Examples with UserRequestException com.linkedin.kafka.cruisecontrol.servlet.UserRequestException used on opensource projects

Example 11 with UserRequestException

use of com.linkedin.kafka.cruisecontrol.servlet.UserRequestException in project cruise-control by linkedin.

the class ParameterUtils method topicPatternByReplicationFactorFromBody.

@SuppressWarnings("unchecked")
private static Map<Short, Pattern> topicPatternByReplicationFactorFromBody(HttpServletRequest request) {
    Map<Short, Pattern> topicPatternByReplicationFactor;
    try {
        Gson gson = new Gson();
        Map<String, Object> json = gson.fromJson(request.getReader(), Map.class);
        if (json == null) {
            return null;
        }
        String replicationFactorKey = REPLICATION_FACTOR.name().toLowerCase();
        if (!json.containsKey(replicationFactorKey)) {
            return null;
        }
        Map<String, Object> replicationFactorParams = (Map<String, Object>) json.get(replicationFactorKey);
        if (!replicationFactorParams.containsKey(TOPIC_BY_REPLICATION_FACTOR)) {
            return null;
        }
        topicPatternByReplicationFactor = new HashMap<>();
        for (Map.Entry<String, String> entry : ((Map<String, String>) replicationFactorParams.get(TOPIC_BY_REPLICATION_FACTOR)).entrySet()) {
            short replicationFactor = Short.parseShort(entry.getKey().trim());
            Pattern topicPattern = Pattern.compile(entry.getValue().trim());
            topicPatternByReplicationFactor.putIfAbsent(replicationFactor, topicPattern);
        }
    } catch (IOException ioe) {
        throw new UserRequestException(String.format("Illegal value for field %s in body, please specify in pairs of \"target replication " + "factor\" : \"topic name regex\".", TOPIC_BY_REPLICATION_FACTOR));
    }
    return topicPatternByReplicationFactor;
}

Example 12 with UserRequestException

use of com.linkedin.kafka.cruisecontrol.servlet.UserRequestException in project cruise-control by linkedin.

the class ParameterUtils method endPoint.

/**
 * @param request The Http request.
 * @return The endpoint specified in the given request.
 */
public static CruiseControlEndPoint endPoint(HttpServletRequest request) {
    List<CruiseControlEndPoint> supportedEndpoints;
    switch(request.getMethod()) {
        case GET_METHOD:
            supportedEndpoints = CruiseControlEndPoint.getEndpoints();
            break;
        case POST_METHOD:
            supportedEndpoints = CruiseControlEndPoint.postEndpoints();
            break;
        default:
            throw new UserRequestException("Unsupported request method: " + request.getMethod() + ".");
    }
    String pathInfo = request.getPathInfo();
    if (pathInfo == null) {
        // URL does not have any extra path information
        return null;
    }
    // Skip the first character '/'
    String path = pathInfo.substring(1);
    for (CruiseControlEndPoint endPoint : supportedEndpoints) {
        if (endPoint.toString().equalsIgnoreCase(path)) {
            return endPoint;
        }
    }
    return null;
}

Example 13 with UserRequestException

use of com.linkedin.kafka.cruisecontrol.servlet.UserRequestException in project cruise-control by linkedin.

the class ParameterUtils method topicPatternByReplicationFactor.

static Map<Short, Pattern> topicPatternByReplicationFactor(HttpServletRequest request) {
    Pattern topic = topic(request);
    Short replicationFactor = replicationFactor(request);
    Map<Short, Pattern> topicPatternByReplicationFactorFromBody = topicPatternByReplicationFactorFromBody(request);
    if (topicPatternByReplicationFactorFromBody != null) {
        if (topic != null || replicationFactor != null) {
            throw new UserRequestException("Requesting topic replication factor change from both HTTP request parameter and body" + " is forbidden.");
        }
        return topicPatternByReplicationFactorFromBody;
    } else {
        if (topic == null && replicationFactor != null) {
            throw new UserRequestException("Topic is not specified in URL while target replication factor is specified.");
        }
        if ((topic != null && replicationFactor == null)) {
            throw new UserRequestException("Topic's replication factor is not specified in URL while subject topic is specified.");
        }
        if (topic != null) {
            return Collections.singletonMap(replicationFactor, topic);
        }
    }
    return Collections.emptyMap();
}

Example 14 with UserRequestException

use of com.linkedin.kafka.cruisecontrol.servlet.UserRequestException in project cruise-control by linkedin.

the class ParameterUtils method maxPartitionMovements.

/**
 * Get the max inter broker partition movements requirement dynamically set from the Http request.
 *
 * @param request The HTTP Request
 * @return The execution upper bound requirement dynamically set from the Http request.
 */
static Integer maxPartitionMovements(HttpServletRequest request) {
    String parameterString = caseSensitiveParameterName(request.getParameterMap(), MAX_PARTITION_MOVEMENTS_IN_CLUSTER_PARAM);
    if (parameterString == null) {
        return null;
    }
    int maxPartitionMovements = Integer.parseInt(request.getParameter(parameterString));
    if (maxPartitionMovements <= 0) {
        throw new UserRequestException("The requested max partition movement must be positive (Requested: " + maxPartitionMovements + ").");
    }
    return maxPartitionMovements;
}

Example 15 with UserRequestException

use of com.linkedin.kafka.cruisecontrol.servlet.UserRequestException in project cruise-control by linkedin.

the class PartitionLoadParameters method initParameters.

@Override
protected void initParameters() throws UnsupportedEncodingException {
    super.initParameters();
    String resourceString = ParameterUtils.resourceString(_request);
    try {
        _resource = Resource.valueOf(resourceString.toUpperCase());
    } catch (IllegalArgumentException iae) {
        throw new UserRequestException(String.format("Invalid resource type %s. The resource type must be one of the " + "following: CPU, DISK, NW_IN, NW_OUT", resourceString));
    }
    _wantMaxLoad = ParameterUtils.wantMaxLoad(_request);
    _wantAvgLoad = ParameterUtils.wantAvgLoad(_request);
    if (_wantMaxLoad && _wantAvgLoad) {
        throw new UserRequestException("Parameters to ask for max and avg load are mutually exclusive to each other.");
    }
    _topic = ParameterUtils.topic(_request);
    _partitionLowerBoundary = ParameterUtils.partitionBoundary(_request, false);
    _partitionUpperBoundary = ParameterUtils.partitionBoundary(_request, true);
    _entries = ParameterUtils.entries(_request);
    _minValidPartitionRatio = ParameterUtils.minValidPartitionRatio(_request);
    _allowCapacityEstimation = ParameterUtils.allowCapacityEstimation(_request);
    _brokerIds = ParameterUtils.brokerIds(_request, true);
    _startMs = ParameterUtils.startMsOrDefault(_request, ParameterUtils.DEFAULT_START_TIME_FOR_CLUSTER_MODEL);
    _endMs = ParameterUtils.endMsOrDefault(_request, System.currentTimeMillis());
    ParameterUtils.validateTimeRange(_startMs, _endMs);
}