org.apache.inlong.sort.redis.table.SchemaValidator Maven / Gradle / Ivy
/*
* 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.inlong.sort.redis.table;
import org.apache.inlong.sort.redis.common.mapper.RedisCommand;
import org.apache.flink.table.catalog.Column;
import org.apache.flink.table.catalog.ResolvedSchema;
import org.apache.flink.table.types.logical.LogicalType;
import org.apache.flink.table.types.logical.LogicalTypeRoot;
import org.apache.flink.util.Preconditions;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
/**
* Schema validator
*/
public class SchemaValidator {
private final Map schemaMap = new HashMap<>();
/**
* Register schema validator
*
* @param redisCommand The redis command
* @param requiredLogicalTypes The requiredLogicalTypes
* @return Schema validator
*/
public SchemaValidator register(RedisCommand redisCommand,
LogicalTypeRoot[] requiredLogicalTypes) {
schemaMap.putIfAbsent(redisCommand, requiredLogicalTypes);
return this;
}
/**
* Validate the schema
*
* @param redisCommand The redis command
* @param tableSchema The table schema
*/
public void validate(RedisCommand redisCommand, ResolvedSchema tableSchema) {
LogicalType[] logicalTypes = tableSchema.getColumns().stream().filter(Column::isPhysical)
.map(s -> s.getDataType().getLogicalType()).toArray(LogicalType[]::new);
LogicalTypeRoot[] requiredLogicalTypes = schemaMap.get(redisCommand);
for (int i = 0; i < requiredLogicalTypes.length; i++) {
Preconditions.checkState(requiredLogicalTypes[i] == logicalTypes[i].getTypeRoot(),
"Table schema " + Arrays.deepToString(logicalTypes) + " is invalid. Table schema "
+ Arrays.deepToString(requiredLogicalTypes) + " is required for command " + redisCommand
.name());
}
}
}