Example usage for com.amazonaws.services.dynamodbv2.model WriteRequest getDeleteRequest

Introduction

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

Prototype

public DeleteRequest getDeleteRequest() 

Source Link

Document

A request to perform a DeleteItem operation.

Usage

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

License:Open Source License

public BatchWriteItemResult batchWriteItem(final BatchWriteItemRequest batchRequest) throws BackendException {
    int count = 0;
    for (Entry<String, List<WriteRequest>> entry : batchRequest.getRequestItems().entrySet()) {
        final String tableName = entry.getKey();
        final List<WriteRequest> requests = entry.getValue();
        count += requests.size();//from w  ww.  j  av a  2 s. c  o m
        if (count > BATCH_WRITE_MAX_NUMBER_OF_ITEMS) {
            throw new IllegalArgumentException("cant have more than 25 requests in a batchwrite");
        }
        for (final WriteRequest request : requests) {
            if ((request.getPutRequest() != null) == (request.getDeleteRequest() != null)) {
                throw new IllegalArgumentException(
                        "Exactly one of PutRequest or DeleteRequest must be set in each WriteRequest in a batch write operation");
            }
            final int wcu;
            final String apiName;
            if (request.getPutRequest() != null) {
                apiName = PUT_ITEM;
                final int bytes = calculateItemSizeInBytes(request.getPutRequest().getItem());
                wcu = computeWcu(bytes);
            } else { //deleterequest
                apiName = DELETE_ITEM;
                wcu = estimateCapacityUnits(apiName, tableName);
            }
            timedWriteThrottle(apiName, tableName, wcu);
        }
    }

    BatchWriteItemResult result;
    setUserAgent(batchRequest);
    final Timer.Context apiTimerContext = getTimerContext(BATCH_WRITE_ITEM, null /*tableName*/);
    try {
        result = client.batchWriteItem(batchRequest);
    } catch (Exception e) {
        throw processDynamoDbApiException(e, BATCH_WRITE_ITEM, null /*tableName*/);
    } finally {
        apiTimerContext.stop();
    }
    if (result.getConsumedCapacity() != null) {
        for (ConsumedCapacity ccu : result.getConsumedCapacity()) {
            meterConsumedCapacity(BATCH_WRITE_ITEM, ccu);
        }
    }
    return result;
}

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From source file:com.rapid7.diskstorage.dynamodb.DynamoDBDelegate.java

License:Open Source License

public BatchWriteItemResult batchWriteItem(BatchWriteItemRequest batchRequest) throws BackendException {
    int count = 0;
    for (Entry<String, java.util.List<WriteRequest>> entry : batchRequest.getRequestItems().entrySet()) {
        final String tableName = entry.getKey();
        final List<WriteRequest> requests = entry.getValue();
        count += requests.size();//  w  w w.java 2 s.co m
        if (count > 25) {
            throw new IllegalArgumentException("cant have more than 25 requests in a batchwrite");
        }
        for (WriteRequest request : requests) {
            if (!(request.getPutRequest() != null ^ request.getDeleteRequest() != null)) {
                throw new IllegalArgumentException(
                        "Exactly one of PutRequest or DeleteRequest must be set in each WriteRequest in a batch write operation");
            }
            final int wcu;
            final String apiName;
            if (request.getPutRequest() != null) {
                apiName = PUT_ITEM;
                final int bytes = calculateItemSizeInBytes(request.getPutRequest().getItem());
                wcu = computeWcu(bytes);
            } else { //deleterequest
                apiName = DELETE_ITEM;
                wcu = estimateCapacityUnits(apiName, tableName);
            }
            timedWriteThrottle(apiName, tableName, wcu);
        }
    }

    BatchWriteItemResult result;
    setUserAgent(batchRequest);
    final Timer.Context apiTimerContext = getTimerContext(BATCH_WRITE_ITEM, null /*tableName*/);
    try {
        result = client.batchWriteItem(batchRequest);
    } catch (Exception e) {
        throw processDynamoDBAPIException(e, BATCH_WRITE_ITEM, null /*tableName*/);
    } finally {
        apiTimerContext.stop();
    }
    if (result.getConsumedCapacity() != null) {
        for (ConsumedCapacity ccu : result.getConsumedCapacity()) {
            meterConsumedCapacity(BATCH_WRITE_ITEM, ccu);
        }
    }
    return result;
}

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From source file:org.apache.nifi.processors.aws.dynamodb.DeleteDynamoDB.java

License:Apache License

/**
 * {@inheritDoc}//from  www.j  a  v  a2 s.c om
 */
protected Map<String, AttributeValue> getRequestItem(WriteRequest writeRequest) {
    return writeRequest.getDeleteRequest().getKey();
}

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