Examples with DynamoDbClient software.amazon.awssdk.services.dynamodb.DynamoDbClient used on opensource projects

Example 21 with DynamoDbClient

use of software.amazon.awssdk.services.dynamodb.DynamoDbClient in project cas by apereo.

the class DynamoDbTableUtils method getRecordsByKeys.

/**
 * Gets records by keys.
 *
 * @param <T>            the type parameter
 * @param dynamoDbClient the dynamo db client
 * @param tableName      the table name
 * @param queries        the queries
 * @param itemMapper     the item mapper
 * @return the records by keys
 */
public static <T> Stream<T> getRecordsByKeys(final DynamoDbClient dynamoDbClient, final String tableName, final List<DynamoDbQueryBuilder> queries, final Function<Map<String, AttributeValue>, T> itemMapper) {
    try {
        val scanFilter = queries.stream().map(query -> {
            val cond = Condition.builder().comparisonOperator(query.getOperator()).attributeValueList(query.getAttributeValue()).build();
            return Pair.of(query.getKey(), cond);
        }).collect(Collectors.toMap(Pair::getKey, Pair::getValue));
        val scanRequest = ScanRequest.builder().tableName(tableName).scanFilter(scanFilter).build();
        LOGGER.debug("Submitting request [{}] to get record with keys [{}]", scanRequest, queries);
        val items = dynamoDbClient.scan(scanRequest).items();
        return items.stream().map(itemMapper);
    } catch (final Exception e) {
        LoggingUtils.error(LOGGER, e);
    }
    return Stream.empty();
}

Example 22 with DynamoDbClient

use of software.amazon.awssdk.services.dynamodb.DynamoDbClient in project aws-doc-sdk-examples by awsdocs.

the class EnhancedScanRecords method main.

public static void main(String[] args) {
    Region region = Region.US_EAST_1;
    DynamoDbClient ddb = DynamoDbClient.builder().region(region).build();
    DynamoDbEnhancedClient enhancedClient = DynamoDbEnhancedClient.builder().dynamoDbClient(ddb).build();
    scan(enhancedClient);
    ddb.close();
}

Example 23 with DynamoDbClient

use of software.amazon.awssdk.services.dynamodb.DynamoDbClient in project aws-doc-sdk-examples by awsdocs.

the class EnhancedTableSchema method main.

public static void main(String[] args) {
    Region region = Region.US_EAST_1;
    DynamoDbClient ddb = DynamoDbClient.builder().region(region).build();
    DynamoDbEnhancedClient enhancedClient = DynamoDbEnhancedClient.builder().dynamoDbClient(ddb).build();
    putRecord(enhancedClient);
    ddb.close();
}

Example 24 with DynamoDbClient

use of software.amazon.awssdk.services.dynamodb.DynamoDbClient in project aws-doc-sdk-examples by awsdocs.

the class PutItem method main.

public static void main(String[] args) {
    final String USAGE = "\n" + "Usage:\n" + "    <tableName> <key> <keyVal> <albumtitle> <albumtitleval> <awards> <awardsval> <Songtitle> <songtitleval>\n\n" + "Where:\n" + "    tableName - the Amazon DynamoDB table in which an item is placed (for example, Music3).\n" + "    key - the key used in the Amazon DynamoDB table (for example, Artist).\n" + "    keyval - the key value that represents the item to get (for example, Famous Band).\n" + "    albumTitle - album title (for example, AlbumTitle).\n" + "    AlbumTitleValue - the name of the album (for example, Songs About Life ).\n" + "    Awards - the awards column (for example, Awards).\n" + "    AwardVal - the value of the awards (for example, 10).\n" + "    SongTitle - the song title (for example, SongTitle).\n" + "    SongTitleVal - the value of the song title (for example, Happy Day).\n" + "**Warning** This program will  place an item that you specify into a table!\n";
    if (args.length != 9) {
        System.out.println(USAGE);
        System.exit(1);
    }
    String tableName = args[0];
    String key = args[1];
    String keyVal = args[2];
    String albumTitle = args[3];
    String albumTitleValue = args[4];
    String awards = args[5];
    String awardVal = args[6];
    String songTitle = args[7];
    String songTitleVal = args[8];
    Region region = Region.US_WEST_2;
    DynamoDbClient ddb = DynamoDbClient.builder().region(region).build();
    putItemInTable(ddb, tableName, key, keyVal, albumTitle, albumTitleValue, awards, awardVal, songTitle, songTitleVal);
    System.out.println("Done!");
    ddb.close();
}

Example 25 with DynamoDbClient

use of software.amazon.awssdk.services.dynamodb.DynamoDbClient in project aws-doc-sdk-examples by awsdocs.

the class Query method main.

public static void main(String[] args) {
    final String USAGE = "\n" + "Usage:\n" + "    Query <tableName> <partitionKeyName> <partitionKeyVal>\n\n" + "Where:\n" + "    tableName - the Amazon DynamoDB table to put the item in (for example, Music3).\n" + "    partitionKeyName - the partition key name of the Amazon DynamoDB table (for example, Artist).\n" + "    partitionKeyVal - value of the partition key that should match (for example, Famous Band).\n\n" + "Example:\n";
    if (args.length != 3) {
        System.out.println(USAGE);
        System.exit(1);
    }
    String tableName = args[0];
    String partitionKeyName = args[1];
    String partitionKeyVal = args[2];
    // For more information about an alias, see:
    // https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Expressions.ExpressionAttributeNames.html
    String partitionAlias = "#a";
    System.out.format("Querying %s", tableName);
    System.out.println("");
    Region region = Region.US_EAST_1;
    DynamoDbClient ddb = DynamoDbClient.builder().region(region).build();
    int count = queryTable(ddb, tableName, partitionKeyName, partitionKeyVal, partitionAlias);
    System.out.println("There were " + count + "record(s) returned");
    ddb.close();
}