Examples with PollingStrategy com.amazonaws.waiters.PollingStrategy used on opensource projects

Example 1 with PollingStrategy

use of com.amazonaws.waiters.PollingStrategy in project spring-integration-aws by spring-projects.

the class DynamoDbMetaDataStore method afterPropertiesSet.

@Override
public void afterPropertiesSet() throws Exception {
    try {
        this.table.describe();
        this.createTableLatch.countDown();
        return;
    } catch (ResourceNotFoundException e) {
        if (logger.isInfoEnabled()) {
            logger.info("No table '" + this.table.getTableName() + "'. Creating one...");
        }
    }
    CreateTableRequest createTableRequest = new CreateTableRequest().withTableName(this.table.getTableName()).withKeySchema(new KeySchemaElement(KEY, KeyType.HASH)).withAttributeDefinitions(new AttributeDefinition(KEY, ScalarAttributeType.S)).withProvisionedThroughput(new ProvisionedThroughput(this.readCapacity, this.writeCapacity));
    this.dynamoDB.createTableAsync(createTableRequest, new AsyncHandler<CreateTableRequest, CreateTableResult>() {

        @Override
        public void onError(Exception e) {
            logger.error("Cannot create DynamoDb table: " + DynamoDbMetaDataStore.this.table.getTableName(), e);
            DynamoDbMetaDataStore.this.createTableLatch.countDown();
        }

        @Override
        public void onSuccess(CreateTableRequest request, CreateTableResult createTableResult) {
            Waiter<DescribeTableRequest> waiter = DynamoDbMetaDataStore.this.dynamoDB.waiters().tableExists();
            WaiterParameters<DescribeTableRequest> waiterParameters = new WaiterParameters<>(new DescribeTableRequest(DynamoDbMetaDataStore.this.table.getTableName())).withPollingStrategy(new PollingStrategy(new MaxAttemptsRetryStrategy(DynamoDbMetaDataStore.this.createTableRetries), new FixedDelayStrategy(DynamoDbMetaDataStore.this.createTableDelay)));
            waiter.runAsync(waiterParameters, new WaiterHandler<DescribeTableRequest>() {

                @Override
                public void onWaitSuccess(DescribeTableRequest request) {
                    DynamoDbMetaDataStore.this.createTableLatch.countDown();
                    DynamoDbMetaDataStore.this.table.describe();
                }

                @Override
                public void onWaitFailure(Exception e) {
                    logger.error("Cannot describe DynamoDb table: " + DynamoDbMetaDataStore.this.table.getTableName(), e);
                    DynamoDbMetaDataStore.this.createTableLatch.countDown();
                }
            });
        }
    });
}

Example 2 with PollingStrategy

use of com.amazonaws.waiters.PollingStrategy in project spring-integration-aws by spring-projects.

the class DynamoDbMetadataStoreTests method setup.

@BeforeClass
public static void setup() throws Exception {
    AmazonDynamoDBAsync dynamoDB = DYNAMO_DB_RUNNING.getDynamoDB();
    try {
        dynamoDB.deleteTableAsync(TEST_TABLE);
        Waiter<DescribeTableRequest> waiter = dynamoDB.waiters().tableNotExists();
        waiter.run(new WaiterParameters<>(new DescribeTableRequest(TEST_TABLE)).withPollingStrategy(new PollingStrategy(new MaxAttemptsRetryStrategy(25), new FixedDelayStrategy(1))));
    } catch (Exception e) {
    }
    store = new DynamoDbMetaDataStore(dynamoDB, TEST_TABLE);
    store.afterPropertiesSet();
}