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/*
* 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.requests;
import org.apache.kafka.common.errors.UnsupportedVersionException;
import org.apache.kafka.common.network.NetworkSend;
import org.apache.kafka.common.network.Send;
import org.apache.kafka.common.protocol.ApiKeys;
import org.apache.kafka.common.protocol.Errors;
import org.apache.kafka.common.protocol.types.Struct;
import java.nio.ByteBuffer;
import java.util.Map;
public abstract class AbstractRequest implements AbstractRequestResponse {
public static abstract class Builder {
private final ApiKeys apiKey;
private final short oldestAllowedVersion;
private final short latestAllowedVersion;
/**
* Construct a new builder which allows any supported version
*/
public Builder(ApiKeys apiKey) {
this(apiKey, apiKey.oldestVersion(), apiKey.latestVersion());
}
/**
* Construct a new builder which allows only a specific version
*/
public Builder(ApiKeys apiKey, short allowedVersion) {
this(apiKey, allowedVersion, allowedVersion);
}
/**
* Construct a new builder which allows an inclusive range of versions
*/
public Builder(ApiKeys apiKey, short oldestAllowedVersion, short latestAllowedVersion) {
this.apiKey = apiKey;
this.oldestAllowedVersion = oldestAllowedVersion;
this.latestAllowedVersion = latestAllowedVersion;
}
public ApiKeys apiKey() {
return apiKey;
}
public short oldestAllowedVersion() {
return oldestAllowedVersion;
}
public short latestAllowedVersion() {
return latestAllowedVersion;
}
public T build() {
return build(latestAllowedVersion());
}
public abstract T build(short version);
}
private final short version;
public final ApiKeys api;
public AbstractRequest(ApiKeys api, short version) {
if (!api.isVersionSupported(version))
throw new UnsupportedVersionException("The " + api + " protocol does not support version " + version);
this.version = version;
this.api = api;
}
/**
* Get the version of this AbstractRequest object.
*/
public short version() {
return version;
}
public Send toSend(String destination, RequestHeader header) {
return new NetworkSend(destination, serialize(header));
}
/**
* Use with care, typically {@link #toSend(String, RequestHeader)} should be used instead.
*/
public ByteBuffer serialize(RequestHeader header) {
return RequestUtils.serialize(header.toStruct(), toStruct());
}
protected abstract Struct toStruct();
public String toString(boolean verbose) {
return toStruct().toString();
}
@Override
public final String toString() {
return toString(true);
}
/**
* Get an error response for a request
*/
public AbstractResponse getErrorResponse(Throwable e) {
return getErrorResponse(AbstractResponse.DEFAULT_THROTTLE_TIME, e);
}
/**
* Get an error response for a request with specified throttle time in the response if applicable
*/
public abstract AbstractResponse getErrorResponse(int throttleTimeMs, Throwable e);
/**
* Get the error counts corresponding to an error response. This is overridden for requests
* where response may be null (e.g produce with acks=0).
*/
public Map errorCounts(Throwable e) {
AbstractResponse response = getErrorResponse(0, e);
if (response == null)
throw new IllegalStateException("Error counts could not be obtained for request " + this);
else
return response.errorCounts();
}
/**
* Factory method for getting a request object based on ApiKey ID and a version
*/
public static AbstractRequest parseRequest(ApiKeys apiKey, short apiVersion, Struct struct) {
switch (apiKey) {
case PRODUCE:
return new ProduceRequest(struct, apiVersion);
case FETCH:
return new FetchRequest(struct, apiVersion);
case LIST_OFFSETS:
return new ListOffsetRequest(struct, apiVersion);
case METADATA:
return new MetadataRequest(struct, apiVersion);
case OFFSET_COMMIT:
return new OffsetCommitRequest(struct, apiVersion);
case OFFSET_FETCH:
return new OffsetFetchRequest(struct, apiVersion);
case FIND_COORDINATOR:
return new FindCoordinatorRequest(struct, apiVersion);
case JOIN_GROUP:
return new JoinGroupRequest(struct, apiVersion);
case HEARTBEAT:
return new HeartbeatRequest(struct, apiVersion);
case LEAVE_GROUP:
return new LeaveGroupRequest(struct, apiVersion);
case SYNC_GROUP:
return new SyncGroupRequest(struct, apiVersion);
case STOP_REPLICA:
return new StopReplicaRequest(struct, apiVersion);
case CONTROLLED_SHUTDOWN:
return new ControlledShutdownRequest(struct, apiVersion);
case UPDATE_METADATA:
return new UpdateMetadataRequest(struct, apiVersion);
case LEADER_AND_ISR:
return new LeaderAndIsrRequest(struct, apiVersion);
case DESCRIBE_GROUPS:
return new DescribeGroupsRequest(struct, apiVersion);
case LIST_GROUPS:
return new ListGroupsRequest(struct, apiVersion);
case SASL_HANDSHAKE:
return new SaslHandshakeRequest(struct, apiVersion);
case API_VERSIONS:
return new ApiVersionsRequest(struct, apiVersion);
case CREATE_TOPICS:
return new CreateTopicsRequest(struct, apiVersion);
case DELETE_TOPICS:
return new DeleteTopicsRequest(struct, apiVersion);
case DELETE_RECORDS:
return new DeleteRecordsRequest(struct, apiVersion);
case INIT_PRODUCER_ID:
return new InitProducerIdRequest(struct, apiVersion);
case OFFSET_FOR_LEADER_EPOCH:
return new OffsetsForLeaderEpochRequest(struct, apiVersion);
case ADD_PARTITIONS_TO_TXN:
return new AddPartitionsToTxnRequest(struct, apiVersion);
case ADD_OFFSETS_TO_TXN:
return new AddOffsetsToTxnRequest(struct, apiVersion);
case END_TXN:
return new EndTxnRequest(struct, apiVersion);
case WRITE_TXN_MARKERS:
return new WriteTxnMarkersRequest(struct, apiVersion);
case TXN_OFFSET_COMMIT:
return new TxnOffsetCommitRequest(struct, apiVersion);
case DESCRIBE_ACLS:
return new DescribeAclsRequest(struct, apiVersion);
case CREATE_ACLS:
return new CreateAclsRequest(struct, apiVersion);
case DELETE_ACLS:
return new DeleteAclsRequest(struct, apiVersion);
case DESCRIBE_CONFIGS:
return new DescribeConfigsRequest(struct, apiVersion);
case ALTER_CONFIGS:
return new AlterConfigsRequest(struct, apiVersion);
case ALTER_REPLICA_LOG_DIRS:
return new AlterReplicaLogDirsRequest(struct, apiVersion);
case DESCRIBE_LOG_DIRS:
return new DescribeLogDirsRequest(struct, apiVersion);
case SASL_AUTHENTICATE:
return new SaslAuthenticateRequest(struct, apiVersion);
case CREATE_PARTITIONS:
return new CreatePartitionsRequest(struct, apiVersion);
case CREATE_DELEGATION_TOKEN:
return new CreateDelegationTokenRequest(struct, apiVersion);
case RENEW_DELEGATION_TOKEN:
return new RenewDelegationTokenRequest(struct, apiVersion);
case EXPIRE_DELEGATION_TOKEN:
return new ExpireDelegationTokenRequest(struct, apiVersion);
case DESCRIBE_DELEGATION_TOKEN:
return new DescribeDelegationTokenRequest(struct, apiVersion);
case DELETE_GROUPS:
return new DeleteGroupsRequest(struct, apiVersion);
case ELECT_LEADERS:
return new ElectLeadersRequest(struct, apiVersion);
case INCREMENTAL_ALTER_CONFIGS:
return new IncrementalAlterConfigsRequest(struct, apiVersion);
case ALTER_PARTITION_REASSIGNMENTS:
return new AlterPartitionReassignmentsRequest(struct, apiVersion);
case LIST_PARTITION_REASSIGNMENTS:
return new ListPartitionReassignmentsRequest(struct, apiVersion);
case OFFSET_DELETE:
return new OffsetDeleteRequest(struct, apiVersion);
default:
throw new AssertionError(String.format("ApiKey %s is not currently handled in `parseRequest`, the " +
"code should be updated to do so.", apiKey));
}
}
}
