Examples of org.apache.helix.HelixDataAccessor.removeProperty()

Class org.apache.helix.HelixDataAccessor

Examples of org.apache.helix.HelixDataAccessor.removeProperty()

org.apache.helix.HelixDataAccessor.removeProperty()
Removes the property @param key @return true if removal was successful or node does not exist. false if thenode existed and failed to remove it

                  "Error occurred while trying to clean up job %s. Failed to remove node %s from Helix. Aborting further clean up steps.",
                  resourceName, propStoreKey));
    }
    // Finally, delete the ideal state itself.
    PropertyKey isKey = getISPropertyKey(accessor, resourceName);
    if (!accessor.removeProperty(isKey)) {
      throw new RuntimeException(String.format(
          "Error occurred while trying to clean up task %s. Failed to remove node %s from Helix.",
          resourceName, isKey));
    }
    LOG.info(String.format("Successfully cleaned up job resource %s.", resourceName));

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    // clean up workflow-level info if this was the last in workflow
    if (lastInWorkflow && cfg.isTerminable()) {
      // delete workflow config
      PropertyKey workflowCfgKey = getConfigPropertyKey(accessor, workflowResource);
      if (!accessor.removeProperty(workflowCfgKey)) {
        throw new RuntimeException(
            String
                .format(
                    "Error occurred while trying to clean up workflow %s. Failed to remove node %s from Helix. Aborting further clean up steps.",
                    workflowResource, workflowCfgKey));

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    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    if (enabled) {
      accessor.removeProperty(keyBuilder.pause());
    } else {
      accessor.createProperty(keyBuilder.pause(), new PauseSignal("pause"));
    }
  }

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  public void dropResource(String clusterName, String resourceName) {
    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    accessor.removeProperty(keyBuilder.idealStates(resourceName));
    accessor.removeProperty(keyBuilder.resourceConfig(resourceName));
  }


  @Override
  public List<String> getStateModelDefs(String clusterName) {

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    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    accessor.removeProperty(keyBuilder.idealStates(resourceName));
    accessor.removeProperty(keyBuilder.resourceConfig(resourceName));
  }


  @Override
  public List<String> getStateModelDefs(String clusterName) {
    return _zkClient.getChildren(HelixUtil.getStateModelDefinitionPath(clusterName));

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      // nop messages are simply removed. It is used to trigger onMessage() in
      // situations such as register a new message handler factory
      if (message.getMsgType().equalsIgnoreCase(MessageType.NO_OP.toString())) {
        LOG.info("Dropping NO-OP message. mid: " + message.getId() + ", from: "
            + message.getMsgSrc());
        accessor.removeProperty(message.getKey(keyBuilder, instanceName));
        continue;
      }


      String tgtSessionId = message.getTgtSessionId();

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        String warningMessage =
            "SessionId does NOT match. expected sessionId: " + sessionId
                + ", tgtSessionId in message: " + tgtSessionId + ", messageId: "
                + message.getMsgId();
        LOG.warn(warningMessage);
        accessor.removeProperty(message.getKey(keyBuilder, instanceName));
        _statusUpdateUtil.logWarning(message, HelixStateMachineEngine.class, warningMessage,
            accessor);
        continue;
      }

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            "Failed to create message handler for " + message.getMsgId() + ", exception: " + e;


        _statusUpdateUtil.logError(message, HelixStateMachineEngine.class, e, error, accessor);


        message.setMsgState(MessageState.UNPROCESSABLE);
        accessor.removeProperty(message.getKey(keyBuilder, instanceName));
        LOG.error("Message cannot be processed: " + message.getRecord(), e);


        continue;
      }

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    // remove dead external-views
    for (String resourceName : curExtViews.keySet()) {
      if (!resourceMap.keySet().contains(resourceName)) {
        LOG.info("Remove externalView for resource: " + resourceName);
        dataAccessor.removeProperty(keyBuilder.externalView(resourceName));
      }
    }


    long endTime = System.currentTimeMillis();
    LOG.info("END ExternalViewComputeStage.process(). took: " + (endTime - startTime) + " ms");

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    }


    // remove dead external-views
    for (String resourceName : curExtViews.keySet()) {
        if (!resourceMap.keySet().contains(resourceName)) {
            dataAccessor.removeProperty(keyBuilder.externalView(resourceName));
        }
    }


    long endTime = System.currentTimeMillis();
    log.info("END ExternalViewComputeStage.process(). took: " + (endTime - startTime)

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