Example usage for com.amazonaws.services.dynamodbv2.model KeyType HASH

Introduction

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

Prototype

KeyType HASH

To view the source code for com.amazonaws.services.dynamodbv2.model KeyType HASH.

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Usage

From source file:com.vivastream.security.oauth2.common.util.DynamoDBInitializationHelper.java

License:Apache License

public static void createHashTable(AmazonDynamoDBClient client, String tableName, String hashColumnName) {

    CreateTableRequest accessTableRequest = new CreateTableRequest() //
            .withTableName(tableName) //
            .withKeySchema(new KeySchemaElement(hashColumnName, KeyType.HASH)) //
            .withAttributeDefinitions(new AttributeDefinition(hashColumnName, ScalarAttributeType.S) //
            ) ///*from  www . j  a  va 2  s. c  om*/
            .withProvisionedThroughput(DEFAULT_PROVISIONED_THROUGHPUT) //
    ;

    CreateTableResult accessTableresponse = client.createTable(accessTableRequest);
}

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From source file:com.zhang.aws.dynamodb.AmazonDynamoDBSample.java

License:Open Source License

public static void main(String[] args) throws Exception {
    init();/*from w ww  .  ja va  2 s  .  c o  m*/

    try {
        String tableName = "my-favorite-movies-table";

        // Create table if it does not exist yet
        if (Tables.doesTableExist(dynamoDB, tableName)) {
            System.out.println("Table " + tableName + " is already ACTIVE");
        } else {
            // Create a table with a primary hash key named 'name', which holds a string
            CreateTableRequest createTableRequest = new CreateTableRequest().withTableName(tableName)
                    .withKeySchema(new KeySchemaElement().withAttributeName("name").withKeyType(KeyType.HASH))
                    .withAttributeDefinitions(new AttributeDefinition().withAttributeName("name")
                            .withAttributeType(ScalarAttributeType.S))
                    .withProvisionedThroughput(
                            new ProvisionedThroughput().withReadCapacityUnits(1L).withWriteCapacityUnits(1L));
            TableDescription createdTableDescription = dynamoDB.createTable(createTableRequest)
                    .getTableDescription();
            System.out.println("Created Table: " + createdTableDescription);

            // Wait for it to become active
            System.out.println("Waiting for " + tableName + " to become ACTIVE...");
            Tables.waitForTableToBecomeActive(dynamoDB, tableName);
        }

        // Describe our new table
        DescribeTableRequest describeTableRequest = new DescribeTableRequest().withTableName(tableName);
        TableDescription tableDescription = dynamoDB.describeTable(describeTableRequest).getTable();
        System.out.println("Table Description: " + tableDescription);

        // Add an item
        Map<String, AttributeValue> item = newItem("Bill & Ted's Excellent Adventure", 1989, "****", "James",
                "Sara");
        PutItemRequest putItemRequest = new PutItemRequest(tableName, item);
        PutItemResult putItemResult = dynamoDB.putItem(putItemRequest);
        System.out.println("Result: " + putItemResult);

        // Add another item
        item = newItem("Airplane", 1980, "*****", "James", "Billy Bob");
        putItemRequest = new PutItemRequest(tableName, item);
        putItemResult = dynamoDB.putItem(putItemRequest);
        System.out.println("Result: " + putItemResult);

        // Scan items for movies with a year attribute greater than 1985
        HashMap<String, Condition> scanFilter = new HashMap<String, Condition>();
        Condition condition = new Condition().withComparisonOperator(ComparisonOperator.GT.toString())
                .withAttributeValueList(new AttributeValue().withN("1985"));
        scanFilter.put("year", condition);
        ScanRequest scanRequest = new ScanRequest(tableName).withScanFilter(scanFilter);
        ScanResult scanResult = dynamoDB.scan(scanRequest);
        System.out.println("Result: " + scanResult);

    } catch (AmazonServiceException ase) {
        System.out.println("Caught an AmazonServiceException, which means your request made it "
                + "to AWS, but was rejected with an error response for some reason.");
        System.out.println("Error Message:    " + ase.getMessage());
        System.out.println("HTTP Status Code: " + ase.getStatusCode());
        System.out.println("AWS Error Code:   " + ase.getErrorCode());
        System.out.println("Error Type:       " + ase.getErrorType());
        System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
        System.out.println("Caught an AmazonClientException, which means the client encountered "
                + "a serious internal problem while trying to communicate with AWS, "
                + "such as not being able to access the network.");
        System.out.println("Error Message: " + ace.getMessage());
    }
}

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From source file:cs.iit.edu.ckmr.worker.MonitorTableCreator.java

License:Open Source License

public static void main(String[] args) throws Exception {
    init();//w w w.  j  a  v  a 2  s .  c  o  m
    long readCapacity = 2L;
    long writeCapacity = 2L;
    try {
        String tableName = "monitor";

        // DeleteTableRequest deleteTableRequest = new
        // DeleteTableRequest(tableName);
        // dynamoDB.deleteTable(deleteTableRequest);
        //
        // waitForTableToBecomeAvailable(tableName);

        // Create a table with a primary hash key named 'name', which holds
        // a string
        CreateTableRequest createTableRequest = new CreateTableRequest().withTableName(tableName)
                .withKeySchema(new KeySchemaElement().withAttributeName("id").withKeyType(KeyType.HASH))
                .withAttributeDefinitions(new AttributeDefinition().withAttributeName("id")
                        .withAttributeType(ScalarAttributeType.N))
                .withProvisionedThroughput(new ProvisionedThroughput().withReadCapacityUnits(readCapacity)
                        .withWriteCapacityUnits(writeCapacity));
        TableDescription createdTableDescription = dynamoDB.createTable(createTableRequest)
                .getTableDescription();
        System.out.println("Created Table: " + createdTableDescription);

        // Wait for it to become active
        waitForTableToBecomeAvailable(tableName);

        // Describe our new table
        DescribeTableRequest describeTableRequest = new DescribeTableRequest().withTableName(tableName);
        TableDescription tableDescription = dynamoDB.describeTable(describeTableRequest).getTable();
        System.out.println("Table Description: " + tableDescription);

    } catch (AmazonServiceException ase) {
        System.out.println("Caught an AmazonServiceException, which means your request made it "
                + "to AWS, but was rejected with an error response for some reason.");
        System.out.println("Error Message:    " + ase.getMessage());
        System.out.println("HTTP Status Code: " + ase.getStatusCode());
        System.out.println("AWS Error Code:   " + ase.getErrorCode());
        System.out.println("Error Type:       " + ase.getErrorType());
        System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
        System.out.println("Caught an AmazonClientException, which means the client encountered "
                + "a serious internal problem while trying to communicate with AWS, "
                + "such as not being able to access the network.");
        System.out.println("Error Message: " + ace.getMessage());
    }
}

---

From source file:cs.iit.edu.ckmr.worker.TableCreator.java

License:Open Source License

public void createTable(long readCapacity, long writeCapacity, String tableName) {
    // Create a table with a primary hash key named 'name', which holds
    // a string//from  www  . j a v  a 2s.  c  o m
    CreateTableRequest createTableRequest = new CreateTableRequest().withTableName(tableName)
            .withKeySchema(new KeySchemaElement().withAttributeName("messageId").withKeyType(KeyType.HASH))
            .withAttributeDefinitions(new AttributeDefinition().withAttributeName("messageId")
                    .withAttributeType(ScalarAttributeType.S))
            .withProvisionedThroughput(new ProvisionedThroughput().withReadCapacityUnits(readCapacity)
                    .withWriteCapacityUnits(writeCapacity));
    TableDescription createdTableDescription = dynamoDB.createTable(createTableRequest).getTableDescription();
    System.out.println("Created Table: " + createdTableDescription);

    // Wait for it to become active
    waitForTableToBecomeAvailable(tableName);

    // Describe our new table
    DescribeTableRequest describeTableRequest = new DescribeTableRequest().withTableName(tableName);
    TableDescription tableDescription = dynamoDB.describeTable(describeTableRequest).getTable();
    System.out.println("Table Description: " + tableDescription);
}

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From source file:Database.CustomerData.java

License:Open Source License

public static void main(String[] args) throws Exception {
    init();/*w  ww .  j  a v a 2s . c o m*/

    try {

        // Create table if it does not exist yet
        if (Tables.doesTableExist(dynamoDB, tableName)) {
            System.out.println("Table " + tableName + " is already ACTIVE");

        } else {
            // Create a table with a primary hash key Idd 'Id', which holds a string
            CreateTableRequest createTableRequest = new CreateTableRequest().withTableName(tableName)
                    .withKeySchema(new KeySchemaElement().withAttributeName("Id").withKeyType(KeyType.HASH))
                    .withAttributeDefinitions(new AttributeDefinition().withAttributeName("Id")
                            .withAttributeType(ScalarAttributeType.S))
                    .withProvisionedThroughput(
                            new ProvisionedThroughput().withReadCapacityUnits(1L).withWriteCapacityUnits(1L));
            TableDescription createdTableDescription = dynamoDB.createTable(createTableRequest)
                    .getTableDescription();
            System.out.println("Created Table: " + createdTableDescription);

            // Wait for it to become active
            System.out.println("Waiting for " + tableName + " to become ACTIVE...");
            Tables.waitForTableToBecomeActive(dynamoDB, tableName);

            // Describe our new table
            DescribeTableRequest describeTableRequest = new DescribeTableRequest().withTableName(tableName);
            TableDescription tableDescription = dynamoDB.describeTable(describeTableRequest).getTable();
            System.out.println("Table Description: " + tableDescription);

            // Add an item
            Map<String, AttributeValue> item = newItem("Nine Creatives on Creativity", "SQ_NS001", 2014,
                    "Squashouse", "Video");
            PutItemRequest putItemRequest = new PutItemRequest(tableName, item);
            PutItemResult putItemResult = dynamoDB.putItem(putItemRequest);

        }

    } catch (AmazonServiceException ase) {
        System.out.println("Caught an AmazonServiceException, which means your request made it "
                + "to AWS, but was rejected with an error response for some reason.");
        System.out.println("Error Message:    " + ase.getMessage());
        System.out.println("HTTP Status Code: " + ase.getStatusCode());
        System.out.println("AWS Error Code:   " + ase.getErrorCode());
        System.out.println("Error Type:       " + ase.getErrorType());
        System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
        System.out.println("Caught an AmazonClientException, which means the client encountered "
                + "a serious internal problem while trying to communicate with AWS, "
                + "such as not being able to access the network.");
        System.out.println("Error Message: " + ace.getMessage());
    }
}

---

From source file:Database.ProductData.java

License:Open Source License

public static void main(String[] args) throws Exception {
    init();//  w  w w .j a  va2 s . co  m

    try {
        String tableName = "CustomerData";

        // Create table if it does not exist yet
        if (Tables.doesTableExist(dynamoDB, tableName)) {
            System.out.println("Table " + tableName + " is already ACTIVE");
        } else {
            // Create a table with a primary hash key named 'name', which holds a string
            CreateTableRequest createTableRequest = new CreateTableRequest().withTableName(tableName)
                    .withKeySchema(new KeySchemaElement().withAttributeName("name").withKeyType(KeyType.HASH))
                    .withAttributeDefinitions(new AttributeDefinition().withAttributeName("name")
                            .withAttributeType(ScalarAttributeType.S))
                    .withProvisionedThroughput(
                            new ProvisionedThroughput().withReadCapacityUnits(1L).withWriteCapacityUnits(1L));
            TableDescription createdTableDescription = dynamoDB.createTable(createTableRequest)
                    .getTableDescription();
            System.out.println("Created Table: " + createdTableDescription);

            // Wait for it to become active
            System.out.println("Waiting for " + tableName + " to become ACTIVE...");
            Tables.waitForTableToBecomeActive(dynamoDB, tableName);
        }

        // Describe our new table
        DescribeTableRequest describeTableRequest = new DescribeTableRequest().withTableName(tableName);
        TableDescription tableDescription = dynamoDB.describeTable(describeTableRequest).getTable();
        System.out.println("Table Description: " + tableDescription);

        // Add an item
        Map<String, AttributeValue> item = newItem("Nine Creatives on Creativity", "SQ_NS001", 2014,
                "Squashouse", "Video");
        PutItemRequest putItemRequest = new PutItemRequest(tableName, item);
        PutItemResult putItemResult = dynamoDB.putItem(putItemRequest);
        //            System.out.println("Result: " + putItemResult);

        uploadSampleProducts(tableName);

        //            System.out.println("Result: " +         aQueryResult.withItems(item));

        // Scan items for movies with a year attribute greater than 1985
        HashMap<String, Condition> scanFilter = new HashMap<String, Condition>();
        Condition condition = new Condition().withComparisonOperator(ComparisonOperator.GT.toString())
                .withAttributeValueList(new AttributeValue().withN("1985"));
        scanFilter.put("year", condition);
        ScanRequest scanRequest = new ScanRequest(tableName).withScanFilter(scanFilter);
        ScanResult scanResult = dynamoDB.scan(scanRequest);
        System.out.println("Result: " + scanResult);

    } catch (AmazonServiceException ase) {
        System.out.println("Caught an AmazonServiceException, which means your request made it "
                + "to AWS, but was rejected with an error response for some reason.");
        System.out.println("Error Message:    " + ase.getMessage());
        System.out.println("HTTP Status Code: " + ase.getStatusCode());
        System.out.println("AWS Error Code:   " + ase.getErrorCode());
        System.out.println("Error Type:       " + ase.getErrorType());
        System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
        System.out.println("Caught an AmazonClientException, which means the client encountered "
                + "a serious internal problem while trying to communicate with AWS, "
                + "such as not being able to access the network.");
        System.out.println("Error Message: " + ace.getMessage());
    }
}

---

From source file:Database.TableFunctions.java

public static void createTable() {
        ProvisionedThroughput provisionedThroughput = new ProvisionedThroughput().withReadCapacityUnits(5L)
                .withWriteCapacityUnits(5L);
        CreateTableRequest request = new CreateTableRequest().withTableName(tablename)
                .withProvisionedThroughput(provisionedThroughput);

        ArrayList<AttributeDefinition> attributeDefinitions = new ArrayList<AttributeDefinition>();// --------creates empty list of attributes ------
        attributeDefinitions.add(new AttributeDefinition().withAttributeName(attributeKey).withAttributeType("S"));
        request.setAttributeDefinitions(attributeDefinitions);

        ArrayList<KeySchemaElement> tableKeySchema = new ArrayList<KeySchemaElement>();// --------creates empty list of keys ------
        tableKeySchema.add(new KeySchemaElement().withAttributeName(attributeKey).withKeyType(KeyType.HASH));
        request.setKeySchema(tableKeySchema);

        dynamoDB.createTable(request);//from   w w w .jav  a 2 s.co  m
        waitForTableToBecomeAvailable(tablename);
        getTableInformation();
    }

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From source file:dynamodb.CrudOperationsOnDynamoDBTable.java

License:Open Source License

static void createExampleTable() {

    try {/* ww  w .ja  va 2  s  . c o  m*/
        System.out.println("Creating table ...");
        ArrayList<AttributeDefinition> attributeDefinitions = new ArrayList<AttributeDefinition>();
        attributeDefinitions.add(new AttributeDefinition().withAttributeName("Id").withAttributeType("N"));

        ArrayList<KeySchemaElement> keySchema = new ArrayList<KeySchemaElement>();
        keySchema.add(new KeySchemaElement().withAttributeName("Id").withKeyType(KeyType.HASH)); //Partition key
        CreateTableRequest request = new CreateTableRequest().withTableName(tableName).withKeySchema(keySchema)
                .withAttributeDefinitions(attributeDefinitions).withProvisionedThroughput(
                        new ProvisionedThroughput().withReadCapacityUnits(5L).withWriteCapacityUnits(6L));

        System.out.println("Issuing CreateTable request for " + tableName);
        Table table = dynamoDB.createTable(request);

        System.out.println("Waiting for " + tableName + " to be created...this may take a while...");
        table.waitForActive();
        System.out.println(tableName + " table activated successfully ...");
        getTableInformation();

    } catch (Exception e) {
        System.err.println("CreateTable request failed for " + tableName);
        System.err.println(e.getMessage());
    }

}

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From source file:DynamoDB.sample.CreateTablesLoadData.java

License:Open Source License

private static void createTable(String tableName, long readCapacityUnits, long writeCapacityUnits,
        String partitionKeyName, String partitionKeyType, String sortKeyName, String sortKeyType) {

    try {//from   w w w .j  a  va2s.  com

        ArrayList<KeySchemaElement> keySchema = new ArrayList<KeySchemaElement>();
        keySchema.add(new KeySchemaElement().withAttributeName(partitionKeyName).withKeyType(KeyType.HASH)); //Partition key

        ArrayList<AttributeDefinition> attributeDefinitions = new ArrayList<AttributeDefinition>();
        attributeDefinitions.add(new AttributeDefinition().withAttributeName(partitionKeyName)
                .withAttributeType(partitionKeyType));

        if (sortKeyName != null) {
            keySchema.add(new KeySchemaElement().withAttributeName(sortKeyName).withKeyType(KeyType.RANGE)); //Sort key
            attributeDefinitions.add(
                    new AttributeDefinition().withAttributeName(sortKeyName).withAttributeType(sortKeyType));
        }

        CreateTableRequest request = new CreateTableRequest().withTableName(tableName).withKeySchema(keySchema)
                .withProvisionedThroughput(new ProvisionedThroughput().withReadCapacityUnits(readCapacityUnits)
                        .withWriteCapacityUnits(writeCapacityUnits));

        // If this is the Reply table, define a local secondary index
        if (replyTableName.equals(tableName)) {

            attributeDefinitions
                    .add(new AttributeDefinition().withAttributeName("PostedBy").withAttributeType("S"));

            ArrayList<LocalSecondaryIndex> localSecondaryIndexes = new ArrayList<LocalSecondaryIndex>();
            localSecondaryIndexes.add(new LocalSecondaryIndex().withIndexName("PostedBy-Index")
                    .withKeySchema(
                            new KeySchemaElement().withAttributeName(partitionKeyName)
                                    .withKeyType(KeyType.HASH), //Partition key
                            new KeySchemaElement().withAttributeName("PostedBy").withKeyType(KeyType.RANGE)) //Sort key
                    .withProjection(new Projection().withProjectionType(ProjectionType.KEYS_ONLY)));

            request.setLocalSecondaryIndexes(localSecondaryIndexes);
        }

        request.setAttributeDefinitions(attributeDefinitions);

        System.out.println("Issuing CreateTable request for " + tableName);
        Table table = dynamoDB.createTable(request);
        System.out.println("Waiting for " + tableName + " to be created...this may take a while...");
        table.waitForActive();

    } catch (Exception e) {
        System.err.println("CreateTable request failed for " + tableName);
        System.err.println(e.getMessage());
    }
}

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From source file:eu.roschi.obdkinesis.utils.DynamoDBUtils.java

License:Open Source License

/**
 * Creates the table to store our counts in with a hash key of "resource" and a range key of "timestamp" so we can
 * query counts for a given resource by time. This uses an initial provisioned throughput of 10 read capacity units
 * and 5 write capacity units/* w w  w .j  av  a2 s.  co m*/
 *
 * @param tableName The name of the table to create.
 */
public void createCountTableIfNotExists(String tableName) {
    List<KeySchemaElement> ks = new ArrayList<>();
    ks.add(new KeySchemaElement().withKeyType(KeyType.HASH).withAttributeName(ATTRIBUTE_NAME_HASH_KEY));
    ks.add(new KeySchemaElement().withKeyType(KeyType.RANGE).withAttributeName(ATTRIBUTE_NAME_RANGE_KEY));

    ArrayList<AttributeDefinition> attributeDefinitions = new ArrayList<>();
    attributeDefinitions.add(new AttributeDefinition().withAttributeName(ATTRIBUTE_NAME_HASH_KEY)
            .withAttributeType(ScalarAttributeType.S));
    // Range key must be a String. DynamoDBMapper translates Dates to ISO8601 strings.
    attributeDefinitions.add(new AttributeDefinition().withAttributeName(ATTRIBUTE_NAME_RANGE_KEY)
            .withAttributeType(ScalarAttributeType.S));

    // Create the table with enough write IOPS to handle 5 distinct resources updated every 1 second:
    // 1 update/second * 5 resources = 5 write IOPS.
    // The provisioned throughput will need to be adjusted if the cadinality of the input data or the interval for
    // updates changes.
    CreateTableRequest createTableRequest = new CreateTableRequest().withTableName(tableName)
            .withProvisionedThroughput(new ProvisionedThroughput(1L, 1L)).withKeySchema(ks)
            .withAttributeDefinitions(attributeDefinitions);

    try {
        dynamoDB.createTable(createTableRequest);

        LOG.info(String.format("Created DynamoDB table: %s. Waiting up to 5 minutes for it to become ACTIVE...",
                tableName));
        // Wait 5 minutes for the table to become ACTIVE
        if (!waitUntilTableIsActive(tableName, 10, TimeUnit.MINUTES.toSeconds(5))) {
            throw new IllegalStateException(
                    String.format("Timed out while waiting for DynamoDB table %s to become ready", tableName));
        }
    } catch (ResourceInUseException ex) {
        // Assume table exists and is ready to use
    }
}

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