private JobExecution getLastFailedJobExecution(String jobIdentifier) {
List<JobExecution> jobExecutions =
getJobExecutionsWithStatusGreaterThan(jobIdentifier, BatchStatus.STOPPING);
if (jobExecutions.isEmpty()) {
return null;
}
return jobExecutions.get(0);
}
private List<JobExecution> getRunningJobExecutions(String jobIdentifier) {
List<JobExecution> jobExecutions =
getJobExecutionsWithStatusGreaterThan(jobIdentifier, BatchStatus.COMPLETED);
if (jobExecutions.isEmpty()) {
return null;
}
List<JobExecution> result = new ArrayList<JobExecution>();
for (JobExecution jobExecution : jobExecutions) {
if (jobExecution.isRunning()) {
result.add(jobExecution);
}
}
return result.isEmpty() ? null : result;
}
private List<JobExecution> getStoppedJobExecutions(String jobIdentifier) {
List<JobExecution> jobExecutions =
getJobExecutionsWithStatusGreaterThan(jobIdentifier, BatchStatus.STARTED);
if (jobExecutions.isEmpty()) {
return null;
}
List<JobExecution> result = new ArrayList<JobExecution>();
for (JobExecution jobExecution : jobExecutions) {
if (jobExecution.getStatus() != BatchStatus.ABANDONED) {
result.add(jobExecution);
}
}
return result.isEmpty() ? null : result;
}
/**
* @param job the job that we need to find the next parameters for
* @return the next job parameters if they can be located
* @throws JobParametersNotFoundException if there is a problem
*/
private JobParameters getNextJobParameters(Job job) throws JobParametersNotFoundException {
String jobIdentifier = job.getName();
JobParameters jobParameters;
List<JobInstance> lastInstances = jobExplorer.getJobInstances(jobIdentifier, 0, 1);
JobParametersIncrementer incrementer = job.getJobParametersIncrementer();
if (incrementer == null) {
throw new JobParametersNotFoundException(
"No job parameters incrementer found for job=" + jobIdentifier);
}
if (lastInstances.isEmpty()) {
jobParameters = incrementer.getNext(new JobParameters());
if (jobParameters == null) {
throw new JobParametersNotFoundException(
"No bootstrap parameters found from incrementer for job=" + jobIdentifier);
}
} else {
jobParameters = incrementer.getNext(lastInstances.get(0).getJobParameters());
}
return jobParameters;
}
/**
* @param jobIdentifier a job execution id or job name
* @param minStatus the highest status to exclude from the result
* @return
*/
private List<JobExecution> getJobExecutionsWithStatusGreaterThan(
String jobIdentifier, BatchStatus minStatus) {
Long executionId = getLongIdentifier(jobIdentifier);
if (executionId != null) {
JobExecution jobExecution = jobExplorer.getJobExecution(executionId);
if (jobExecution.getStatus().isGreaterThan(minStatus)) {
return Arrays.asList(jobExecution);
}
return Collections.emptyList();
}
int start = 0;
int count = 100;
List<JobExecution> executions = new ArrayList<JobExecution>();
List<JobInstance> lastInstances = jobExplorer.getJobInstances(jobIdentifier, start, count);
while (!lastInstances.isEmpty()) {
for (JobInstance jobInstance : lastInstances) {
List<JobExecution> jobExecutions = jobExplorer.getJobExecutions(jobInstance);
if (jobExecutions == null || jobExecutions.isEmpty()) {
continue;
}
for (JobExecution jobExecution : jobExecutions) {
if (jobExecution.getStatus().isGreaterThan(minStatus)) {
executions.add(jobExecution);
}
}
}
start += count;
lastInstances = jobExplorer.getJobInstances(jobIdentifier, start, count);
}
return executions;
}