Examples with Item com.amazonaws.services.dynamodbv2.document.Item used on opensource projects

Example 11 with Item

use of com.amazonaws.services.dynamodbv2.document.Item in project aws-doc-sdk-examples by awsdocs.

the class DeleteItem method main.

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);
    }
    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 AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.defaultClient();
    try {
        ddb.deleteItem(table_name, key_to_get);
    } catch (AmazonServiceException e) {
        System.err.println(e.getErrorMessage());
        System.exit(1);
    }
    System.out.println("Done!");
}

Example 12 with Item

use of com.amazonaws.services.dynamodbv2.document.Item in project aws-doc-sdk-examples by awsdocs.

the class DescribeTable method main.

public static void main(String[] args) {
    final String USAGE = "\n" + "Usage:\n" + "    DescribeTable <table>\n\n" + "Where:\n" + "    table - the table to get information about.\n\n" + "Example:\n" + "    DescribeTable HelloTable\n";
    if (args.length < 1) {
        System.out.println(USAGE);
        System.exit(1);
    }
    String table_name = args[0];
    System.out.format("Getting description for %s\n\n", table_name);
    final AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.defaultClient();
    try {
        TableDescription table_info = ddb.describeTable(table_name).getTable();
        if (table_info != null) {
            System.out.format("Table name  : %s\n", table_info.getTableName());
            System.out.format("Table ARN   : %s\n", table_info.getTableArn());
            System.out.format("Status      : %s\n", table_info.getTableStatus());
            System.out.format("Item count  : %d\n", table_info.getItemCount().longValue());
            System.out.format("Size (bytes): %d\n", table_info.getTableSizeBytes().longValue());
            ProvisionedThroughputDescription throughput_info = table_info.getProvisionedThroughput();
            System.out.println("Throughput");
            System.out.format("  Read Capacity : %d\n", throughput_info.getReadCapacityUnits().longValue());
            System.out.format("  Write Capacity: %d\n", throughput_info.getWriteCapacityUnits().longValue());
            List<AttributeDefinition> attributes = table_info.getAttributeDefinitions();
            System.out.println("Attributes");
            for (AttributeDefinition a : attributes) {
                System.out.format("  %s (%s)\n", a.getAttributeName(), a.getAttributeType());
            }
        }
    } catch (AmazonServiceException e) {
        System.err.println(e.getErrorMessage());
        System.exit(1);
    }
    System.out.println("\nDone!");
}

Example 13 with Item

use of com.amazonaws.services.dynamodbv2.document.Item in project aws-doc-sdk-examples by awsdocs.

the class PutItem method main.

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);
    }
    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 AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.defaultClient();
    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!");
}

Example 14 with Item

use of com.amazonaws.services.dynamodbv2.document.Item in project wring by yegor256.

the class DyEvents method post.

@Override
public void post(final String title, final String text) throws IOException {
    final Iterator<Item> items = this.items(title);
    if (items.hasNext()) {
        final Item item = items.next();
        item.put(new AttributeUpdates().with("rank", new AttributeValueUpdate().withValue(new AttributeValue().withN("1")).withAction(AttributeAction.ADD)).with("text", new AttributeValueUpdate().withAction(AttributeAction.PUT).withValue(new AttributeValue().withS(DyEvents.concat(item.get("text").getS(), text)))));
        Logger.info(this, "Event updated for %s: \"%s\"", this.urn, title);
    } else {
        final int rank;
        if (title.startsWith("io.wring.agents.")) {
            rank = -Tv.THOUSAND;
        } else {
            rank = 1;
        }
        this.table().put(new Attributes().with("urn", this.urn).with("title", title).with("text", text).with("rank", rank).with("time", System.currentTimeMillis()));
        Logger.info(this, "Event created for %s: \"%s\"", this.urn, title);
    }
}

Example 15 with Item

use of com.amazonaws.services.dynamodbv2.document.Item in project jcabi-dynamo by jcabi.

the class AwsTable method put.

@Override
public Item put(final Map<String, AttributeValue> attributes) throws IOException {
    final AmazonDynamoDB aws = this.credentials.aws();
    try {
        final PutItemRequest request = new PutItemRequest();
        request.setTableName(this.self);
        request.setItem(attributes);
        request.setReturnValues(ReturnValue.NONE);
        request.setReturnConsumedCapacity(ReturnConsumedCapacity.TOTAL);
        final PutItemResult result = aws.putItem(request);
        final long start = System.currentTimeMillis();
        Logger.info(this, "#put('%[text]s'): created item in '%s', %s, in %[ms]s", attributes, this.self, new PrintableConsumedCapacity(result.getConsumedCapacity()).print(), System.currentTimeMillis() - start);
        return new AwsItem(this.credentials, this.frame(), this.self, new Attributes(attributes).only(this.keys()), new Array<String>(this.keys()));
    } catch (final AmazonClientException ex) {
        throw new IOException(String.format("Failed to put into \"%s\" with %s", this.self, attributes), ex);
    } finally {
        aws.shutdown();
    }
}