public BuildTypeOrTemplate findSingleItem()

in rest-api/src/jetbrains/buildServer/server/rest/data/finder/impl/BuildTypeFinder.java [165:258]
77 lines of code
19 McCabe index (conditional complexity)

  public BuildTypeOrTemplate findSingleItem(@NotNull final Locator locator) {
    if (locator.isSingleValue()) {
      // no dimensions found, assume it's an internal id, external id or name
      final String value = locator.getSingleValue();
      assert value != null;
      BuildTypeOrTemplate buildType = findBuildTypeOrTemplateByInternalId(value, null);
      if (buildType != null) {
        return buildType;
      }

      buildType = findBuildTypeOrTemplateByExternalId(value, null);
      if (buildType != null) {
        return buildType;
      }

      // assume it's a name
      final BuildTypeOrTemplate buildTypeByName = findBuildTypebyName(value, null, null);
      if (buildTypeByName != null) {
        return buildTypeByName;
      }
      throw new NotFoundException("No build type or template is found by id, internal id or name '" + value + "'.");
    }

    String internalId = locator.getSingleDimensionValue(DIMENSION_INTERNAL_ID);
    if (!StringUtil.isEmpty(internalId)) {
      Boolean template = locator.getSingleDimensionValueAsBoolean(TEMPLATE_FLAG_DIMENSION_NAME);
      if (template == null) {
        //legacy support for boolean value
        try {
          template = locator.getSingleDimensionValueAsBoolean(TEMPLATE_DIMENSION_NAME);
        } catch (LocatorProcessException e) {
          //override default message as it might be confusing here due to legacy support
          throw new BadRequestException("Try omitting dimension '" + TEMPLATE_DIMENSION_NAME + "' here");
        }
      }
      BuildTypeOrTemplate buildType = findBuildTypeOrTemplateByInternalId(internalId, template);
      if (buildType != null) {
        return buildType;
      }
      throw new NotFoundException("No " + getName(template) + " is found by internal id '" + internalId + "'.");
    }

    String uuid = locator.getSingleDimensionValue(DIMENSION_UUID);
    if (!StringUtil.isEmpty(uuid)) {
      Boolean template = locator.getSingleDimensionValueAsBoolean(TEMPLATE_FLAG_DIMENSION_NAME);
      BuildTypeOrTemplate buildType = findBuildTypeOrTemplateByUuid(uuid, template);
      if (buildType != null) {
        return buildType;
      }
      //protecting against brute force uuid guessing
      try {
        Thread.sleep(1000);
      } catch (InterruptedException e) {
        //ignore
      }
      throw new NotFoundException("No " + getName(template) + " is found by uuid '" + uuid + "'.");
    }

    String id = locator.getSingleDimensionValue(DIMENSION_ID);
    if (!StringUtil.isEmpty(id)) {
      Boolean template = locator.getSingleDimensionValueAsBoolean(TEMPLATE_FLAG_DIMENSION_NAME);
      if (template == null) {
        //legacy support for boolean value
        try {
          template = locator.getSingleDimensionValueAsBoolean(TEMPLATE_DIMENSION_NAME);
        } catch (LocatorProcessException e) {
          //override default message as it might be confusing here due to legacy support
          throw new BadRequestException("Try omitting dimension '" + TEMPLATE_DIMENSION_NAME + "' here");
        }
      }
      BuildTypeOrTemplate buildType = findBuildTypeOrTemplateByExternalId(id, template);
      if (buildType != null) {
        return buildType;
      }

      // support pre-8.0 style of template ids
      final BuildTypeOrTemplate templateByOldIdWithPrefix = findTemplateByOldIdWithPrefix(id);
      if (templateByOldIdWithPrefix != null) {
        return templateByOldIdWithPrefix;
      }

      if (TeamCityProperties.getBoolean(APIController.REST_COMPATIBILITY_ALLOW_EXTERNAL_ID_AS_INTERNAL)) {
        buildType = findBuildTypeOrTemplateByInternalId(id, template);
        if (buildType != null) {
          return buildType;
        }
        throw new NotFoundException("No " + getName(template) + " is found by id '" + id + "' in compatibility mode." +
                                    " Cannot be found by external or internal id '" + id + "'.");
      }
      throw new NotFoundException("No " + getName(template) + " is found by id '" + id + "'.");
    }

    return null;
  }