Example usage for com.amazonaws.services.dynamodbv2.model ListTablesResult getLastEvaluatedTableName

List of usage examples for com.amazonaws.services.dynamodbv2.model ListTablesResult getLastEvaluatedTableName

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Introduction

In this page you can find the example usage for com.amazonaws.services.dynamodbv2.model ListTablesResult getLastEvaluatedTableName.

Prototype


public String getLastEvaluatedTableName()

Source Link

Document

The name of the last table in the current page of results.

Usage

From source file:aws.example.dynamodb.ListTables.java

License:Open Source License

public static void main(String[] args) {
    System.out.println("Your DynamoDB tables:\n");

    final AmazonDynamoDBClient ddb = new AmazonDynamoDBClient();

    boolean more_tables = true;
    while (more_tables) {
        String last_name = null;// w w w. j  a v  a 2 s  .  c  o m
        try {
            ListTablesResult table_list = null;
            if (last_name == null) {
                table_list = ddb.listTables();
            } else {
                table_list = ddb.listTables(last_name);
            }

            List<String> table_names = table_list.getTableNames();

            if (table_names.size() > 0) {
                for (String cur_name : table_names) {
                    System.out.format("* %s\n", cur_name);
                }
            } else {
                System.out.println("No tables found!");
                System.exit(0);
            }

            last_name = table_list.getLastEvaluatedTableName();
            if (last_name == null) {
                more_tables = false;
            }
        } catch (AmazonServiceException e) {
            System.err.println(e.getErrorMessage());
            System.exit(1);
        }
    }
    System.out.println("\nDone!");
}

From source file:com.amazon.janusgraph.diskstorage.dynamodb.ListTablesWorker.java

License:Open Source License

@Override
public ListTablesResult next() throws BackendException {
    final ListTablesResult result = delegate.listTables(request);
    if (result.getLastEvaluatedTableName() != null && !result.getLastEvaluatedTableName().isEmpty()) {
        request.setExclusiveStartTableName(result.getLastEvaluatedTableName());
    } else { //done
        markComplete();//from  w w  w. j a v a 2 s . c  o  m
    }

    // c add scanned items
    tableNames.addAll(result.getTableNames());
    return result;
}

From source file:com.erudika.para.persistence.AWSDynamoUtils.java

License:Apache License

/**
 * Lists all table names for this account.
 * @return a list of DynamoDB tables/*  w  ww .  j a  va  2s  . c om*/
 */
public static List<String> listAllTables() {
    int items = 100;
    ListTablesResult ltr = getClient().listTables(items);
    List<String> tables = new LinkedList<String>();
    String lastKey;
    do {
        tables.addAll(ltr.getTableNames());
        lastKey = ltr.getLastEvaluatedTableName();
        logger.info("Found {} tables. Total found: {}.", ltr.getTableNames().size(), tables.size());
        if (lastKey == null) {
            break;
        }
        ltr = getClient().listTables(lastKey, items);
    } while (!ltr.getTableNames().isEmpty());
    return tables;
}

From source file:com.intuit.tank.persistence.databases.AmazonDynamoDatabaseDocApi.java

License:Open Source License

/**
 * //ww w. ja  v a  2s.c  o m
 * @{inheritDoc
 */
@Override
public boolean hasTable(String tableName) {
    String nextTableName = null;
    do {
        ListTablesResult listTables = dynamoDb
                .listTables(new ListTablesRequest().withExclusiveStartTableName(nextTableName));
        for (String name : listTables.getTableNames()) {
            if (tableName.equalsIgnoreCase(name)) {
                return true;
            }
        }
        nextTableName = listTables.getLastEvaluatedTableName();
    } while (nextTableName != null);
    return false;
}

From source file:com.intuit.tank.persistence.databases.AmazonDynamoDatabaseDocApi.java

License:Open Source License

/**
 * /*from  w  ww .j av a 2  s.  c om*/
 * @{inheritDoc
 */
@Override
public Set<String> getTables(String regex) {
    Set<String> result = new HashSet<String>();
    String nextTableName = null;
    do {
        ListTablesResult listTables = dynamoDb
                .listTables(new ListTablesRequest().withExclusiveStartTableName(nextTableName));
        for (String s : listTables.getTableNames()) {
            if (s.matches(regex)) {
                result.add(s);
            }
        }
        nextTableName = listTables.getLastEvaluatedTableName();
    } while (nextTableName != null);

    return result;
}

From source file:com.makariev.dynamodb.data.tables.ModifyTablesService.java

License:Apache License

public List<TableDescription> showTables() {

    final List<TableDescription> result = new ArrayList<>();

    String lastEvaluatedTableName = null;
    do {/*from  www .jav a 2  s .c  o m*/

        final ListTablesRequest listTablesRequest = new ListTablesRequest().withLimit(10)
                .withExclusiveStartTableName(lastEvaluatedTableName);

        final ListTablesResult requestResult = client.listTables(listTablesRequest);
        lastEvaluatedTableName = requestResult.getLastEvaluatedTableName();

        for (String tableName : requestResult.getTableNames()) {
            final DescribeTableResult describeResult = client.describeTable(tableName);

            final TableDescription tableDescription = describeResult.getTable();
            result.add(tableDescription);
        }

    } while (lastEvaluatedTableName != null);

    return result;
}

From source file:Database.TableFunctions.java

public static String listMyTables() {
        ArrayList nameList = new ArrayList();
        String lastEvaluatedTableName = null;
        do {//from   w ww.  j  a  v  a  2 s .  c o m
            ListTablesRequest listTablesRequest = new ListTablesRequest().withLimit(10)
                    .withExclusiveStartTableName(lastEvaluatedTableName);
            ListTablesResult result = dynamoDB.listTables(listTablesRequest);
            lastEvaluatedTableName = result.getLastEvaluatedTableName();
            for (String name : result.getTableNames()) {
                System.out.println(name);
                nameList.add(name);
            }
        } while (lastEvaluatedTableName != null);
        return nameList.toString();
    }

From source file:dynamok.source.DynamoDbSourceConnector.java

License:Apache License

@Override
public void start(Map<String, String> props) {
    config = new ConnectorConfig(props);
    streamShards = new HashMap<>();

    final AmazonDynamoDBClient client;
    final AmazonDynamoDBStreamsClient streamsClient;

    if (config.accessKeyId.value().isEmpty() || config.secretKeyId.value().isEmpty()) {
        client = new AmazonDynamoDBClient();
        streamsClient = new AmazonDynamoDBStreamsClient();
        log.debug("AmazonDynamoDB clients created with default credentials");
    } else {//from w w  w . j a v  a2 s .  c  om
        BasicAWSCredentials awsCreds = new BasicAWSCredentials(config.accessKeyId.value(),
                config.secretKeyId.value());
        client = new AmazonDynamoDBClient(awsCreds);
        streamsClient = new AmazonDynamoDBStreamsClient(awsCreds);
        log.debug("AmazonDynamoDB clients created with AWS credentials from connector configuration");
    }

    client.configureRegion(config.region);
    streamsClient.configureRegion(config.region);

    final Set<String> ignoredTables = new HashSet<>();
    final Set<String> consumeTables = new HashSet<>();

    String lastEvaluatedTableName = null;
    do {
        final ListTablesResult listResult = client.listTables(lastEvaluatedTableName);

        for (String tableName : listResult.getTableNames()) {
            if (!acceptTable(tableName)) {
                ignoredTables.add(tableName);
                continue;
            }

            final TableDescription tableDesc = client.describeTable(tableName).getTable();

            final StreamSpecification streamSpec = tableDesc.getStreamSpecification();

            if (streamSpec == null || !streamSpec.isStreamEnabled()) {
                throw new ConnectException(
                        String.format("DynamoDB table `%s` does not have streams enabled", tableName));
            }

            final String streamViewType = streamSpec.getStreamViewType();
            if (!streamViewType.equals(StreamViewType.NEW_IMAGE.name())
                    && !streamViewType.equals(StreamViewType.NEW_AND_OLD_IMAGES.name())) {
                throw new ConnectException(String.format("DynamoDB stream view type for table `%s` is %s",
                        tableName, streamViewType));
            }

            final DescribeStreamResult describeStreamResult = streamsClient
                    .describeStream(new DescribeStreamRequest().withStreamArn(tableDesc.getLatestStreamArn()));

            for (Shard shard : describeStreamResult.getStreamDescription().getShards()) {
                streamShards.put(shard, tableDesc);
            }

            consumeTables.add(tableName);
        }

        lastEvaluatedTableName = listResult.getLastEvaluatedTableName();
    } while (lastEvaluatedTableName != null);

    log.info("Tables to ignore: {}", ignoredTables);
    log.info("Tables to ingest: {}", consumeTables);

    client.shutdown();
    streamsClient.shutdown();
}