/**
 * 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.pulsar.sql.presto;

import static java.util.Objects.requireNonNull;

import com.google.common.collect.ImmutableList;
import io.prestosql.spi.connector.RecordCursor;
import io.prestosql.spi.connector.RecordSet;
import io.prestosql.spi.type.Type;
import java.util.List;

/**
 * Implementation of a record set.
 */
public class PulsarRecordSet implements RecordSet {

    private final List<PulsarColumnHandle> columnHandles;
    private final List<Type> columnTypes;
    private final PulsarSplit pulsarSplit;
    private final PulsarConnectorConfig pulsarConnectorConfig;

    public PulsarRecordSet(PulsarSplit split, List<PulsarColumnHandle> columnHandles, PulsarConnectorConfig
            pulsarConnectorConfig) {
        requireNonNull(split, "split is null");
        this.columnHandles = requireNonNull(columnHandles, "column handles is null");
        ImmutableList.Builder<Type> types = ImmutableList.builder();
        for (PulsarColumnHandle column : columnHandles) {
            types.add(column.getType());
        }
        this.columnTypes = types.build();

        this.pulsarSplit = split;

        this.pulsarConnectorConfig = pulsarConnectorConfig;
    }


    @Override
    public List<Type> getColumnTypes() {
        return this.columnTypes;
    }

    @Override
    public RecordCursor cursor() {
        return new PulsarRecordCursor(this.columnHandles, this.pulsarSplit, this.pulsarConnectorConfig);
    }
}
