure every
// time the process definition is added to the deployment-cache when diagram-generation
// has failed the first time.
if (deployment.isNew()) {
if (processEngineConfiguration.isCreateDiagramOnDeploy()
&& diagramResourceName == null
&& processDefinition.isGraphicalNotationDefined()) {
try {
byte[] diagramBytes =
IoUtil.readInputStream(
processEngineConfiguration
.getProcessDiagramGenerator()
.generateDiagram(
bpmnParse.getBpmnModel(),
"png",
processEngineConfiguration.getActivityFontName(),
processEngineConfiguration.getLabelFontName(),
processEngineConfiguration.getClassLoader()),
null);
diagramResourceName =
getProcessImageResourceName(resourceName, processDefinition.getKey(), "png");
createResource(diagramResourceName, diagramBytes, deployment);
} catch (
Throwable
t) { // if anything goes wrong, we don't store the image (the process will
// still be executable).
log.warn(
"Error while generating process diagram, image will not be stored in repository",
t);
}
}
}
processDefinition.setDiagramResourceName(diagramResourceName);
processDefinitions.add(processDefinition);
bpmnModelMap.put(processDefinition.getKey(), bpmnParse.getBpmnModel());
}
}
}
// check if there are process definitions with the same process key to prevent database unique
// index violation
List<String> keyList = new ArrayList<String>();
for (ProcessDefinitionEntity processDefinition : processDefinitions) {
if (keyList.contains(processDefinition.getKey())) {
throw new ActivitiException(
"The deployment contains process definitions with the same key (process id atrribute), this is not allowed");
}
keyList.add(processDefinition.getKey());
}
CommandContext commandContext = Context.getCommandContext();
ProcessDefinitionEntityManager processDefinitionManager =
commandContext.getProcessDefinitionEntityManager();
DbSqlSession dbSqlSession = commandContext.getSession(DbSqlSession.class);
for (ProcessDefinitionEntity processDefinition : processDefinitions) {
List<TimerEntity> timers = new ArrayList<TimerEntity>();
if (deployment.isNew()) {
int processDefinitionVersion;
ProcessDefinitionEntity latestProcessDefinition = null;
if (processDefinition.getTenantId() != null
&& !ProcessEngineConfiguration.NO_TENANT_ID.equals(processDefinition.getTenantId())) {
latestProcessDefinition =
processDefinitionManager.findLatestProcessDefinitionByKeyAndTenantId(
processDefinition.getKey(), processDefinition.getTenantId());
} else {
latestProcessDefinition =
processDefinitionManager.findLatestProcessDefinitionByKey(processDefinition.getKey());
}
if (latestProcessDefinition != null) {
processDefinitionVersion = latestProcessDefinition.getVersion() + 1;
} else {
processDefinitionVersion = 1;
}
processDefinition.setVersion(processDefinitionVersion);
processDefinition.setDeploymentId(deployment.getId());
String nextId = idGenerator.getNextId();
String processDefinitionId =
processDefinition.getKey()
+ ":"
+ processDefinition.getVersion()
+ ":"
+ nextId; // ACT-505
// ACT-115: maximum id length is 64 charcaters
if (processDefinitionId.length() > 64) {
processDefinitionId = nextId;
}
processDefinition.setId(processDefinitionId);
if (commandContext.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
commandContext
.getProcessEngineConfiguration()
.getEventDispatcher()
.dispatchEvent(
ActivitiEventBuilder.createEntityEvent(
ActivitiEventType.ENTITY_CREATED, processDefinition));
}
removeObsoleteTimers(processDefinition);
addTimerDeclarations(processDefinition, timers);
removeExistingMessageEventSubscriptions(processDefinition, latestProcessDefinition);
addMessageEventSubscriptions(processDefinition);
removeExistingSignalEventSubScription(processDefinition, latestProcessDefinition);
addSignalEventSubscriptions(processDefinition);
dbSqlSession.insert(processDefinition);
addAuthorizations(processDefinition);
if (commandContext.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
commandContext
.getProcessEngineConfiguration()
.getEventDispatcher()
.dispatchEvent(
ActivitiEventBuilder.createEntityEvent(
ActivitiEventType.ENTITY_INITIALIZED, processDefinition));
}
scheduleTimers(timers);
} else {
String deploymentId = deployment.getId();
processDefinition.setDeploymentId(deploymentId);
ProcessDefinitionEntity persistedProcessDefinition = null;
if (processDefinition.getTenantId() == null
|| ProcessEngineConfiguration.NO_TENANT_ID.equals(processDefinition.getTenantId())) {
persistedProcessDefinition =
processDefinitionManager.findProcessDefinitionByDeploymentAndKey(
deploymentId, processDefinition.getKey());
} else {
persistedProcessDefinition =
processDefinitionManager.findProcessDefinitionByDeploymentAndKeyAndTenantId(
deploymentId, processDefinition.getKey(), processDefinition.getTenantId());
}
if (persistedProcessDefinition != null) {
processDefinition.setId(persistedProcessDefinition.getId());
processDefinition.setVersion(persistedProcessDefinition.getVersion());
processDefinition.setSuspensionState(persistedProcessDefinition.getSuspensionState());
}
}
// Add to cache
DeploymentManager deploymentManager = processEngineConfiguration.getDeploymentManager();
deploymentManager
.getProcessDefinitionCache()
.add(processDefinition.getId(), processDefinition);
addDefinitionInfoToCache(processDefinition, processEngineConfiguration, commandContext);
// Add to deployment for further usage
deployment.addDeployedArtifact(processDefinition);
createLocalizationValues(
processDefinition.getId(),
bpmnModelMap.get(processDefinition.getKey()).getProcessById(processDefinition.getKey()));
}
}
protected boolean localizeFlowElements(
Collection<FlowElement> flowElements, ObjectNode infoNode) {
boolean localizationValuesChanged = false;
if (flowElements == null) return localizationValuesChanged;
CommandContext commandContext = Context.getCommandContext();
DynamicBpmnService dynamicBpmnService =
commandContext.getProcessEngineConfiguration().getDynamicBpmnService();
for (FlowElement flowElement : flowElements) {
if (flowElement instanceof UserTask || flowElement instanceof SubProcess) {
List<ExtensionElement> localizationElements =
flowElement.getExtensionElements().get("localization");
if (localizationElements != null) {
for (ExtensionElement localizationElement : localizationElements) {
if (BpmnXMLConstants.ACTIVITI_EXTENSIONS_PREFIX.equals(
localizationElement.getNamespacePrefix())) {
String locale = localizationElement.getAttributeValue(null, "locale");
String name = localizationElement.getAttributeValue(null, "name");
String documentation = null;
List<ExtensionElement> documentationElements =
localizationElement.getChildElements().get("documentation");
if (documentationElements != null) {
for (ExtensionElement documentationElement : documentationElements) {
documentation = StringUtils.trimToNull(documentationElement.getElementText());
break;
}
}
String flowElementId = flowElement.getId();
if (isEqualToCurrentLocalizationValue(locale, flowElementId, "name", name, infoNode)
== false) {
dynamicBpmnService.changeLocalizationName(locale, flowElementId, name, infoNode);
localizationValuesChanged = true;
}
if (documentation != null
&& isEqualToCurrentLocalizationValue(
locale, flowElementId, "description", documentation, infoNode)
== false) {
dynamicBpmnService.changeLocalizationDescription(
locale, flowElementId, documentation, infoNode);
localizationValuesChanged = true;
}
break;
}
}
}
if (flowElement instanceof SubProcess) {
SubProcess subprocess = (SubProcess) flowElement;
boolean isFlowElementLocalizationChanged =
localizeFlowElements(subprocess.getFlowElements(), infoNode);
boolean isDataObjectLocalizationChanged =
localizeDataObjectElements(subprocess.getDataObjects(), infoNode);
if (isFlowElementLocalizationChanged || isDataObjectLocalizationChanged) {
localizationValuesChanged = true;
}
}
}
}
return localizationValuesChanged;
}