Example usage for com.amazonaws.services.dynamodbv2.document DynamoDB DynamoDB

List of usage examples for com.amazonaws.services.dynamodbv2.document DynamoDB DynamoDB

  1. HOME
  2. Java
  3. com.amazonaws
  4. com.amazonaws.services.dynamodbv2.document.*
  5. DynamoDB
  6. DynamoDB

Introduction

In this page you can find the example usage for com.amazonaws.services.dynamodbv2.document DynamoDB DynamoDB.

Prototype

public DynamoDB(Regions regionEnum)

Source Link

Document

Create a DynamoDB object that talks to the specified AWS region.

Usage

From source file:com.envirover.spl.stream.MAVLinkMessagesTable.java

License:Open Source License

public MAVLinkMessagesTable() {
    if (System.getenv(SPL_DYNAMODB_TABLE) != null) {
        tableName = System.getenv(SPL_DYNAMODB_TABLE);
    }/*from   w w w .j a v  a 2s  . c  o m*/

    AmazonDynamoDB dynamoDBClient = AmazonDynamoDBClientBuilder.defaultClient();

    DynamoDB dynamoDB = new DynamoDB(dynamoDBClient);

    table = dynamoDB.getTable(tableName);
}

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

License:Apache License

/**
 * Returns a client instance for AWS DynamoDB.
 * @return a client that talks to DynamoDB
 */// w  w w . ja  va 2  s  . c  om
public static AmazonDynamoDBClient getClient() {
    if (ddbClient != null) {
        return ddbClient;
    }

    if (Config.IN_PRODUCTION) {
        Region region = Regions.getCurrentRegion();
        region = region != null ? region : Region.getRegion(Regions.fromName(Config.AWS_REGION));
        ddbClient = new AmazonDynamoDBClient(
                new BasicAWSCredentials(Config.AWS_ACCESSKEY, Config.AWS_SECRETKEY)).withRegion(region);

    } else {
        ddbClient = new AmazonDynamoDBClient(new BasicAWSCredentials("local", "null"))
                .withEndpoint(LOCAL_ENDPOINT);
    }

    if (!existsTable(Config.APP_NAME_NS)) {
        createTable(Config.APP_NAME_NS);
    }

    ddb = new DynamoDB(ddbClient);

    Para.addDestroyListener(new DestroyListener() {
        public void onDestroy() {
            shutdownClient();
        }
    });

    return ddbClient;
}

From source file:com.euclidespaim.dynamodb.CreateTableFunction.java

License:Open Source License

public static void main(String[] args) throws Exception {

    AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard().withEndpointConfiguration(
            new AwsClientBuilder.EndpointConfiguration("https://dynamodb.us-east-1.amazonaws.com", "us-east-1"))
            .build();//from  ww  w  .j a v  a2 s .co m

    DynamoDB dynamoDB = new DynamoDB(client);

    String tableName = "Movies";

    try {
        System.out.println("Attempting to create table; please wait...");
        Table table = dynamoDB.createTable(tableName, Arrays.asList(new KeySchemaElement("year", KeyType.HASH), // Partition
                // key
                new KeySchemaElement("title", KeyType.RANGE)), // Sort key
                Arrays.asList(new AttributeDefinition("year", ScalarAttributeType.N),
                        new AttributeDefinition("title", ScalarAttributeType.S)),
                new ProvisionedThroughput(10L, 10L));
        table.waitForActive();
        System.out.println("Success.  Table status: " + table.getDescription().getTableStatus());

    } catch (Exception e) {
        System.err.println("Unable to create table: ");
        System.err.println(e.getMessage());
    }

}

From source file:com.exorath.service.lobbymsg.impl.DynamoDBProvider.java

License:Apache License

public DynamoDB getDB() {
    AWSCredentials credentials = new EnvironmentVariableCredentialsProvider().getCredentials();
    return new DynamoDB(new AmazonDynamoDBClient(credentials).withRegion(Regions.EU_CENTRAL_1));
}

From source file:com.github.sdmcraft.slingdynamo.impl.DynamoDBResourceProviderFactory.java

License:Open Source License

/**
 * Activate./*from w  w  w .  ja v  a 2s .c  o  m*/
 *
 * @param context the context
 * @param config the config
 */
@Activate
protected void activate(BundleContext context, Map<String, Object> config) {
    this.root = PropertiesUtil.toString(config.get(ResourceProvider.ROOTS), DEFAULT_ROOT);

    if ((this.root == null) || this.root.isEmpty()) {
        this.root = DEFAULT_ROOT;
    }

    this.resourceType = PropertiesUtil.toString(config.get(SlingConstants.PROPERTY_RESOURCE_TYPE),
            Constants.DEFAULT_GET_SERVLET);

    if ((this.resourceType == null) || this.resourceType.isEmpty()) {
        this.resourceType = Constants.DEFAULT_GET_SERVLET;
    }

    dynamoDBClient = new AmazonDynamoDBClient(awsCredentialsProvider.getCredentials());

    this.region = PropertiesUtil.toString(config.get(PROP_REGION), Constants.DEFAULT_REGION);

    if ((this.region != null) && !this.region.isEmpty()) {
        Region awsRegion = Region.getRegion(Regions.fromName(region));
        dynamoDBClient.setRegion(awsRegion);
    }

    this.endpoint = PropertiesUtil.toString(config.get(PROP_ENDPOINT), Constants.DEFAULT_ENDPOINT);

    if ((this.endpoint != null) && !this.endpoint.isEmpty()) {
        dynamoDBClient.setEndpoint(this.endpoint);
    }

    dynamoDB = new DynamoDB(dynamoDBClient);
}

From source file:com.innoq.hagmans.bachelor.TemperatureConsumer.java

License:Open Source License

public static void main(String[] args) throws InterruptedException {
    if (args.length == 2) {
        streamName = args[0];//from w w  w .  j a v a2  s.co  m
        db_name = args[1];
    }

    // Initialize Utils
    KinesisClientLibConfiguration config = new KinesisClientLibConfiguration(db_name, streamName,
            new DefaultAWSCredentialsProviderChain(), "KinesisProducerLibSampleConsumer")
                    .withRegionName(TemperatureProducer.REGION)
                    .withInitialPositionInStream(InitialPositionInStream.TRIM_HORIZON);

    Region region = RegionUtils.getRegion(TemperatureProducer.REGION);
    AWSCredentialsProvider credentialsProvider = new DefaultAWSCredentialsProviderChain();
    AmazonDynamoDB amazonDynamoDB = new AmazonDynamoDBClient(credentialsProvider, new ClientConfiguration());
    AmazonDynamoDBClient client = new AmazonDynamoDBClient(credentialsProvider);
    client.setRegion(region);
    DynamoDB dynamoDB = new DynamoDB(client);
    amazonDynamoDB.setRegion(region);
    DynamoDBUtils dbUtils = new DynamoDBUtils(dynamoDB, amazonDynamoDB, client);
    AmazonKinesis kinesis = new AmazonKinesisClient(credentialsProvider, new ClientConfiguration());
    kinesis.setRegion(region);
    StreamUtils streamUtils = new StreamUtils(kinesis);
    try {
        if (!streamUtils.isActive(kinesis.describeStream(streamName))) {
            log.info("Stream is not active. Waiting for Stream to become active....");
            streamUtils.waitForStreamToBecomeActive(streamName);
        }
    } catch (ResourceNotFoundException e) {
        log.info("Stream is not created right now. Waiting for stream to get created and become active....");
        streamUtils.waitForStreamToBecomeActive(streamName);
    }
    dbUtils.deleteTable(db_name);
    dbUtils.createTemperatureTableIfNotExists(tableName);

    Thread.sleep(1000);

    final TemperatureConsumer consumer = new TemperatureConsumer();

    new Worker.Builder().recordProcessorFactory(consumer).config(config).build().run();
}

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

License:Open Source License

private void addItemsToTable(String tableName, final BatchWriteItemRequest request) {

    boolean shouldRetry;
    int retries = 0;

    do {/*from   w ww.  j a  va  2  s. c  o m*/
        shouldRetry = false;
        try {
            BatchWriteItemResult result = dynamoDb.batchWriteItem(request);
            if (result != null) {
                try {
                    List<ConsumedCapacity> consumedCapacity = result.getConsumedCapacity();
                    for (ConsumedCapacity cap : consumedCapacity) {
                        logger.info(cap.getCapacityUnits());
                    }
                } catch (Exception e) {
                    // ignore this
                }
            }
        } catch (AmazonServiceException e) {
            if (e instanceof ProvisionedThroughputExceededException) {
                try {
                    DynamoDB db = new DynamoDB(dynamoDb);
                    Table table = db.getTable(tableName);
                    ProvisionedThroughputDescription oldThroughput = table.getDescription()
                            .getProvisionedThroughput();
                    logger.info("ProvisionedThroughputExceeded throughput = " + oldThroughput);
                    ProvisionedThroughput newThroughput = new ProvisionedThroughput()
                            .withReadCapacityUnits(
                                    table.getDescription().getProvisionedThroughput().getReadCapacityUnits())
                            .withWriteCapacityUnits(getIncreasedThroughput(
                                    table.getDescription().getProvisionedThroughput().getReadCapacityUnits()));
                    if (!oldThroughput.equals(newThroughput)) {
                        logger.info("Updating throughput to " + newThroughput);
                        table.updateTable(newThroughput);
                        table.waitForActive();
                    }
                } catch (Exception e1) {
                    logger.error("Error increasing capacity: " + e, e);
                }
            }
            int status = e.getStatusCode();
            if (status == HttpStatus.SC_INTERNAL_SERVER_ERROR || status == HttpStatus.SC_SERVICE_UNAVAILABLE) {
                shouldRetry = true;
                long delay = (long) (Math.random() * (Math.pow(4, retries++) * 100L));
                try {
                    Thread.sleep(delay);
                } catch (InterruptedException iex) {
                    logger.error("Caught InterruptedException exception", iex);
                }
            } else {
                logger.error("Error writing to DB: " + e.getMessage());
                throw new RuntimeException(e);
            }
        }
    } while (shouldRetry && retries < MAX_NUMBER_OF_RETRIES);

}

From source file:com.kitac.kinesissamples.consumer.communication.DynamoDBManager.java

License:Open Source License

private DynamoDBManager() {
    config = new ClientConfiguration();

    /* TODO: ClientConfiguration setting code is here. */

    AmazonDynamoDBClient client = new AmazonDynamoDBClient(
            // For use IAM role, specify DefaultAWSCredentialsProviderChain instance.
            new DefaultAWSCredentialsProviderChain(), config);

    client.setRegion(Regions.AP_NORTHEAST_1);

    dynamoDBConnection = new DynamoDB(client);
}

From source file:com.netflix.hollow.example.consumer.infrastructure.DynamoDBAnnouncementWatcher.java

License:Apache License

public DynamoDBAnnouncementWatcher(AWSCredentials credentials, String tableName, String blobNamespace) {
    this.dynamoDB = new DynamoDB(new AmazonDynamoDBClient(credentials));
    this.tableName = tableName;
    this.blobNamespace = blobNamespace;
    this.latestVersion = readLatestVersion();
}

From source file:com.netflix.hollow.example.producer.infrastructure.DynamoDBAnnouncer.java

License:Apache License

public DynamoDBAnnouncer(AWSCredentials credentials, String tableName, String blobNamespace) {
    this.dynamoDB = new DynamoDB(new AmazonDynamoDBClient(credentials));
    this.tableName = tableName;
    this.blobNamespace = blobNamespace;
}