| /** |
| * 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.protocol.ApiKeys; |
| import org.apache.kafka.common.protocol.types.Struct; |
| |
| import java.nio.ByteBuffer; |
| |
| public abstract class AbstractRequest extends AbstractRequestResponse { |
| |
| public AbstractRequest(Struct struct) { |
| super(struct); |
| } |
| |
| /** |
| * Get an error response for a request for a given api version |
| */ |
| public abstract AbstractRequestResponse getErrorResponse(int versionId, Throwable e); |
| |
| /** |
| * Factory method for getting a request object based on ApiKey ID and a buffer |
| */ |
| public static AbstractRequest getRequest(int requestId, int versionId, ByteBuffer buffer) { |
| ApiKeys apiKey = ApiKeys.forId(requestId); |
| switch (apiKey) { |
| case PRODUCE: |
| return ProduceRequest.parse(buffer, versionId); |
| case FETCH: |
| return FetchRequest.parse(buffer, versionId); |
| case LIST_OFFSETS: |
| return ListOffsetRequest.parse(buffer, versionId); |
| case METADATA: |
| return MetadataRequest.parse(buffer, versionId); |
| case OFFSET_COMMIT: |
| return OffsetCommitRequest.parse(buffer, versionId); |
| case OFFSET_FETCH: |
| return OffsetFetchRequest.parse(buffer, versionId); |
| case GROUP_COORDINATOR: |
| return GroupCoordinatorRequest.parse(buffer, versionId); |
| case JOIN_GROUP: |
| return JoinGroupRequest.parse(buffer, versionId); |
| case HEARTBEAT: |
| return HeartbeatRequest.parse(buffer, versionId); |
| case LEAVE_GROUP: |
| return LeaveGroupRequest.parse(buffer, versionId); |
| case SYNC_GROUP: |
| return SyncGroupRequest.parse(buffer, versionId); |
| case STOP_REPLICA: |
| return StopReplicaRequest.parse(buffer, versionId); |
| case CONTROLLED_SHUTDOWN_KEY: |
| return ControlledShutdownRequest.parse(buffer, versionId); |
| case UPDATE_METADATA_KEY: |
| return UpdateMetadataRequest.parse(buffer, versionId); |
| case LEADER_AND_ISR: |
| return LeaderAndIsrRequest.parse(buffer, versionId); |
| case DESCRIBE_GROUPS: |
| return DescribeGroupsRequest.parse(buffer, versionId); |
| case LIST_GROUPS: |
| return ListGroupsRequest.parse(buffer, versionId); |
| case SASL_HANDSHAKE: |
| return SaslHandshakeRequest.parse(buffer, versionId); |
| case API_VERSIONS: |
| return ApiVersionsRequest.parse(buffer, versionId); |
| default: |
| throw new AssertionError(String.format("ApiKey %s is not currently handled in `getRequest`, the " + |
| "code should be updated to do so.", apiKey)); |
| } |
| } |
| } |