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.beam.sdk.extensions.sql.impl.planner;
  
  import java.lang.reflect.Type;
  import org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.adapter.java.JavaTypeFactory;
  import org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.jdbc.JavaTypeFactoryImpl;
  import org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.type.RelDataType;
  import org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.sql.type.BasicSqlType;
  import org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.sql.type.IntervalSqlType;
  import org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.sql.type.SqlTypeName;
  
  /** customized data type in Beam. */
  public class BeamJavaTypeFactory extends JavaTypeFactoryImpl {
    public static final JavaTypeFactory INSTANCE = new BeamJavaTypeFactory();
  
    private BeamJavaTypeFactory() {
      super(BeamRelDataTypeSystem.INSTANCE);
    }
  
    @Override
    public Type getJavaClass(RelDataType type) {
      if (type instanceof BasicSqlType || type instanceof IntervalSqlType) {
        if (type.getSqlTypeName() == SqlTypeName.FLOAT) {
          return type.isNullable() ? Float.class : float.class;
        }
      }
      // Map BINARY and VARBINARY to byte[] instead of ByteString so UDFs over these types don't
      // require vendored Calcite.
      if (type.getSqlTypeName() == SqlTypeName.BINARY
          || type.getSqlTypeName() == SqlTypeName.VARBINARY) {
        return byte[].class;
      }
      return super.getJavaClass(type);
    }
  }
  