/**
* Read last completed process/task instance end time from carbon registry
*
* @param resourcePath resource path in the carbon registry
* @param propertyPath property path in the resource
* @return the end time of last completed process/task instance
*/
private String readPublishTimeFromRegistry(String resourcePath, String propertyPath) {
String time = null;
try {
PrivilegedCarbonContext carbonContext = PrivilegedCarbonContext.getThreadLocalCarbonContext();
Registry registry = carbonContext.getRegistry(RegistryType.SYSTEM_GOVERNANCE);
if (registry != null) {
if (registry.resourceExists(resourcePath)) {
if (log.isDebugEnabled()) {
log.debug("Process instance resource path exists..." + resourcePath);
}
Resource resource = registry.get(resourcePath);
time = resource.getProperty(propertyPath);
}
} else {
if (log.isDebugEnabled()) {
log.debug("Registry is null...");
}
throw new RegistryException("Registry is null");
}
} catch (RegistryException e) {
String errMsg = "Registry error while reading the process instance publish time.";
log.error(errMsg, e);
}
return time;
}
/**
* Write last completed task instance end time to carbon registry
*
* @param historicTaskInstanceList List of historic task instances
*/
private void writeTaskEndTimeToRegistry(List<HistoricTaskInstance> historicTaskInstanceList) {
if (log.isDebugEnabled()) {
log.debug("Start writing last completed task instance end time...");
}
Date lastTaskInstanceDate =
historicTaskInstanceList.get(historicTaskInstanceList.size() - 1).getEndTime();
try {
PrivilegedCarbonContext privilegedContext =
PrivilegedCarbonContext.getThreadLocalCarbonContext();
Registry registry = privilegedContext.getRegistry(RegistryType.SYSTEM_GOVERNANCE);
Resource resource;
if (!registry.resourceExists(AnalyticsPublisherConstants.TASK_RESOURCE_PATH)) {
resource = registry.newResource();
resource.addProperty(
AnalyticsPublisherConstants.LAST_TASK_INSTANCE_END_TIME,
String.valueOf(lastTaskInstanceDate));
registry.put(AnalyticsPublisherConstants.TASK_RESOURCE_PATH, resource);
} else {
resource = registry.get(AnalyticsPublisherConstants.TASK_RESOURCE_PATH);
resource.setProperty(
AnalyticsPublisherConstants.LAST_TASK_INSTANCE_END_TIME,
String.valueOf(lastTaskInstanceDate));
registry.put(AnalyticsPublisherConstants.TASK_RESOURCE_PATH, resource);
}
if (log.isDebugEnabled()) {
log.debug("End of writing last completed task instance end time...");
}
} catch (RegistryException e) {
String errMsg = "Registry error while writing the task instance end time.";
log.error(errMsg, e);
}
}
private void loadBAMProfileFromRegistry(
BAMServerProfile bamServerProfile, Registry registry, String location) {
try {
if (registry.resourceExists(location)) {
Resource resource = registry.get(location);
String resourceContent = new String((byte[]) resource.getContent());
OMElement resourceElement =
new StAXOMBuilder(new ByteArrayInputStream(resourceContent.getBytes()))
.getDocumentElement();
processBAMServerProfileName(resourceElement, bamServerProfile);
processCredentialElement(resourceElement, bamServerProfile);
processConnectionElement(resourceElement, bamServerProfile);
processKeyStoreElement(resourceElement, bamServerProfile);
processStreamsElement(resourceElement, bamServerProfile);
} else {
String errMsg = "The resource: " + location + " does not exist.";
handleError(errMsg);
}
} catch (RegistryException e) {
String errMsg =
"Error occurred while reading the resource from registry: "
+ location
+ " to build the BAM server profile: "
+ profileLocation;
handleError(errMsg, e);
} catch (XMLStreamException e) {
String errMsg =
"Error occurred while creating the OMElement out of BAM server "
+ "profile: "
+ profileLocation;
handleError(errMsg, e);
} catch (CryptoException e) {
String errMsg =
"Error occurred while decrypting password in BAM server profile: " + profileLocation;
handleError(errMsg, e);
}
}