Example usage for com.amazonaws.services.dynamodbv2 AmazonDynamoDBClient putItem

Introduction

In this page you can find the example usage for com.amazonaws.services.dynamodbv2 AmazonDynamoDBClient putItem.

Prototype

@Override
    public PutItemResult putItem(String tableName, java.util.Map<String, AttributeValue> item) 

Source Link

Usage

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);//www .j a  va  2s.  co 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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