Package org.restlet.representation

Examples of org.restlet.representation.StringRepresentation

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    return "/" + relativeRef;
  }

  @Override
  public Representation get() {
    StringRepresentation presentation = null;
    String zkPath = getZKPath();

    try {
      ZkClient zkClient =
          (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
      ZNRecord result = readZkChild(zkPath, zkClient);

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

      LOG.error("Error in read zkPath: " + zkPath, e);
    }

    return presentation;
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    setNegotiated(false);
  }

  @Override
  public Representation get() {
    StringRepresentation presentation = null;
    try {
      String clusterName = (String) getRequest().getAttributes().get("clusterName");
      String modelName = (String) getRequest().getAttributes().get("modelName");
      presentation = getStateModelRepresentation(clusterName, modelName);
    }

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

      LOG.error("", e);
    }
    return presentation;
  }
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    String message =
        ClusterRepresentationUtil.getClusterPropertyAsString(zkClient, clusterName,
            keyBuilder.stateModelDef(modelName), MediaType.APPLICATION_JSON);

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

    return representation;
  }
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    return null;
  }

  @Override
  public Representation get() {
    StringRepresentation presentation = null;
    String zkPath = getZKPath();

    try {
      ZkClient zkClient =
          (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
      ZNRecord result = readZkDataStatAndChild(zkPath, zkClient);

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

      LOG.error("Error in read zkPath: " + zkPath, e);
    }

    return presentation;
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    setNegotiated(false);
  }

  @Override
  public Representation get() {
    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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            keyBuilder.stateTransitionStatus(instanceName, instanceSessionId, resourceGroup),
            // instanceSessionId
            // + "__"
            // + resourceGroup,
            MediaType.APPLICATION_JSON);
    StringRepresentation representation =
        new StringRepresentation(message, MediaType.APPLICATION_JSON);
    return representation;
  }
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  String getValue(String key) {
    return (String) getRequest().getAttributes().get(key);
  }

  static 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");

    HelixConfigScope scope = new HelixConfigScopeBuilder(scopeProperty, keys).build();
    // List<String> configKeys = admin.getConfigKeys(scopeProperty, clusterName, keys);
    List<String> configKeys = admin.getConfigKeys(scope);
    record.setListField(scopeProperty.toString(), configKeys);

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

    return representation;
  }
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    return representation;
  }

  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");

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

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

    return representation;
  }
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    return representation;
  }

  @Override
  public Representation get() {
    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, clusterName);
        } else {
          // path is "/clusters/{clusterName}/configs/cluster|participant|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(scopeProperty, clusterName, 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, clusterName, scopeKey1);
        } else {
          // path is
          // "/clusters/{clusterName}/configs/partition/resourceName/partitionName"
          // ConfigScope scope =
          // new ConfigScopeBuilder().build(scopeProperty,
          // clusterName,
          // scopeKey1,
          // scopeKey2);
          representation = getConfigs(scopeProperty, clusterName, 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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