Examples of org.apache.ambari.server.state.State

org.apache.ambari.server.state.State

    }


    // TODO support search on predicates?


    boolean checkDesiredState = false;
    State desiredStateToCheck = null;
    if (request.getDesiredState() != null
        && !request.getDesiredState().isEmpty()) {
      desiredStateToCheck = State.valueOf(request.getDesiredState());
      if (!desiredStateToCheck.isValidDesiredState()) {
        throw new IllegalArgumentException("Invalid arguments, invalid desired"
            + " state, desiredState=" + desiredStateToCheck);
      }
      checkDesiredState = true;
    }

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      }
      serviceNames.get(request.getClusterName()).add(request.getServiceName());


      Cluster cluster = clusters.getCluster(request.getClusterName());
      Service s = cluster.getService(request.getServiceName());
      State oldState = s.getDesiredState();
      State newState = null;
      if (request.getDesiredState() != null) {
        newState = State.valueOf(request.getDesiredState());
        if (!newState.isValidDesiredState()) {
          throw new IllegalArgumentException("Invalid arguments, invalid"
              + " desired state, desiredState=" + newState);
        }
      }
      
      if (null != request.getMaintenanceState()) {
        MaintenanceState newMaint = MaintenanceState.valueOf(request.getMaintenanceState());
        if (newMaint  != s.getMaintenanceState()) {
          if (newMaint.equals(MaintenanceState.IMPLIED_FROM_HOST)
              || newMaint.equals(MaintenanceState.IMPLIED_FROM_SERVICE)) {
            throw new IllegalArgumentException("Invalid arguments, can only set " +
              "maintenance state to one of " + EnumSet.of(MaintenanceState.OFF, MaintenanceState.ON));
          } else {
            s.setMaintenanceState(newMaint);
            
            maintenanceClusters.add(cluster.getClusterName());
          }
        }
      }


      if (newState == null) {
        if (LOG.isDebugEnabled()) {
          LOG.debug("Nothing to do for new updateService request"
              + ", clusterName=" + request.getClusterName()
              + ", serviceName=" + request.getServiceName()
              + ", newDesiredState=null");
        }
        continue;
      }
      
      if (requests.size() > 1 && MaintenanceState.OFF != s.getMaintenanceState()) {
        LOG.info("Operations cannot be applied to service " + s.getName() +
            " in the maintenance state of " + s.getMaintenanceState());
        continue;
      }
      


      seenNewStates.add(newState);


      if (newState != oldState) {
        if (!State.isValidDesiredStateTransition(oldState, newState)) {
          throw new AmbariException("Invalid transition for"
              + " service"
              + ", clusterName=" + cluster.getClusterName()
              + ", clusterId=" + cluster.getClusterId()
              + ", serviceName=" + s.getName()
              + ", currentDesiredState=" + oldState
              + ", newDesiredState=" + newState);


        }
        if (!changedServices.containsKey(newState)) {
          changedServices.put(newState, new ArrayList<Service>());
        }
        changedServices.get(newState).add(s);
      }


      // TODO should we check whether all servicecomponents and
      // servicecomponenthosts are in the required desired state?


      for (ServiceComponent sc : s.getServiceComponents().values()) {
        State oldScState = sc.getDesiredState();
        if (newState != oldScState) {
          if (sc.isClientComponent() &&
              !newState.isValidClientComponentState()) {
            continue;
          }
          if (!State.isValidDesiredStateTransition(oldScState, newState)) {
            throw new AmbariException("Invalid transition for"
                + " servicecomponent"
                + ", clusterName=" + cluster.getClusterName()
                + ", clusterId=" + cluster.getClusterId()
                + ", serviceName=" + sc.getServiceName()
                + ", componentName=" + sc.getName()
                + ", currentDesiredState=" + oldScState
                + ", newDesiredState=" + newState);
          }
          if (!changedComps.containsKey(newState)) {
            changedComps.put(newState, new ArrayList<ServiceComponent>());
          }
          changedComps.get(newState).add(sc);
        }
        if (LOG.isDebugEnabled()) {
          LOG.debug("Handling update to ServiceComponent"
              + ", clusterName=" + request.getClusterName()
              + ", serviceName=" + s.getName()
              + ", componentName=" + sc.getName()
              + ", currentDesiredState=" + oldScState
              + ", newDesiredState=" + newState);
        }


        for (ServiceComponentHost sch : sc.getServiceComponentHosts().values()) {
          State oldSchState = sch.getState();
          if (oldSchState == State.DISABLED || oldSchState == State.UNKNOWN) {
            //Ignore host components updates in this state
            if (LOG.isDebugEnabled()) {
              LOG.debug("Ignoring ServiceComponentHost"
                  + ", clusterName=" + request.getClusterName()

View Full Code Here


    ServiceState serviceState = serviceStateMap.get(serviceName);
    if (serviceState == null) {
      serviceState = DEFAULT_SERVICE_STATE;
    }
    State state = serviceState.getState(getManagementController(), clusterName, serviceName);


    return state.toString();
  }

View Full Code Here

   */
  private boolean isValidStateTransition(RequestStageContainer stages, State startState,
                                         State desiredState, ServiceComponentHost host) {


    if (stages != null) {
      State projectedState = stages.getProjectedState(host.getHostName(), host.getServiceComponentName());
      startState = projectedState == null ? startState : projectedState;
    }


    return State.isValidStateTransition(startState, desiredState);
  }

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                serviceName, null, null, null);


            Set<ServiceComponentHostResponse> hostComponentResponses =
                controller.getHostComponents(Collections.singleton(request));


            State   masterState = null;
            State   clientState = null;
            State   otherState = null;


            boolean hasDisabled  = false;
            boolean hasMaster    = false;
            boolean hasOther     = false;
            boolean hasClient    = false;


            for (ServiceComponentHostResponse hostComponentResponse : hostComponentResponses ) {
              ComponentInfo componentInfo = ambariMetaInfo.getComponentCategory(stackId.getStackName(),
                  stackId.getStackVersion(), hostComponentResponse.getServiceName(),
                  hostComponentResponse.getComponentName());


              if (componentInfo != null) {
                State state = getHostComponentState(hostComponentResponse);


                if (state.equals(State.DISABLED)) {
                  hasDisabled = true;
                } else {
                  if (componentInfo.isMaster()) {
                    hasMaster = true;
                    if(!state.equals(State.STARTED) &&
                        ( masterState == null || state.ordinal() > masterState.ordinal())) {
                      masterState = state;
                    }
                  } else if (componentInfo.isClient()) {
                    hasClient = true;
                    if (!state.equals(State.INSTALLED) &&
                        (clientState == null || state.ordinal() > clientState.ordinal())) {
                      clientState = state;
                    }
                  } else {
                    hasOther  = true;
                    if (otherState == null || state.ordinal() > otherState.ordinal()) {
                      otherState = state;
                    }
                  }
                }
              }

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      }
      serviceNames.get(request.getClusterName()).add(request.getServiceName());


      if (request.getDesiredState() != null
          && !request.getDesiredState().isEmpty()) {
        State state = State.valueOf(request.getDesiredState());
        if (!state.isValidDesiredState()
            || state != State.INIT) {
          throw new IllegalArgumentException("Invalid desired state"
              + " only INIT state allowed during creation"
              + ", providedDesiredState=" + request.getDesiredState());
        }
      }


      Cluster cluster;
      try {
        cluster = clusters.getCluster(request.getClusterName());
      } catch (ClusterNotFoundException e) {
        throw new ParentObjectNotFoundException("Attempted to add a service to a cluster which doesn't exist", e);
      }
      try {
        Service s = cluster.getService(request.getServiceName());
        if (s != null) {
          // throw error later for dup
          duplicates.add(request.getServiceName());
          continue;
        }
      } catch (ServiceNotFoundException e) {
        // Expected
      }


      StackId stackId = cluster.getDesiredStackVersion();
      if (!ambariMetaInfo.isValidService(stackId.getStackName(),
          stackId.getStackVersion(), request.getServiceName())) {
        throw new IllegalArgumentException("Unsupported or invalid service"
            + " in stack"
            + ", clusterName=" + request.getClusterName()
            + ", serviceName=" + request.getServiceName()
            + ", stackInfo=" + stackId.getStackId());
      }
    }


    // ensure only a single cluster update
    if (serviceNames.size() != 1) {
      throw new IllegalArgumentException("Invalid arguments, updates allowed"
          + "on only one cluster at a time");
    }


    // Validate dups
    if (!duplicates.isEmpty()) {
      StringBuilder svcNames = new StringBuilder();
      boolean first = true;
      for (String svcName : duplicates) {
        if (!first) {
          svcNames.append(",");
        }
        first = false;
        svcNames.append(svcName);
      }
      String clusterName = requests.iterator().next().getClusterName();
      String msg;
      if (duplicates.size() == 1) {
        msg = "Attempted to create a service which already exists: "
            + ", clusterName=" + clusterName  + " serviceName=" + svcNames.toString();
      } else {
        msg = "Attempted to create services which already exist: "
            + ", clusterName=" + clusterName  + " serviceNames=" + svcNames.toString();
      }
      throw new DuplicateResourceException(msg);
    }


    // now to the real work
    for (ServiceRequest request : requests) {
      Cluster cluster = clusters.getCluster(request.getClusterName());


      // FIXME initialize configs based off service.configVersions
      Map<String, Config> configs = new HashMap<String, Config>();


      State state = State.INIT;


      // Already checked that service does not exist
      Service s = serviceFactory.createNew(cluster, request.getServiceName());


      s.setDesiredState(state);

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      componentNames.get(request.getClusterName())
          .get(request.getServiceName()).add(request.getComponentName());


      if (request.getDesiredState() != null
          && !request.getDesiredState().isEmpty()) {
        State state = State.valueOf(request.getDesiredState());
        if (!state.isValidDesiredState()
            || state != State.INIT) {
          throw new IllegalArgumentException("Invalid desired state"
              + " only INIT state allowed during creation"
              + ", providedDesiredState=" + request.getDesiredState());
        }
      }


      Service s;
      try {
        s = cluster.getService(request.getServiceName());
      } catch (ServiceNotFoundException e) {
        throw new ParentObjectNotFoundException(
            "Attempted to add a component to a service which doesn't exist:", e);
      }
      try {
        ServiceComponent sc = s.getServiceComponent(request.getComponentName());
        if (sc != null) {
          // throw error later for dup
          duplicates.add("[clusterName=" + request.getClusterName() + ", serviceName=" + request.getServiceName() +
              ", componentName=" + request.getComponentName() + "]");
          continue;
        }
      } catch (AmbariException e) {
        // Expected
      }


      StackId stackId = s.getDesiredStackVersion();
      if (!ambariMetaInfo.isValidServiceComponent(stackId.getStackName(),
          stackId.getStackVersion(), s.getName(), request.getComponentName())) {
        throw new IllegalArgumentException("Unsupported or invalid component"
            + " in stack"
            + ", clusterName=" + request.getClusterName()
            + ", serviceName=" + request.getServiceName()
            + ", componentName=" + request.getComponentName()
            + ", stackInfo=" + stackId.getStackId());
      }
    }


    // ensure only a single cluster update
    if (componentNames.size() != 1) {
      throw new IllegalArgumentException("Invalid arguments, updates allowed"
          + "on only one cluster at a time");
    }


    // Validate dups
    if (!duplicates.isEmpty()) {
      StringBuilder names = new StringBuilder();
      boolean first = true;
      for (String cName : duplicates) {
        if (!first) {
          names.append(",");
        }
        first = false;
        names.append(cName);
      }
      String msg;
      if (duplicates.size() == 1) {
        msg = "Attempted to create a component which already exists: ";
      } else {
        msg = "Attempted to create components which already exist: ";
      }
      throw new DuplicateResourceException(msg + names.toString());
    }




    // now doing actual work
    for (ServiceComponentRequest request : requests) {
      Cluster cluster = clusters.getCluster(request.getClusterName());
      Service s = cluster.getService(request.getServiceName());
      ServiceComponent sc = serviceComponentFactory.createNew(s,
          request.getComponentName());
      sc.setDesiredStackVersion(s.getDesiredStackVersion());


      if (request.getDesiredState() != null
          && !request.getDesiredState().isEmpty()) {
        State state = State.valueOf(request.getDesiredState());
        sc.setDesiredState(state);
      } else {
        sc.setDesiredState(s.getDesiredState());
      }

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          .get(request.getServiceName()).get(request.getComponentName())
          .add(request.getHostname());


      if (request.getDesiredState() != null
          && !request.getDesiredState().isEmpty()) {
        State state = State.valueOf(request.getDesiredState());
        if (!state.isValidDesiredState()
            || state != State.INIT) {
          throw new IllegalArgumentException("Invalid desired state"
              + " only INIT state allowed during creation"
              + ", providedDesiredState=" + request.getDesiredState());
        }
      }


      Service s;
      try {
        s = cluster.getService(request.getServiceName());
      } catch (ServiceNotFoundException e) {
        throw new IllegalArgumentException(
            "The service[" + request.getServiceName() + "] associated with the component[" +
            request.getComponentName() + "] doesn't exist for the cluster[" + request.getClusterName() + "]");
      }
      ServiceComponent sc = s.getServiceComponent(
          request.getComponentName());


      Host host;
      try {
        host = clusters.getHost(request.getHostname());
      } catch (HostNotFoundException e) {
        throw new ParentObjectNotFoundException(
            "Attempted to add a host_component to a host that doesn't exist: ", e);
      }
      Set<Cluster> mappedClusters =
          clusters.getClustersForHost(request.getHostname());
      boolean validCluster = false;
      if (LOG.isDebugEnabled()) {
        LOG.debug("Looking to match host to cluster"
            + ", hostnameViaReg=" + host.getHostName()
            + ", hostname=" + request.getHostname()
            + ", clusterName=" + request.getClusterName()
            + ", hostClusterMapCount=" + mappedClusters.size());
      }
      for (Cluster mappedCluster : mappedClusters) {
        if (LOG.isDebugEnabled()) {
          LOG.debug("Host belongs to cluster"
              + ", hostname=" + request.getHostname()
              + ", clusterName=" + mappedCluster.getClusterName());
        }
        if (mappedCluster.getClusterName().equals(
            request.getClusterName())) {
          validCluster = true;
          break;
        }
      }
      if (!validCluster) {
        throw new ParentObjectNotFoundException("Attempted to add a host_component to a host that doesn't exist: " +
            "clusterName=" + request.getClusterName() + ", hostName=" + request.getHostname());
      }
      try {
        ServiceComponentHost sch = sc.getServiceComponentHost(
            request.getHostname());
        if (sch != null) {
          duplicates.add("[clusterName=" + request.getClusterName() + ", hostName=" + request.getHostname() +
              ", componentName=" +request.getComponentName() +']');
          continue;
        }
      } catch (AmbariException e) {
        // Expected
      }
    }


    // ensure only a single cluster update
    if (hostComponentNames.size() != 1) {
      throw new IllegalArgumentException("Invalid arguments - updates allowed"
          + " on only one cluster at a time");
    }


    if (!duplicates.isEmpty()) {
      StringBuilder names = new StringBuilder();
      boolean first = true;
      for (String hName : duplicates) {
        if (!first) {
          names.append(",");
        }
        first = false;
        names.append(hName);
      }
      String msg;
      if (duplicates.size() == 1) {
        msg = "Attempted to create a host_component which already exists: ";
      } else {
        msg = "Attempted to create host_component's which already exist: ";
      }
      throw new DuplicateResourceException(msg + names.toString());
    }


    // now doing actual work
    for (ServiceComponentHostRequest request : requests) {
      Cluster cluster = clusters.getCluster(request.getClusterName());
      Service s = cluster.getService(request.getServiceName());
      ServiceComponent sc = s.getServiceComponent(
          request.getComponentName());


      StackId stackId = sc.getDesiredStackVersion();
      ComponentInfo compInfo = ambariMetaInfo.getComponentCategory(
          stackId.getStackName(), stackId.getStackVersion(),
          s.getName(), sc.getName());
      boolean isClient = compInfo.isClient();


      ServiceComponentHost sch =
          serviceComponentHostFactory.createNew(sc, request.getHostname(),
              isClient);


      if (request.getDesiredState() != null
          && !request.getDesiredState().isEmpty()) {
        State state = State.valueOf(request.getDesiredState());
        sch.setDesiredState(state);
      } 


      sch.setDesiredStackVersion(sc.getDesiredStackVersion());

View Full Code Here

    }


    // TODO support search on predicates?


    boolean checkDesiredState = false;
    State desiredStateToCheck = null;
    if (request.getDesiredState() != null
        && !request.getDesiredState().isEmpty()) {
      desiredStateToCheck = State.valueOf(request.getDesiredState());
      if (!desiredStateToCheck.isValidDesiredState()) {
        throw new IllegalArgumentException("Invalid arguments, invalid desired"
            + " state, desiredState=" + desiredStateToCheck);
      }
      checkDesiredState = true;
    }

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      response.add(sc.convertToResponse());
      return response;
    }


    boolean checkDesiredState = false;
    State desiredStateToCheck = null;
    if (request.getDesiredState() != null
        && !request.getDesiredState().isEmpty()) {
      desiredStateToCheck = State.valueOf(request.getDesiredState());
      if (!desiredStateToCheck.isValidDesiredState()) {
        throw new IllegalArgumentException("Invalid arguments, invalid desired"
            + " state, desiredState=" + desiredStateToCheck);
      }
      checkDesiredState = true;
    }

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