kafka Errors 源码
kafka Errors 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/protocol/Errors.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.kafka.common.protocol;
import org.apache.kafka.common.InvalidRecordException;
import org.apache.kafka.common.errors.ApiException;
import org.apache.kafka.common.errors.BrokerIdNotRegisteredException;
import org.apache.kafka.common.errors.BrokerNotAvailableException;
import org.apache.kafka.common.errors.ClusterAuthorizationException;
import org.apache.kafka.common.errors.ConcurrentTransactionsException;
import org.apache.kafka.common.errors.ControllerMovedException;
import org.apache.kafka.common.errors.CoordinatorLoadInProgressException;
import org.apache.kafka.common.errors.CoordinatorNotAvailableException;
import org.apache.kafka.common.errors.CorruptRecordException;
import org.apache.kafka.common.errors.DelegationTokenAuthorizationException;
import org.apache.kafka.common.errors.DelegationTokenDisabledException;
import org.apache.kafka.common.errors.DelegationTokenExpiredException;
import org.apache.kafka.common.errors.DelegationTokenNotFoundException;
import org.apache.kafka.common.errors.DelegationTokenOwnerMismatchException;
import org.apache.kafka.common.errors.DuplicateBrokerRegistrationException;
import org.apache.kafka.common.errors.DuplicateResourceException;
import org.apache.kafka.common.errors.DuplicateSequenceException;
import org.apache.kafka.common.errors.ElectionNotNeededException;
import org.apache.kafka.common.errors.EligibleLeadersNotAvailableException;
import org.apache.kafka.common.errors.FeatureUpdateFailedException;
import org.apache.kafka.common.errors.FencedInstanceIdException;
import org.apache.kafka.common.errors.FencedLeaderEpochException;
import org.apache.kafka.common.errors.FetchSessionIdNotFoundException;
import org.apache.kafka.common.errors.FetchSessionTopicIdException;
import org.apache.kafka.common.errors.GroupAuthorizationException;
import org.apache.kafka.common.errors.GroupIdNotFoundException;
import org.apache.kafka.common.errors.GroupMaxSizeReachedException;
import org.apache.kafka.common.errors.GroupNotEmptyException;
import org.apache.kafka.common.errors.GroupSubscribedToTopicException;
import org.apache.kafka.common.errors.IllegalGenerationException;
import org.apache.kafka.common.errors.IllegalSaslStateException;
import org.apache.kafka.common.errors.InconsistentGroupProtocolException;
import org.apache.kafka.common.errors.InconsistentTopicIdException;
import org.apache.kafka.common.errors.InconsistentVoterSetException;
import org.apache.kafka.common.errors.InconsistentClusterIdException;
import org.apache.kafka.common.errors.IneligibleReplicaException;
import org.apache.kafka.common.errors.InvalidCommitOffsetSizeException;
import org.apache.kafka.common.errors.InvalidConfigurationException;
import org.apache.kafka.common.errors.InvalidFetchSessionEpochException;
import org.apache.kafka.common.errors.InvalidFetchSizeException;
import org.apache.kafka.common.errors.InvalidGroupIdException;
import org.apache.kafka.common.errors.InvalidPartitionsException;
import org.apache.kafka.common.errors.InvalidPidMappingException;
import org.apache.kafka.common.errors.InvalidPrincipalTypeException;
import org.apache.kafka.common.errors.InvalidProducerEpochException;
import org.apache.kafka.common.errors.InvalidReplicaAssignmentException;
import org.apache.kafka.common.errors.InvalidReplicationFactorException;
import org.apache.kafka.common.errors.InvalidRequestException;
import org.apache.kafka.common.errors.InvalidRequiredAcksException;
import org.apache.kafka.common.errors.InvalidSessionTimeoutException;
import org.apache.kafka.common.errors.InvalidTimestampException;
import org.apache.kafka.common.errors.InvalidTopicException;
import org.apache.kafka.common.errors.InvalidTxnStateException;
import org.apache.kafka.common.errors.InvalidTxnTimeoutException;
import org.apache.kafka.common.errors.InvalidUpdateVersionException;
import org.apache.kafka.common.errors.KafkaStorageException;
import org.apache.kafka.common.errors.LeaderNotAvailableException;
import org.apache.kafka.common.errors.ListenerNotFoundException;
import org.apache.kafka.common.errors.LogDirNotFoundException;
import org.apache.kafka.common.errors.MemberIdRequiredException;
import org.apache.kafka.common.errors.NetworkException;
import org.apache.kafka.common.errors.NewLeaderElectedException;
import org.apache.kafka.common.errors.NoReassignmentInProgressException;
import org.apache.kafka.common.errors.NotControllerException;
import org.apache.kafka.common.errors.NotCoordinatorException;
import org.apache.kafka.common.errors.NotEnoughReplicasAfterAppendException;
import org.apache.kafka.common.errors.NotEnoughReplicasException;
import org.apache.kafka.common.errors.NotLeaderOrFollowerException;
import org.apache.kafka.common.errors.OffsetMetadataTooLarge;
import org.apache.kafka.common.errors.OffsetNotAvailableException;
import org.apache.kafka.common.errors.OffsetOutOfRangeException;
import org.apache.kafka.common.errors.OperationNotAttemptedException;
import org.apache.kafka.common.errors.OutOfOrderSequenceException;
import org.apache.kafka.common.errors.PolicyViolationException;
import org.apache.kafka.common.errors.PositionOutOfRangeException;
import org.apache.kafka.common.errors.PreferredLeaderNotAvailableException;
import org.apache.kafka.common.errors.PrincipalDeserializationException;
import org.apache.kafka.common.errors.ProducerFencedException;
import org.apache.kafka.common.errors.ReassignmentInProgressException;
import org.apache.kafka.common.errors.RebalanceInProgressException;
import org.apache.kafka.common.errors.RecordBatchTooLargeException;
import org.apache.kafka.common.errors.RecordTooLargeException;
import org.apache.kafka.common.errors.ReplicaNotAvailableException;
import org.apache.kafka.common.errors.ResourceNotFoundException;
import org.apache.kafka.common.errors.RetriableException;
import org.apache.kafka.common.errors.SaslAuthenticationException;
import org.apache.kafka.common.errors.SecurityDisabledException;
import org.apache.kafka.common.errors.SnapshotNotFoundException;
import org.apache.kafka.common.errors.StaleBrokerEpochException;
import org.apache.kafka.common.errors.ThrottlingQuotaExceededException;
import org.apache.kafka.common.errors.TimeoutException;
import org.apache.kafka.common.errors.TopicAuthorizationException;
import org.apache.kafka.common.errors.TopicDeletionDisabledException;
import org.apache.kafka.common.errors.TopicExistsException;
import org.apache.kafka.common.errors.TransactionCoordinatorFencedException;
import org.apache.kafka.common.errors.TransactionalIdAuthorizationException;
import org.apache.kafka.common.errors.TransactionalIdNotFoundException;
import org.apache.kafka.common.errors.UnacceptableCredentialException;
import org.apache.kafka.common.errors.UnknownLeaderEpochException;
import org.apache.kafka.common.errors.UnknownMemberIdException;
import org.apache.kafka.common.errors.UnknownProducerIdException;
import org.apache.kafka.common.errors.UnknownServerException;
import org.apache.kafka.common.errors.UnknownTopicIdException;
import org.apache.kafka.common.errors.UnknownTopicOrPartitionException;
import org.apache.kafka.common.errors.UnstableOffsetCommitException;
import org.apache.kafka.common.errors.UnsupportedByAuthenticationException;
import org.apache.kafka.common.errors.UnsupportedCompressionTypeException;
import org.apache.kafka.common.errors.UnsupportedForMessageFormatException;
import org.apache.kafka.common.errors.UnsupportedSaslMechanismException;
import org.apache.kafka.common.errors.UnsupportedVersionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CompletionException;
import java.util.concurrent.ExecutionException;
import java.util.function.Function;
/**
* This class contains all the client-server errors--those errors that must be sent from the server to the client. These
* are thus part of the protocol. The names can be changed but the error code cannot.
*
* Note that client library will convert an unknown error code to the non-retriable UnknownServerException if the client library
* version is old and does not recognize the newly-added error code. Therefore when a new server-side error is added,
* we may need extra logic to convert the new error code to another existing error code before sending the response back to
* the client if the request version suggests that the client may not recognize the new error code.
*
* Do not add exceptions that occur only on the client or only on the server here.
*
* @see org.apache.kafka.common.network.SslTransportLayer
*/
public enum Errors {
UNKNOWN_SERVER_ERROR(-1, "The server experienced an unexpected error when processing the request.",
UnknownServerException::new),
NONE(0, null, message -> null),
OFFSET_OUT_OF_RANGE(1, "The requested offset is not within the range of offsets maintained by the server.",
OffsetOutOfRangeException::new),
CORRUPT_MESSAGE(2, "This message has failed its CRC checksum, exceeds the valid size, has a null key for a compacted topic, or is otherwise corrupt.",
CorruptRecordException::new),
UNKNOWN_TOPIC_OR_PARTITION(3, "This server does not host this topic-partition.",
UnknownTopicOrPartitionException::new),
INVALID_FETCH_SIZE(4, "The requested fetch size is invalid.",
InvalidFetchSizeException::new),
LEADER_NOT_AVAILABLE(5, "There is no leader for this topic-partition as we are in the middle of a leadership election.",
LeaderNotAvailableException::new),
NOT_LEADER_OR_FOLLOWER(6, "For requests intended only for the leader, this error indicates that the broker is not the current leader. " +
"For requests intended for any replica, this error indicates that the broker is not a replica of the topic partition.",
NotLeaderOrFollowerException::new),
REQUEST_TIMED_OUT(7, "The request timed out.",
TimeoutException::new),
BROKER_NOT_AVAILABLE(8, "The broker is not available.",
BrokerNotAvailableException::new),
REPLICA_NOT_AVAILABLE(9, "The replica is not available for the requested topic-partition. Produce/Fetch requests and other requests " +
"intended only for the leader or follower return NOT_LEADER_OR_FOLLOWER if the broker is not a replica of the topic-partition.",
ReplicaNotAvailableException::new),
MESSAGE_TOO_LARGE(10, "The request included a message larger than the max message size the server will accept.",
RecordTooLargeException::new),
STALE_CONTROLLER_EPOCH(11, "The controller moved to another broker.",
ControllerMovedException::new),
OFFSET_METADATA_TOO_LARGE(12, "The metadata field of the offset request was too large.",
OffsetMetadataTooLarge::new),
NETWORK_EXCEPTION(13, "The server disconnected before a response was received.",
NetworkException::new),
COORDINATOR_LOAD_IN_PROGRESS(14, "The coordinator is loading and hence can't process requests.",
CoordinatorLoadInProgressException::new),
COORDINATOR_NOT_AVAILABLE(15, "The coordinator is not available.",
CoordinatorNotAvailableException::new),
NOT_COORDINATOR(16, "This is not the correct coordinator.",
NotCoordinatorException::new),
INVALID_TOPIC_EXCEPTION(17, "The request attempted to perform an operation on an invalid topic.",
InvalidTopicException::new),
RECORD_LIST_TOO_LARGE(18, "The request included message batch larger than the configured segment size on the server.",
RecordBatchTooLargeException::new),
NOT_ENOUGH_REPLICAS(19, "Messages are rejected since there are fewer in-sync replicas than required.",
NotEnoughReplicasException::new),
NOT_ENOUGH_REPLICAS_AFTER_APPEND(20, "Messages are written to the log, but to fewer in-sync replicas than required.",
NotEnoughReplicasAfterAppendException::new),
INVALID_REQUIRED_ACKS(21, "Produce request specified an invalid value for required acks.",
InvalidRequiredAcksException::new),
ILLEGAL_GENERATION(22, "Specified group generation id is not valid.",
IllegalGenerationException::new),
INCONSISTENT_GROUP_PROTOCOL(23,
"The group member's supported protocols are incompatible with those of existing members " +
"or first group member tried to join with empty protocol type or empty protocol list.",
InconsistentGroupProtocolException::new),
INVALID_GROUP_ID(24, "The configured groupId is invalid.",
InvalidGroupIdException::new),
UNKNOWN_MEMBER_ID(25, "The coordinator is not aware of this member.",
UnknownMemberIdException::new),
INVALID_SESSION_TIMEOUT(26,
"The session timeout is not within the range allowed by the broker " +
"(as configured by group.min.session.timeout.ms and group.max.session.timeout.ms).",
InvalidSessionTimeoutException::new),
REBALANCE_IN_PROGRESS(27, "The group is rebalancing, so a rejoin is needed.",
RebalanceInProgressException::new),
INVALID_COMMIT_OFFSET_SIZE(28, "The committing offset data size is not valid.",
InvalidCommitOffsetSizeException::new),
TOPIC_AUTHORIZATION_FAILED(29, "Topic authorization failed.", TopicAuthorizationException::new),
GROUP_AUTHORIZATION_FAILED(30, "Group authorization failed.", GroupAuthorizationException::new),
CLUSTER_AUTHORIZATION_FAILED(31, "Cluster authorization failed.",
ClusterAuthorizationException::new),
INVALID_TIMESTAMP(32, "The timestamp of the message is out of acceptable range.",
InvalidTimestampException::new),
UNSUPPORTED_SASL_MECHANISM(33, "The broker does not support the requested SASL mechanism.",
UnsupportedSaslMechanismException::new),
ILLEGAL_SASL_STATE(34, "Request is not valid given the current SASL state.",
IllegalSaslStateException::new),
UNSUPPORTED_VERSION(35, "The version of API is not supported.",
UnsupportedVersionException::new),
TOPIC_ALREADY_EXISTS(36, "Topic with this name already exists.",
TopicExistsException::new),
INVALID_PARTITIONS(37, "Number of partitions is below 1.",
InvalidPartitionsException::new),
INVALID_REPLICATION_FACTOR(38, "Replication factor is below 1 or larger than the number of available brokers.",
InvalidReplicationFactorException::new),
INVALID_REPLICA_ASSIGNMENT(39, "Replica assignment is invalid.",
InvalidReplicaAssignmentException::new),
INVALID_CONFIG(40, "Configuration is invalid.",
InvalidConfigurationException::new),
NOT_CONTROLLER(41, "This is not the correct controller for this cluster.",
NotControllerException::new),
INVALID_REQUEST(42, "This most likely occurs because of a request being malformed by the " +
"client library or the message was sent to an incompatible broker. See the broker logs " +
"for more details.",
InvalidRequestException::new),
UNSUPPORTED_FOR_MESSAGE_FORMAT(43, "The message format version on the broker does not support the request.",
UnsupportedForMessageFormatException::new),
POLICY_VIOLATION(44, "Request parameters do not satisfy the configured policy.",
PolicyViolationException::new),
OUT_OF_ORDER_SEQUENCE_NUMBER(45, "The broker received an out of order sequence number.",
OutOfOrderSequenceException::new),
DUPLICATE_SEQUENCE_NUMBER(46, "The broker received a duplicate sequence number.",
DuplicateSequenceException::new),
INVALID_PRODUCER_EPOCH(47, "Producer attempted to produce with an old epoch.",
InvalidProducerEpochException::new),
INVALID_TXN_STATE(48, "The producer attempted a transactional operation in an invalid state.",
InvalidTxnStateException::new),
INVALID_PRODUCER_ID_MAPPING(49, "The producer attempted to use a producer id which is not currently assigned to " +
"its transactional id.",
InvalidPidMappingException::new),
INVALID_TRANSACTION_TIMEOUT(50, "The transaction timeout is larger than the maximum value allowed by " +
"the broker (as configured by transaction.max.timeout.ms).",
InvalidTxnTimeoutException::new),
CONCURRENT_TRANSACTIONS(51, "The producer attempted to update a transaction " +
"while another concurrent operation on the same transaction was ongoing.",
ConcurrentTransactionsException::new),
TRANSACTION_COORDINATOR_FENCED(52, "Indicates that the transaction coordinator sending a WriteTxnMarker " +
"is no longer the current coordinator for a given producer.",
TransactionCoordinatorFencedException::new),
TRANSACTIONAL_ID_AUTHORIZATION_FAILED(53, "Transactional Id authorization failed.",
TransactionalIdAuthorizationException::new),
SECURITY_DISABLED(54, "Security features are disabled.",
SecurityDisabledException::new),
OPERATION_NOT_ATTEMPTED(55, "The broker did not attempt to execute this operation. This may happen for " +
"batched RPCs where some operations in the batch failed, causing the broker to respond without " +
"trying the rest.",
OperationNotAttemptedException::new),
KAFKA_STORAGE_ERROR(56, "Disk error when trying to access log file on the disk.",
KafkaStorageException::new),
LOG_DIR_NOT_FOUND(57, "The user-specified log directory is not found in the broker config.",
LogDirNotFoundException::new),
SASL_AUTHENTICATION_FAILED(58, "SASL Authentication failed.",
SaslAuthenticationException::new),
UNKNOWN_PRODUCER_ID(59, "This exception is raised by the broker if it could not locate the producer metadata " +
"associated with the producerId in question. This could happen if, for instance, the producer's records " +
"were deleted because their retention time had elapsed. Once the last records of the producerId are " +
"removed, the producer's metadata is removed from the broker, and future appends by the producer will " +
"return this exception.",
UnknownProducerIdException::new),
REASSIGNMENT_IN_PROGRESS(60, "A partition reassignment is in progress.",
ReassignmentInProgressException::new),
DELEGATION_TOKEN_AUTH_DISABLED(61, "Delegation Token feature is not enabled.",
DelegationTokenDisabledException::new),
DELEGATION_TOKEN_NOT_FOUND(62, "Delegation Token is not found on server.",
DelegationTokenNotFoundException::new),
DELEGATION_TOKEN_OWNER_MISMATCH(63, "Specified Principal is not valid Owner/Renewer.",
DelegationTokenOwnerMismatchException::new),
DELEGATION_TOKEN_REQUEST_NOT_ALLOWED(64, "Delegation Token requests are not allowed on PLAINTEXT/1-way SSL " +
"channels and on delegation token authenticated channels.",
UnsupportedByAuthenticationException::new),
DELEGATION_TOKEN_AUTHORIZATION_FAILED(65, "Delegation Token authorization failed.",
DelegationTokenAuthorizationException::new),
DELEGATION_TOKEN_EXPIRED(66, "Delegation Token is expired.",
DelegationTokenExpiredException::new),
INVALID_PRINCIPAL_TYPE(67, "Supplied principalType is not supported.",
InvalidPrincipalTypeException::new),
NON_EMPTY_GROUP(68, "The group is not empty.",
GroupNotEmptyException::new),
GROUP_ID_NOT_FOUND(69, "The group id does not exist.",
GroupIdNotFoundException::new),
FETCH_SESSION_ID_NOT_FOUND(70, "The fetch session ID was not found.",
FetchSessionIdNotFoundException::new),
INVALID_FETCH_SESSION_EPOCH(71, "The fetch session epoch is invalid.",
InvalidFetchSessionEpochException::new),
LISTENER_NOT_FOUND(72, "There is no listener on the leader broker that matches the listener on which " +
"metadata request was processed.",
ListenerNotFoundException::new),
TOPIC_DELETION_DISABLED(73, "Topic deletion is disabled.",
TopicDeletionDisabledException::new),
FENCED_LEADER_EPOCH(74, "The leader epoch in the request is older than the epoch on the broker.",
FencedLeaderEpochException::new),
UNKNOWN_LEADER_EPOCH(75, "The leader epoch in the request is newer than the epoch on the broker.",
UnknownLeaderEpochException::new),
UNSUPPORTED_COMPRESSION_TYPE(76, "The requesting client does not support the compression type of given partition.",
UnsupportedCompressionTypeException::new),
STALE_BROKER_EPOCH(77, "Broker epoch has changed.",
StaleBrokerEpochException::new),
OFFSET_NOT_AVAILABLE(78, "The leader high watermark has not caught up from a recent leader " +
"election so the offsets cannot be guaranteed to be monotonically increasing.",
OffsetNotAvailableException::new),
MEMBER_ID_REQUIRED(79, "The group member needs to have a valid member id before actually entering a consumer group.",
MemberIdRequiredException::new),
PREFERRED_LEADER_NOT_AVAILABLE(80, "The preferred leader was not available.",
PreferredLeaderNotAvailableException::new),
GROUP_MAX_SIZE_REACHED(81, "The consumer group has reached its max size.", GroupMaxSizeReachedException::new),
FENCED_INSTANCE_ID(82, "The broker rejected this static consumer since " +
"another consumer with the same group.instance.id has registered with a different member.id.",
FencedInstanceIdException::new),
ELIGIBLE_LEADERS_NOT_AVAILABLE(83, "Eligible topic partition leaders are not available.",
EligibleLeadersNotAvailableException::new),
ELECTION_NOT_NEEDED(84, "Leader election not needed for topic partition.", ElectionNotNeededException::new),
NO_REASSIGNMENT_IN_PROGRESS(85, "No partition reassignment is in progress.",
NoReassignmentInProgressException::new),
GROUP_SUBSCRIBED_TO_TOPIC(86, "Deleting offsets of a topic is forbidden while the consumer group is actively subscribed to it.",
GroupSubscribedToTopicException::new),
INVALID_RECORD(87, "This record has failed the validation on broker and hence will be rejected.", InvalidRecordException::new),
UNSTABLE_OFFSET_COMMIT(88, "There are unstable offsets that need to be cleared.", UnstableOffsetCommitException::new),
THROTTLING_QUOTA_EXCEEDED(89, "The throttling quota has been exceeded.", ThrottlingQuotaExceededException::new),
PRODUCER_FENCED(90, "There is a newer producer with the same transactionalId " +
"which fences the current one.", ProducerFencedException::new),
RESOURCE_NOT_FOUND(91, "A request illegally referred to a resource that does not exist.", ResourceNotFoundException::new),
DUPLICATE_RESOURCE(92, "A request illegally referred to the same resource twice.", DuplicateResourceException::new),
UNACCEPTABLE_CREDENTIAL(93, "Requested credential would not meet criteria for acceptability.", UnacceptableCredentialException::new),
INCONSISTENT_VOTER_SET(94, "Indicates that the either the sender or recipient of a " +
"voter-only request is not one of the expected voters", InconsistentVoterSetException::new),
INVALID_UPDATE_VERSION(95, "The given update version was invalid.", InvalidUpdateVersionException::new),
FEATURE_UPDATE_FAILED(96, "Unable to update finalized features due to an unexpected server error.", FeatureUpdateFailedException::new),
PRINCIPAL_DESERIALIZATION_FAILURE(97, "Request principal deserialization failed during forwarding. " +
"This indicates an internal error on the broker cluster security setup.", PrincipalDeserializationException::new),
SNAPSHOT_NOT_FOUND(98, "Requested snapshot was not found", SnapshotNotFoundException::new),
POSITION_OUT_OF_RANGE(
99,
"Requested position is not greater than or equal to zero, and less than the size of the snapshot.",
PositionOutOfRangeException::new),
UNKNOWN_TOPIC_ID(100, "This server does not host this topic ID.", UnknownTopicIdException::new),
DUPLICATE_BROKER_REGISTRATION(101, "This broker ID is already in use.", DuplicateBrokerRegistrationException::new),
BROKER_ID_NOT_REGISTERED(102, "The given broker ID was not registered.", BrokerIdNotRegisteredException::new),
INCONSISTENT_TOPIC_ID(103, "The log's topic ID did not match the topic ID in the request", InconsistentTopicIdException::new),
INCONSISTENT_CLUSTER_ID(104, "The clusterId in the request does not match that found on the server", InconsistentClusterIdException::new),
TRANSACTIONAL_ID_NOT_FOUND(105, "The transactionalId could not be found", TransactionalIdNotFoundException::new),
FETCH_SESSION_TOPIC_ID_ERROR(106, "The fetch session encountered inconsistent topic ID usage", FetchSessionTopicIdException::new),
INELIGIBLE_REPLICA(107, "The new ISR contains at least one ineligible replica.", IneligibleReplicaException::new),
NEW_LEADER_ELECTED(108, "The AlterPartition request successfully updated the partition state but the leader has changed.", NewLeaderElectedException::new);
private static final Logger log = LoggerFactory.getLogger(Errors.class);
private static Map<Class<?>, Errors> classToError = new HashMap<>();
private static Map<Short, Errors> codeToError = new HashMap<>();
static {
for (Errors error : Errors.values()) {
if (codeToError.put(error.code(), error) != null)
throw new ExceptionInInitializerError("Code " + error.code() + " for error " +
error + " has already been used");
if (error.exception != null)
classToError.put(error.exception.getClass(), error);
}
}
private final short code;
private final Function<String, ApiException> builder;
private final ApiException exception;
Errors(int code, String defaultExceptionString, Function<String, ApiException> builder) {
this.code = (short) code;
this.builder = builder;
this.exception = builder.apply(defaultExceptionString);
}
/**
* An instance of the exception
*/
public ApiException exception() {
return this.exception;
}
/**
* Create an instance of the ApiException that contains the given error message.
*
* @param message The message string to set.
* @return The exception.
*/
public ApiException exception(String message) {
if (message == null) {
// If no error message was specified, return an exception with the default error message.
return exception;
}
// Return an exception with the given error message.
return builder.apply(message);
}
/**
* Returns the class name of the exception or null if this is {@code Errors.NONE}.
*/
public String exceptionName() {
return exception == null ? null : exception.getClass().getName();
}
/**
* The error code for the exception
*/
public short code() {
return this.code;
}
/**
* Throw the exception corresponding to this error if there is one
*/
public void maybeThrow() {
if (exception != null) {
throw this.exception;
}
}
/**
* Get a friendly description of the error (if one is available).
* @return the error message
*/
public String message() {
if (exception != null)
return exception.getMessage();
return toString();
}
/**
* Throw the exception if there is one
*/
public static Errors forCode(short code) {
Errors error = codeToError.get(code);
if (error != null) {
return error;
} else {
log.warn("Unexpected error code: {}.", code);
return UNKNOWN_SERVER_ERROR;
}
}
/**
* Return the error instance associated with this exception or any of its superclasses (or UNKNOWN if there is none).
* If there are multiple matches in the class hierarchy, the first match starting from the bottom is used.
*/
public static Errors forException(Throwable t) {
Throwable cause = maybeUnwrapException(t);
Class<?> clazz = cause.getClass();
while (clazz != null) {
Errors error = classToError.get(clazz);
if (error != null)
return error;
clazz = clazz.getSuperclass();
}
return UNKNOWN_SERVER_ERROR;
}
/**
* Check if a Throwable is a commonly wrapped exception type (e.g. `CompletionException`) and return
* the cause if so. This is useful to handle cases where exceptions may be raised from a future or a
* completion stage (as might be the case for requests sent to the controller in `ControllerApis`).
*
* @param t The Throwable to check
* @return The throwable itself or its cause if it is an instance of a commonly wrapped exception type
*/
public static Throwable maybeUnwrapException(Throwable t) {
if (t instanceof CompletionException || t instanceof ExecutionException) {
return t.getCause();
} else {
return t;
}
}
private static String toHtml() {
final StringBuilder b = new StringBuilder();
b.append("<table class=\"data-table\"><tbody>\n");
b.append("<tr>");
b.append("<th>Error</th>\n");
b.append("<th>Code</th>\n");
b.append("<th>Retriable</th>\n");
b.append("<th>Description</th>\n");
b.append("</tr>\n");
for (Errors error : Errors.values()) {
b.append("<tr>");
b.append("<td>");
b.append(error.name());
b.append("</td>");
b.append("<td>");
b.append(error.code());
b.append("</td>");
b.append("<td>");
b.append(error.exception() != null && error.exception() instanceof RetriableException ? "True" : "False");
b.append("</td>");
b.append("<td>");
b.append(error.exception() != null ? error.exception().getMessage() : "");
b.append("</td>");
b.append("</tr>\n");
}
b.append("</tbody></table>\n");
return b.toString();
}
public static void main(String[] args) {
System.out.println(toHtml());
}
}
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