@Override
public void setCollection(Object[] items) {
if (items == null) {
setInstances(new Instance[0]);
} else {
Instance[] newInstances = new Instance[items.length];
for (int index = 0; index < items.length; index++) {
newInstances[index] = (Instance) items[index];
}
setInstances(newInstances);
}
}
@Override
public InstancesResult getJobDetails(String cluster, String jobId) throws FalconException {
InstancesResult.Instance[] instances = new InstancesResult.Instance[1];
InstancesResult result =
new InstancesResult(APIResult.Status.SUCCEEDED, "Instance for workflow id:" + jobId);
instances[0] = DAGEngineFactory.getDAGEngine(cluster).info(jobId);
result.setInstances(instances);
return result;
}
@Override
public InstancesResult getRunningInstances(Entity entity, List<LifeCycle> lifeCycles)
throws FalconException {
Set<String> clusters = EntityUtil.getClustersDefinedInColos(entity);
List<InstancesResult.Instance> runInstances = new ArrayList<>();
for (String cluster : clusters) {
Collection<InstanceState> instances =
STATE_STORE.getExecutionInstances(entity, cluster, InstanceState.getRunningStates());
for (InstanceState state : instances) {
String instanceTimeStr = state.getInstance().getInstanceTime().toString();
InstancesResult.Instance instance =
new InstancesResult.Instance(
cluster, instanceTimeStr, InstancesResult.WorkflowStatus.RUNNING);
instance.startTime = state.getInstance().getActualStart().toDate();
runInstances.add(instance);
}
}
InstancesResult result = new InstancesResult(APIResult.Status.SUCCEEDED, "Running Instances");
result.setInstances(runInstances.toArray(new InstancesResult.Instance[runInstances.size()]));
return result;
}
private InstancesResult doJobAction(
JobAction action,
Entity entity,
Date start,
Date end,
Properties props,
List<LifeCycle> lifeCycles,
boolean isForced)
throws FalconException {
Set<String> clusters = EntityUtil.getClustersDefinedInColos(entity);
List<String> clusterList = getIncludedClusters(props, FALCON_INSTANCE_ACTION_CLUSTERS);
APIResult.Status overallStatus = APIResult.Status.SUCCEEDED;
int instanceCount = 0;
Collection<InstanceState.STATE> states;
switch (action) {
case KILL:
case SUSPEND:
states = InstanceState.getActiveStates();
break;
case RESUME:
states = new ArrayList<>();
states.add(InstanceState.STATE.SUSPENDED);
break;
case PARAMS:
// Applicable only for running and finished jobs.
states = InstanceState.getRunningStates();
states.addAll(InstanceState.getTerminalStates());
states.add(InstanceState.STATE.SUSPENDED);
break;
case STATUS:
states = InstanceState.getActiveStates();
states.addAll(InstanceState.getTerminalStates());
states.add(InstanceState.STATE.SUSPENDED);
break;
case RERUN:
// Applicable only for terminated States
states = InstanceState.getTerminalStates();
break;
default:
throw new IllegalArgumentException("Unhandled action " + action);
}
List<ExecutionInstance> instancesToActOn = new ArrayList<>();
for (String cluster : clusters) {
if (clusterList.size() != 0 && !clusterList.contains(cluster)) {
continue;
}
LOG.debug("Retrieving instances for cluster : {} for action {}", cluster, action);
Collection<InstanceState> instances =
STATE_STORE.getExecutionInstances(
entity, cluster, states, new DateTime(start), new DateTime(end));
for (InstanceState state : instances) {
instancesToActOn.add(state.getInstance());
}
}
// To ensure compatibility with OozieWorkflowEngine.
// Also because users would like to see the most recent instances first.
sortInstancesDescBySequence(instancesToActOn);
List<InstancesResult.Instance> instances = new ArrayList<>();
for (ExecutionInstance ins : instancesToActOn) {
instanceCount++;
String instanceTimeStr = SchemaHelper.formatDateUTC(ins.getInstanceTime().toDate());
InstancesResult.Instance instance = null;
try {
instance = performAction(ins.getCluster(), entity, action, ins, props, isForced);
instance.instance = instanceTimeStr;
} catch (FalconException e) {
LOG.warn("Unable to perform action {} on cluster", action, e);
instance = new InstancesResult.Instance(ins.getCluster(), instanceTimeStr, null);
instance.status = InstancesResult.WorkflowStatus.ERROR;
instance.details = e.getMessage();
overallStatus = APIResult.Status.PARTIAL;
}
instances.add(instance);
}
if (instanceCount < 2 && overallStatus == APIResult.Status.PARTIAL) {
overallStatus = APIResult.Status.FAILED;
}
InstancesResult instancesResult = new InstancesResult(overallStatus, action.name());
instancesResult.setInstances(instances.toArray(new InstancesResult.Instance[instances.size()]));
return instancesResult;
}