generator/src/main/java/org/apache/kafka/message/EntityType.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.message;

import com.fasterxml.jackson.annotation.JsonProperty;

public enum EntityType {
    @JsonProperty("unknown")
    UNKNOWN(null),

    @JsonProperty("transactionalId")
    TRANSACTIONAL_ID(FieldType.StringFieldType.INSTANCE),

    @JsonProperty("producerId")
    PRODUCER_ID(FieldType.Int64FieldType.INSTANCE),

    @JsonProperty("groupId")
    GROUP_ID(FieldType.StringFieldType.INSTANCE),

    @JsonProperty("topicName")
    TOPIC_NAME(FieldType.StringFieldType.INSTANCE),

    @JsonProperty("brokerId")
    BROKER_ID(FieldType.Int32FieldType.INSTANCE);

    private final FieldType baseType;

    EntityType(FieldType baseType) {
        this.baseType = baseType;
    }

    public void verifyTypeMatches(String fieldName, FieldType type) {
        if (this == UNKNOWN) {
            return;
        }
        if (type instanceof FieldType.ArrayType) {
            FieldType.ArrayType arrayType = (FieldType.ArrayType) type;
            verifyTypeMatches(fieldName, arrayType.elementType());
        } else {
            if (!type.toString().equals(baseType.toString())) {
                throw new RuntimeException("Field " + fieldName + " has entity type " +
                    name() + ", but field type " + type.toString() + ", which does " +
                    "not match.");
            }
        }
    }
}