software.amazon.kinesis.lifecycle.events.ProcessRecordsInput Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of amazon-kinesis-client Show documentation

The Amazon Kinesis Client Library for Java enables Java developers to easily consume and process data from Amazon Kinesis.

There is a newer version: 3.0.1

Show newest version

/*
 * Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Amazon Software License (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 * http://aws.amazon.com/asl/
 *
 * or in the "license" file accompanying this file. This file 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 software.amazon.kinesis.lifecycle.events;

import java.time.Duration;
import java.time.Instant;
import java.util.List;

import lombok.Builder;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.ToString;
import lombok.experimental.Accessors;
import software.amazon.kinesis.processor.ShardRecordProcessor;
import software.amazon.kinesis.processor.RecordProcessorCheckpointer;
import software.amazon.kinesis.retrieval.KinesisClientRecord;

/**
 * Container for the parameters to the ShardRecordProcessor's
 * {@link ShardRecordProcessor#processRecords(ProcessRecordsInput processRecordsInput) processRecords} method.
 */
@Builder(toBuilder = true)
@Getter
@Accessors(fluent = true)
@EqualsAndHashCode
@ToString
public class ProcessRecordsInput {
    /**
     * The time that this batch of records was received by the KCL.
     */
    private Instant cacheEntryTime;
    /**
     * The time that this batch of records was prepared to be provided to the {@link ShardRecordProcessor}
     */
    private Instant cacheExitTime;
    /**
     * Whether this batch of records is at the end of the shard.
     *
     * {@link ShardRecordProcessor}'s do not need to check this. If this is set the Scheduler will trigger a call to
     * {@link ShardRecordProcessor#shardEnded(ShardEndedInput)} after the completion of the current processing call.
     */
    private boolean isAtShardEnd;
    /**
     * The records received from Kinesis. These records may have been de-aggregated if they were published by the KPL.
     */
    private List records;
    /**
     * A checkpointer that the {@link ShardRecordProcessor} can use to checkpoint its progress.
     */
    private RecordProcessorCheckpointer checkpointer;
    /**
     * How far behind this batch of records was when received from Kinesis.
     *
     * This value does not include the {@link #timeSpentInCache()}.
     */
    private Long millisBehindLatest;

    /**
     * How long the records spent waiting to be dispatched to the {@link ShardRecordProcessor}
     * 
     * @return the amount of time that records spent waiting before processing.
     */
    public Duration timeSpentInCache() {
        if (cacheEntryTime == null || cacheExitTime == null) {
            return Duration.ZERO;
        }
        return Duration.between(cacheEntryTime, cacheExitTime);
    }

}