expectedType = type;
break;
}
if (expectedType == null)
throw new WorkflowOperationException("'" + expectedTypeStr + "' is not a valid element type");
}
List<String> sourceTagList = asList(sourceTags);
// Select the tracks based on source flavors and tags
Set<MediaPackageElement> inputSet = new HashSet<MediaPackageElement>();
for (MediaPackageElement element : mediaPackage.getElementsByTags(sourceTagList)) {
MediaPackageElementFlavor elementFlavor = element.getFlavor();
if (sourceFlavor == null || (elementFlavor != null && elementFlavor.matches(matchingFlavor))) {
inputSet.add(element);
}
}
if (inputSet.size() == 0) {
logger.warn("Mediapackage {} has no suitable elements to execute the command {} based on tags {} and flavor {}",
new Object[] { mediaPackage, exec, sourceTags, sourceFlavor });
return createResult(mediaPackage, Action.CONTINUE);
}
MediaPackageElement[] inputElements = inputSet.toArray(new MediaPackageElement[inputSet.size()]);
try{
Job[] jobs = new Job[inputElements.length];
MediaPackageElement[] resultElements = new MediaPackageElement[inputElements.length];
long totalTimeInQueue = 0;
for (int i = 0; i < inputElements.length; i++)
jobs[i] = executeService.execute(exec, params, inputElements[i], outputFilename, expectedType);
// Wait for all jobs to be finished
if (!waitForStatus(jobs).isSuccess())
throw new WorkflowOperationException("Execute operation failed");
// Find which output elements are tracks and inspect them
HashMap<Integer,Job> jobMap = new HashMap<Integer,Job>();
for (int i = 0; i < jobs.length; i++) {
// Add this job's queue time to the total
totalTimeInQueue += jobs[i].getQueueTime();
if (StringUtils.trimToNull(jobs[i].getPayload()) != null) {
resultElements[i] = MediaPackageElementParser.getFromXml(jobs[i].getPayload());
if (resultElements[i].getElementType() == MediaPackageElement.Type.Track) {
jobMap.put(i, inspectionService.inspect(resultElements[i].getURI()));
}
} else
resultElements[i] = inputElements[i];
}
if (jobMap.size() > 0) {
if (!waitForStatus(jobMap.values().toArray(new Job[jobMap.size()])).isSuccess())
throw new WorkflowOperationException("Execute operation failed in track inspection");
for (Entry<Integer, Job> entry : jobMap.entrySet()) {
// Add this job's queue time to the total
totalTimeInQueue += entry.getValue().getQueueTime();
resultElements[entry.getKey()] = MediaPackageElementParser.getFromXml(entry.getValue().getPayload());
}
}
for (int i = 0; i < resultElements.length; i++) {
if (resultElements[i] != inputElements[i]) {
// Store new element to mediaPackage
mediaPackage.addDerived(resultElements[i], inputElements[i]);
// Store new element to mediaPackage
URI uri = workspace.moveTo(resultElements[i].getURI(), mediaPackage.getIdentifier().toString(),
resultElements[i].getIdentifier(), outputFilename);
resultElements[i].setURI(uri);
// Set new flavor
if (targetFlavor != null)
resultElements[i].setFlavor(targetFlavor);
}
// Set new tags
if (targetTags != null)
// Assume the tags starting with "-" means we want to eliminate such tags form the result element
for (String tag : asList(targetTags)) {
if (tag.startsWith("-"))
// We remove the tag resulting from stripping all the '-' characters at the beginning of the tag
resultElements[i].removeTag(tag.replaceAll("^-+", ""));
else
resultElements[i].addTag(tag);
}
}
WorkflowOperationResult result = createResult(mediaPackage, Action.CONTINUE, totalTimeInQueue);
logger.debug("Execute operation {} completed", operation.getId());
return result;
} catch (ExecuteException e) {
throw new WorkflowOperationException(e);
} catch (MediaPackageException e) {
throw new WorkflowOperationException("Some result element couldn't be serialized", e);
} catch (NotFoundException e) {
throw new WorkflowOperationException("Could not find mediapackage", e);
} catch (IOException e) {
throw new WorkflowOperationException("Error unmarshalling a result mediapackage element", e);
} catch (MediaInspectionException e) {
throw new WorkflowOperationException("Error inspecting one of the created tracks", e);
}
}