| /* |
| * 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.drill.exec.store.kafka; |
| |
| import org.apache.drill.common.types.TypeProtos; |
| |
| /** |
| * MetaData fields provide additional information about each message. |
| * It is expected that one should not modify the fieldName of each constant as it breaks the compatibility. |
| */ |
| public enum MetaDataField { |
| |
| KAFKA_TOPIC("kafkaTopic", TypeProtos.MinorType.VARCHAR), |
| KAFKA_PARTITION_ID("kafkaPartitionId", TypeProtos.MinorType.BIGINT), |
| KAFKA_OFFSET("kafkaMsgOffset", TypeProtos.MinorType.BIGINT), |
| KAFKA_TIMESTAMP("kafkaMsgTimestamp", TypeProtos.MinorType.BIGINT), |
| KAFKA_MSG_KEY("kafkaMsgKey", TypeProtos.MinorType.VARCHAR); |
| |
| private final String fieldName; |
| private final TypeProtos.MinorType fieldType; |
| |
| MetaDataField(final String fieldName, TypeProtos.MinorType type) { |
| this.fieldName = fieldName; |
| this.fieldType = type; |
| } |
| |
| public String getFieldName() { |
| return fieldName; |
| } |
| |
| public TypeProtos.MinorType getFieldType() { |
| return fieldType; |
| } |
| } |