Example usage for com.amazonaws.services.dynamodbv2.model ProvisionedThroughputDescription equals

Introduction

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

Prototype

@Override
    public boolean equals(Object obj) 

Source Link

Usage

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  w  w.j a v  a  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);

}

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