/*
 * 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.fluss.row.arrow.vectors;

import org.apache.fluss.annotation.Internal;
import org.apache.fluss.row.columnar.BytesColumnVector;
import org.apache.fluss.shaded.arrow.org.apache.arrow.vector.VarCharVector;

import static org.apache.fluss.utils.Preconditions.checkNotNull;

/** Arrow column vector for VarChar. */
@Internal
public class ArrowVarCharColumnVector implements BytesColumnVector {

    /** Container which is used to store the sequence of varchar values of a column to read. */
    private final VarCharVector varCharVector;

    public ArrowVarCharColumnVector(VarCharVector varCharVector) {
        this.varCharVector = checkNotNull(varCharVector);
    }

    @Override
    public Bytes getBytes(int i) {
        byte[] bytes = varCharVector.get(i);
        return new BytesColumnVector.Bytes(bytes, 0, bytes.length);
    }

    @Override
    public boolean isNullAt(int i) {
        return varCharVector.isNull(i);
    }
}
