Example usage for com.amazonaws.regions ServiceAbbreviations Dynamodb

Introduction

In this page you can find the example usage for com.amazonaws.regions ServiceAbbreviations Dynamodb.

Prototype

String Dynamodb

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Usage

From source file:com.optimalbi.AmazonAccount.java

License:Apache License

private void populateDynamoDB() throws AmazonClientException {
    getRegions().stream().filter(region -> region.isServiceSupported(ServiceAbbreviations.Dynamodb))
            .forEach(region -> {/*from  w  ww  . ja v  a 2  s. c  o  m*/
                AmazonDynamoDBClient DDB = new AmazonDynamoDBClient(credentials.getCredentials());
                DDB.setRegion(region);
                DynamoDB dynamoDB = new DynamoDB(DDB);
                TableCollection<ListTablesResult> tables = dynamoDB.listTables();
                tables.forEach(table -> services.add(new LocalDynamoDBService(table.getTableName(), credentials,
                        region, table.describe(), logger)));
            });
}

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From source file:org.apache.hadoop.dynamodb.DynamoDBUtil.java

License:Open Source License

/**
 * Calculates DynamoDB end-point.//from  w  ww  .j ava  2  s.  c om
 *
 * Algorithm details:
 * <ol>
 * <li> Use endpoint in job configuration "dynamodb.endpoint" value if available
 * <li> Use endpoint from region in job configuration "dynamodb.region" value if available
 * <li> Use endpoint from region in job configuration "dynamodb.regionid" value if available
 * <li> Use endpoint from EC2 Metadata of instance if available
 * <li> If all previous attempts at retrieving endpoint fail, default to us-east-1 endpoint
 * </ol>
 *
 * @param conf   Job Configuration
 * @param region optional preferred region
 * @return end-point for DynamoDb service
 */
public static String getDynamoDBEndpoint(Configuration conf, String region) {
    String endpoint = getValueFromConf(conf, DynamoDBConstants.ENDPOINT);
    if (Strings.isNullOrEmpty(endpoint)) {
        if (Strings.isNullOrEmpty(region)) {
            region = getValueFromConf(conf, DynamoDBConstants.REGION);
        }
        if (Strings.isNullOrEmpty(region)) {
            region = getValueFromConf(conf, DynamoDBConstants.REGION_ID);
        }
        if (Strings.isNullOrEmpty(region)) {
            try {
                region = EC2MetadataUtils.getEC2InstanceRegion();
            } catch (Exception e) {
                log.warn(String.format("Exception when attempting to get AWS region information. Will "
                        + "ignore and default " + "to %s", DynamoDBConstants.DEFAULT_AWS_REGION), e);
            }
        }
        if (Strings.isNullOrEmpty(region)) {
            region = DynamoDBConstants.DEFAULT_AWS_REGION;
        }
        endpoint = RegionUtils.getRegion(region).getServiceEndpoint(ServiceAbbreviations.Dynamodb);
    }
    log.info("Using endpoint for DynamoDB: " + endpoint);
    return endpoint;
}

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