//snippet-sourcedescription:[PutRecord.java demonstrates how to write a data record into a delivery stream.]
//snippet-keyword:[SDK for Java 2.0]
//snippet-keyword:[Code Sample]
//snippet-service:[Amazon Kinesis Data Firehose]
//snippet-sourcetype:[full-example]
//snippet-sourcedate:[7/6/2020]
//snippet-sourceauthor:[scmacdon - aws]

/*
   Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
   This file is licensed under the Apache License, Version 2.0 (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/apache2.0/
   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 com.example.firehose;

// snippet-start:[firehose.java2.put_record.import]
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.firehose.FirehoseClient;
import software.amazon.awssdk.services.firehose.model.FirehoseException;
import software.amazon.awssdk.services.firehose.model.PutRecordRequest;
import software.amazon.awssdk.core.SdkBytes;
import software.amazon.awssdk.services.firehose.model.Record;
import software.amazon.awssdk.services.firehose.model.PutRecordResponse;
// snippet-end:[firehose.java2.put_record.import]

public class PutRecord {

    public static void main(String[] args) {

        final String USAGE = "\n" +
                "Usage:\n" +
                "    PutRecord <text> <streamName> \n\n" +
                "Where:\n" +
                "    text - the text used as the data to write to the data stream \n\n" +
                "    streamName - the data stream name \n" ;

        if (args.length < 2) {
            System.out.println(USAGE);
            System.exit(1);
        }

        String textValue = args[0];
        String streamName = args[1];

        Region region = Region.US_WEST_2;
        FirehoseClient firehoseClient = FirehoseClient.builder()
                .region(region)
                .build();

        putSingleRecord(firehoseClient, textValue, streamName) ;
  }

    // snippet-start:[firehose.java2.put_record.main]
    public static void putSingleRecord( FirehoseClient firehoseClient, String textValue, String streamName) {

      try {

        SdkBytes sdkBytes = SdkBytes.fromByteArray(textValue.getBytes());

        Record record = Record.builder()
                .data(sdkBytes)
                .build();

        PutRecordRequest recordRequest = PutRecordRequest.builder()
                .deliveryStreamName(streamName)
                .record(record)
                .build();

        PutRecordResponse recordResponse = firehoseClient.putRecord(recordRequest) ;
        System.out.println("The record ID is "+recordResponse.recordId());

    } catch (FirehoseException e) {
        System.out.println(e.getLocalizedMessage());
        System.exit(1);
    }
   // snippet-end:[firehose.java2.put_record.main]
  }
}

Create PutRecord.java