Example usage for com.amazonaws.services.dynamodbv2.model AttributeValue AttributeValue

Introduction

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

Prototype

public AttributeValue(java.util.List<String> sS) 

Source Link

Document

Constructs a new AttributeValue object.

Usage

From source file:NYSELoad.java

License:Open Source License

private static Map<String, AttributeValue> newItem(NyseParser nyseParser) {
    Map<String, AttributeValue> item = new HashMap<String, AttributeValue>();
    item.put("stockTicker", new AttributeValue(nyseParser.getStockTicker()));
    item.put("tradeDate", new AttributeValue(nyseParser.getTransactionDate()));
    item.put("lp", new AttributeValue().withN(Float.toString(nyseParser.getLowPrice())));
    item.put("op", new AttributeValue().withN(Float.toString(nyseParser.getOpenPrice())));
    item.put("cp", new AttributeValue().withN(Float.toString(nyseParser.getClosePrice())));
    item.put("hp", new AttributeValue().withN(Float.toString(nyseParser.getHighPrice())));
    item.put("v", new AttributeValue().withN(Float.toString(nyseParser.getVolume())));

    return item;//from  w  ww.  j  a v a  2  s  .c  o m
}

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From source file:whgHelper.java

License:Open Source License

public static Map<String, AttributeValue> newAlert(String alertMessageBody) {
    Map<String, AttributeValue> alert = new HashMap<String, AttributeValue>();

    // parse JSON in message body
    System.out.println("");
    System.out.println("Alert Attributes: " + String.valueOf(System.currentTimeMillis()));
    System.out.println("   sourceID: " + String.valueOf(System.currentTimeMillis()));
    System.out.println("   something: adt" + String.valueOf(System.currentTimeMillis()));
    System.out.println("   alertmessagebody: " + alertMessageBody);

    Random rn = new Random();
    int source = rn.nextInt(10) + 1;

    alert.put("alertId", new AttributeValue(String.valueOf(System.currentTimeMillis())));
    alert.put("alertSourceId", new AttributeValue(String.valueOf(source)));
    alert.put("alertDateTime", new AttributeValue("adt" + String.valueOf(System.currentTimeMillis())));
    alert.put("alertMessageBody", new AttributeValue(alertMessageBody));
    alert.put("alertPersistedDateTime",
            new AttributeValue().withN(Double.toString(System.currentTimeMillis())));
    return alert;
}

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From source file:AmazonDynamoDBSample_PutThrottled.java

License:Open Source License

private static Thread newItemCreationThread(String tableName, final int thrdNo) {
    final int ITEM_COUNTS = 1000 * 1000;
    return new Thread(() -> {
        for (int c = 0; c < ITEM_COUNTS; c++) {
            Map<String, AttributeValue> item = new HashMap<>();
            String pk = String.format("pk name: thrd %d creates %dth item", thrdNo, c);
            item.put("name", new AttributeValue(pk));

            PutItemRequest req = new PutItemRequest(tableName, item);
            req.setReturnValues(ReturnValue.ALL_OLD);
            PutItemResult res = null;//from   ww  w . j a  v a  2s.  c  o m
            long t = System.currentTimeMillis();
            try {
                res = dynamoDB.putItem(req);
            } catch (Exception exob) {
                exob.printStackTrace();
            }
            assert 0 == res.getAttributes().size();
            System.out.printf("%s. takes %d ms\n", pk, System.currentTimeMillis() - t);
        }
    });
}

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From source file:AmazonDynamoDBSample_PutThrottled.java

License:Open Source License

private static Map<String, AttributeValue> newItem(String name, int year, String rating, String... fans) {
    Map<String, AttributeValue> item = new HashMap<String, AttributeValue>();
    item.put("name", new AttributeValue(name));
    item.put("year", new AttributeValue().withN(Integer.toString(year)));
    item.put("rating", new AttributeValue(rating));
    item.put("fans", new AttributeValue().withSS(fans));

    return item;/* w  ww .  jav  a 2  s  . c  o  m*/
}

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From source file:ProductCategoryPriceIndex.java

License:Open Source License

private static Map<String, AttributeValue> newItem(String category, int priceIndex, String... products) {
    Map<String, AttributeValue> item = new HashMap<String, AttributeValue>();
    item.put("category", new AttributeValue(category));
    item.put("priceIndex", new AttributeValue().withN(Integer.toString(priceIndex)));
    item.put("products", new AttributeValue().withSS(products));

    return item;/*from  ww w  .  j av a2s  . c  om*/
}

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From source file:VideoServlet.java

private static String getItem(String keyVal) {

    Map<String, AttributeValue> key = new HashMap<String, AttributeValue>();
    key.put("ID", new AttributeValue(keyVal));

    GetItemRequest getItemRequest = new GetItemRequest().withTableName(TABLENAME).withKey(key);

    GetItemResult item = dynamoDBClient.getItem(getItemRequest);

    System.out.println("Get Result: " + item);
    return item.toString();
}

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From source file:amazonsensors.LambdaAmazonSensor.java

@Override
public String handleRequest(AmazonSensor sensor, Context cntxt) {

    AmazonDynamoDB amazonDDB = AmazonDynamoDBClientBuilder.standard().withRegion(Regions.US_WEST_2).build();

    Map<String, AttributeValue> item = new HashMap();
    item.put(SENSOR_FIELD, new AttributeValue(sensor.getSensorID()));
    item.put(TEMPERATURE_FIELD, new AttributeValue(sensor.getTemperature()));

    amazonDDB.putItem(TABLE_NAME, item);

    return sensor.toString();
}

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From source file:aws.example.dynamodb.DeleteItem.java

License:Open Source License

public static void main(String[] args) {
    final String USAGE = "\n" + "Usage:\n" + "    DeleteItem <table> <name>\n\n" + "Where:\n"
            + "    table - the table to delete the item from.\n"
            + "    name  - the item to delete from the table,\n"
            + "            using the primary key \"Name\"\n\n" + "Example:\n"
            + "    DeleteItem HelloTable World\n\n" + "**Warning** This program will actually delete the item\n"
            + "            that you specify!\n";

    if (args.length < 2) {
        System.out.println(USAGE);
        System.exit(1);/* www. j  av a2 s .c o  m*/
    }

    String table_name = args[0];
    String name = args[1];

    System.out.format("Deleting item \"%s\" from %s\n", name, table_name);

    HashMap<String, AttributeValue> key_to_get = new HashMap<String, AttributeValue>();

    key_to_get.put("Name", new AttributeValue(name));

    final AmazonDynamoDBClient ddb = new AmazonDynamoDBClient();

    try {
        ddb.deleteItem(table_name, key_to_get);
    } catch (AmazonServiceException e) {
        System.err.println(e.getErrorMessage());
        System.exit(1);
    }

    System.out.println("Done!");
}

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From source file:aws.example.dynamodb.GetItem.java

License:Open Source License

public static void main(String[] args) {
    final String USAGE = "\n" + "Usage:\n" + "    GetItem <table> <name> [projection_expression]\n\n"
            + "Where:\n" + "    table - the table to get an item from.\n" + "    name  - the item to get.\n\n"
            + "You can add an optional projection expression (a quote-delimited,\n"
            + "comma-separated list of attributes to retrieve) to limit the\n"
            + "fields returned from the table.\n\n" + "Example:\n" + "    GetItem HelloTable World\n"
            + "    GetItem SiteColors text \"default, bold\"\n";

    if (args.length < 2) {
        System.out.println(USAGE);
        System.exit(1);//from   w w  w  .  jav a 2 s .c  o  m
    }

    String table_name = args[0];
    String name = args[1];
    String projection_expression = null;

    // if a projection expression was included, set it.
    if (args.length == 3) {
        projection_expression = args[2];
    }

    System.out.format("Retrieving item \"%s\" from \"%s\"\n", name, table_name);

    HashMap<String, AttributeValue> key_to_get = new HashMap<String, AttributeValue>();

    key_to_get.put("Name", new AttributeValue(name));

    GetItemRequest request = null;
    if (projection_expression != null) {
        request = new GetItemRequest().withKey(key_to_get).withTableName(table_name)
                .withProjectionExpression(projection_expression);
    } else {
        request = new GetItemRequest().withKey(key_to_get).withTableName(table_name);
    }

    final AmazonDynamoDBClient ddb = new AmazonDynamoDBClient();

    try {
        Map<String, AttributeValue> returned_item = ddb.getItem(request).getItem();
        if (returned_item != null) {
            Set<String> keys = returned_item.keySet();
            for (String key : keys) {
                System.out.format("%s: %s\n", key, returned_item.get(key).toString());
            }
        } else {
            System.out.format("No item found with the key %s!\n", name);
        }
    } catch (AmazonServiceException e) {
        System.err.println(e.getErrorMessage());
        System.exit(1);
    }
}

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From source file:aws.example.dynamodb.PutItem.java

License:Open Source License

public static void main(String[] args) {
    final String USAGE = "\n" + "Usage:\n" + "    PutItem <table> <name> [field=value ...]\n\n" + "Where:\n"
            + "    table    - the table to put the item in.\n"
            + "    name     - a name to add to the table. If the name already\n"
            + "               exists, its entry will be updated.\n"
            + "Additional fields can be added by appending them to the end of the\n" + "input.\n\n"
            + "Example:\n" + "    PutItem Cellists Pau Language=ca Born=1876\n";

    if (args.length < 2) {
        System.out.println(USAGE);
        System.exit(1);/*from w  w  w.  j  a va2s .c  o m*/
    }

    String table_name = args[0];
    String name = args[1];
    ArrayList<String[]> extra_fields = new ArrayList<String[]>();

    // any additional args (fields to add to database)?
    for (int x = 2; x < args.length; x++) {
        String[] fields = args[x].split("=", 2);
        if (fields.length == 2) {
            extra_fields.add(fields);
        } else {
            System.out.format("Invalid argument: %s\n", args[x]);
            System.out.println(USAGE);
            System.exit(1);
        }
    }

    System.out.format("Adding \"%s\" to \"%s\"", name, table_name);
    if (extra_fields.size() > 0) {
        System.out.println("Additional fields:");
        for (String[] field : extra_fields) {
            System.out.format("  %s: %s\n", field[0], field[1]);
        }
    }

    HashMap<String, AttributeValue> item_values = new HashMap<String, AttributeValue>();

    item_values.put("Name", new AttributeValue(name));

    for (String[] field : extra_fields) {
        item_values.put(field[0], new AttributeValue(field[1]));
    }

    final AmazonDynamoDBClient ddb = new AmazonDynamoDBClient();

    try {
        ddb.putItem(table_name, item_values);
    } catch (ResourceNotFoundException e) {
        System.err.format("Error: The table \"%s\" can't be found.\n", table_name);
        System.err.println("Be sure that it exists and that you've typed its name correctly!");
        System.exit(1);
    } catch (AmazonServiceException e) {
        System.err.println(e.getMessage());
        System.exit(1);
    }
    System.out.println("Done!");
}

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