Package net.nineapps.programmingec2.chapter7

Source Code of net.nineapps.programmingec2.chapter7.SimpleDBExamples

package net.nineapps.programmingec2.chapter7;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.simpledb.AmazonSimpleDB;
import com.amazonaws.services.simpledb.AmazonSimpleDBClient;
import com.amazonaws.services.simpledb.model.DomainMetadataRequest;
import com.amazonaws.services.simpledb.model.DomainMetadataResult;
import com.nineapps.programmingec2.Constants;

/**
* Examples for SimpleDB in Chapter 7.
*
* @author flavia
*
*/
public class SimpleDBExamples {

    public static void main(String[] args) {

        String accessKey = Constants.ACCESS_KEY;
        String secretKey = Constants.SECRET_KEY;
        AWSCredentials credentials = new BasicAWSCredentials(accessKey,
                secretKey);

        // get the SimpleDB service
        AmazonSimpleDB simpleDB = new AmazonSimpleDBClient(credentials);
        // get the metadata for a domain called "my_domain"
        DomainMetadataResult result = simpleDB.domainMetadata(
                new DomainMetadataRequest(Constants.A_SIMPLEDB_DOMAIN));
       
        // number of attributes
        // check if we already have 90% of the maximum number of attributes allowed
        if (result.getAttributeNameCount() > 900000000) {

            // ...in that case, send a warning to myself...
            System.out.println("You are reaching the maximum number of attributes allowed for a domain.");
        }

        // calculate the approximate size of the domain in bytes
        // check if we already use 80% of the maximum allowed size of a domain
        if ((result.getAttributeNamesSizeBytes() +
                result.getAttributeValuesSizeBytes() +
                result.getItemNamesSizeBytes()) / 1024 / 1024  > 10 * 1024 * 0.8) {

            // ...in that case, send a warning to myself...
            System.out.println("You are reaching the maximum storage capacity of a domain");
        }
    }

}
TOP

Related Classes of net.nineapps.programmingec2.chapter7.SimpleDBExamples

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.