/** Constructs a snapshot of ingest job progress. */
private ProgressSnapshot(boolean getIngestTasksSnapshot) {
dataSourceModule = null;
fileIngestRunning = false;
fileIngestStartTime = null;
dataSourceProcessingSnapshots = new ArrayList<>();
for (DataSourceIngestJob dataSourceJob : dataSourceJobs.values()) {
DataSourceIngestJob.Snapshot snapshot = dataSourceJob.getSnapshot(getIngestTasksSnapshot);
dataSourceProcessingSnapshots.add(new DataSourceProcessingSnapshot(snapshot));
if (null == dataSourceModule) {
DataSourceIngestPipeline.PipelineModule module =
snapshot.getDataSourceLevelIngestModule();
if (null != module) {
dataSourceModule =
new DataSourceIngestModuleHandle(dataSourceJobs.get(snapshot.getJobId()), module);
}
}
if (snapshot.fileIngestIsRunning()) {
fileIngestRunning = true;
}
Date childFileIngestStartTime = snapshot.fileIngestStartTime();
if (null != childFileIngestStartTime
&& (null == fileIngestStartTime
|| childFileIngestStartTime.before(fileIngestStartTime))) {
fileIngestStartTime = childFileIngestStartTime;
}
}
this.jobCancelled = cancelled;
}
/**
* Starts this ingest job by starting its ingest module pipelines and scheduling the ingest tasks
* that make up the job.
*
* @return A collection of ingest module start up errors, empty on success.
*/
synchronized List<IngestModuleError> start() {
List<IngestModuleError> errors = new ArrayList<>();
if (started) {
errors.add(
new IngestModuleError("IngestJob", new IllegalStateException("Job already started")));
return errors;
}
started = true;
for (DataSourceIngestJob dataSourceJob : this.dataSourceJobs.values()) {
errors.addAll(dataSourceJob.start());
if (!errors.isEmpty()) {
break;
}
}
/**
* TODO: Need to let successfully started data source ingest jobs know they should shut down.
* This means that the start up of the ingest module pipelines and the submission of ingest
* tasks should be separated. This cancellation is just a stop gap; fortunately, if startup is
* going to fail, it will likely fail for the first child data source ingest job.
*/
if (!errors.isEmpty()) {
for (DataSourceIngestJob dataSourceJob : this.dataSourceJobs.values()) {
dataSourceJob.cancel();
}
}
return errors;
}
/**
* Gets snapshots of the progress of each of this ingest job's child data source ingest jobs.
*
* @return A list of data source ingest job progress snapshots.
*/
List<DataSourceIngestJob.Snapshot> getDataSourceIngestJobSnapshots() {
List<DataSourceIngestJob.Snapshot> snapshots = new ArrayList<>();
for (DataSourceIngestJob dataSourceJob : this.dataSourceJobs.values()) {
snapshots.add(dataSourceJob.getSnapshot(true));
}
return snapshots;
}
/**
* Checks to see if this ingest job has at least one ingest pipeline when its settings are
* applied.
*
* @return True or false.
*/
boolean hasIngestPipeline() {
for (DataSourceIngestJob dataSourceJob : this.dataSourceJobs.values()) {
if (dataSourceJob.hasIngestPipeline()) {
return true;
}
}
return false;
}
/**
* Constructs an ingest job that runs a collection of data sources through a set of ingest modules
* specified via ingest job settings.
*
* @param dataSources The data sources to be ingested.
* @param settings The ingest job settings.
* @param runInteractively Whether or not this job should use progress bars, message boxes for
* errors, etc.
*/
IngestJob(Collection<Content> dataSources, IngestJobSettings settings, boolean runInteractively) {
this.id = IngestJob.nextId.getAndIncrement();
this.dataSourceJobs = new ConcurrentHashMap<>();
for (Content dataSource : dataSources) {
DataSourceIngestJob dataSourceIngestJob =
new DataSourceIngestJob(this, dataSource, settings, runInteractively);
this.dataSourceJobs.put(dataSourceIngestJob.getId(), dataSourceIngestJob);
}
incompleteJobsCount = new AtomicInteger(dataSourceJobs.size());
}
/**
* Constructs a handle to a data source level ingest module that can be used to get basic
* information about the module and to request cancellation of the module.
*
* @param DataSourceIngestJob The data source ingest job that owns the data source level ingest
* module.
* @param module The data source level ingest module.
*/
private DataSourceIngestModuleHandle(
DataSourceIngestJob job, DataSourceIngestPipeline.PipelineModule module) {
this.job = job;
this.module = module;
this.cancelled = job.currentDataSourceIngestModuleIsCancelled();
}
/**
* Requests cancellation of this ingest job, which means discarding unfinished tasks and stopping
* the ingest pipelines. Returns immediately, but there may be a delay before all of the ingest
* modules in the pipelines respond by stopping processing.
*/
public void cancel() {
for (DataSourceIngestJob job : this.dataSourceJobs.values()) {
job.cancel();
}
this.cancelled = true;
}
