/**
* Deletes all the jobs from Chronos.
*
* @param jobgraph the job graph.
* @param client the {@link Chronos} client.
* @param failAtFirst if <tt>true</tt> throws an exception at the first job deletion error,
* otherwise it tries to delete every other job.
* @return <tt>true</tt> if all jobs have been deleted, <tt>false</tt> otherwise.
*/
protected boolean deleteJobsOnChronosIteratively(
Deployment deployment,
Map<String, IndigoJob> jobgraph,
TemplateTopologicalOrderIterator templateTopologicalOrderIterator,
Chronos client,
boolean failAtFirst) {
Resource currentNode = templateTopologicalOrderIterator.getCurrent();
if (currentNode == null) {
return false;
}
IndigoJob currentJob = jobgraph.get(currentNode.getToscaNodeName());
boolean failed = false;
// Delete current job (all jobs iteratively)
try {
try {
updateResource(deployment, currentJob, NodeStates.DELETING);
currentNode.setState(NodeStates.DELETING);
String jobName = currentJob.getChronosJob().getName();
client.deleteJob(jobName);
LOG.debug(
"Deleted Chronos job <{}> for deployment <{}> ({}/{})",
jobName,
deployment.getId(),
templateTopologicalOrderIterator.getPosition() + 1,
templateTopologicalOrderIterator.getNodeSize());
} catch (ChronosException ce) {
// Chronos API hack (to avoid error 400 if the job to delete does not exist)
if (ce.getStatus() != 400 && ce.getStatus() != 404) {
throw new RuntimeException(String.format("Status Code: <%s>", ce.getStatus()));
}
}
} catch (Exception ex) {
// Just log the error
String errorMsg = String.format("Failed to delete job <%s> on Chronos: %s", ex.getMessage());
LOG.error(errorMsg);
failed = true;
// Update job status
updateResource(deployment, currentJob, NodeStates.ERROR);
currentNode.setState(NodeStates.ERROR);
// Only throw exception if required
if (failAtFirst) {
// TODO use a custom exception ?
throw new RuntimeException(errorMsg);
}
}
return !failed;
}
/**
* @param deployment the deployment from which create the jobs
* @param jobgraph the graph of the jobs
* @param templateTopologicalOrderIterator the topological order iterator of the jobs
* @param client the Chronos client to use
* @return <tt>true</tt> if there are more nodes to create, <tt>false</tt> otherwise.
*/
protected boolean createJobsOnChronosIteratively(
Deployment deployment,
Map<String, IndigoJob> jobgraph,
TemplateTopologicalOrderIterator templateTopologicalOrderIterator,
Chronos client) {
// Create Jobs in the required order on Chronos
Resource currentNode = templateTopologicalOrderIterator.getCurrent();
if (currentNode == null) {
return false;
}
IndigoJob currentJob = jobgraph.get(currentNode.getToscaNodeName());
// Create jobs based on the topological order
try {
String nodeTypeMsg;
if (currentJob.getParents().isEmpty()) {
// Scheduled job (not dependent)
nodeTypeMsg = "scheduled";
client.createJob(currentJob.getChronosJob());
} else {
// Dependent job
nodeTypeMsg = String.format("parents <%s>", currentJob.getChronosJob().getParents());
client.createDependentJob(currentJob.getChronosJob());
}
LOG.debug(
"Created job for deployment <{}> on Chronos: name <{}>, {} ({}/{})",
deployment.getId(),
currentJob.getChronosJob().getName(),
nodeTypeMsg,
templateTopologicalOrderIterator.getPosition() + 1,
templateTopologicalOrderIterator.getNodeSize());
// Update job status
updateResource(deployment, currentJob, NodeStates.CREATED);
// The node in the iterator is not actually an entity (serialization issues)
currentNode.setState(NodeStates.CREATED);
} catch (ChronosException exception) { // Chronos job launch error
// Update job status
updateResource(deployment, currentJob, NodeStates.ERROR);
currentNode.setState(NodeStates.ERROR);
// TODO use a custom exception ?
throw new RuntimeException(
String.format(
"Failed to launch job <%s> on Chronos. Status Code: <%s>",
currentJob.getChronosJob().getName(), exception.getStatus()));
}
return templateTopologicalOrderIterator.getNext() != null;
}