content: /*
   * 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.asterix.column.validation;
  
  import java.util.List;
  import java.util.Set;
  
  import org.apache.asterix.common.config.DatasetConfig;
  import org.apache.asterix.common.context.CorrelatedPrefixMergePolicyFactory;
  import org.apache.asterix.common.exceptions.CompilationException;
  import org.apache.asterix.common.exceptions.ErrorCode;
  import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
  import org.apache.hyracks.api.exceptions.SourceLocation;
  
  public class ColumnPropertiesValidationUtil {
      private static final Set<String> UNSUPPORTED_MERGE_POLICIES = Set.of(CorrelatedPrefixMergePolicyFactory.NAME);
  
      private ColumnPropertiesValidationUtil() {
      }
  
      public static void validate(SourceLocation sourceLocation, DatasetConfig.DatasetFormat format, String mergePolicy,
              List<String> filterFields) throws AlgebricksException {
          if (format != DatasetConfig.DatasetFormat.COLUMN) {
              return;
          }
  
          if (UNSUPPORTED_MERGE_POLICIES.contains(mergePolicy.toLowerCase())) {
              throw CompilationException.create(ErrorCode.UNSUPPORTED_COLUMN_MERGE_POLICY, sourceLocation, mergePolicy);
          }
  
          if (filterFields != null && !filterFields.isEmpty()) {
              throw CompilationException.create(ErrorCode.UNSUPPORTED_COLUMN_LSM_FILTER, sourceLocation);
          }
      }
  
  }
  