Package org.restlet.resource

Examples of org.restlet.resource.StringRepresentation

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  }

  @Override
  public Representation represent(Variant variant)
  {
    StringRepresentation presentation = null;
    try
    {
      String clusterName = (String) getRequest().getAttributes().get("clusterName");
      String instanceName = (String) getRequest().getAttributes().get("instanceName");
      String resourceGroup = (String) getRequest().getAttributes().get("resourceName");

      presentation =
          getInstanceStatusUpdateRepresentation(
                                                clusterName,
                                                instanceName,
                                                resourceGroup);
    }
    catch (Exception e)
    {
      String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
      presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);

      LOG.error("", e);
    }
    return presentation;
  }
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                                                                                                   resourceGroup),
                                                                  // instanceSessionId
                                                                  // + "__"
                                                                  // + resourceGroup,
                                                                  MediaType.APPLICATION_JSON);
    StringRepresentation representation =
        new StringRepresentation(message, MediaType.APPLICATION_JSON);
    return representation;
  }
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    return (String) getRequest().getAttributes().get(key);
  }

  StringRepresentation getConfigScopes() throws Exception
  {
    StringRepresentation representation = null;
    ZNRecord record = new ZNRecord("Config");

    List<String> scopeList =
        Arrays.asList(ConfigScopeProperty.CLUSTER.toString(),
                      ConfigScopeProperty.RESOURCE.toString(),
                      ConfigScopeProperty.PARTICIPANT.toString(),
                      ConfigScopeProperty.PARTITION.toString());
    record.setListField("scopes", scopeList);

    representation =
        new StringRepresentation(ClusterRepresentationUtil.ZNRecordToJson(record),
                                 MediaType.APPLICATION_JSON);

    return representation;
  }
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    return representation;
  }

  StringRepresentation getConfigKeys(ConfigScopeProperty scopeProperty, String... keys) throws Exception
  {
    StringRepresentation representation = null;
    String clusterName = getValue("clusterName");

    ZkClient zkClient =
        (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
    ClusterSetup setupTool = new ClusterSetup(zkClient);
    HelixAdmin admin = setupTool.getClusterManagementTool();
    ZNRecord record = new ZNRecord(scopeProperty + " Config");

    List<String> configKeys = admin.getConfigKeys(scopeProperty, clusterName, keys);
    record.setListField(scopeProperty.toString(), configKeys);

    representation =
        new StringRepresentation(ClusterRepresentationUtil.ZNRecordToJson(record),
                                 MediaType.APPLICATION_JSON);

    return representation;
  }
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  StringRepresentation getConfigs(ConfigScope scope,
                                  ConfigScopeProperty scopeProperty,
                                  String... keys) throws Exception
  {
    StringRepresentation representation = null;
    String clusterName = getValue("clusterName");

    ZkClient zkClient =
        (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
    ClusterSetup setupTool = new ClusterSetup(zkClient);
    HelixAdmin admin = setupTool.getClusterManagementTool();
    ZNRecord record = new ZNRecord(scopeProperty + " Config");

    List<String> configKeys = admin.getConfigKeys(scopeProperty, clusterName, keys);
    Map<String, String> configs = admin.getConfig(scope, new HashSet<String>(configKeys));
    record.setSimpleFields(configs);

    representation =
        new StringRepresentation(ClusterRepresentationUtil.ZNRecordToJson(record),
                                 MediaType.APPLICATION_JSON);

    return representation;
  }
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  }

  @Override
  public Representation represent(Variant variant)
  {
    StringRepresentation representation = null;

    String clusterName = getValue("clusterName");
    String scopeStr = getValue("scope");
    try
    {
      if (scopeStr == null)
      {
        // path is "/clusters/{clusterName}/configs"
        return getConfigScopes();
      }

      scopeStr = scopeStr.toUpperCase();

      ConfigScopeProperty scopeProperty = ConfigScopeProperty.valueOf(scopeStr);
      switch (scopeProperty)
      {
      case CLUSTER:
      case PARTICIPANT:
      case RESOURCE:
        String scopeKey1 = getValue("scopeKey1");
        if (scopeKey1 == null)
        {
          // path is "/clusters/{clusterName}/configs/cluster|participant|resource"
          representation = getConfigKeys(scopeProperty);
        }
        else
        {
          // path is "/clusters/{clusterName}/configs/cluster|particicpant|resource/
          // {clusterName}|{participantName}|{resourceName}"
          ConfigScope scope;
          if (scopeProperty == ConfigScopeProperty.CLUSTER)
          {
            scope = new ConfigScopeBuilder().build(scopeProperty, clusterName);
          }
          else
          {
            scope = new ConfigScopeBuilder().build(scopeProperty, clusterName, scopeKey1);
          }
          representation = getConfigs(scope, scopeProperty, scopeKey1);
        }
        break;
      case PARTITION:
        scopeKey1 = getValue("scopeKey1");
        String scopeKey2 = getValue("scopeKey2");
        if (scopeKey1 == null)
        {
          // path is "/clusters/{clusterName}/configs/partition"
          throw new HelixException("Missing resourceName");
        }
        else if (scopeKey2 == null)
        {
          // path is "/clusters/{clusterName}/configs/partition/resourceName"
          representation = getConfigKeys(scopeProperty, scopeKey1);
        }
        else
        {
          // path is
          // "/clusters/{clusterName}/configs/partition/resourceName/partitionName"
          ConfigScope scope =
              new ConfigScopeBuilder().build(scopeProperty,
                                             clusterName,
                                             scopeKey1,
                                             scopeKey2);
          representation = getConfigs(scope, scopeProperty, scopeKey1, scopeKey2);
        }
        break;
      default:
        break;
      }
    }
    catch (Exception e)
    {
      String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
      representation = new StringRepresentation(error, MediaType.APPLICATION_JSON);
      LOG.error("", e);
    }

    return representation;
  }
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  }

  @Override
  public Representation represent(Variant variant)
  {
    StringRepresentation presentation = null;
    try
    {
      String clusterName = (String) getRequest().getAttributes().get("clusterName");
      String instanceName = (String) getRequest().getAttributes().get("instanceName");
      String resourceGroup = (String) getRequest().getAttributes().get("resourceName");

      presentation =
          getInstanceErrorsRepresentation(clusterName,
                                          instanceName,
                                          resourceGroup);
    }
    catch (Exception e)
    {
      String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
      presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);

      LOG.error("", e);
    }
    return presentation;
  }
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                                                                                                 resourceGroup),
                                                                // instanceSessionId
                                                                // + "__"
                                                                // + resourceGroup,
                                                                MediaType.APPLICATION_JSON);
    StringRepresentation representation =
        new StringRepresentation(message, MediaType.APPLICATION_JSON);
    return representation;
  }
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  }

  @Override
  public Representation represent(Variant variant)
  {
    StringRepresentation presentation = null;
    try
    {
      String clusterName = (String) getRequest().getAttributes().get("clusterName");
      String resourceName = (String) getRequest().getAttributes().get("resourceName");
      presentation = getIdealStateRepresentation(clusterName, resourceName);
    }

    catch (Exception e)
    {
      String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
      presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);

      LOG.error("", e);
    }
    return presentation;
  }
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        ClusterRepresentationUtil.getClusterPropertyAsString(zkClient,
                                                             clusterName,
                                                             keyBuilder.idealStates(resourceName),
                                                             MediaType.APPLICATION_JSON);

    StringRepresentation representation =
        new StringRepresentation(message, MediaType.APPLICATION_JSON);

    return representation;
  }
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Related Classes of org.restlet.resource.StringRepresentation

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  • com.linkedin.helix.webapp.resources.ClusterResource
  • com.linkedin.helix.webapp.resources.ClustersResource
  • com.linkedin.helix.webapp.resources.ConfigResource
  • com.linkedin.helix.webapp.resources.ControllerResource
  • com.linkedin.helix.webapp.resources.ControllerStatusUpdateResource
  • com.linkedin.helix.webapp.resources.CurrentStateResource
  • com.linkedin.helix.webapp.resources.CurrentStatesResource
  • com.linkedin.helix.webapp.resources.ErrorResource
  • com.linkedin.helix.webapp.resources.ErrorsResource
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