/*
 * 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.io.kinesis;

import static com.google.common.collect.Lists.transform;

import com.amazonaws.services.kinesis.clientlibrary.types.UserRecord;
import com.google.common.base.Function;
import java.util.List;
import javax.annotation.Nullable;

/**
 * Represents the output of 'get' operation on Kinesis stream.
 */
class GetKinesisRecordsResult {
    private final List<KinesisRecord> records;
    private final String nextShardIterator;

    public GetKinesisRecordsResult(List<UserRecord> records, String nextShardIterator,
                                   final String streamName, final String shardId) {
        this.records = transform(records, new Function<UserRecord, KinesisRecord>() {
            @Nullable
            @Override
            public KinesisRecord apply(@Nullable UserRecord input) {
                assert input != null;  // to make FindBugs happy
                return new KinesisRecord(input, streamName, shardId);
            }
        });
        this.nextShardIterator = nextShardIterator;
    }

    public List<KinesisRecord> getRecords() {
        return records;
    }

    public String getNextShardIterator() {
        return nextShardIterator;
    }
}