/**
* start a topology: set active status of the topology
*
* @param topologyName
* @param stormClusterState
* @param topologyId
* @throws Exception
*/
public void setTopologyStatus(TopologyAssignEvent event) throws Exception {
StormClusterState stormClusterState = nimbusData.getStormClusterState();
String topologyId = event.getTopologyId();
String topologyName = event.getTopologyName();
String group = event.getGroup();
StormStatus status = new StormStatus(StatusType.active);
if (event.getOldStatus() != null) {
status = event.getOldStatus();
}
StormBase stormBase = stormClusterState.storm_base(topologyId, null);
if (stormBase == null) {
stormBase = new StormBase(topologyName, TimeUtils.current_time_secs(), status, group);
stormClusterState.activate_storm(topologyId, stormBase);
} else {
stormClusterState.update_storm(topologyId, status);
// here exist one hack operation
// when monitor/rebalance/startup topologyName is null
if (topologyName == null) {
event.setTopologyName(stormBase.getStormName());
}
}
LOG.info("Update " + topologyId + " " + status);
}
/**
* Get TopologyInfo, it contain all data of the topology running status
*
* @return TopologyInfo
*/
@Override
public TopologyInfo getTopologyInfo(String topologyId) throws NotAliveException, TException {
TopologyInfo topologyInfo = new TopologyInfo();
StormClusterState stormClusterState = data.getStormClusterState();
try {
// get topology's StormBase
StormBase base = stormClusterState.storm_base(topologyId, null);
if (base == null) {
throw new NotAliveException("No topology of " + topologyId);
}
topologyInfo.set_id(topologyId);
topologyInfo.set_name(base.getStormName());
topologyInfo.set_uptime_secs(TimeUtils.time_delta(base.getLanchTimeSecs()));
topologyInfo.set_status(base.getStatusString());
// get topology's Assignment
Assignment assignment = stormClusterState.assignment_info(topologyId, null);
if (assignment == null) {
throw new TException("Failed to get StormBase from ZK of " + topologyId);
}
// get topology's map<taskId, componentId>
Map<Integer, String> taskInfo = Cluster.topology_task_info(stormClusterState, topologyId);
List<TaskSummary> tasks =
NimbusUtils.mkTaskSummary(stormClusterState, assignment, taskInfo, topologyId);
topologyInfo.set_tasks(tasks);
return topologyInfo;
} catch (TException e) {
LOG.info("Failed to get topologyInfo " + topologyId, e);
throw e;
} catch (Exception e) {
LOG.info("Failed to get topologyInfo " + topologyId, e);
throw new TException("Failed to get topologyInfo" + topologyId);
}
}
/**
* get cluster's summary, it will contain SupervisorSummary and TopologySummary
*
* @return ClusterSummary
*/
@Override
public ClusterSummary getClusterInfo() throws TException {
try {
StormClusterState stormClusterState = data.getStormClusterState();
Map<String, Assignment> assignments = new HashMap<String, Assignment>();
// get nimbus running time
int uptime = data.uptime();
// get TopologySummary
List<TopologySummary> topologySummaries = new ArrayList<TopologySummary>();
// get all active topology's StormBase
Map<String, StormBase> bases = Cluster.topology_bases(stormClusterState);
for (Entry<String, StormBase> entry : bases.entrySet()) {
String topologyId = entry.getKey();
StormBase base = entry.getValue();
Assignment assignment = stormClusterState.assignment_info(topologyId, null);
if (assignment == null) {
LOG.error("Failed to get assignment of " + topologyId);
continue;
}
assignments.put(topologyId, assignment);
String group = "default";
if (data.isGroupMode()) group = base.getGroup();
if (group == null) group = "default";
TopologySummary topology =
NimbusUtils.mkTopologySummary(
assignment,
topologyId,
base.getStormName(),
base.getStatusString(),
TimeUtils.time_delta(base.getLanchTimeSecs()),
group);
topologySummaries.add(topology);
}
// all supervisors
Map<String, SupervisorInfo> supervisorInfos =
Cluster.allSupervisorInfo(stormClusterState, null);
// generate SupervisorSummaries
List<SupervisorSummary> supervisorSummaries =
NimbusUtils.mkSupervisorSummaries(supervisorInfos, assignments);
return new ClusterSummary(
supervisorSummaries,
uptime,
topologySummaries,
data.getGroupToTopology(),
data.getGroupToResource(),
data.getGroupToUsedResource(),
data.isGroupMode());
} catch (TException e) {
LOG.info("Failed to get ClusterSummary ", e);
throw e;
} catch (Exception e) {
LOG.info("Failed to get ClusterSummary ", e);
throw new TException(e);
}
}