Package org.restlet.representation

Examples of org.restlet.representation.StringRepresentation

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    setNegotiated(false);
  }

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

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

      LOG.error("", e);
    }
    return presentation;
  }
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    // Populate the result
    List<String> allResources = Lists.newArrayList(resourceConfigMap.keySet());
    hostedEntitiesRecord.setListField("WorkflowList", allResources);

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

    return representation;
  }
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    return (String) getRequest().getAttributes().get(key);
  }

  @Override
  public Representation get() {
    StringRepresentation representation = null;
    String clusterName = getValue("clusterName");
    String constraintTypeStr = getValue("constraintType").toUpperCase();
    String constraintId = getValue("constraintId");

    try {
      ConstraintType constraintType = ConstraintType.valueOf(constraintTypeStr);
      ZkClient zkClient =
          (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
      // ClusterSetup setupTool = new ClusterSetup(zkClient);
      HelixAdmin admin = new ZKHelixAdmin(zkClient); // setupTool.getClusterManagementTool();

      ZNRecord record = admin.getConstraints(clusterName, constraintType).getRecord();
      if (constraintId == null) {
        // get all message constraints
        representation =
            new StringRepresentation(ClusterRepresentationUtil.ZNRecordToJson(record),
                MediaType.APPLICATION_JSON);
      } else {
        // get a specific constraint
        Map<String, String> constraint = record.getMapField(constraintId);
        if (constraint == null) {
          representation =
              new StringRepresentation("No constraint of type: " + constraintType
                  + " associated with id: " + constraintId, MediaType.APPLICATION_JSON);
        } else {
          ZNRecord subRecord = new ZNRecord(record.getId());
          subRecord.setMapField(constraintId, constraint);
          representation =
              new StringRepresentation(ClusterRepresentationUtil.ZNRecordToJson(subRecord),
                  MediaType.APPLICATION_JSON);
        }
      }
    } catch (IllegalArgumentException e) {
      representation =
          new StringRepresentation("constraint-type: " + constraintTypeStr + " not recognized.",
              MediaType.APPLICATION_JSON);
    } catch (Exception e) {
      String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
      representation = new StringRepresentation(error, MediaType.APPLICATION_JSON);
      LOG.error("", e);
    }

    return representation;
  }
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    boolean paused = (accessor.getProperty(keyBuilder.pause()) == null ? false : true);
    record.setSimpleField(PropertyType.PAUSE.toString(), "" + paused);

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

    return representation;
  }
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    return representation;
  }

  @Override
  public Representation get() {
    StringRepresentation presentation = null;
    try {
      String clusterName = (String) getRequest().getAttributes().get("clusterName");
      presentation = getControllerRepresentation(clusterName);
    } catch (Exception e) {
      String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
      presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);
      e.printStackTrace();
    }
    return presentation;
  }
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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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            sb.append("\"/>");
        }
        sb.append("</form>");
        sb.append("</body>");
        sb.append("</html>");
        return new StringRepresentation(sb.toString(), MediaType.TEXT_HTML);
    }
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